-
/*
- * mhbuildsbr.c -- routines to expand/translate MIME composition files
- *
- * $Id$
- *
- * This code is Copyright (c) 2002, by the authors of nmh. See the
- * COPYRIGHT file in the root directory of the nmh distribution for
- * complete copyright information.
- */
+** mhbuildsbr.c -- routines to expand/translate MIME composition files
+**
+** This code is Copyright (c) 2002, by the authors of nmh. See the
+** COPYRIGHT file in the root directory of the nmh distribution for
+** complete copyright information.
+*/
/*
- * This code was originally part of mhn.c. I split it into
- * a separate program (mhbuild.c) and then later split it
- * again (mhbuildsbr.c). But the code still has some of
- * the mhn.c code in it. This program needs additional
- * streamlining and removal of unneeded code.
- */
+** This code was originally part of mhn.c. I split it into
+** a separate program (mhbuild.c) and then later split it
+** again (mhbuildsbr.c). But the code still has some of
+** the mhn.c code in it. This program needs additional
+** streamlining and removal of unneeded code.
+*/
#include <h/mh.h>
#include <fcntl.h>
extern int ebcdicsw;
extern int listsw;
extern int rfc934sw;
+extern int contentidsw;
-extern int endian; /* mhmisc.c */
+extern int endian; /* mhmisc.c */
/* cache policies */
-extern int rcachesw; /* mhcachesbr.c */
-extern int wcachesw; /* mhcachesbr.c */
-
-int checksw = 0; /* Add Content-MD5 field */
+extern int rcachesw; /* mhcachesbr.c */
+extern int wcachesw; /* mhcachesbr.c */
/*
- * Directory to place tmp files. This must
- * be set before these routines are called.
- */
+** Directory to place tmp files. This must
+** be set before these routines are called.
+*/
char *tmp;
pid_t xpid = 0;
static char prefix[] = "----- =_aaaaaaaaaa";
-/*
- * Structure for mapping types to their internal flags
- */
-struct k2v {
- char *kv_key;
- int kv_value;
-};
-
-/*
- * Structures for TEXT messages
- */
-static struct k2v SubText[] = {
- { "plain", TEXT_PLAIN },
- { "richtext", TEXT_RICHTEXT }, /* defined in RFC-1341 */
- { "enriched", TEXT_ENRICHED }, /* defined in RFC-1896 */
- { NULL, TEXT_UNKNOWN } /* this one must be last! */
-};
-
-static struct k2v Charset[] = {
- { "us-ascii", CHARSET_USASCII },
- { "iso-8859-1", CHARSET_LATIN },
- { NULL, CHARSET_UNKNOWN } /* this one must be last! */
-};
-
-/*
- * Structures for MULTIPART messages
- */
-static struct k2v SubMultiPart[] = {
- { "mixed", MULTI_MIXED },
- { "alternative", MULTI_ALTERNATE },
- { "digest", MULTI_DIGEST },
- { "parallel", MULTI_PARALLEL },
- { NULL, MULTI_UNKNOWN } /* this one must be last! */
-};
-
-/*
- * Structures for MESSAGE messages
- */
-static struct k2v SubMessage[] = {
- { "rfc822", MESSAGE_RFC822 },
- { "partial", MESSAGE_PARTIAL },
- { "external-body", MESSAGE_EXTERNAL },
- { NULL, MESSAGE_UNKNOWN } /* this one must be last! */
-};
-
-/*
- * Structure for APPLICATION messages
- */
-static struct k2v SubApplication[] = {
- { "octet-stream", APPLICATION_OCTETS },
- { "postscript", APPLICATION_POSTSCRIPT },
- { NULL, APPLICATION_UNKNOWN } /* this one must be last! */
-};
-
/* mhmisc.c */
int make_intermediates (char *);
void free_encoding (CT, int);
/*
- * prototypes
- */
+** prototypes
+*/
CT build_mime (char *);
-int pidcheck (int);
/*
- * static prototypes
- */
-static CT get_content (FILE *, char *, int);
-static int add_header (CT, char *, char *);
-static int get_ctinfo (char *, CT, int);
-static int get_comment (CT, char **, int);
-static int InitGeneric (CT);
-static int InitText (CT);
-static int InitMultiPart (CT);
-static void reverse_parts (CT);
-static int InitMessage (CT);
-static int params_external (CT, int);
-static int InitApplication (CT);
+** static prototypes
+*/
static int init_decoded_content (CT);
-static int init_encoding (CT, OpenCEFunc);
-static void close_encoding (CT);
-static unsigned long size_encoding (CT);
-static int InitBase64 (CT);
-static int openBase64 (CT, char **);
-static int InitQuoted (CT);
-static int openQuoted (CT, char **);
-static int Init7Bit (CT);
-static int open7Bit (CT, char **);
-static int openExternal (CT, CT, CE, char **, int *);
-static int InitFile (CT);
-static int openFile (CT, char **);
-static int InitFTP (CT);
-static int openFTP (CT, char **);
-static int InitMail (CT);
-static int openMail (CT, char **);
static char *fgetstr (char *, int, FILE *);
static int user_content (FILE *, char *, char *, CT *);
static void set_id (CT, int);
static int scan_content (CT);
static int build_headers (CT);
static char *calculate_digest (CT, int);
-static int readDigest (CT, char *);
-
-/*
- * Structures for mapping (content) types to
- * the functions to handle them.
- */
-struct str2init {
- char *si_key;
- int si_val;
- InitFunc si_init;
-};
-
-static struct str2init str2cts[] = {
- { "application", CT_APPLICATION, InitApplication },
- { "audio", CT_AUDIO, InitGeneric },
- { "image", CT_IMAGE, InitGeneric },
- { "message", CT_MESSAGE, InitMessage },
- { "multipart", CT_MULTIPART, InitMultiPart },
- { "text", CT_TEXT, InitText },
- { "video", CT_VIDEO, InitGeneric },
- { NULL, CT_EXTENSION, NULL }, /* these two must be last! */
- { NULL, CT_UNKNOWN, NULL },
-};
-
-static struct str2init str2ces[] = {
- { "base64", CE_BASE64, InitBase64 },
- { "quoted-printable", CE_QUOTED, InitQuoted },
- { "8bit", CE_8BIT, Init7Bit },
- { "7bit", CE_7BIT, Init7Bit },
- { "binary", CE_BINARY, NULL },
- { NULL, CE_EXTENSION, NULL }, /* these two must be last! */
- { NULL, CE_UNKNOWN, NULL },
-};
-
-/*
- * NOTE WELL: si_key MUST NOT have value of NOTOK
- *
- * si_key is 1 if access method is anonymous.
- */
-static struct str2init str2methods[] = {
- { "afs", 1, InitFile },
- { "anon-ftp", 1, InitFTP },
- { "ftp", 0, InitFTP },
- { "local-file", 0, InitFile },
- { "mail-server", 0, InitMail },
- { NULL, 0, NULL }
-};
-
-
-int
-pidcheck (int status)
-{
- if ((status & 0xff00) == 0xff00 || (status & 0x007f) != SIGQUIT)
- return status;
-
- fflush (stdout);
- fflush (stderr);
- return done (1);
-}
/*
- * Main routine for translating composition file
- * into valid MIME message. It translates the draft
- * into a content structure (actually a tree of content
- * structures). This message then can be manipulated
- * in various ways, including being output via
- * output_message().
- */
+** Main routine for translating composition file
+** into valid MIME message. It translates the draft
+** into a content structure (actually a tree of content
+** structures). This message then can be manipulated
+** in various ways, including being output via
+** output_message().
+*/
CT
build_mime (char *infile)
{
- int compnum, state;
- char buf[BUFSIZ], name[NAMESZ];
- char *cp, *np, *vp;
- struct multipart *m;
- struct part **pp;
- CT ct;
- FILE *in;
-
- umask (~m_gmprot ());
-
- /* open the composition draft */
- if ((in = fopen (infile, "r")) == NULL)
- adios (infile, "unable to open for reading");
-
- /*
- * Allocate space for primary (outside) content
- */
- if ((ct = (CT) calloc (1, sizeof(*ct))) == NULL)
- adios (NULL, "out of memory");
-
- /*
- * Allocate structure for handling decoded content
- * for this part. We don't really need this, but
- * allocate it to remain consistent.
- */
- init_decoded_content (ct);
-
- /*
- * Parse some of the header fields in the composition
- * draft into the linked list of header fields for
- * the new MIME message.
- */
- for (compnum = 1, state = FLD;;) {
- switch (state = m_getfld (state, name, buf, sizeof(buf), in)) {
- case FLD:
- case FLDPLUS:
- case FLDEOF:
- compnum++;
-
- /* abort if draft has Mime-Version header field */
- if (!strcasecmp (name, VRSN_FIELD))
- adios (NULL, "draft shouldn't contain %s: field", VRSN_FIELD);
-
- /* abort if draft has Content-Transfer-Encoding header field */
- if (!strcasecmp (name, ENCODING_FIELD))
- adios (NULL, "draft shouldn't contain %s: field", ENCODING_FIELD);
-
- /* ignore any Content-Type fields in the header */
- if (!strcasecmp (name, TYPE_FIELD)) {
- while (state == FLDPLUS)
- state = m_getfld (state, name, buf, sizeof(buf), in);
- goto finish_field;
- }
-
- /* get copies of the buffers */
- np = add (name, NULL);
- vp = add (buf, NULL);
-
- /* if necessary, get rest of field */
- while (state == FLDPLUS) {
- state = m_getfld (state, name, buf, sizeof(buf), in);
- vp = add (buf, vp); /* add to previous value */
- }
-
- /* Now add the header data to the list */
- add_header (ct, np, vp);
-
-finish_field:
- /* if this wasn't the last header field, then continue */
- if (state != FLDEOF)
- continue;
- /* else fall... */
-
- case FILEEOF:
- adios (NULL, "draft has empty body -- no directives!");
- /* NOTREACHED */
-
- case BODY:
- case BODYEOF:
- fseek (in, (long) (-strlen (buf)), SEEK_CUR);
- break;
-
- case LENERR:
- case FMTERR:
- adios (NULL, "message format error in component #%d", compnum);
+ int compnum, state;
+ char buf[BUFSIZ], name[NAMESZ];
+ char *cp, *np, *vp;
+ struct multipart *m;
+ struct part **pp;
+ CT ct;
+ FILE *in;
- default:
- adios (NULL, "getfld() returned %d", state);
- }
- break;
- }
-
- /*
- * Now add the MIME-Version header field
- * to the list of header fields.
- */
- np = add (VRSN_FIELD, NULL);
- vp = concat (" ", VRSN_VALUE, "\n", NULL);
- add_header (ct, np, vp);
-
- /*
- * We initally assume we will find multiple contents in the
- * draft. So create a multipart/mixed content to hold everything.
- * We can remove this later, if it is not needed.
- */
- if (get_ctinfo ("multipart/mixed", ct, 0) == NOTOK)
- done (1);
- ct->c_type = CT_MULTIPART;
- ct->c_subtype = MULTI_MIXED;
- ct->c_file = add (infile, NULL);
-
- if ((m = (struct multipart *) calloc (1, sizeof(*m))) == NULL)
- adios (NULL, "out of memory");
- ct->c_ctparams = (void *) m;
- pp = &m->mp_parts;
-
- /*
- * read and parse the composition file
- * and the directives it contains.
- */
- while (fgetstr (buf, sizeof(buf) - 1, in)) {
- struct part *part;
- CT p;
-
- if (user_content (in, infile, buf, &p) == DONE) {
- admonish (NULL, "ignoring spurious #end");
- continue;
- }
- if (!p)
- continue;
-
- if ((part = (struct part *) calloc (1, sizeof(*part))) == NULL)
- adios (NULL, "out of memory");
- *pp = part;
- pp = &part->mp_next;
- part->mp_part = p;
- }
-
- /*
- * close the composition draft since
- * it's not needed any longer.
- */
- fclose (in);
-
- /* check if any contents were found */
- if (!m->mp_parts)
- adios (NULL, "no content directives found");
-
- /*
- * If only one content was found, then remove and
- * free the outer multipart content.
- */
- if (!m->mp_parts->mp_next) {
- CT p;
-
- p = m->mp_parts->mp_part;
- m->mp_parts->mp_part = NULL;
-
- /* move header fields */
- p->c_first_hf = ct->c_first_hf;
- p->c_last_hf = ct->c_last_hf;
- ct->c_first_hf = NULL;
- ct->c_last_hf = NULL;
-
- free_content (ct);
- ct = p;
- } else {
- set_id (ct, 1);
- }
-
- /*
- * Fill out, or expand directives. Parse and execute
- * commands specified by profile composition strings.
- */
- compose_content (ct);
-
- if ((cp = strchr(prefix, 'a')) == NULL)
- adios (NULL, "internal error(4)");
-
- /*
- * Scan the contents. Choose a transfer encoding, and
- * check if prefix for multipart boundary clashes with
- * any of the contents.
- */
- while (scan_content (ct) == NOTOK) {
- if (*cp < 'z') {
- (*cp)++;
- } else {
- if (*++cp == 0)
- adios (NULL, "giving up trying to find a unique delimiter string");
- else
- (*cp)++;
- }
- }
+ umask (~m_gmprot ());
- /* Build the rest of the header field structures */
- build_headers (ct);
+ /* open the composition draft */
+ if ((in = fopen (infile, "r")) == NULL)
+ adios (infile, "unable to open for reading");
- return ct;
-}
+ /*
+ ** Allocate space for primary (outside) content
+ */
+ if ((ct = (CT) calloc (1, sizeof(*ct))) == NULL)
+ adios (NULL, "out of memory");
+ /*
+ ** Allocate structure for handling decoded content
+ ** for this part. We don't really need this, but
+ ** allocate it to remain consistent.
+ */
+ init_decoded_content (ct);
-/*
- * Main routine for reading/parsing the headers
- * of a message content.
- *
- * toplevel = 1 # we are at the top level of the message
- * toplevel = 0 # we are inside message type or multipart type
- * # other than multipart/digest
- * toplevel = -1 # we are inside multipart/digest
- */
-
-static CT
-get_content (FILE *in, char *file, int toplevel)
-{
- int compnum, state;
- char buf[BUFSIZ], name[NAMESZ];
- CT ct;
-
- if (!(ct = (CT) calloc (1, sizeof(*ct))))
- adios (NULL, "out of memory");
-
- ct->c_fp = in;
- ct->c_file = add (file, NULL);
- ct->c_begin = ftell (ct->c_fp) + 1;
-
- /*
- * Read the content headers
- */
- for (compnum = 1, state = FLD;;) {
- switch (state = m_getfld (state, name, buf, sizeof(buf), in)) {
- case FLD:
- case FLDPLUS:
- case FLDEOF:
- compnum++;
-
- /* Get MIME-Version field */
- if (!strcasecmp (name, VRSN_FIELD)) {
- int ucmp;
- char c, *cp, *dp;
-
- cp = add (buf, NULL);
- while (state == FLDPLUS) {
- state = m_getfld (state, name, buf, sizeof(buf), in);
- cp = add (buf, cp);
- }
+ /*
+ ** Parse some of the header fields in the composition
+ ** draft into the linked list of header fields for
+ ** the new MIME message.
+ */
+ for (compnum = 1, state = FLD;;) {
+ switch (state = m_getfld (state, name, buf, sizeof(buf), in)) {
+ case FLD:
+ case FLDPLUS:
+ case FLDEOF:
+ compnum++;
+
+ /* abort if draft has Mime-Version header field */
+ if (!mh_strcasecmp (name, VRSN_FIELD))
+ adios (NULL, "draft shouldn't contain %s: field", VRSN_FIELD);
- if (ct->c_vrsn) {
- advise (NULL, "message %s has multiple %s: fields (%s)",
- ct->c_file, VRSN_FIELD, dp = trimcpy (cp));
- free (dp);
- free (cp);
- goto out;
- }
+ /*
+ ** abort if draft has Content-Transfer-Encoding
+ ** header field
+ */
+ if (!mh_strcasecmp (name, ENCODING_FIELD))
+ adios (NULL, "draft shouldn't contain %s: field", ENCODING_FIELD);
+
+ /* ignore any Content-Type fields in the header */
+ if (!mh_strcasecmp (name, TYPE_FIELD)) {
+ while (state == FLDPLUS)
+ state = m_getfld (state, name, buf,
+ sizeof(buf), in);
+ goto finish_field;
+ }
- ct->c_vrsn = cp;
- while (isspace (*cp))
- cp++;
- for (dp = strchr(cp, '\n'); dp; dp = strchr(dp, '\n'))
- *dp++ = ' ';
- for (dp = cp + strlen (cp) - 1; dp >= cp; dp--)
- if (!isspace (*dp))
- break;
- *++dp = '\0';
- if (debugsw)
- fprintf (stderr, "%s: %s\n", VRSN_FIELD, cp);
-
- if (*cp == '(' && get_comment (ct, &cp, 0) == NOTOK)
- goto out;
-
- for (dp = cp; istoken (*dp); dp++)
- continue;
- c = *dp, *dp = '\0';
- ucmp = !strcasecmp (cp, VRSN_VALUE);
- *dp = c;
- if (!ucmp)
- admonish (NULL,
- "message %s has unknown value for %s: field (%s)",
- ct->c_file, VRSN_FIELD, cp);
- goto got_header;
- }
-
- /* Get Content-Type field */
- if (!strcasecmp (name, TYPE_FIELD)) {
- char *cp;
- struct str2init *s2i;
- CI ci = &ct->c_ctinfo;
+ /* get copies of the buffers */
+ np = add (name, NULL);
+ vp = add (buf, NULL);
- cp = add (buf, NULL);
- while (state == FLDPLUS) {
- state = m_getfld (state, name, buf, sizeof(buf), in);
- cp = add (buf, cp);
- }
+ /* if necessary, get rest of field */
+ while (state == FLDPLUS) {
+ state = m_getfld (state, name, buf, sizeof(buf), in);
+ vp = add (buf, vp); /* add to prev value */
+ }
- /* Check if we've already seen a Content-Type header */
- if (ct->c_ctline) {
- char *dp = trimcpy (cp);
+ /* Now add the header data to the list */
+ add_header (ct, np, vp);
- advise (NULL, "message %s has multiple %s: fields (%s)",
- ct->c_file, TYPE_FIELD, dp);
- free (dp);
- free (cp);
- goto out;
- }
+finish_field:
+ /* if this wasn't the last hdr field, then continue */
+ if (state != FLDEOF)
+ continue;
+ /* else fall... */
- /* Parse the Content-Type field */
- if (get_ctinfo (cp, ct, 0) == NOTOK)
- goto out;
+ case FILEEOF:
+ adios (NULL, "draft has empty body -- no directives!");
+ /* NOTREACHED */
- /*
- * Set the Init function and the internal
- * flag for this content type.
- */
- for (s2i = str2cts; s2i->si_key; s2i++)
- if (!strcasecmp (ci->ci_type, s2i->si_key))
+ case BODY:
+ case BODYEOF:
+ fseek (in, (long) (-strlen (buf)), SEEK_CUR);
break;
- if (!s2i->si_key && !uprf (ci->ci_type, "X-"))
- s2i++;
- ct->c_type = s2i->si_val;
- ct->c_ctinitfnx = s2i->si_init;
- goto got_header;
- }
-
- /* Get Content-Transfer-Encoding field */
- if (!strcasecmp (name, ENCODING_FIELD)) {
- char *cp, *dp;
- char c;
- struct str2init *s2i;
-
- cp = add (buf, NULL);
- while (state == FLDPLUS) {
- state = m_getfld (state, name, buf, sizeof(buf), in);
- cp = add (buf, cp);
- }
-
- /*
- * Check if we've already seen the
- * Content-Transfer-Encoding field
- */
- if (ct->c_celine) {
- advise (NULL, "message %s has multiple %s: fields (%s)",
- ct->c_file, ENCODING_FIELD, dp = trimcpy (cp));
- free (dp);
- free (cp);
- goto out;
- }
- ct->c_celine = cp; /* Save copy of this field */
- while (isspace (*cp))
- cp++;
- for (dp = cp; istoken (*dp); dp++)
- continue;
- c = *dp;
- *dp = '\0';
+ case LENERR:
+ case FMTERR:
+ adios (NULL, "message format error in component #%d",
+ compnum);
- /*
- * Find the internal flag and Init function
- * for this transfer encoding.
- */
- for (s2i = str2ces; s2i->si_key; s2i++)
- if (!strcasecmp (cp, s2i->si_key))
- break;
- if (!s2i->si_key && !uprf (cp, "X-"))
- s2i++;
- *dp = c;
- ct->c_encoding = s2i->si_val;
-
- /* Call the Init function for this encoding */
- if (s2i->si_init && (*s2i->si_init) (ct) == NOTOK)
- goto out;
- goto got_header;
- }
-
- /* Get Content-ID field */
- if (!strcasecmp (name, ID_FIELD)) {
- ct->c_id = add (buf, ct->c_id);
- while (state == FLDPLUS) {
- state = m_getfld (state, name, buf, sizeof(buf), in);
- ct->c_id = add (buf, ct->c_id);
- }
- goto got_header;
- }
-
- /* Get Content-Description field */
- if (!strcasecmp (name, DESCR_FIELD)) {
- ct->c_descr = add (buf, ct->c_descr);
- while (state == FLDPLUS) {
- state = m_getfld (state, name, buf, sizeof(buf), in);
- ct->c_descr = add (buf, ct->c_descr);
+ default:
+ adios (NULL, "getfld() returned %d", state);
}
- goto got_header;
- }
-
- /* Get Content-MD5 field */
- if (!strcasecmp (name, MD5_FIELD)) {
- char *cp, *dp, *ep;
+ break;
+ }
- cp = add (buf, NULL);
- while (state == FLDPLUS) {
- state = m_getfld (state, name, buf, sizeof(buf), in);
- cp = add (buf, cp);
- }
+ /*
+ ** Now add the MIME-Version header field
+ ** to the list of header fields.
+ */
+ np = add (VRSN_FIELD, NULL);
+ vp = concat (" ", VRSN_VALUE, "\n", NULL);
+ add_header (ct, np, vp);
- if (!checksw) {
- free (cp);
- goto got_header;
- }
+ /*
+ ** We initally assume we will find multiple contents in the
+ ** draft. So create a multipart/mixed content to hold everything.
+ ** We can remove this later, if it is not needed.
+ */
+ if (get_ctinfo ("multipart/mixed", ct, 0) == NOTOK)
+ done (1);
+ ct->c_type = CT_MULTIPART;
+ ct->c_subtype = MULTI_MIXED;
+ ct->c_file = add (infile, NULL);
- if (ct->c_digested) {
- advise (NULL, "message %s has multiple %s: fields (%s)",
- ct->c_file, MD5_FIELD, dp = trimcpy (cp));
- free (dp);
- free (cp);
- goto out;
- }
+ if ((m = (struct multipart *) calloc (1, sizeof(*m))) == NULL)
+ adios (NULL, "out of memory");
+ ct->c_ctparams = (void *) m;
+ pp = &m->mp_parts;
- ep = cp;
- while (isspace (*cp))
- cp++;
- for (dp = strchr(cp, '\n'); dp; dp = strchr(dp, '\n'))
- *dp++ = ' ';
- for (dp = cp + strlen (cp) - 1; dp >= cp; dp--)
- if (!isspace (*dp))
- break;
- *++dp = '\0';
- if (debugsw)
- fprintf (stderr, "%s: %s\n", MD5_FIELD, cp);
+ /*
+ ** read and parse the composition file
+ ** and the directives it contains.
+ */
+ while (fgetstr (buf, sizeof(buf) - 1, in)) {
+ struct part *part;
+ CT p;
- if (*cp == '(' && get_comment (ct, &cp, 0) == NOTOK) {
- free (ep);
- goto out;
+ if (user_content (in, infile, buf, &p) == DONE) {
+ admonish (NULL, "ignoring spurious #end");
+ continue;
}
+ if (!p)
+ continue;
- for (dp = cp; *dp && !isspace (*dp); dp++)
- continue;
- *dp = '\0';
-
- readDigest (ct, cp);
- free (ep);
- ct->c_digested++;
- goto got_header;
- }
-
-#if 0
- if (uprf (name, XXX_FIELD_PRF))
- advise (NULL, "unknown field (%s) in message %s",
- name, ct->c_file);
- /* and fall... */
-#endif
+ if ((part = (struct part *) calloc (1, sizeof(*part))) == NULL)
+ adios (NULL, "out of memory");
+ *pp = part;
+ pp = &part->mp_next;
+ part->mp_part = p;
+ }
- while (state == FLDPLUS)
- state = m_getfld (state, name, buf, sizeof(buf), in);
+ /*
+ ** close the composition draft since
+ ** it's not needed any longer.
+ */
+ fclose (in);
-got_header:
- if (state != FLDEOF) {
- ct->c_begin = ftell (in) + 1;
- continue;
- }
- /* else fall... */
+ /* check if any contents were found */
+ if (!m->mp_parts)
+ adios (NULL, "no content directives found");
- case BODY:
- case BODYEOF:
- ct->c_begin = ftell (in) - strlen (buf);
- break;
+ /*
+ ** If only one content was found, then remove and
+ ** free the outer multipart content.
+ */
+ if (!m->mp_parts->mp_next) {
+ CT p;
- case FILEEOF:
- ct->c_begin = ftell (in);
- break;
+ p = m->mp_parts->mp_part;
+ m->mp_parts->mp_part = NULL;
- case LENERR:
- case FMTERR:
- adios (NULL, "message format error in component #%d", compnum);
+ /* move header fields */
+ p->c_first_hf = ct->c_first_hf;
+ p->c_last_hf = ct->c_last_hf;
+ ct->c_first_hf = NULL;
+ ct->c_last_hf = NULL;
- default:
- adios (NULL, "getfld() returned %d", state);
- }
- break;
- }
-
- /*
- * Check if we saw a Content-Type field.
- * If not, then assign a default value for
- * it, and the Init function.
- */
- if (!ct->c_ctline) {
- /*
- * If we are inside a multipart/digest message,
- * so default type is message/rfc822
- */
- if (toplevel < 0) {
- if (get_ctinfo ("message/rfc822", ct, 0) == NOTOK)
- goto out;
- ct->c_type = CT_MESSAGE;
- ct->c_ctinitfnx = InitMessage;
+ free_content (ct);
+ ct = p;
} else {
- /*
- * Else default type is text/plain
- */
- if (get_ctinfo ("text/plain", ct, 0) == NOTOK)
- goto out;
- ct->c_type = CT_TEXT;
- ct->c_ctinitfnx = InitText;
+ set_id (ct, 1);
}
- }
- /* Use default Transfer-Encoding, if necessary */
- if (!ct->c_celine) {
- ct->c_encoding = CE_7BIT;
- Init7Bit (ct);
- }
-
- return ct;
+ /*
+ ** Fill out, or expand directives. Parse and execute
+ ** commands specified by profile composition strings.
+ */
+ compose_content (ct);
-out:
- free_content (ct);
- return NULL;
-}
+ if ((cp = strchr(prefix, 'a')) == NULL)
+ adios (NULL, "internal error(4)");
+ /*
+ ** Scan the contents. Choose a transfer encoding, and
+ ** check if prefix for multipart boundary clashes with
+ ** any of the contents.
+ */
+ while (scan_content (ct) == NOTOK) {
+ if (*cp < 'z') {
+ (*cp)++;
+ } else {
+ if (*++cp == 0)
+ adios (NULL, "giving up trying to find a unique delimiter string");
+ else
+ (*cp)++;
+ }
+ }
-/*
- * small routine to add header field to list
- */
+ /* Build the rest of the header field structures */
+ build_headers (ct);
-static int
-add_header (CT ct, char *name, char *value)
-{
- HF hp;
-
- /* allocate header field structure */
- hp = mh_xmalloc (sizeof(*hp));
-
- /* link data into header structure */
- hp->name = name;
- hp->value = value;
- hp->next = NULL;
-
- /* link header structure into the list */
- if (ct->c_first_hf == NULL) {
- ct->c_first_hf = hp; /* this is the first */
- ct->c_last_hf = hp;
- } else {
- ct->c_last_hf->next = hp; /* add it to the end */
- ct->c_last_hf = hp;
- }
-
- return 0;
+ return ct;
}
/*
- * Used to parse both:
- * 1) Content-Type line
- * 2) composition directives
- *
- * and fills in the information of the CTinfo structure.
- */
+** Set up structures for placing unencoded
+** content when building parts.
+*/
static int
-get_ctinfo (char *cp, CT ct, int magic)
+init_decoded_content (CT ct)
{
- int i;
- char *dp, **ap, **ep;
- char c;
- CI ci;
-
- ci = &ct->c_ctinfo;
- i = strlen (invo_name) + 2;
-
- /* store copy of Content-Type line */
- cp = ct->c_ctline = add (cp, NULL);
-
- while (isspace (*cp)) /* trim leading spaces */
- cp++;
-
- /* change newlines to spaces */
- for (dp = strchr(cp, '\n'); dp; dp = strchr(dp, '\n'))
- *dp++ = ' ';
-
- /* trim trailing spaces */
- for (dp = cp + strlen (cp) - 1; dp >= cp; dp--)
- if (!isspace (*dp))
- break;
- *++dp = '\0';
-
- if (debugsw)
- fprintf (stderr, "%s: %s\n", TYPE_FIELD, cp);
-
- if (*cp == '(' && get_comment (ct, &cp, 1) == NOTOK)
- return NOTOK;
-
- for (dp = cp; istoken (*dp); dp++)
- continue;
- c = *dp, *dp = '\0';
- ci->ci_type = add (cp, NULL); /* store content type */
- *dp = c, cp = dp;
-
- if (!*ci->ci_type) {
- advise (NULL, "invalid %s: field in message %s (empty type)",
- TYPE_FIELD, ct->c_file);
- return NOTOK;
- }
-
- /* down case the content type string */
- for (dp = ci->ci_type; *dp; dp++)
- if (isalpha(*dp) && isupper (*dp))
- *dp = tolower (*dp);
-
- while (isspace (*cp))
- cp++;
-
- if (*cp == '(' && get_comment (ct, &cp, 1) == NOTOK)
- return NOTOK;
-
- if (*cp != '/') {
- if (!magic)
- ci->ci_subtype = add ("", NULL);
- goto magic_skip;
- }
-
- cp++;
- while (isspace (*cp))
- cp++;
-
- if (*cp == '(' && get_comment (ct, &cp, 1) == NOTOK)
- return NOTOK;
-
- for (dp = cp; istoken (*dp); dp++)
- continue;
- c = *dp, *dp = '\0';
- ci->ci_subtype = add (cp, NULL); /* store the content subtype */
- *dp = c, cp = dp;
-
- if (!*ci->ci_subtype) {
- advise (NULL,
- "invalid %s: field in message %s (empty subtype for \"%s\")",
- TYPE_FIELD, ct->c_file, ci->ci_type);
- return NOTOK;
- }
-
- /* down case the content subtype string */
- for (dp = ci->ci_subtype; *dp; dp++)
- if (isalpha(*dp) && isupper (*dp))
- *dp = tolower (*dp);
-
-magic_skip:
- while (isspace (*cp))
- cp++;
-
- if (*cp == '(' && get_comment (ct, &cp, 1) == NOTOK)
- return NOTOK;
-
- /*
- * Parse attribute/value pairs given with Content-Type
- */
- ep = (ap = ci->ci_attrs) + NPARMS;
- while (*cp == ';') {
- char *vp, *up;
-
- if (ap >= ep) {
- advise (NULL,
- "too many parameters in message %s's %s: field (%d max)",
- ct->c_file, TYPE_FIELD, NPARMS);
- return NOTOK;
- }
+ CE ce;
- cp++;
- while (isspace (*cp))
- cp++;
+ if ((ce = (CE) calloc (1, sizeof(*ce))) == NULL)
+ adios (NULL, "out of memory");
- if (*cp == '(' && get_comment (ct, &cp, 1) == NOTOK)
- return NOTOK;
+ ct->c_cefile = ce;
+ ct->c_ceopenfnx = open7Bit; /* since unencoded */
+ ct->c_ceclosefnx = close_encoding;
+ ct->c_cesizefnx = NULL; /* since unencoded */
- if (*cp == 0) {
- advise (NULL,
- "extraneous trailing ';' in message %s's %s: parameter list",
- ct->c_file, TYPE_FIELD);
- return OK;
- }
+ return OK;
+}
- /* down case the attribute name */
- for (dp = cp; istoken (*dp); dp++)
- if (isalpha(*dp) && isupper (*dp))
- *dp = tolower (*dp);
-
- for (up = dp; isspace (*dp); )
- dp++;
- if (dp == cp || *dp != '=') {
- advise (NULL,
- "invalid parameter in message %s's %s: field\n%*.*sparameter %s (error detected at offset %d)",
- ct->c_file, TYPE_FIELD, i, i, "", cp, dp - cp);
- return NOTOK;
- }
- vp = (*ap = add (cp, NULL)) + (up - cp);
- *vp = '\0';
- for (dp++; isspace (*dp); )
- dp++;
-
- /* now add the attribute value */
- ci->ci_values[ap - ci->ci_attrs] = vp = *ap + (dp - cp);
-
- if (*dp == '"') {
- for (cp = ++dp, dp = vp;;) {
- switch (c = *cp++) {
- case '\0':
-bad_quote:
- advise (NULL,
- "invalid quoted-string in message %s's %s: field\n%*.*s(parameter %s)",
- ct->c_file, TYPE_FIELD, i, i, "", *ap);
- return NOTOK;
-
- case '\\':
- *dp++ = c;
- if ((c = *cp++) == '\0')
- goto bad_quote;
- /* else fall... */
+static char *
+fgetstr (char *s, int n, FILE *stream)
+{
+ char *cp, *ep;
+
+ for (ep = (cp = s) + n; cp < ep; ) {
+ int i;
- default:
- *dp++ = c;
- continue;
+ if (!fgets (cp, n, stream))
+ return (cp != s ? s : NULL);
+ if (cp == s && *cp != '#')
+ return s;
- case '"':
- *dp = '\0';
+ cp += (i = strlen (cp)) - 1;
+ if (i <= 1 || *cp-- != '\n' || *cp != '\\')
break;
- }
- break;
- }
- } else {
- for (cp = dp, dp = vp; istoken (*cp); cp++, dp++)
- continue;
- *dp = '\0';
- }
- if (!*vp) {
- advise (NULL,
- "invalid parameter in message %s's %s: field\n%*.*s(parameter %s)",
- ct->c_file, TYPE_FIELD, i, i, "", *ap);
- return NOTOK;
- }
- ap++;
-
- while (isspace (*cp))
- cp++;
-
- if (*cp == '(' && get_comment (ct, &cp, 1) == NOTOK)
- return NOTOK;
- }
-
- /*
- * Get any <Content-Id> given in buffer
- */
- if (magic && *cp == '<') {
- if (ct->c_id) {
- free (ct->c_id);
- ct->c_id = NULL;
- }
- if (!(dp = strchr(ct->c_id = ++cp, '>'))) {
- advise (NULL, "invalid ID in message %s", ct->c_file);
- return NOTOK;
- }
- c = *dp;
- *dp = '\0';
- if (*ct->c_id)
- ct->c_id = concat ("<", ct->c_id, ">\n", NULL);
- else
- ct->c_id = NULL;
- *dp++ = c;
- cp = dp;
-
- while (isspace (*cp))
- cp++;
- }
-
- /*
- * Get any [Content-Description] given in buffer.
- */
- if (magic && *cp == '[') {
- ct->c_descr = ++cp;
- for (dp = cp + strlen (cp) - 1; dp >= cp; dp--)
- if (*dp == ']')
- break;
- if (dp < cp) {
- advise (NULL, "invalid description in message %s", ct->c_file);
- ct->c_descr = NULL;
- return NOTOK;
+ *cp = '\0';
+ n -= (i - 2);
}
-
- c = *dp;
- *dp = '\0';
- if (*ct->c_descr)
- ct->c_descr = concat (ct->c_descr, "\n", NULL);
- else
- ct->c_descr = NULL;
- *dp++ = c;
- cp = dp;
-
- while (isspace (*cp))
- cp++;
- }
-
- /*
- * Check if anything is left over
- */
- if (*cp) {
- if (magic)
- ci->ci_magic = add (cp, NULL);
- else
- advise (NULL,
- "extraneous information in message %s's %s: field\n%*.*s(%s)",
- ct->c_file, TYPE_FIELD, i, i, "", cp);
- }
-
- return OK;
+
+ return s;
}
+/*
+** Parse the composition draft for text and directives.
+** Do initial setup of Content structure.
+*/
+
static int
-get_comment (CT ct, char **ap, int istype)
+user_content (FILE *in, char *file, char *buf, CT *ctp)
{
- int i;
- char *bp, *cp;
- char c, buffer[BUFSIZ], *dp;
- CI ci;
-
- ci = &ct->c_ctinfo;
- cp = *ap;
- bp = buffer;
- cp++;
-
- for (i = 0;;) {
- switch (c = *cp++) {
- case '\0':
-invalid:
- advise (NULL, "invalid comment in message %s's %s: field",
- ct->c_file, istype ? TYPE_FIELD : VRSN_FIELD);
- return NOTOK;
-
- case '\\':
- *bp++ = c;
- if ((c = *cp++) == '\0')
- goto invalid;
- *bp++ = c;
- continue;
-
- case '(':
- i++;
- /* and fall... */
- default:
- *bp++ = c;
- continue;
-
- case ')':
- if (--i < 0)
- break;
- *bp++ = c;
- continue;
+ int extrnal, vrsn;
+ unsigned char *cp;
+ char **ap;
+ char buffer[BUFSIZ];
+ struct multipart *m;
+ struct part **pp;
+ struct stat st;
+ struct str2init *s2i;
+ CI ci;
+ CT ct;
+ CE ce;
+
+ if (buf[0] == '\n' || strcmp (buf, "#\n") == 0) {
+ *ctp = NULL;
+ return OK;
}
- break;
- }
- *bp = '\0';
- if (istype) {
- if ((dp = ci->ci_comment)) {
- ci->ci_comment = concat (dp, " ", buffer, NULL);
- free (dp);
- } else {
- ci->ci_comment = add (buffer, NULL);
- }
- }
+ /* allocate basic Content structure */
+ if ((ct = (CT) calloc (1, sizeof(*ct))) == NULL)
+ adios (NULL, "out of memory");
+ *ctp = ct;
- while (isspace (*cp))
- cp++;
+ /* allocate basic structure for handling decoded content */
+ init_decoded_content (ct);
+ ce = ct->c_cefile;
- *ap = cp;
- return OK;
-}
+ ci = &ct->c_ctinfo;
+ set_id (ct, 0);
+ /*
+ ** Handle inline text. Check if line
+ ** is one of the following forms:
+ **
+ ** 1) doesn't begin with '#' (implicit directive)
+ ** 2) begins with "##" (implicit directive)
+ ** 3) begins with "#<"
+ */
+ if (buf[0] != '#' || buf[1] == '#' || buf[1] == '<') {
+ int headers;
+ int inlineD;
+ long pos;
+ char content[BUFSIZ];
+ FILE *out;
+ char *cp;
-/*
- * CONTENTS
- *
- * Handles content types audio, image, and video.
- * There's not much to do right here.
- */
+ cp = m_mktemp2(NULL, invo_name, NULL, &out);
+ if (cp == NULL)
+ adios("mhbuildsbr", "unable to create temporary file");
-static int
-InitGeneric (CT ct)
-{
- return OK; /* not much to do here */
-}
+ /* use a temp file to collect the plain text lines */
+ ce->ce_file = add (cp, NULL);
+ ce->ce_unlink = 1;
+ if (buf[0] == '#' && buf[1] == '<') {
+ strncpy (content, buf + 2, sizeof(content));
+ inlineD = 1;
+ goto rock_and_roll;
+ } else {
+ inlineD = 0;
+ }
-/*
- * TEXT
- */
+ /* the directive is implicit */
+ strncpy (content, "text/plain", sizeof(content));
+ headers = 0;
+ strncpy (buffer, buf[0] != '#' ? buf : buf + 1, sizeof(buffer));
+ for (;;) {
+ int i;
-static int
-InitText (CT ct)
-{
- char **ap, **ep;
- struct k2v *kv;
- struct text *t;
- CI ci = &ct->c_ctinfo;
-
- /* check for missing subtype */
- if (!*ci->ci_subtype)
- ci->ci_subtype = add ("plain", ci->ci_subtype);
-
- /* match subtype */
- for (kv = SubText; kv->kv_key; kv++)
- if (!strcasecmp (ci->ci_subtype, kv->kv_key))
- break;
- ct->c_subtype = kv->kv_value;
-
- /* allocate text character set structure */
- if ((t = (struct text *) calloc (1, sizeof(*t))) == NULL)
- adios (NULL, "out of memory");
- ct->c_ctparams = (void *) t;
-
- /* initially mark character set as unspecified */
- t->tx_charset = CHARSET_UNSPECIFIED;
-
- /* scan for charset parameter */
- for (ap = ci->ci_attrs, ep = ci->ci_values; *ap; ap++, ep++)
- if (!strcasecmp (*ap, "charset"))
- break;
-
- /* check if content specified a character set */
- if (*ap) {
- /* match character set or set to CHARSET_UNKNOWN */
- for (kv = Charset; kv->kv_key; kv++)
- if (!strcasecmp (*ep, kv->kv_key))
- break;
- t->tx_charset = kv->kv_value;
- }
+ if (headers >= 0 && uprf (buffer, DESCR_FIELD)
+ && buffer[i = strlen (DESCR_FIELD)] == ':') {
+ headers = 1;
- return OK;
-}
+again_descr:
+ ct->c_descr = add (buffer + i + 1, ct->c_descr);
+ if (!fgetstr (buffer, sizeof(buffer) - 1, in))
+ adios (NULL, "end-of-file after %s: field in plaintext", DESCR_FIELD);
+ switch (buffer[0]) {
+ case ' ':
+ case '\t':
+ i = -1;
+ goto again_descr;
+
+ case '#':
+ adios (NULL, "#-directive after %s: field in plaintext", DESCR_FIELD);
+ /* NOTREACHED */
+
+ default:
+ break;
+ }
+ }
+ if (headers >= 0 && uprf (buffer, DISPO_FIELD)
+ && buffer[i = strlen (DISPO_FIELD)] == ':') {
+ headers = 1;
+
+again_dispo:
+ ct->c_dispo = add (buffer + i + 1, ct->c_dispo);
+ if (!fgetstr (buffer, sizeof(buffer) - 1, in))
+ adios (NULL, "end-of-file after %s: field in plaintext", DISPO_FIELD);
+ switch (buffer[0]) {
+ case ' ':
+ case '\t':
+ i = -1;
+ goto again_dispo;
+
+ case '#':
+ adios (NULL, "#-directive after %s: field in plaintext", DISPO_FIELD);
+ /* NOTREACHED */
+
+ default:
+ break;
+ }
+ }
-/*
- * MULTIPART
- */
+ if (headers != 1 || buffer[0] != '\n')
+ fputs (buffer, out);
-static int
-InitMultiPart (CT ct)
-{
- int inout;
- long last, pos;
- char *cp, *dp, **ap, **ep;
- char *bp, buffer[BUFSIZ];
- struct multipart *m;
- struct k2v *kv;
- struct part *part, **next;
- CI ci = &ct->c_ctinfo;
- CT p;
- FILE *fp;
-
- /*
- * The encoding for multipart messages must be either
- * 7bit, 8bit, or binary (per RFC2045).
- */
- if (ct->c_encoding != CE_7BIT && ct->c_encoding != CE_8BIT
- && ct->c_encoding != CE_BINARY) {
- admonish (NULL,
- "\"%s/%s\" type in message %s must be encoded in 7bit, 8bit, or binary",
- ci->ci_type, ci->ci_subtype, ct->c_file);
- return NOTOK;
- }
-
- /* match subtype */
- for (kv = SubMultiPart; kv->kv_key; kv++)
- if (!strcasecmp (ci->ci_subtype, kv->kv_key))
- break;
- ct->c_subtype = kv->kv_value;
-
- /*
- * Check for "boundary" parameter, which is
- * required for multipart messages.
- */
- for (ap = ci->ci_attrs, ep = ci->ci_values; *ap; ap++, ep++) {
- if (!strcasecmp (*ap, "boundary")) {
- bp = *ep;
- break;
- }
- }
-
- /* complain if boundary parameter is missing */
- if (!*ap) {
- advise (NULL,
- "a \"boundary\" parameter is mandatory for \"%s/%s\" type in message %s's %s: field",
- ci->ci_type, ci->ci_subtype, ct->c_file, TYPE_FIELD);
- return NOTOK;
- }
-
- /* allocate primary structure for multipart info */
- if ((m = (struct multipart *) calloc (1, sizeof(*m))) == NULL)
- adios (NULL, "out of memory");
- ct->c_ctparams = (void *) m;
-
- /* check if boundary parameter contains only whitespace characters */
- for (cp = bp; isspace (*cp); cp++)
- continue;
- if (!*cp) {
- advise (NULL, "invalid \"boundary\" parameter for \"%s/%s\" type in message %s's %s: field",
- ci->ci_type, ci->ci_subtype, ct->c_file, TYPE_FIELD);
- return NOTOK;
- }
-
- /* remove trailing whitespace from boundary parameter */
- for (cp = bp, dp = cp + strlen (cp) - 1; dp > cp; dp--)
- if (!isspace (*dp))
- break;
- *++dp = '\0';
-
- /* record boundary separators */
- m->mp_start = concat (bp, "\n", NULL);
- m->mp_stop = concat (bp, "--\n", NULL);
-
- if (!ct->c_fp && (ct->c_fp = fopen (ct->c_file, "r")) == NULL) {
- advise (ct->c_file, "unable to open for reading");
- return NOTOK;
- }
-
- fseek (fp = ct->c_fp, pos = ct->c_begin, SEEK_SET);
- last = ct->c_end;
- next = &m->mp_parts;
- part = NULL;
- inout = 1;
-
- while (fgets (buffer, sizeof(buffer) - 1, fp)) {
- if (pos > last)
- break;
-
- pos += strlen (buffer);
- if (buffer[0] != '-' || buffer[1] != '-')
- continue;
- if (inout) {
- if (strcmp (buffer + 2, m->mp_start))
- continue;
-next_part:
- if ((part = (struct part *) calloc (1, sizeof(*part))) == NULL)
- adios (NULL, "out of memory");
- *next = part;
- next = &part->mp_next;
-
- if (!(p = get_content (fp, ct->c_file,
- rfc934sw && ct->c_subtype == MULTI_DIGEST ? -1 : 0))) {
- fclose (ct->c_fp);
- ct->c_fp = NULL;
- return NOTOK;
- }
- p->c_fp = NULL;
- part->mp_part = p;
- pos = p->c_begin;
- fseek (fp, pos, SEEK_SET);
- inout = 0;
- } else {
- if (strcmp (buffer + 2, m->mp_start) == 0) {
- inout = 1;
-end_part:
- p = part->mp_part;
- p->c_end = ftell(fp) - (strlen(buffer) + 1);
- if (p->c_end < p->c_begin)
- p->c_begin = p->c_end;
- if (inout)
- goto next_part;
- goto last_part;
- } else {
- if (strcmp (buffer + 2, m->mp_stop) == 0)
- goto end_part;
- }
- }
- }
-
- advise (NULL, "bogus multipart content in message %s", ct->c_file);
- if (!inout && part) {
- p = part->mp_part;
- p->c_end = ct->c_end;
-
- if (p->c_begin >= p->c_end) {
- for (next = &m->mp_parts; *next != part;
- next = &((*next)->mp_next))
- continue;
- *next = NULL;
- free_content (p);
- free ((char *) part);
- }
- }
-
-last_part:
- /* reverse the order of the parts for multipart/alternative */
- if (ct->c_subtype == MULTI_ALTERNATE)
- reverse_parts (ct);
-
- /*
- * label all subparts with part number, and
- * then initialize the content of the subpart.
- */
- {
- int partnum;
- char *pp;
- char partnam[BUFSIZ];
-
- if (ct->c_partno) {
- snprintf (partnam, sizeof(partnam), "%s.", ct->c_partno);
- pp = partnam + strlen (partnam);
- } else {
- pp = partnam;
- }
+rock_and_roll:
+ headers = -1;
+ pos = ftell (in);
+ if ((cp = fgetstr (buffer, sizeof(buffer) - 1, in)) == NULL)
+ break;
+ if (buffer[0] == '#') {
+ char *bp;
+
+ if (buffer[1] != '#')
+ break;
+ for (cp = (bp = buffer) + 1; *cp; cp++)
+ *bp++ = *cp;
+ *bp = '\0';
+ }
+ }
- for (part = m->mp_parts, partnum = 1; part;
- part = part->mp_next, partnum++) {
- p = part->mp_part;
+ if (listsw)
+ ct->c_end = ftell (out);
+ fclose (out);
- sprintf (pp, "%d", partnum);
- p->c_partno = add (partnam, NULL);
+ /* parse content type */
+ if (get_ctinfo (content, ct, inlineD) == NOTOK)
+ done (1);
- /* initialize the content of the subparts */
- if (p->c_ctinitfnx && (*p->c_ctinitfnx) (p) == NOTOK) {
- fclose (ct->c_fp);
- ct->c_fp = NULL;
- return NOTOK;
- }
- }
- }
+ for (s2i = str2cts; s2i->si_key; s2i++)
+ if (!mh_strcasecmp (ci->ci_type, s2i->si_key))
+ break;
+ if (!s2i->si_key && !uprf (ci->ci_type, "X-"))
+ s2i++;
- fclose (ct->c_fp);
- ct->c_fp = NULL;
- return OK;
-}
+ /*
+ ** check type specified (possibly implicitly)
+ */
+ switch (ct->c_type = s2i->si_val) {
+ case CT_MESSAGE:
+ if (!mh_strcasecmp (ci->ci_subtype, "rfc822")) {
+ ct->c_encoding = CE_7BIT;
+ goto call_init;
+ }
+ /* else fall... */
+ case CT_MULTIPART:
+ adios (NULL, "it doesn't make sense to define an in-line %s content",
+ ct->c_type == CT_MESSAGE ? "message" :
+ "multipart");
+ /* NOTREACHED */
+ default:
+call_init:
+ if ((ct->c_ctinitfnx = s2i->si_init))
+ (*ct->c_ctinitfnx) (ct);
+ break;
+ }
-/*
- * reverse the order of the parts of a multipart
- */
+ if (cp)
+ fseek (in, pos, SEEK_SET);
+ return OK;
+ }
-static void
-reverse_parts (CT ct)
-{
- int i;
- struct multipart *m;
- struct part **base, **bmp, **next, *part;
-
- m = (struct multipart *) ct->c_ctparams;
-
- /* if only one part, just return */
- if (!m->mp_parts || !m->mp_parts->mp_next)
- return;
-
- /* count number of parts */
- i = 0;
- for (part = m->mp_parts; part; part = part->mp_next)
- i++;
-
- /* allocate array of pointers to the parts */
- if (!(base = (struct part **) calloc ((size_t) (i + 1), sizeof(*base))))
- adios (NULL, "out of memory");
- bmp = base;
-
- /* point at all the parts */
- for (part = m->mp_parts; part; part = part->mp_next)
- *bmp++ = part;
- *bmp = NULL;
-
- /* reverse the order of the parts */
- next = &m->mp_parts;
- for (bmp--; bmp >= base; bmp--) {
- part = *bmp;
- *next = part;
- next = &part->mp_next;
- }
- *next = NULL;
-
- /* free array of pointers */
- free ((char *) base);
-}
+ /*
+ ** If we've reached this point, the next line
+ ** must be some type of explicit directive.
+ */
+ /* check if directive is external-type */
+ extrnal = (buf[1] == '@');
-/*
- * MESSAGE
- */
+ /* parse directive */
+ if (get_ctinfo (buf + (extrnal ? 2 : 1), ct, 1) == NOTOK)
+ done (1);
-static int
-InitMessage (CT ct)
-{
- struct k2v *kv;
- CI ci = &ct->c_ctinfo;
-
- if ((ct->c_encoding != CE_7BIT) && (ct->c_encoding != CE_8BIT)) {
- admonish (NULL,
- "\"%s/%s\" type in message %s should be encoded in 7bit or 8bit",
- ci->ci_type, ci->ci_subtype, ct->c_file);
- return NOTOK;
- }
-
- /* check for missing subtype */
- if (!*ci->ci_subtype)
- ci->ci_subtype = add ("rfc822", ci->ci_subtype);
-
- /* match subtype */
- for (kv = SubMessage; kv->kv_key; kv++)
- if (!strcasecmp (ci->ci_subtype, kv->kv_key))
- break;
- ct->c_subtype = kv->kv_value;
-
- switch (ct->c_subtype) {
- case MESSAGE_RFC822:
- break;
-
- case MESSAGE_PARTIAL:
- {
- char **ap, **ep;
- struct partial *p;
-
- if ((p = (struct partial *) calloc (1, sizeof(*p))) == NULL)
- adios (NULL, "out of memory");
- ct->c_ctparams = (void *) p;
-
- /* scan for parameters "id", "number", and "total" */
- for (ap = ci->ci_attrs, ep = ci->ci_values; *ap; ap++, ep++) {
- if (!strcasecmp (*ap, "id")) {
- p->pm_partid = add (*ep, NULL);
- continue;
- }
- if (!strcasecmp (*ap, "number")) {
- if (sscanf (*ep, "%d", &p->pm_partno) != 1
- || p->pm_partno < 1) {
-invalid_param:
- advise (NULL,
- "invalid %s parameter for \"%s/%s\" type in message %s's %s field",
- *ap, ci->ci_type, ci->ci_subtype,
- ct->c_file, TYPE_FIELD);
- return NOTOK;
- }
- continue;
- }
- if (!strcasecmp (*ap, "total")) {
- if (sscanf (*ep, "%d", &p->pm_maxno) != 1
- || p->pm_maxno < 1)
- goto invalid_param;
- continue;
- }
- }
+ /* check directive against the list of MIME types */
+ for (s2i = str2cts; s2i->si_key; s2i++)
+ if (!mh_strcasecmp (ci->ci_type, s2i->si_key))
+ break;
+
+ /*
+ ** Check if the directive specified a valid type.
+ ** This will happen if it was one of the following forms:
+ **
+ ** #type/subtype (or)
+ ** #@type/subtype
+ */
+ if (s2i->si_key) {
+ if (!ci->ci_subtype)
+ adios (NULL, "missing subtype in \"#%s\"", ci->ci_type);
+
+ switch (ct->c_type = s2i->si_val) {
+ case CT_MULTIPART:
+ adios (NULL, "use \"#begin ... #end\" instead of \"#%s/%s\"",
+ ci->ci_type, ci->ci_subtype);
+ /* NOTREACHED */
+
+ case CT_MESSAGE:
+ if (!mh_strcasecmp (ci->ci_subtype, "partial"))
+ adios (NULL, "sorry, \"#%s/%s\" isn't supported",
+ ci->ci_type, ci->ci_subtype);
+ if (!mh_strcasecmp (ci->ci_subtype, "external-body"))
+ adios (NULL, "use \"#@type/subtype ... [] ...\" instead of \"#%s/%s\"",
+ ci->ci_type, ci->ci_subtype);
+use_forw:
+ adios (NULL,
+ "use \"#forw [+folder] [msgs]\" instead of \"#%s/%s\"",
+ ci->ci_type, ci->ci_subtype);
+ /* NOTREACHED */
- if (!p->pm_partid
- || !p->pm_partno
- || (p->pm_maxno && p->pm_partno > p->pm_maxno)) {
- advise (NULL,
- "invalid parameters for \"%s/%s\" type in message %s's %s field",
- ci->ci_type, ci->ci_subtype,
- ct->c_file, TYPE_FIELD);
- return NOTOK;
+ default:
+ if ((ct->c_ctinitfnx = s2i->si_init))
+ (*ct->c_ctinitfnx) (ct);
+ break;
}
- }
- break;
- case MESSAGE_EXTERNAL:
- {
- int exresult;
- struct exbody *e;
- CT p;
- FILE *fp;
+ /*
+ ** #@type/subtype (external types directive)
+ */
+ if (extrnal) {
+ struct exbody *e;
+ CT p;
- if ((e = (struct exbody *) calloc (1, sizeof(*e))) == NULL)
- adios (NULL, "out of memory");
- ct->c_ctparams = (void *) e;
+ if (!ci->ci_magic)
+ adios (NULL, "need external information for \"#@%s/%s\"",
+ ci->ci_type, ci->ci_subtype);
+ p = ct;
- if (!ct->c_fp
- && (ct->c_fp = fopen (ct->c_file, "r")) == NULL) {
- advise (ct->c_file, "unable to open for reading");
- return NOTOK;
+ snprintf (buffer, sizeof(buffer), "message/external-body; %s", ci->ci_magic);
+ free (ci->ci_magic);
+ ci->ci_magic = NULL;
+
+ /*
+ ** Since we are using the current Content structure to
+ ** hold information about the type of the external
+ ** reference, we need to create another Content
+ ** structure for the message/external-body to wrap
+ ** it in.
+ */
+ if ((ct = (CT) calloc (1, sizeof(*ct))) == NULL)
+ adios (NULL, "out of memory");
+ *ctp = ct;
+ ci = &ct->c_ctinfo;
+ if (get_ctinfo (buffer, ct, 0) == NOTOK)
+ done (1);
+ ct->c_type = CT_MESSAGE;
+ ct->c_subtype = MESSAGE_EXTERNAL;
+
+ if ((e = (struct exbody *) calloc (1, sizeof(*e))) == NULL)
+ adios (NULL, "out of memory");
+ ct->c_ctparams = (void *) e;
+
+ e->eb_parent = ct;
+ e->eb_content = p;
+ p->c_ctexbody = e;
+
+ if (params_external (ct, 1) == NOTOK)
+ done (1);
+
+ return OK;
}
- fseek (fp = ct->c_fp, ct->c_begin, SEEK_SET);
+ /* Handle [file] argument */
+ if (ci->ci_magic) {
+ /* check if specifies command to execute */
+ if (*ci->ci_magic == '|' || *ci->ci_magic == '!') {
+ for (cp = ci->ci_magic + 1; isspace (*cp); cp++)
+ continue;
+ if (!*cp)
+ adios (NULL, "empty pipe command for #%s directive", ci->ci_type);
+ cp = add (cp, NULL);
+ free (ci->ci_magic);
+ ci->ci_magic = cp;
+ } else {
+ /* record filename of decoded contents */
+ ce->ce_file = ci->ci_magic;
+ if (access (ce->ce_file, R_OK) == NOTOK)
+ adios ("reading", "unable to access %s for", ce->ce_file);
+ if (listsw && stat (ce->ce_file, &st) != NOTOK)
+ ct->c_end = (long) st.st_size;
+ ci->ci_magic = NULL;
+ }
+ return OK;
+ }
- if (!(p = get_content (fp, ct->c_file, 0))) {
- fclose (ct->c_fp);
- ct->c_fp = NULL;
- return NOTOK;
+ /*
+ ** No [file] argument, so check profile for
+ ** method to compose content.
+ */
+ snprintf (buffer, sizeof(buffer), "%s-compose-%s/%s",
+ invo_name, ci->ci_type, ci->ci_subtype);
+ if ((cp = context_find (buffer)) == NULL || *cp == '\0') {
+ snprintf (buffer, sizeof(buffer), "%s-compose-%s",
+ invo_name, ci->ci_type);
+ if ((cp = context_find (buffer)) == NULL || *cp == '\0') {
+ content_error (NULL, ct, "don't know how to compose content");
+ done (1);
+ }
}
+ ci->ci_magic = add (cp, NULL);
+ return OK;
+ }
- e->eb_parent = ct;
- e->eb_content = p;
- p->c_ctexbody = e;
- if ((exresult = params_external (ct, 0)) != NOTOK
- && p->c_ceopenfnx == openMail) {
- int cc, size;
- char *bp;
-
- if ((size = ct->c_end - p->c_begin) <= 0) {
- if (!e->eb_subject)
- content_error (NULL, ct,
- "empty body for access-type=mail-server");
- goto no_body;
- }
-
- e->eb_body = bp = mh_xmalloc ((unsigned) size);
- fseek (p->c_fp, p->c_begin, SEEK_SET);
- while (size > 0)
- switch (cc = fread (bp, sizeof(*bp), size, p->c_fp)) {
- case NOTOK:
- adios ("failed", "fread");
-
- case OK:
- adios (NULL, "unexpected EOF from fread");
-
- default:
- bp += cc, size -= cc;
- break;
+ if (extrnal)
+ adios (NULL, "external definition not allowed for \"#%s\"",
+ ci->ci_type);
+
+ /*
+ ** Message directive
+ ** #forw [+folder] [msgs]
+ */
+ if (!mh_strcasecmp (ci->ci_type, "forw")) {
+ int msgnum;
+ char *folder, *arguments[MAXARGS];
+ struct msgs *mp;
+
+ if (ci->ci_magic) {
+ ap = brkstring (ci->ci_magic, " ", "\n");
+ copyip (ap, arguments, MAXARGS);
+ } else {
+ arguments[0] = "cur";
+ arguments[1] = NULL;
+ }
+ folder = NULL;
+
+ /* search the arguments for a folder name */
+ for (ap = arguments; *ap; ap++) {
+ cp = *ap;
+ if (*cp == '+' || *cp == '@') {
+ if (folder)
+ adios (NULL, "only one folder per #forw directive");
+ else
+ folder = pluspath (cp);
}
- *bp = 0;
}
-no_body:
- p->c_fp = NULL;
- p->c_end = p->c_begin;
- fclose (ct->c_fp);
- ct->c_fp = NULL;
+ /* else, use the current folder */
+ if (!folder)
+ folder = add (getfolder (1), NULL);
+
+ if (!(mp = folder_read (folder)))
+ adios (NULL, "unable to read folder %s", folder);
+ for (ap = arguments; *ap; ap++) {
+ cp = *ap;
+ if (*cp != '+' && *cp != '@')
+ if (!m_convert (mp, cp))
+ done (1);
+ }
+ free (folder);
+ free_ctinfo (ct);
+
+ /*
+ ** If there is more than one message to include, make this
+ ** a content of type "multipart/digest" and insert each message
+ ** as a subpart. If there is only one message, then make this
+ ** a content of type "message/rfc822".
+ */
+ if (mp->numsel > 1) {
+ /* we are forwarding multiple messages */
+ if (get_ctinfo ("multipart/digest", ct, 0) == NOTOK)
+ done (1);
+ ct->c_type = CT_MULTIPART;
+ ct->c_subtype = MULTI_DIGEST;
+
+ if ((m = (struct multipart *) calloc (1, sizeof(*m))) == NULL)
+ adios (NULL, "out of memory");
+ ct->c_ctparams = (void *) m;
+ pp = &m->mp_parts;
+
+ for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
+ if (is_selected(mp, msgnum)) {
+ struct part *part;
+ CT p;
+ CE pe;
+
+ if ((p = (CT) calloc (1, sizeof(*p))) == NULL)
+ adios (NULL, "out of memory");
+ init_decoded_content (p);
+ pe = p->c_cefile;
+ if (get_ctinfo ("message/rfc822", p, 0) == NOTOK)
+ done (1);
+ p->c_type = CT_MESSAGE;
+ p->c_subtype = MESSAGE_RFC822;
+
+ snprintf (buffer, sizeof(buffer), "%s/%d", mp->foldpath, msgnum);
+ pe->ce_file = add (buffer, NULL);
+ if (listsw && stat (pe->ce_file, &st) != NOTOK)
+ p->c_end = (long) st.st_size;
+
+ if ((part = (struct part *) calloc (1, sizeof(*part))) == NULL)
+ adios (NULL, "out of memory");
+ *pp = part;
+ pp = &part->mp_next;
+ part->mp_part = p;
+ }
+ }
+ } else {
+ /* we are forwarding one message */
+ if (get_ctinfo ("message/rfc822", ct, 0) == NOTOK)
+ done (1);
+ ct->c_type = CT_MESSAGE;
+ ct->c_subtype = MESSAGE_RFC822;
+
+ msgnum = mp->lowsel;
+ snprintf (buffer, sizeof(buffer), "%s/%d", mp->foldpath, msgnum);
+ ce->ce_file = add (buffer, NULL);
+ if (listsw && stat (ce->ce_file, &st) != NOTOK)
+ ct->c_end = (long) st.st_size;
+ }
- if (exresult == NOTOK)
- return NOTOK;
- if (e->eb_flags == NOTOK)
- return OK;
+ folder_free (mp); /* free folder/message structure */
+ return OK;
+ }
- switch (p->c_type) {
- case CT_MULTIPART:
- break;
+ /*
+ ** #end
+ */
+ if (!mh_strcasecmp (ci->ci_type, "end")) {
+ free_content (ct);
+ *ctp = NULL;
+ return DONE;
+ }
- case CT_MESSAGE:
- if (p->c_subtype != MESSAGE_RFC822)
- break;
- /* else fall... */
- default:
- e->eb_partno = ct->c_partno;
- if (p->c_ctinitfnx)
- (*p->c_ctinitfnx) (p);
- break;
+ /*
+ ** #begin [ alternative | parallel ]
+ */
+ if (!mh_strcasecmp (ci->ci_type, "begin")) {
+ if (!ci->ci_magic) {
+ vrsn = MULTI_MIXED;
+ cp = SubMultiPart[vrsn - 1].kv_key;
+ } else if (!mh_strcasecmp (ci->ci_magic, "alternative")) {
+ vrsn = MULTI_ALTERNATE;
+ cp = SubMultiPart[vrsn - 1].kv_key;
+ } else if (!mh_strcasecmp (ci->ci_magic, "parallel")) {
+ vrsn = MULTI_PARALLEL;
+ cp = SubMultiPart[vrsn - 1].kv_key;
+ } else if (uprf (ci->ci_magic, "digest")) {
+ goto use_forw;
+ } else {
+ vrsn = MULTI_UNKNOWN;
+ cp = ci->ci_magic;
}
- }
- break;
- default:
- break;
- }
+ free_ctinfo (ct);
+ snprintf (buffer, sizeof(buffer), "multipart/%s", cp);
+ if (get_ctinfo (buffer, ct, 0) == NOTOK)
+ done (1);
+ ct->c_type = CT_MULTIPART;
+ ct->c_subtype = vrsn;
- return OK;
-}
+ if ((m = (struct multipart *) calloc (1, sizeof(*m))) == NULL)
+ adios (NULL, "out of memory");
+ ct->c_ctparams = (void *) m;
+ pp = &m->mp_parts;
+ while (fgetstr (buffer, sizeof(buffer) - 1, in)) {
+ struct part *part;
+ CT p;
-static int
-params_external (CT ct, int composing)
-{
- char **ap, **ep;
- struct exbody *e = (struct exbody *) ct->c_ctparams;
- CI ci = &ct->c_ctinfo;
-
- for (ap = ci->ci_attrs, ep = ci->ci_values; *ap; ap++, ep++) {
- if (!strcasecmp (*ap, "access-type")) {
- struct str2init *s2i;
- CT p = e->eb_content;
-
- for (s2i = str2methods; s2i->si_key; s2i++)
- if (!strcasecmp (*ep, s2i->si_key))
- break;
-
- if (!s2i->si_key) {
- e->eb_access = *ep;
- e->eb_flags = NOTOK;
- p->c_encoding = CE_EXTERNAL;
- continue;
- }
- e->eb_access = s2i->si_key;
- e->eb_flags = s2i->si_val;
- p->c_encoding = CE_EXTERNAL;
-
- /* Call the Init function for this external type */
- if ((*s2i->si_init)(p) == NOTOK)
- return NOTOK;
- continue;
- }
- if (!strcasecmp (*ap, "name")) {
- e->eb_name = *ep;
- continue;
- }
- if (!strcasecmp (*ap, "permission")) {
- e->eb_permission = *ep;
- continue;
- }
- if (!strcasecmp (*ap, "site")) {
- e->eb_site = *ep;
- continue;
- }
- if (!strcasecmp (*ap, "directory")) {
- e->eb_dir = *ep;
- continue;
- }
- if (!strcasecmp (*ap, "mode")) {
- e->eb_mode = *ep;
- continue;
- }
- if (!strcasecmp (*ap, "size")) {
- sscanf (*ep, "%lu", &e->eb_size);
- continue;
- }
- if (!strcasecmp (*ap, "server")) {
- e->eb_server = *ep;
- continue;
- }
- if (!strcasecmp (*ap, "subject")) {
- e->eb_subject = *ep;
- continue;
- }
- if (composing && !strcasecmp (*ap, "body")) {
- e->eb_body = getcpy (*ep);
- continue;
+ if (user_content (in, file, buffer, &p) == DONE) {
+ if (!m->mp_parts)
+ adios (NULL, "empty \"#begin ... #end\" sequence");
+ return OK;
+ }
+ if (!p)
+ continue;
+
+ if ((part = (struct part *) calloc (1, sizeof(*part))) == NULL)
+ adios (NULL, "out of memory");
+ *pp = part;
+ pp = &part->mp_next;
+ part->mp_part = p;
+ }
+ admonish (NULL, "premature end-of-file, missing #end");
+ return OK;
}
- }
-
- if (!e->eb_access) {
- advise (NULL,
- "invalid parameters for \"%s/%s\" type in message %s's %s field",
- ci->ci_type, ci->ci_subtype, ct->c_file, TYPE_FIELD);
- return NOTOK;
- }
-
- return OK;
-}
-
-
-/*
- * APPLICATION
- */
-
-static int
-InitApplication (CT ct)
-{
- struct k2v *kv;
- CI ci = &ct->c_ctinfo;
-
- /* match subtype */
- for (kv = SubApplication; kv->kv_key; kv++)
- if (!strcasecmp (ci->ci_subtype, kv->kv_key))
- break;
- ct->c_subtype = kv->kv_value;
-
- return OK;
-}
-
-
-/*
- * Set up structures for placing unencoded
- * content when building parts.
- */
-
-static int
-init_decoded_content (CT ct)
-{
- CE ce;
-
- if ((ce = (CE) calloc (1, sizeof(*ce))) == NULL)
- adios (NULL, "out of memory");
- ct->c_cefile = ce;
- ct->c_ceopenfnx = open7Bit; /* since unencoded */
- ct->c_ceclosefnx = close_encoding;
- ct->c_cesizefnx = NULL; /* since unencoded */
-
- return OK;
-}
-
-
-/*
- * TRANSFER ENCODINGS
- */
-
-static int
-init_encoding (CT ct, OpenCEFunc openfnx)
-{
- CE ce;
-
- if ((ce = (CE) calloc (1, sizeof(*ce))) == NULL)
- adios (NULL, "out of memory");
-
- ct->c_cefile = ce;
- ct->c_ceopenfnx = openfnx;
- ct->c_ceclosefnx = close_encoding;
- ct->c_cesizefnx = size_encoding;
-
- return OK;
+ /*
+ ** Unknown directive
+ */
+ adios (NULL, "unknown directive \"#%s\"", ci->ci_type);
+ return NOTOK; /* NOT REACHED */
}
static void
-close_encoding (CT ct)
-{
- CE ce;
-
- if (!(ce = ct->c_cefile))
- return;
-
- if (ce->ce_fp) {
- fclose (ce->ce_fp);
- ce->ce_fp = NULL;
- }
-}
-
-
-static unsigned long
-size_encoding (CT ct)
+set_id (CT ct, int top)
{
- int fd;
- unsigned long size;
- char *file;
- CE ce;
- struct stat st;
-
- if (!(ce = ct->c_cefile))
- return (ct->c_end - ct->c_begin);
-
- if (ce->ce_fp && fstat (fileno (ce->ce_fp), &st) != NOTOK)
- return (long) st.st_size;
-
- if (ce->ce_file) {
- if (stat (ce->ce_file, &st) != NOTOK)
- return (long) st.st_size;
- else
- return 0L;
- }
-
- if (ct->c_encoding == CE_EXTERNAL)
- return (ct->c_end - ct->c_begin);
-
- file = NULL;
- if ((fd = (*ct->c_ceopenfnx) (ct, &file)) == NOTOK)
- return (ct->c_end - ct->c_begin);
-
- if (fstat (fd, &st) != NOTOK)
- size = (long) st.st_size;
- else
- size = 0L;
-
- (*ct->c_ceclosefnx) (ct);
- return size;
+ char msgid[BUFSIZ];
+ static int partno;
+ static time_t clock = 0;
+ static char *msgfmt;
+
+ if (clock == 0) {
+ time (&clock);
+ snprintf (msgid, sizeof(msgid), "<%d.%ld.%%d@%s>\n",
+ (int) getpid(), (long) clock, LocalName());
+ partno = 0;
+ msgfmt = getcpy(msgid);
+ }
+ snprintf (msgid, sizeof(msgid), msgfmt, top ? 0 : ++partno);
+ ct->c_id = getcpy (msgid);
}
-/*
- * BASE64
- */
-
-static unsigned char b642nib[0x80] = {
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0x3e, 0xff, 0xff, 0xff, 0x3f,
- 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b,
- 0x3c, 0x3d, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06,
- 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
- 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16,
- 0x17, 0x18, 0x19, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20,
- 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
- 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
- 0x31, 0x32, 0x33, 0xff, 0xff, 0xff, 0xff, 0xff
+static char ebcdicsafe[0x100] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01,
+ 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
-static int
-InitBase64 (CT ct)
-{
- return init_encoding (ct, openBase64);
-}
-
+/*
+** Fill out, or expand the various contents in the composition
+** draft. Read-in any necessary files. Parse and execute any
+** commands specified by profile composition strings.
+*/
static int
-openBase64 (CT ct, char **file)
+compose_content (CT ct)
{
- int bitno, cc, digested;
- int fd, len, skip;
- unsigned long bits;
- unsigned char value, *b, *b1, *b2, *b3;
- char *cp, *ep, buffer[BUFSIZ];
- CE ce;
- MD5_CTX mdContext;
-
- b = (unsigned char *) &bits;
- b1 = &b[endian > 0 ? 1 : 2];
- b2 = &b[endian > 0 ? 2 : 1];
- b3 = &b[endian > 0 ? 3 : 0];
-
- ce = ct->c_cefile;
- if (ce->ce_fp) {
- fseek (ce->ce_fp, 0L, SEEK_SET);
- goto ready_to_go;
- }
-
- if (ce->ce_file) {
- if ((ce->ce_fp = fopen (ce->ce_file, "r")) == NULL) {
- content_error (ce->ce_file, ct, "unable to fopen for reading");
- return NOTOK;
- }
- goto ready_to_go;
- }
-
- if (*file == NULL) {
- ce->ce_file = add (m_scratch ("", tmp), NULL);
- ce->ce_unlink = 1;
- } else {
- ce->ce_file = add (*file, NULL);
- ce->ce_unlink = 0;
- }
-
- if ((ce->ce_fp = fopen (ce->ce_file, "w+")) == NULL) {
- content_error (ce->ce_file, ct, "unable to fopen for reading/writing");
- return NOTOK;
- }
-
- if ((len = ct->c_end - ct->c_begin) < 0)
- adios (NULL, "internal error(1)");
-
- if (!ct->c_fp && (ct->c_fp = fopen (ct->c_file, "r")) == NULL) {
- content_error (ct->c_file, ct, "unable to open for reading");
- return NOTOK;
- }
-
- if ((digested = ct->c_digested))
- MD5Init (&mdContext);
-
- bitno = 18;
- bits = 0L;
- skip = 0;
+ CE ce = ct->c_cefile;
- lseek (fd = fileno (ct->c_fp), (off_t) ct->c_begin, SEEK_SET);
- while (len > 0) {
- switch (cc = read (fd, buffer, sizeof(buffer) - 1)) {
- case NOTOK:
- content_error (ct->c_file, ct, "error reading from");
- goto clean_up;
+ switch (ct->c_type) {
+ case CT_MULTIPART:
+ {
+ int partnum;
+ char *pp;
+ char partnam[BUFSIZ];
+ struct multipart *m = (struct multipart *) ct->c_ctparams;
+ struct part *part;
+
+ if (ct->c_partno) {
+ snprintf (partnam, sizeof(partnam), "%s.", ct->c_partno);
+ pp = partnam + strlen (partnam);
+ } else {
+ pp = partnam;
+ }
- case OK:
- content_error (NULL, ct, "premature eof");
- goto clean_up;
+ /* first, we call compose_content on all the subparts */
+ for (part = m->mp_parts, partnum = 1; part;
+ part = part->mp_next, partnum++) {
+ CT p = part->mp_part;
- default:
- if (cc > len)
- cc = len;
- len -= cc;
+ sprintf (pp, "%d", partnum);
+ p->c_partno = add (partnam, NULL);
+ if (compose_content (p) == NOTOK)
+ return NOTOK;
+ }
- for (ep = (cp = buffer) + cc; cp < ep; cp++) {
- switch (*cp) {
- default:
- if (isspace (*cp))
- break;
- if (skip || (*cp & 0x80)
- || (value = b642nib[*cp & 0x7f]) > 0x3f) {
- if (debugsw) {
- fprintf (stderr, "*cp=0x%x pos=%ld skip=%d\n",
- *cp,
- (long) (lseek (fd, (off_t) 0, SEEK_CUR) - (ep - cp)),
- skip);
- }
- content_error (NULL, ct,
- "invalid BASE64 encoding -- continuing");
- continue;
- }
-
- bits |= value << bitno;
-test_end:
- if ((bitno -= 6) < 0) {
- putc ((char) *b1, ce->ce_fp);
- if (digested)
- MD5Update (&mdContext, b1, 1);
- if (skip < 2) {
- putc ((char) *b2, ce->ce_fp);
- if (digested)
- MD5Update (&mdContext, b2, 1);
- if (skip < 1) {
- putc ((char) *b3, ce->ce_fp);
- if (digested)
- MD5Update (&mdContext, b3, 1);
- }
+ /*
+ ** If the -rfc934mode switch is given, then check all
+ ** the subparts of a multipart/digest. If they are all
+ ** message/rfc822, then mark this content and all
+ ** subparts with the rfc934 compatibility mode flag.
+ */
+ if (rfc934sw && ct->c_subtype == MULTI_DIGEST) {
+ int is934 = 1;
+
+ for (part = m->mp_parts; part; part = part->mp_next) {
+ CT p = part->mp_part;
+
+ if (p->c_subtype != MESSAGE_RFC822) {
+ is934 = 0;
+ break;
+ }
}
+ ct->c_rfc934 = is934;
+ for (part = m->mp_parts; part; part = part->mp_next) {
+ CT p = part->mp_part;
- if (ferror (ce->ce_fp)) {
- content_error (ce->ce_file, ct,
- "error writing to");
- goto clean_up;
+ if ((p->c_rfc934 = is934))
+ p->c_end++;
}
- bitno = 18, bits = 0L, skip = 0;
- }
- break;
-
- case '=':
- if (++skip > 3)
- goto self_delimiting;
- goto test_end;
}
- }
- }
- }
-
- if (bitno != 18) {
- if (debugsw)
- fprintf (stderr, "premature ending (bitno %d)\n", bitno);
-
- content_error (NULL, ct, "invalid BASE64 encoding");
- goto clean_up;
- }
-self_delimiting:
- fseek (ct->c_fp, 0L, SEEK_SET);
+ if (listsw) {
+ ct->c_end = (partnum = strlen (prefix) + 2) + 2;
+ if (ct->c_rfc934)
+ ct->c_end += 1;
- if (fflush (ce->ce_fp)) {
- content_error (ce->ce_file, ct, "error writing to");
- goto clean_up;
- }
-
- if (digested) {
- unsigned char digest[16];
-
- MD5Final (digest, &mdContext);
- if (memcmp((char *) digest, (char *) ct->c_digest,
- sizeof(digest) / sizeof(digest[0])))
- content_error (NULL, ct,
- "content integrity suspect (digest mismatch) -- continuing");
- else
- if (debugsw)
- fprintf (stderr, "content integrity confirmed\n");
- }
-
- fseek (ce->ce_fp, 0L, SEEK_SET);
-
-ready_to_go:
- *file = ce->ce_file;
- return fileno (ce->ce_fp);
-
-clean_up:
- free_encoding (ct, 0);
- return NOTOK;
-}
-
-
-/*
- * QUOTED PRINTABLE
- */
-
-static char hex2nib[0x80] = {
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
- 0x08, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
-
-
-static int
-InitQuoted (CT ct)
-{
- return init_encoding (ct, openQuoted);
-}
-
-
-static int
-openQuoted (CT ct, char **file)
-{
- int cc, digested, len, quoted;
- char *cp, *ep;
- char buffer[BUFSIZ];
- unsigned char mask;
- CE ce;
- MD5_CTX mdContext;
-
- ce = ct->c_cefile;
- if (ce->ce_fp) {
- fseek (ce->ce_fp, 0L, SEEK_SET);
- goto ready_to_go;
- }
-
- if (ce->ce_file) {
- if ((ce->ce_fp = fopen (ce->ce_file, "r")) == NULL) {
- content_error (ce->ce_file, ct, "unable to fopen for reading");
- return NOTOK;
+ for (part = m->mp_parts; part; part = part->mp_next)
+ ct->c_end += part->mp_part->c_end + partnum;
+ }
}
- goto ready_to_go;
- }
-
- if (*file == NULL) {
- ce->ce_file = add (m_scratch ("", tmp), NULL);
- ce->ce_unlink = 1;
- } else {
- ce->ce_file = add (*file, NULL);
- ce->ce_unlink = 0;
- }
-
- if ((ce->ce_fp = fopen (ce->ce_file, "w+")) == NULL) {
- content_error (ce->ce_file, ct, "unable to fopen for reading/writing");
- return NOTOK;
- }
-
- if ((len = ct->c_end - ct->c_begin) < 0)
- adios (NULL, "internal error(2)");
-
- if (!ct->c_fp && (ct->c_fp = fopen (ct->c_file, "r")) == NULL) {
- content_error (ct->c_file, ct, "unable to open for reading");
- return NOTOK;
- }
-
- if ((digested = ct->c_digested))
- MD5Init (&mdContext);
+ break;
- quoted = 0;
-#ifdef lint
- mask = 0;
-#endif
+ case CT_MESSAGE:
+ /* Nothing to do for type message */
+ break;
- fseek (ct->c_fp, ct->c_begin, SEEK_SET);
- while (len > 0) {
- char *dp;
+ /*
+ ** Discrete types (text/application/audio/image/video)
+ */
+ default:
+ if (!ce->ce_file) {
+ pid_t child_id;
+ int i, xstdout, len, buflen;
+ char *bp, **ap, *cp;
+ char *vec[4], buffer[BUFSIZ];
+ FILE *out;
+ CI ci = &ct->c_ctinfo;
+ char *tfile = NULL;
+
+ if (!(cp = ci->ci_magic))
+ adios (NULL, "internal error(5)");
+
+ tfile = m_mktemp2(NULL, invo_name, NULL, NULL);
+ if (tfile == NULL) {
+ adios("mhbuildsbr", "unable to create temporary file");
+ }
+ ce->ce_file = add (tfile, NULL);
+ ce->ce_unlink = 1;
- if (fgets (buffer, sizeof(buffer) - 1, ct->c_fp) == NULL) {
- content_error (NULL, ct, "premature eof");
- goto clean_up;
- }
+ xstdout = 0;
- if ((cc = strlen (buffer)) > len)
- cc = len;
- len -= cc;
+ /* Get buffer ready to go */
+ bp = buffer;
+ bp[0] = '\0';
+ buflen = sizeof(buffer);
- for (ep = (cp = buffer) + cc - 1; cp <= ep; ep--)
- if (!isspace (*ep))
- break;
- *++ep = '\n', ep++;
-
- for (; cp < ep; cp++) {
- if (quoted) {
- if (quoted > 1) {
- if (!isxdigit (*cp)) {
-invalid_hex:
- dp = "expecting hexidecimal-digit";
- goto invalid_encoding;
- }
- mask <<= 4;
- mask |= hex2nib[*cp & 0x7f];
- putc (mask, ce->ce_fp);
- if (digested)
- MD5Update (&mdContext, &mask, 1);
- } else {
- switch (*cp) {
- case ':':
- putc (*cp, ce->ce_fp);
- if (digested)
- MD5Update (&mdContext, (unsigned char *) ":", 1);
- break;
+ /*
+ ** Parse composition string into buffer
+ */
+ for ( ; *cp; cp++) {
+ if (*cp == '%') {
+ switch (*++cp) {
+ case 'a':
+ {
+ /*
+ ** insert parameters from
+ ** directive
+ */
+ char **ep;
+ char *s = "";
+
+ for (ap = ci->ci_attrs, ep = ci->ci_values; *ap; ap++, ep++) {
+ snprintf (bp, buflen, "%s%s=\"%s\"", s, *ap, *ep);
+ len = strlen (bp);
+ bp += len;
+ buflen -= len;
+ s = " ";
+ }
+ }
+ break;
+
+ case 'F':
+ /* %f, and stdout is not-redirected */
+ xstdout = 1;
+ /* and fall... */
+
+ case 'f':
+ /*
+ ** insert temporary filename
+ ** where content should be
+ ** written
+ */
+ snprintf (bp, buflen, "%s", ce->ce_file);
+ break;
+
+ case 's':
+ /* insert content subtype */
+ strncpy (bp, ci->ci_subtype, buflen);
+ break;
+
+ case '%':
+ /* insert character % */
+ goto raw;
+
+ default:
+ *bp++ = *--cp;
+ *bp = '\0';
+ buflen--;
+ continue;
+ }
+ len = strlen (bp);
+ bp += len;
+ buflen -= len;
+ } else {
+raw:
+ *bp++ = *cp;
+ *bp = '\0';
+ buflen--;
+ }
+ }
- default:
- if (!isxdigit (*cp))
- goto invalid_hex;
- mask = hex2nib[*cp & 0x7f];
- quoted = 2;
- continue;
- }
+ if (verbosw)
+ printf ("composing content %s/%s from command\n\t%s\n",
+ ci->ci_type, ci->ci_subtype, buffer);
+
+ fflush (stdout); /* not sure if need for -noverbose */
+
+ vec[0] = "/bin/sh";
+ vec[1] = "-c";
+ vec[2] = buffer;
+ vec[3] = NULL;
+
+ if ((out = fopen (ce->ce_file, "w")) == NULL)
+ adios (ce->ce_file, "unable to open for writing");
+
+ for (i = 0; (child_id = vfork()) == NOTOK && i > 5; i++)
+ sleep (5);
+ switch (child_id) {
+ case NOTOK:
+ adios ("fork", "unable to fork");
+ /* NOTREACHED */
+
+ case OK:
+ if (!xstdout)
+ dup2 (fileno (out), 1);
+ close (fileno (out));
+ execvp ("/bin/sh", vec);
+ fprintf (stderr, "unable to exec ");
+ perror ("/bin/sh");
+ _exit (-1);
+ /* NOTREACHED */
+
+ default:
+ fclose (out);
+ if (pidXwait(child_id, NULL))
+ done (1);
+ break;
+ }
}
- if (ferror (ce->ce_fp)) {
- content_error (ce->ce_file, ct, "error writing to");
- goto clean_up;
- }
- quoted = 0;
- continue;
- }
-
- switch (*cp) {
- default:
- if (*cp < '!' || *cp > '~') {
- int i;
- dp = "expecting character in range [!..~]";
-
-invalid_encoding:
- i = strlen (invo_name) + 2;
- content_error (NULL, ct,
- "invalid QUOTED-PRINTABLE encoding -- %s,\n%*.*sbut got char 0x%x",
- dp, i, i, "", *cp);
- goto clean_up;
- }
- /* and fall...*/
- case ' ':
- case '\t':
- case '\n':
- putc (*cp, ce->ce_fp);
- if (digested) {
- if (*cp == '\n')
- MD5Update (&mdContext, (unsigned char *) "\r\n",2);
- else
- MD5Update (&mdContext, (unsigned char *) cp, 1);
- }
- if (ferror (ce->ce_fp)) {
- content_error (ce->ce_file, ct, "error writing to");
- goto clean_up;
- }
- break;
+ /* Check size of file */
+ if (listsw && ct->c_end == 0L) {
+ struct stat st;
- case '=':
- if (*++cp != '\n') {
- quoted = 1;
- cp--;
+ if (stat (ce->ce_file, &st) != NOTOK)
+ ct->c_end = (long) st.st_size;
}
break;
- }
}
- }
- if (quoted) {
- content_error (NULL, ct,
- "invalid QUOTED-PRINTABLE encoding -- end-of-content while still quoting");
- goto clean_up;
- }
-
- fseek (ct->c_fp, 0L, SEEK_SET);
-
- if (fflush (ce->ce_fp)) {
- content_error (ce->ce_file, ct, "error writing to");
- goto clean_up;
- }
- if (digested) {
- unsigned char digest[16];
-
- MD5Final (digest, &mdContext);
- if (memcmp((char *) digest, (char *) ct->c_digest,
- sizeof(digest) / sizeof(digest[0])))
- content_error (NULL, ct,
- "content integrity suspect (digest mismatch) -- continuing");
- else
- if (debugsw)
- fprintf (stderr, "content integrity confirmed\n");
- }
-
- fseek (ce->ce_fp, 0L, SEEK_SET);
-
-ready_to_go:
- *file = ce->ce_file;
- return fileno (ce->ce_fp);
-
-clean_up:
- free_encoding (ct, 0);
- return NOTOK;
+ return OK;
}
/*
- * 7BIT
- */
+** Scan the content.
+**
+** 1) choose a transfer encoding.
+** 2) check for clashes with multipart boundary string.
+** 3) for text content, figure out which character set is being used.
+**
+** If there is a clash with one of the contents and the multipart boundary,
+** this function will exit with NOTOK. This will cause the scanning process
+** to be repeated with a different multipart boundary. It is possible
+** (although highly unlikely) that this scan will be repeated multiple times.
+*/
static int
-Init7Bit (CT ct)
-{
- if (init_encoding (ct, open7Bit) == NOTOK)
- return NOTOK;
-
- ct->c_cesizefnx = NULL; /* no need to decode for real size */
- return OK;
-}
-
-
-static int
-open7Bit (CT ct, char **file)
+scan_content (CT ct)
{
- int cc, fd, len;
- char buffer[BUFSIZ];
- CE ce;
-
- ce = ct->c_cefile;
- if (ce->ce_fp) {
- fseek (ce->ce_fp, 0L, SEEK_SET);
- goto ready_to_go;
- }
-
- if (ce->ce_file) {
- if ((ce->ce_fp = fopen (ce->ce_file, "r")) == NULL) {
- content_error (ce->ce_file, ct, "unable to fopen for reading");
- return NOTOK;
- }
- goto ready_to_go;
- }
-
- if (*file == NULL) {
- ce->ce_file = add (m_scratch ("", tmp), NULL);
- ce->ce_unlink = 1;
- } else {
- ce->ce_file = add (*file, NULL);
- ce->ce_unlink = 0;
- }
-
- if ((ce->ce_fp = fopen (ce->ce_file, "w+")) == NULL) {
- content_error (ce->ce_file, ct, "unable to fopen for reading/writing");
- return NOTOK;
- }
-
- if (ct->c_type == CT_MULTIPART) {
- char **ap, **ep;
- CI ci = &ct->c_ctinfo;
-
- len = 0;
- fprintf (ce->ce_fp, "%s: %s/%s", TYPE_FIELD, ci->ci_type, ci->ci_subtype);
- len += strlen (TYPE_FIELD) + 2 + strlen (ci->ci_type)
- + 1 + strlen (ci->ci_subtype);
- for (ap = ci->ci_attrs, ep = ci->ci_values; *ap; ap++, ep++) {
- putc (';', ce->ce_fp);
- len++;
-
- snprintf (buffer, sizeof(buffer), "%s=\"%s\"", *ap, *ep);
-
- if (len + 1 + (cc = strlen (buffer)) >= CPERLIN) {
- fputs ("\n\t", ce->ce_fp);
- len = 8;
- } else {
- putc (' ', ce->ce_fp);
- len++;
- }
- fprintf (ce->ce_fp, "%s", buffer);
- len += cc;
- }
+ int len;
+ int check8bit = 0, contains8bit = 0; /* check if contains 8bit data */
+ int checklinelen = 0, linelen = 0; /* check for long lines */
+ int checkboundary = 0, boundaryclash = 0; /* check if clashes with multipart boundary */
+ int checklinespace = 0, linespace = 0; /* check if any line ends with space */
+ int checkebcdic = 0, ebcdicunsafe = 0; /* check if contains ebcdic unsafe characters */
+ unsigned char *cp = NULL, buffer[BUFSIZ];
+ struct text *t = NULL;
+ FILE *in = NULL;
+ CE ce = ct->c_cefile;
- if (ci->ci_comment) {
- if (len + 1 + (cc = 2 + strlen (ci->ci_comment)) >= CPERLIN) {
- fputs ("\n\t", ce->ce_fp);
- len = 8;
- }
- else {
- putc (' ', ce->ce_fp);
- len++;
- }
- fprintf (ce->ce_fp, "(%s)", ci->ci_comment);
- len += cc;
- }
- fprintf (ce->ce_fp, "\n");
- if (ct->c_id)
- fprintf (ce->ce_fp, "%s:%s", ID_FIELD, ct->c_id);
- if (ct->c_descr)
- fprintf (ce->ce_fp, "%s:%s", DESCR_FIELD, ct->c_descr);
- fprintf (ce->ce_fp, "\n");
- }
-
- if ((len = ct->c_end - ct->c_begin) < 0)
- adios (NULL, "internal error(3)");
-
- if (!ct->c_fp && (ct->c_fp = fopen (ct->c_file, "r")) == NULL) {
- content_error (ct->c_file, ct, "unable to open for reading");
- return NOTOK;
- }
-
- lseek (fd = fileno (ct->c_fp), (off_t) ct->c_begin, SEEK_SET);
- while (len > 0)
- switch (cc = read (fd, buffer, sizeof(buffer) - 1)) {
- case NOTOK:
- content_error (ct->c_file, ct, "error reading from");
- goto clean_up;
-
- case OK:
- content_error (NULL, ct, "premature eof");
- goto clean_up;
-
- default:
- if (cc > len)
- cc = len;
- len -= cc;
-
- fwrite (buffer, sizeof(*buffer), cc, ce->ce_fp);
- if (ferror (ce->ce_fp)) {
- content_error (ce->ce_file, ct, "error writing to");
- goto clean_up;
- }
- }
-
- fseek (ct->c_fp, 0L, SEEK_SET);
-
- if (fflush (ce->ce_fp)) {
- content_error (ce->ce_file, ct, "error writing to");
- goto clean_up;
- }
-
- fseek (ce->ce_fp, 0L, SEEK_SET);
-
-ready_to_go:
- *file = ce->ce_file;
- return fileno (ce->ce_fp);
-
-clean_up:
- free_encoding (ct, 0);
- return NOTOK;
-}
+ /*
+ ** handle multipart by scanning all subparts
+ ** and then checking their encoding.
+ */
+ if (ct->c_type == CT_MULTIPART) {
+ struct multipart *m = (struct multipart *) ct->c_ctparams;
+ struct part *part;
+
+ /* initially mark the domain of enclosing multipart as 7bit */
+ ct->c_encoding = CE_7BIT;
+ for (part = m->mp_parts; part; part = part->mp_next) {
+ CT p = part->mp_part;
-/*
- * External
- */
-
-static int
-openExternal (CT ct, CT cb, CE ce, char **file, int *fd)
-{
- char cachefile[BUFSIZ];
+ if (scan_content (p) == NOTOK) /* choose encoding for subpart */
+ return NOTOK;
- if (ce->ce_fp) {
- fseek (ce->ce_fp, 0L, SEEK_SET);
- goto ready_already;
- }
+ /*
+ ** if necessary, enlarge encoding for enclosing
+ ** multipart
+ */
+ if (p->c_encoding == CE_BINARY)
+ ct->c_encoding = CE_BINARY;
+ if (p->c_encoding == CE_8BIT && ct->c_encoding != CE_BINARY)
+ ct->c_encoding = CE_8BIT;
+ }
- if (ce->ce_file) {
- if ((ce->ce_fp = fopen (ce->ce_file, "r")) == NULL) {
- content_error (ce->ce_file, ct, "unable to fopen for reading");
- return NOTOK;
- }
- goto ready_already;
- }
-
- if (find_cache (ct, rcachesw, (int *) 0, cb->c_id,
- cachefile, sizeof(cachefile)) != NOTOK) {
- if ((ce->ce_fp = fopen (cachefile, "r"))) {
- ce->ce_file = getcpy (cachefile);
- ce->ce_unlink = 0;
- goto ready_already;
- } else {
- admonish (cachefile, "unable to fopen for reading");
+ return OK;
}
- }
-
- return OK;
-
-ready_already:
- *file = ce->ce_file;
- *fd = fileno (ce->ce_fp);
- return DONE;
-}
-/*
- * File
- */
-
-static int
-InitFile (CT ct)
-{
- return init_encoding (ct, openFile);
-}
-
-
-static int
-openFile (CT ct, char **file)
-{
- int fd, cachetype;
- char cachefile[BUFSIZ];
- struct exbody *e = ct->c_ctexbody;
- CE ce = ct->c_cefile;
-
- switch (openExternal (e->eb_parent, e->eb_content, ce, file, &fd)) {
- case NOTOK:
- return NOTOK;
-
- case OK:
- break;
-
- case DONE:
- return fd;
- }
-
- if (!e->eb_name) {
- content_error (NULL, ct, "missing name parameter");
- return NOTOK;
- }
-
- ce->ce_file = getcpy (e->eb_name);
- ce->ce_unlink = 0;
-
- if ((ce->ce_fp = fopen (ce->ce_file, "r")) == NULL) {
- content_error (ce->ce_file, ct, "unable to fopen for reading");
- return NOTOK;
- }
-
- if ((!e->eb_permission || strcasecmp (e->eb_permission, "read-write"))
- && find_cache (NULL, wcachesw, &cachetype, e->eb_content->c_id,
- cachefile, sizeof(cachefile)) != NOTOK) {
- int mask;
- FILE *fp;
-
- mask = umask (cachetype ? ~m_gmprot () : 0222);
- if ((fp = fopen (cachefile, "w"))) {
- int cc;
- char buffer[BUFSIZ];
- FILE *gp = ce->ce_fp;
-
- fseek (gp, 0L, SEEK_SET);
-
- while ((cc = fread (buffer, sizeof(*buffer), sizeof(buffer), gp))
- > 0)
- fwrite (buffer, sizeof(*buffer), cc, fp);
- fflush (fp);
-
- if (ferror (gp)) {
- admonish (ce->ce_file, "error reading");
- unlink (cachefile);
- }
- else
- if (ferror (fp)) {
- admonish (cachefile, "error writing");
- unlink (cachefile);
+ /*
+ ** Decide what to check while scanning this content.
+ */
+ switch (ct->c_type) {
+ case CT_TEXT:
+ check8bit = 1;
+ checkboundary = 1;
+ if (ct->c_subtype == TEXT_PLAIN) {
+ checkebcdic = 0;
+ checklinelen = 0;
+ checklinespace = 0;
+ } else {
+ checkebcdic = ebcdicsw;
+ checklinelen = 1;
+ checklinespace = 1;
}
- fclose (fp);
- }
- umask (mask);
- }
-
- fseek (ce->ce_fp, 0L, SEEK_SET);
- *file = ce->ce_file;
- return fileno (ce->ce_fp);
-}
-
-/*
- * FTP
- */
-
-static int
-InitFTP (CT ct)
-{
- return init_encoding (ct, openFTP);
-}
+ break;
+ case CT_APPLICATION:
+ check8bit = 1;
+ checkebcdic = ebcdicsw;
+ checklinelen = 1;
+ checklinespace = 1;
+ checkboundary = 1;
+ break;
-static int
-openFTP (CT ct, char **file)
-{
- int cachetype, caching, fd;
- int len, buflen;
- char *bp, *ftp, *user, *pass;
- char buffer[BUFSIZ], cachefile[BUFSIZ];
- struct exbody *e;
- CE ce;
- static char *username = NULL;
- static char *password = NULL;
-
- e = ct->c_ctexbody;
- ce = ct->c_cefile;
-
- if ((ftp = context_find (nmhaccessftp)) && !*ftp)
- ftp = NULL;
-
-#ifndef BUILTIN_FTP
- if (!ftp)
- return NOTOK;
-#endif
+ case CT_MESSAGE:
+ check8bit = 0;
+ checkebcdic = 0;
+ checklinelen = 0;
+ checklinespace = 0;
+
+ /* don't check anything for message/external */
+ if (ct->c_subtype == MESSAGE_EXTERNAL)
+ checkboundary = 0;
+ else
+ checkboundary = 1;
+ break;
- switch (openExternal (e->eb_parent, e->eb_content, ce, file, &fd)) {
- case NOTOK:
- return NOTOK;
-
- case OK:
- break;
-
- case DONE:
- return fd;
- }
-
- if (!e->eb_name || !e->eb_site) {
- content_error (NULL, ct, "missing %s parameter",
- e->eb_name ? "site": "name");
- return NOTOK;
- }
-
- if (xpid) {
- if (xpid < 0)
- xpid = -xpid;
- pidcheck (pidwait (xpid, NOTOK));
- xpid = 0;
- }
-
- /* Get the buffer ready to go */
- bp = buffer;
- buflen = sizeof(buffer);
-
- /*
- * Construct the query message for user
- */
- snprintf (bp, buflen, "Retrieve %s", e->eb_name);
- len = strlen (bp);
- bp += len;
- buflen -= len;
-
- if (e->eb_partno) {
- snprintf (bp, buflen, " (content %s)", e->eb_partno);
- len = strlen (bp);
- bp += len;
- buflen -= len;
- }
-
- snprintf (bp, buflen, "\n using %sFTP from site %s",
- e->eb_flags ? "anonymous " : "", e->eb_site);
- len = strlen (bp);
- bp += len;
- buflen -= len;
-
- if (e->eb_size > 0) {
- snprintf (bp, buflen, " (%lu octets)", e->eb_size);
- len = strlen (bp);
- bp += len;
- buflen -= len;
- }
- snprintf (bp, buflen, "? ");
-
- /*
- * Now, check the answer
- */
- if (!getanswer (buffer))
- return NOTOK;
-
- if (e->eb_flags) {
- user = "anonymous";
- snprintf (buffer, sizeof(buffer), "%s@%s", getusername (), LocalName ());
- pass = buffer;
- } else {
- ruserpass (e->eb_site, &username, &password);
- user = username;
- pass = password;
- }
-
- ce->ce_unlink = (*file == NULL);
- caching = 0;
- cachefile[0] = '\0';
- if ((!e->eb_permission || strcasecmp (e->eb_permission, "read-write"))
- && find_cache (NULL, wcachesw, &cachetype, e->eb_content->c_id,
- cachefile, sizeof(cachefile)) != NOTOK) {
- if (*file == NULL) {
- ce->ce_unlink = 0;
- caching = 1;
- }
- }
-
- if (*file)
- ce->ce_file = add (*file, NULL);
- else if (caching)
- ce->ce_file = add (cachefile, NULL);
- else
- ce->ce_file = add (m_scratch ("", tmp), NULL);
-
- if ((ce->ce_fp = fopen (ce->ce_file, "w+")) == NULL) {
- content_error (ce->ce_file, ct, "unable to fopen for reading/writing");
- return NOTOK;
- }
-
-#ifdef BUILTIN_FTP
- if (ftp)
-#endif
- {
- int child_id, i, vecp;
- char *vec[9];
-
- vecp = 0;
- vec[vecp++] = r1bindex (ftp, '/');
- vec[vecp++] = e->eb_site;
- vec[vecp++] = user;
- vec[vecp++] = pass;
- vec[vecp++] = e->eb_dir;
- vec[vecp++] = e->eb_name;
- vec[vecp++] = ce->ce_file,
- vec[vecp++] = e->eb_mode && !strcasecmp (e->eb_mode, "ascii")
- ? "ascii" : "binary";
- vec[vecp] = NULL;
-
- fflush (stdout);
-
- for (i = 0; (child_id = vfork ()) == NOTOK && i < 5; i++)
- sleep (5);
- switch (child_id) {
- case NOTOK:
- adios ("fork", "unable to");
- /* NOTREACHED */
-
- case OK:
- close (fileno (ce->ce_fp));
- execvp (ftp, vec);
- fprintf (stderr, "unable to exec ");
- perror (ftp);
- _exit (-1);
- /* NOTREACHED */
-
- default:
- if (pidXwait (child_id, NULL)) {
-#ifdef BUILTIN_FTP
-losing_ftp:
-#endif
- username = password = NULL;
- ce->ce_unlink = 1;
- return NOTOK;
- }
+ case CT_AUDIO:
+ case CT_IMAGE:
+ case CT_VIDEO:
+ /*
+ ** Don't check anything for these types,
+ ** since we are forcing use of base64.
+ */
+ check8bit = 0;
+ checkebcdic = 0;
+ checklinelen = 0;
+ checklinespace = 0;
+ checkboundary = 0;
break;
}
- }
-#ifdef BUILTIN_FTP
- else
- if (ftp_get (e->eb_site, user, pass, e->eb_dir, e->eb_name,
- ce->ce_file,
- e->eb_mode && !strcasecmp (e->eb_mode, "ascii"), 0)
- == NOTOK)
- goto losing_ftp;
-#endif
-
- if (cachefile[0]) {
- if (caching)
- chmod (cachefile, cachetype ? m_gmprot () : 0444);
- else {
- int mask;
- FILE *fp;
- mask = umask (cachetype ? ~m_gmprot () : 0222);
- if ((fp = fopen (cachefile, "w"))) {
- int cc;
- FILE *gp = ce->ce_fp;
+ /*
+ ** Scan the unencoded content
+ */
+ if (check8bit || checklinelen || checklinespace || checkboundary) {
+ if ((in = fopen (ce->ce_file, "r")) == NULL)
+ adios (ce->ce_file, "unable to open for reading");
+ len = strlen (prefix);
+
+ while (fgets (buffer, sizeof(buffer) - 1, in)) {
+ /*
+ ** Check for 8bit data.
+ */
+ if (check8bit) {
+ for (cp = buffer; *cp; cp++) {
+ if (!isascii (*cp)) {
+ contains8bit = 1;
+ /* no need to keep checking */
+ check8bit = 0;
+ }
+ /*
+ ** Check if character is ebcdic-safe.
+ ** We only check this if also checking
+ ** for 8bit data.
+ */
+ if (checkebcdic && !ebcdicsafe[*cp & 0xff]) {
+ ebcdicunsafe = 1;
+ /* no need to keep checking */
+ checkebcdic = 0;
+ }
+ }
+ }
- fseek (gp, 0L, SEEK_SET);
+ /*
+ ** Check line length.
+ */
+ if (checklinelen && (strlen (buffer) > CPERLIN + 1)) {
+ linelen = 1;
+ checklinelen = 0; /* no need to keep checking */
+ }
- while ((cc= fread (buffer, sizeof(*buffer), sizeof(buffer), gp))
- > 0)
- fwrite (buffer, sizeof(*buffer), cc, fp);
- fflush (fp);
+ /*
+ ** Check if line ends with a space.
+ */
+ if (checklinespace &&
+ (cp = buffer + strlen (buffer) - 2) >
+ buffer && isspace (*cp)) {
+ linespace = 1;
+ /* no need to keep checking */
+ checklinespace = 0;
+ }
- if (ferror (gp)) {
- admonish (ce->ce_file, "error reading");
- unlink (cachefile);
+ /*
+ ** Check if content contains a line that clashes
+ ** with our standard boundary for multipart messages.
+ */
+ if (checkboundary && buffer[0] == '-' && buffer[1] == '-') {
+ for (cp = buffer + strlen (buffer) - 1; cp >= buffer; cp--)
+ if (!isspace (*cp))
+ break;
+ *++cp = '\0';
+ if (!strncmp(buffer + 2, prefix, len) && isdigit(buffer[2 + len])) {
+ boundaryclash = 1;
+ /* no need to keep checking */
+ checkboundary = 0;
+ }
+ }
}
- else
- if (ferror (fp)) {
- admonish (cachefile, "error writing");
- unlink (cachefile);
- }
- fclose (fp);
- }
- umask (mask);
+ fclose (in);
}
- }
-
- fseek (ce->ce_fp, 0L, SEEK_SET);
- *file = ce->ce_file;
- return fileno (ce->ce_fp);
-}
-
-
-/*
- * Mail
- */
-
-static int
-InitMail (CT ct)
-{
- return init_encoding (ct, openMail);
-}
+ /*
+ ** Decide which transfer encoding to use.
+ */
+ switch (ct->c_type) {
+ case CT_TEXT:
+ /*
+ ** If the text content didn't specify a character
+ ** set, we need to figure out which one was used.
+ */
+ t = (struct text *) ct->c_ctparams;
+ if (t->tx_charset == CHARSET_UNSPECIFIED) {
+ CI ci = &ct->c_ctinfo;
+ char **ap, **ep;
+
+ for (ap = ci->ci_attrs, ep = ci->ci_values; *ap; ap++, ep++)
+ continue;
+
+ if (contains8bit) {
+ t->tx_charset = CHARSET_UNKNOWN;
+ *ap = concat ("charset=", write_charset_8bit(), NULL);
+ } else {
+ t->tx_charset = CHARSET_USASCII;
+ *ap = add ("charset=us-ascii", NULL);
+ }
-static int
-openMail (CT ct, char **file)
-{
- int child_id, fd, i, vecp;
- int len, buflen;
- char *bp, buffer[BUFSIZ], *vec[7];
- struct exbody *e = ct->c_ctexbody;
- CE ce = ct->c_cefile;
-
- switch (openExternal (e->eb_parent, e->eb_content, ce, file, &fd)) {
- case NOTOK:
- return NOTOK;
-
- case OK:
- break;
-
- case DONE:
- return fd;
- }
-
- if (!e->eb_server) {
- content_error (NULL, ct, "missing server parameter");
- return NOTOK;
- }
-
- if (xpid) {
- if (xpid < 0)
- xpid = -xpid;
- pidcheck (pidwait (xpid, NOTOK));
- xpid = 0;
- }
-
- /* Get buffer ready to go */
- bp = buffer;
- buflen = sizeof(buffer);
-
- /* Now construct query message */
- snprintf (bp, buflen, "Retrieve content");
- len = strlen (bp);
- bp += len;
- buflen -= len;
-
- if (e->eb_partno) {
- snprintf (bp, buflen, " %s", e->eb_partno);
- len = strlen (bp);
- bp += len;
- buflen -= len;
- }
-
- snprintf (bp, buflen, " by asking %s\n\n%s\n? ",
- e->eb_server,
- e->eb_subject ? e->eb_subject : e->eb_body);
-
- /* Now, check answer */
- if (!getanswer (buffer))
- return NOTOK;
-
- vecp = 0;
- vec[vecp++] = r1bindex (mailproc, '/');
- vec[vecp++] = e->eb_server;
- vec[vecp++] = "-subject";
- vec[vecp++] = e->eb_subject ? e->eb_subject : "mail-server request";
- vec[vecp++] = "-body";
- vec[vecp++] = e->eb_body;
- vec[vecp] = NULL;
-
- for (i = 0; (child_id = vfork ()) == NOTOK && i < 5; i++)
- sleep (5);
- switch (child_id) {
- case NOTOK:
- advise ("fork", "unable to");
- return NOTOK;
-
- case OK:
- execvp (mailproc, vec);
- fprintf (stderr, "unable to exec ");
- perror (mailproc);
- _exit (-1);
- /* NOTREACHED */
-
- default:
- if (pidXwait (child_id, NULL) == OK)
- advise (NULL, "request sent");
- break;
- }
-
- if (*file == NULL) {
- ce->ce_file = add (m_scratch ("", tmp), NULL);
- ce->ce_unlink = 1;
- } else {
- ce->ce_file = add (*file, NULL);
- ce->ce_unlink = 0;
- }
-
- if ((ce->ce_fp = fopen (ce->ce_file, "w+")) == NULL) {
- content_error (ce->ce_file, ct, "unable to fopen for reading/writing");
- return NOTOK;
- }
-
- fseek (ce->ce_fp, 0L, SEEK_SET);
- *file = ce->ce_file;
- return fileno (ce->ce_fp);
-}
-
+ cp = strchr(*ap++, '=');
+ *ap = NULL;
+ *cp++ = '\0';
+ *ep = cp;
+ }
-static char *
-fgetstr (char *s, int n, FILE *stream)
-{
- char *cp, *ep;
+ if (contains8bit || ebcdicunsafe || linelen || linespace || checksw)
+ ct->c_encoding = CE_QUOTED;
+ else
+ ct->c_encoding = CE_7BIT;
+ break;
- for (ep = (cp = s) + n; cp < ep; ) {
- int i;
+ case CT_APPLICATION:
+ /* For application type, use base64, except when postscript */
+ if (contains8bit || ebcdicunsafe || linelen || linespace || checksw)
+ ct->c_encoding = (ct->c_subtype == APPLICATION_POSTSCRIPT)
+ ? CE_QUOTED : CE_BASE64;
+ else
+ ct->c_encoding = CE_7BIT;
+ break;
- if (!fgets (cp, n, stream))
- return (cp != s ? s : NULL);
- if (cp == s && *cp != '#')
- return s;
+ case CT_MESSAGE:
+ ct->c_encoding = CE_7BIT;
+ break;
- cp += (i = strlen (cp)) - 1;
- if (i <= 1 || *cp-- != '\n' || *cp != '\\')
- break;
- *cp = '\0';
- n -= (i - 2);
- }
+ case CT_AUDIO:
+ case CT_IMAGE:
+ case CT_VIDEO:
+ /* For audio, image, and video contents, just use base64 */
+ ct->c_encoding = CE_BASE64;
+ break;
+ }
- return s;
+ return (boundaryclash ? NOTOK : OK);
}
/*
- * Parse the composition draft for text and directives.
- * Do initial setup of Content structure.
- */
+** Scan the content structures, and build header
+** fields that will need to be output into the
+** message.
+*/
static int
-user_content (FILE *in, char *file, char *buf, CT *ctp)
+build_headers (CT ct)
{
- int extrnal, vrsn;
- char *cp, **ap;
- char buffer[BUFSIZ];
- struct multipart *m;
- struct part **pp;
- struct stat st;
- struct str2init *s2i;
- CI ci;
- CT ct;
- CE ce;
-
- if (buf[0] == '\n' || strcmp (buf, "#\n") == 0) {
- *ctp = NULL;
- return OK;
- }
-
- /* allocate basic Content structure */
- if ((ct = (CT) calloc (1, sizeof(*ct))) == NULL)
- adios (NULL, "out of memory");
- *ctp = ct;
-
- /* allocate basic structure for handling decoded content */
- init_decoded_content (ct);
- ce = ct->c_cefile;
-
- ci = &ct->c_ctinfo;
- set_id (ct, 0);
-
- /*
- * Handle inline text. Check if line
- * is one of the following forms:
- *
- * 1) doesn't begin with '#' (implicit directive)
- * 2) begins with "##" (implicit directive)
- * 3) begins with "#<"
- */
- if (buf[0] != '#' || buf[1] == '#' || buf[1] == '<') {
- int headers;
- int inlineD;
- long pos;
- char content[BUFSIZ];
- FILE *out;
-
- /* use a temp file to collect the plain text lines */
- ce->ce_file = add (m_tmpfil (invo_name), NULL);
- ce->ce_unlink = 1;
-
- if ((out = fopen (ce->ce_file, "w")) == NULL)
- adios (ce->ce_file, "unable to open for writing");
-
- if (buf[0] == '#' && buf[1] == '<') {
- strncpy (content, buf + 2, sizeof(content));
- inlineD = 1;
- goto rock_and_roll;
- } else {
- inlineD = 0;
- }
-
- /* the directive is implicit */
- strncpy (content, "text/plain", sizeof(content));
- headers = 0;
- strncpy (buffer, buf[0] != '#' ? buf : buf + 1, sizeof(buffer));
- for (;;) {
- int i;
-
- if (headers >= 0 && uprf (buffer, DESCR_FIELD)
- && buffer[i = strlen (DESCR_FIELD)] == ':') {
- headers = 1;
-
-again_descr:
- ct->c_descr = add (buffer + i + 1, ct->c_descr);
- if (!fgetstr (buffer, sizeof(buffer) - 1, in))
- adios (NULL, "end-of-file after %s: field in plaintext", DESCR_FIELD);
- switch (buffer[0]) {
- case ' ':
- case '\t':
- i = -1;
- goto again_descr;
-
- case '#':
- adios (NULL, "#-directive after %s: field in plaintext", DESCR_FIELD);
- /* NOTREACHED */
-
- default:
- break;
- }
- }
-
- if (headers != 1 || buffer[0] != '\n')
- fputs (buffer, out);
-
-rock_and_roll:
- headers = -1;
- pos = ftell (in);
- if ((cp = fgetstr (buffer, sizeof(buffer) - 1, in)) == NULL)
- break;
- if (buffer[0] == '#') {
- char *bp;
-
- if (buffer[1] != '#')
- break;
- for (cp = (bp = buffer) + 1; *cp; cp++)
- *bp++ = *cp;
- *bp = '\0';
- }
- }
-
- if (listsw)
- ct->c_end = ftell (out);
- fclose (out);
-
- /* parse content type */
- if (get_ctinfo (content, ct, inlineD) == NOTOK)
- done (1);
-
- for (s2i = str2cts; s2i->si_key; s2i++)
- if (!strcasecmp (ci->ci_type, s2i->si_key))
- break;
- if (!s2i->si_key && !uprf (ci->ci_type, "X-"))
- s2i++;
+ int cc, mailbody, len;
+ char **ap, **ep;
+ char *np, *vp, buffer[BUFSIZ];
+ CI ci = &ct->c_ctinfo;
/*
- * check type specified (possibly implicitly)
- */
- switch (ct->c_type = s2i->si_val) {
- case CT_MESSAGE:
- if (!strcasecmp (ci->ci_subtype, "rfc822")) {
- ct->c_encoding = CE_7BIT;
- goto call_init;
- }
- /* else fall... */
- case CT_MULTIPART:
- adios (NULL, "it doesn't make sense to define an in-line %s content",
- ct->c_type == CT_MESSAGE ? "message" : "multipart");
- /* NOTREACHED */
+ ** If message is type multipart, then add the multipart
+ ** boundary to the list of attribute/value pairs.
+ */
+ if (ct->c_type == CT_MULTIPART) {
+ char *cp;
+ static int level = 0; /* store nesting level */
- default:
-call_init:
- if ((ct->c_ctinitfnx = s2i->si_init))
- (*ct->c_ctinitfnx) (ct);
- break;
+ ap = ci->ci_attrs;
+ ep = ci->ci_values;
+ snprintf (buffer, sizeof(buffer), "boundary=%s%d", prefix, level++);
+ cp = strchr(*ap++ = add (buffer, NULL), '=');
+ *ap = NULL;
+ *cp++ = '\0';
+ *ep = cp;
}
- if (cp)
- fseek (in, pos, SEEK_SET);
- return OK;
- }
-
- /*
- * If we've reached this point, the next line
- * must be some type of explicit directive.
- */
-
- /* check if directive is external-type */
- extrnal = (buf[1] == '@');
-
- /* parse directive */
- if (get_ctinfo (buf + (extrnal ? 2 : 1), ct, 1) == NOTOK)
- done (1);
-
- /* check directive against the list of MIME types */
- for (s2i = str2cts; s2i->si_key; s2i++)
- if (!strcasecmp (ci->ci_type, s2i->si_key))
- break;
-
- /*
- * Check if the directive specified a valid type.
- * This will happen if it was one of the following forms:
- *
- * #type/subtype (or)
- * #@type/subtype
- */
- if (s2i->si_key) {
- if (!ci->ci_subtype)
- adios (NULL, "missing subtype in \"#%s\"", ci->ci_type);
-
- switch (ct->c_type = s2i->si_val) {
- case CT_MULTIPART:
- adios (NULL, "use \"#begin ... #end\" instead of \"#%s/%s\"",
- ci->ci_type, ci->ci_subtype);
- /* NOTREACHED */
-
- case CT_MESSAGE:
- if (!strcasecmp (ci->ci_subtype, "partial"))
- adios (NULL, "sorry, \"#%s/%s\" isn't supported",
- ci->ci_type, ci->ci_subtype);
- if (!strcasecmp (ci->ci_subtype, "external-body"))
- adios (NULL, "use \"#@type/subtype ... [] ...\" instead of \"#%s/%s\"",
- ci->ci_type, ci->ci_subtype);
-use_forw:
- adios (NULL,
- "use \"#forw [+folder] [msgs]\" instead of \"#%s/%s\"",
- ci->ci_type, ci->ci_subtype);
- /* NOTREACHED */
-
- default:
- if ((ct->c_ctinitfnx = s2i->si_init))
- (*ct->c_ctinitfnx) (ct);
- break;
- }
+ /*
+ ** Skip the output of Content-Type, parameters, content
+ ** description and disposition, and Content-ID if the
+ ** content is of type "message" and the rfc934 compatibility
+ ** flag is set (which means we are inside multipart/digest
+ ** and the switch -rfc934mode was given).
+ */
+ if (ct->c_type == CT_MESSAGE && ct->c_rfc934)
+ goto skip_headers;
/*
- * #@type/subtype (external types directive)
- */
- if (extrnal) {
- struct exbody *e;
- CT p;
-
- if (!ci->ci_magic)
- adios (NULL, "need external information for \"#@%s/%s\"",
- ci->ci_type, ci->ci_subtype);
- p = ct;
-
- snprintf (buffer, sizeof(buffer), "message/external-body; %s", ci->ci_magic);
- free (ci->ci_magic);
- ci->ci_magic = NULL;
-
- /*
- * Since we are using the current Content structure to
- * hold information about the type of the external
- * reference, we need to create another Content structure
- * for the message/external-body to wrap it in.
- */
- if ((ct = (CT) calloc (1, sizeof(*ct))) == NULL)
- adios (NULL, "out of memory");
- *ctp = ct;
- ci = &ct->c_ctinfo;
- if (get_ctinfo (buffer, ct, 0) == NOTOK)
- done (1);
- ct->c_type = CT_MESSAGE;
- ct->c_subtype = MESSAGE_EXTERNAL;
+ ** output the content type and subtype
+ */
+ np = add (TYPE_FIELD, NULL);
+ vp = concat (" ", ci->ci_type, "/", ci->ci_subtype, NULL);
- if ((e = (struct exbody *) calloc (1, sizeof(*e))) == NULL)
- adios (NULL, "out of memory");
- ct->c_ctparams = (void *) e;
+ /* keep track of length of line */
+ len = strlen (TYPE_FIELD) + strlen (ci->ci_type)
+ + strlen (ci->ci_subtype) + 3;
- e->eb_parent = ct;
- e->eb_content = p;
- p->c_ctexbody = e;
+ mailbody = ct->c_type == CT_MESSAGE
+ && ct->c_subtype == MESSAGE_EXTERNAL
+ && ((struct exbody *) ct->c_ctparams)->eb_body;
- if (params_external (ct, 1) == NOTOK)
- done (1);
+ /*
+ ** Append the attribute/value pairs to
+ ** the end of the Content-Type line.
+ */
+ for (ap = ci->ci_attrs, ep = ci->ci_values; *ap; ap++, ep++) {
+ if (mailbody && !mh_strcasecmp (*ap, "body"))
+ continue;
- return OK;
- }
+ vp = add (";", vp);
+ len++;
- /* Handle [file] argument */
- if (ci->ci_magic) {
- /* check if specifies command to execute */
- if (*ci->ci_magic == '|' || *ci->ci_magic == '!') {
- for (cp = ci->ci_magic + 1; isspace (*cp); cp++)
- continue;
- if (!*cp)
- adios (NULL, "empty pipe command for #%s directive", ci->ci_type);
- cp = add (cp, NULL);
- free (ci->ci_magic);
- ci->ci_magic = cp;
- } else {
- /* record filename of decoded contents */
- ce->ce_file = ci->ci_magic;
- if (access (ce->ce_file, R_OK) == NOTOK)
- adios ("reading", "unable to access %s for", ce->ce_file);
- if (listsw && stat (ce->ce_file, &st) != NOTOK)
- ct->c_end = (long) st.st_size;
- ci->ci_magic = NULL;
- }
- return OK;
+ snprintf (buffer, sizeof(buffer), "%s=\"%s\"", *ap, *ep);
+ if (len + 1 + (cc = strlen (buffer)) >= CPERLIN) {
+ vp = add ("\n\t", vp);
+ len = 8;
+ } else {
+ vp = add (" ", vp);
+ len++;
+ }
+ vp = add (buffer, vp);
+ len += cc;
}
/*
- * No [file] argument, so check profile for
- * method to compose content.
- */
- snprintf (buffer, sizeof(buffer), "%s-compose-%s/%s",
- invo_name, ci->ci_type, ci->ci_subtype);
- if ((cp = context_find (buffer)) == NULL || *cp == '\0') {
- snprintf (buffer, sizeof(buffer), "%s-compose-%s", invo_name, ci->ci_type);
- if ((cp = context_find (buffer)) == NULL || *cp == '\0') {
- content_error (NULL, ct, "don't know how to compose content");
- done (1);
- }
- }
- ci->ci_magic = add (cp, NULL);
- return OK;
- }
-
- if (extrnal)
- adios (NULL, "external definition not allowed for \"#%s\"", ci->ci_type);
-
- /*
- * Message directive
- * #forw [+folder] [msgs]
- */
- if (!strcasecmp (ci->ci_type, "forw")) {
- int msgnum;
- char *folder, *arguments[MAXARGS];
- struct msgs *mp;
-
- if (ci->ci_magic) {
- ap = brkstring (ci->ci_magic, " ", "\n");
- copyip (ap, arguments, MAXARGS);
- } else {
- arguments[0] = "cur";
- arguments[1] = NULL;
- }
- folder = NULL;
-
- /* search the arguments for a folder name */
- for (ap = arguments; *ap; ap++) {
- cp = *ap;
- if (*cp == '+' || *cp == '@') {
- if (folder)
- adios (NULL, "only one folder per #forw directive");
- else
- folder = path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
- }
+ ** Append any RFC-822 comment to the end of
+ ** the Content-Type line.
+ */
+ if (ci->ci_comment) {
+ snprintf (buffer, sizeof(buffer), "(%s)", ci->ci_comment);
+ if (len + 1 + (cc = 2 + strlen (ci->ci_comment)) >= CPERLIN) {
+ vp = add ("\n\t", vp);
+ len = 8;
+ } else {
+ vp = add (" ", vp);
+ len++;
+ }
+ vp = add (buffer, vp);
+ len += cc;
}
+ vp = add ("\n", vp);
+ add_header (ct, np, vp);
- /* else, use the current folder */
- if (!folder)
- folder = add (getfolder (1), NULL);
-
- if (!(mp = folder_read (folder)))
- adios (NULL, "unable to read folder %s", folder);
- for (ap = arguments; *ap; ap++) {
- cp = *ap;
- if (*cp != '+' && *cp != '@')
- if (!m_convert (mp, cp))
- done (1);
+ /*
+ ** output the Content-ID, unless disabled by -nocontentid
+ */
+ if (contentidsw && ct->c_id) {
+ np = add (ID_FIELD, NULL);
+ vp = concat (" ", ct->c_id, NULL);
+ add_header (ct, np, vp);
}
- free (folder);
- free_ctinfo (ct);
/*
- * If there is more than one message to include, make this
- * a content of type "multipart/digest" and insert each message
- * as a subpart. If there is only one message, then make this
- * a content of type "message/rfc822".
- */
- if (mp->numsel > 1) {
- /* we are forwarding multiple messages */
- if (get_ctinfo ("multipart/digest", ct, 0) == NOTOK)
- done (1);
- ct->c_type = CT_MULTIPART;
- ct->c_subtype = MULTI_DIGEST;
-
- if ((m = (struct multipart *) calloc (1, sizeof(*m))) == NULL)
- adios (NULL, "out of memory");
- ct->c_ctparams = (void *) m;
- pp = &m->mp_parts;
-
- for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
- if (is_selected(mp, msgnum)) {
- struct part *part;
- CT p;
- CE pe;
-
- if ((p = (CT) calloc (1, sizeof(*p))) == NULL)
- adios (NULL, "out of memory");
- init_decoded_content (p);
- pe = p->c_cefile;
- if (get_ctinfo ("message/rfc822", p, 0) == NOTOK)
- done (1);
- p->c_type = CT_MESSAGE;
- p->c_subtype = MESSAGE_RFC822;
-
- snprintf (buffer, sizeof(buffer), "%s/%d", mp->foldpath, msgnum);
- pe->ce_file = add (buffer, NULL);
- if (listsw && stat (pe->ce_file, &st) != NOTOK)
- p->c_end = (long) st.st_size;
-
- if ((part = (struct part *) calloc (1, sizeof(*part))) == NULL)
- adios (NULL, "out of memory");
- *pp = part;
- pp = &part->mp_next;
- part->mp_part = p;
- }
- }
- } else {
- /* we are forwarding one message */
- if (get_ctinfo ("message/rfc822", ct, 0) == NOTOK)
- done (1);
- ct->c_type = CT_MESSAGE;
- ct->c_subtype = MESSAGE_RFC822;
-
- msgnum = mp->lowsel;
- snprintf (buffer, sizeof(buffer), "%s/%d", mp->foldpath, msgnum);
- ce->ce_file = add (buffer, NULL);
- if (listsw && stat (ce->ce_file, &st) != NOTOK)
- ct->c_end = (long) st.st_size;
+ ** output the Content-Description
+ */
+ if (ct->c_descr) {
+ np = add (DESCR_FIELD, NULL);
+ vp = concat (" ", ct->c_descr, NULL);
+ add_header (ct, np, vp);
}
- folder_free (mp); /* free folder/message structure */
- return OK;
- }
-
- /*
- * #end
- */
- if (!strcasecmp (ci->ci_type, "end")) {
- free_content (ct);
- *ctp = NULL;
- return DONE;
- }
-
- /*
- * #begin [ alternative | parallel ]
- */
- if (!strcasecmp (ci->ci_type, "begin")) {
- if (!ci->ci_magic) {
- vrsn = MULTI_MIXED;
- cp = SubMultiPart[vrsn - 1].kv_key;
- } else if (!strcasecmp (ci->ci_magic, "alternative")) {
- vrsn = MULTI_ALTERNATE;
- cp = SubMultiPart[vrsn - 1].kv_key;
- } else if (!strcasecmp (ci->ci_magic, "parallel")) {
- vrsn = MULTI_PARALLEL;
- cp = SubMultiPart[vrsn - 1].kv_key;
- } else if (uprf (ci->ci_magic, "digest")) {
- goto use_forw;
- } else {
- vrsn = MULTI_UNKNOWN;
- cp = ci->ci_magic;
+ /*
+ ** output the Content-Disposition
+ */
+ if (ct->c_dispo) {
+ np = add (DISPO_FIELD, NULL);
+ vp = concat (" ", ct->c_dispo, NULL);
+ add_header (ct, np, vp);
}
- free_ctinfo (ct);
- snprintf (buffer, sizeof(buffer), "multipart/%s", cp);
- if (get_ctinfo (buffer, ct, 0) == NOTOK)
- done (1);
- ct->c_type = CT_MULTIPART;
- ct->c_subtype = vrsn;
-
- if ((m = (struct multipart *) calloc (1, sizeof(*m))) == NULL)
- adios (NULL, "out of memory");
- ct->c_ctparams = (void *) m;
-
- pp = &m->mp_parts;
- while (fgetstr (buffer, sizeof(buffer) - 1, in)) {
- struct part *part;
- CT p;
-
- if (user_content (in, file, buffer, &p) == DONE) {
- if (!m->mp_parts)
- adios (NULL, "empty \"#begin ... #end\" sequence");
+skip_headers:
+ /*
+ ** If this is the internal content structure for a
+ ** "message/external", then we are done with the
+ ** headers (since it has no body).
+ */
+ if (ct->c_ctexbody)
return OK;
- }
- if (!p)
- continue;
- if ((part = (struct part *) calloc (1, sizeof(*part))) == NULL)
- adios (NULL, "out of memory");
- *pp = part;
- pp = &part->mp_next;
- part->mp_part = p;
+ /*
+ ** output the Content-MD5
+ */
+ if (checksw) {
+ np = add (MD5_FIELD, NULL);
+ vp = calculate_digest (ct, (ct->c_encoding == CE_QUOTED) ? 1 : 0);
+ add_header (ct, np, vp);
}
- admonish (NULL, "premature end-of-file, missing #end");
- return OK;
- }
- /*
- * Unknown directive
- */
- adios (NULL, "unknown directive \"#%s\"", ci->ci_type);
- return NOTOK; /* NOT REACHED */
-}
+ /*
+ ** output the Content-Transfer-Encoding
+ */
+ switch (ct->c_encoding) {
+ case CE_7BIT:
+ /* Nothing to output */
+#if 0
+ np = add (ENCODING_FIELD, NULL);
+ vp = concat (" ", "7bit", "\n", NULL);
+ add_header (ct, np, vp);
+#endif
+ break;
+ case CE_8BIT:
+ if (ct->c_type == CT_MESSAGE)
+ adios (NULL, "internal error, invalid encoding");
-static void
-set_id (CT ct, int top)
-{
- char msgid[BUFSIZ];
- static int partno;
- static time_t clock = 0;
- static char *msgfmt;
-
- if (clock == 0) {
- time (&clock);
- snprintf (msgid, sizeof(msgid), "<%d.%ld.%%d@%s>\n",
- (int) getpid(), (long) clock, LocalName());
- partno = 0;
- msgfmt = getcpy(msgid);
- }
- snprintf (msgid, sizeof(msgid), msgfmt, top ? 0 : ++partno);
- ct->c_id = getcpy (msgid);
-}
+ np = add (ENCODING_FIELD, NULL);
+ vp = concat (" ", "8bit", "\n", NULL);
+ add_header (ct, np, vp);
+ break;
+ case CE_QUOTED:
+ if (ct->c_type == CT_MESSAGE || ct->c_type == CT_MULTIPART)
+ adios (NULL, "internal error, invalid encoding");
-static char ebcdicsafe[0x100] = {
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
- 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01,
- 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
+ np = add (ENCODING_FIELD, NULL);
+ vp = concat (" ", "quoted-printable", "\n", NULL);
+ add_header (ct, np, vp);
+ break;
+ case CE_BASE64:
+ if (ct->c_type == CT_MESSAGE || ct->c_type == CT_MULTIPART)
+ adios (NULL, "internal error, invalid encoding");
-/*
- * Fill out, or expand the various contents in the composition
- * draft. Read-in any necessary files. Parse and execute any
- * commands specified by profile composition strings.
- */
+ np = add (ENCODING_FIELD, NULL);
+ vp = concat (" ", "base64", "\n", NULL);
+ add_header (ct, np, vp);
+ break;
-static int
-compose_content (CT ct)
-{
- CE ce = ct->c_cefile;
-
- switch (ct->c_type) {
- case CT_MULTIPART:
- {
- int partnum;
- char *pp;
- char partnam[BUFSIZ];
- struct multipart *m = (struct multipart *) ct->c_ctparams;
- struct part *part;
-
- if (ct->c_partno) {
- snprintf (partnam, sizeof(partnam), "%s.", ct->c_partno);
- pp = partnam + strlen (partnam);
- } else {
- pp = partnam;
- }
+ case CE_BINARY:
+ if (ct->c_type == CT_MESSAGE)
+ adios (NULL, "internal error, invalid encoding");
- /* first, we call compose_content on all the subparts */
- for (part = m->mp_parts, partnum = 1; part; part = part->mp_next, partnum++) {
- CT p = part->mp_part;
+ np = add (ENCODING_FIELD, NULL);
+ vp = concat (" ", "binary", "\n", NULL);
+ add_header (ct, np, vp);
+ break;
- sprintf (pp, "%d", partnum);
- p->c_partno = add (partnam, NULL);
- if (compose_content (p) == NOTOK)
- return NOTOK;
+ default:
+ adios (NULL, "unknown transfer encoding in content");
+ break;
}
/*
- * If the -rfc934mode switch is given, then check all
- * the subparts of a multipart/digest. If they are all
- * message/rfc822, then mark this content and all
- * subparts with the rfc934 compatibility mode flag.
- */
- if (rfc934sw && ct->c_subtype == MULTI_DIGEST) {
- int is934 = 1;
-
- for (part = m->mp_parts; part; part = part->mp_next) {
- CT p = part->mp_part;
-
- if (p->c_subtype != MESSAGE_RFC822) {
- is934 = 0;
- break;
- }
- }
- ct->c_rfc934 = is934;
- for (part = m->mp_parts; part; part = part->mp_next) {
- CT p = part->mp_part;
-
- if ((p->c_rfc934 = is934))
- p->c_end++;
- }
- }
+ ** Additional content specific header processing
+ */
+ switch (ct->c_type) {
+ case CT_MULTIPART:
+ {
+ struct multipart *m;
+ struct part *part;
- if (listsw) {
- ct->c_end = (partnum = strlen (prefix) + 2) + 2;
- if (ct->c_rfc934)
- ct->c_end += 1;
+ m = (struct multipart *) ct->c_ctparams;
+ for (part = m->mp_parts; part; part = part->mp_next) {
+ CT p;
- for (part = m->mp_parts; part; part = part->mp_next)
- ct->c_end += part->mp_part->c_end + partnum;
+ p = part->mp_part;
+ build_headers (p);
+ }
}
- }
- break;
-
- case CT_MESSAGE:
- /* Nothing to do for type message */
- break;
-
- /*
- * Discrete types (text/application/audio/image/video)
- */
- default:
- if (!ce->ce_file) {
- pid_t child_id;
- int i, xstdout, len, buflen;
- char *bp, **ap, *cp;
- char *vec[4], buffer[BUFSIZ];
- FILE *out;
- CI ci = &ct->c_ctinfo;
-
- if (!(cp = ci->ci_magic))
- adios (NULL, "internal error(5)");
-
- ce->ce_file = add (m_tmpfil (invo_name), NULL);
- ce->ce_unlink = 1;
-
- xstdout = 0;
-
- /* Get buffer ready to go */
- bp = buffer;
- bp[0] = '\0';
- buflen = sizeof(buffer);
-
- /*
- * Parse composition string into buffer
- */
- for ( ; *cp; cp++) {
- if (*cp == '%') {
- switch (*++cp) {
- case 'a':
- {
- /* insert parameters from directive */
- char **ep;
- char *s = "";
-
- for (ap = ci->ci_attrs, ep = ci->ci_values; *ap; ap++, ep++) {
- snprintf (bp, buflen, "%s%s=\"%s\"", s, *ap, *ep);
- len = strlen (bp);
- bp += len;
- buflen -= len;
- s = " ";
- }
- }
- break;
-
- case 'F':
- /* %f, and stdout is not-redirected */
- xstdout = 1;
- /* and fall... */
-
- case 'f':
- /*
- * insert temporary filename where
- * content should be written
- */
- snprintf (bp, buflen, "%s", ce->ce_file);
- break;
-
- case 's':
- /* insert content subtype */
- strncpy (bp, ci->ci_subtype, buflen);
- break;
+ break;
- case '%':
- /* insert character % */
- goto raw;
+ case CT_MESSAGE:
+ if (ct->c_subtype == MESSAGE_EXTERNAL) {
+ struct exbody *e;
- default:
- *bp++ = *--cp;
- *bp = '\0';
- buflen--;
- continue;
- }
- len = strlen (bp);
- bp += len;
- buflen -= len;
- } else {
-raw:
- *bp++ = *cp;
- *bp = '\0';
- buflen--;
+ e = (struct exbody *) ct->c_ctparams;
+ build_headers (e->eb_content);
}
- }
-
- if (verbosw)
- printf ("composing content %s/%s from command\n\t%s\n",
- ci->ci_type, ci->ci_subtype, buffer);
-
- fflush (stdout); /* not sure if need for -noverbose */
-
- vec[0] = "/bin/sh";
- vec[1] = "-c";
- vec[2] = buffer;
- vec[3] = NULL;
-
- if ((out = fopen (ce->ce_file, "w")) == NULL)
- adios (ce->ce_file, "unable to open for writing");
-
- for (i = 0; (child_id = vfork()) == NOTOK && i > 5; i++)
- sleep (5);
- switch (child_id) {
- case NOTOK:
- adios ("fork", "unable to fork");
- /* NOTREACHED */
-
- case OK:
- if (!xstdout)
- dup2 (fileno (out), 1);
- close (fileno (out));
- execvp ("/bin/sh", vec);
- fprintf (stderr, "unable to exec ");
- perror ("/bin/sh");
- _exit (-1);
- /* NOTREACHED */
-
- default:
- fclose (out);
- if (pidXwait(child_id, NULL))
- done (1);
break;
- }
- }
-
- /* Check size of file */
- if (listsw && ct->c_end == 0L) {
- struct stat st;
- if (stat (ce->ce_file, &st) != NOTOK)
- ct->c_end = (long) st.st_size;
+ default:
+ /* Nothing to do */
+ break;
}
- break;
- }
- return OK;
+ return OK;
}
-/*
- * Scan the content.
- *
- * 1) choose a transfer encoding.
- * 2) check for clashes with multipart boundary string.
- * 3) for text content, figure out which character set is being used.
- *
- * If there is a clash with one of the contents and the multipart boundary,
- * this function will exit with NOTOK. This will cause the scanning process
- * to be repeated with a different multipart boundary. It is possible
- * (although highly unlikely) that this scan will be repeated multiple times.
- */
+static char nib2b64[0x40+1] =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-static int
-scan_content (CT ct)
+static char *
+calculate_digest (CT ct, int asciiP)
{
- int len;
- int check8bit, contains8bit = 0; /* check if contains 8bit data */
- int checklinelen, linelen = 0; /* check for long lines */
- int checkboundary, boundaryclash = 0; /* check if clashes with multipart boundary */
- int checklinespace, linespace = 0; /* check if any line ends with space */
- int checkebcdic, ebcdicunsafe = 0; /* check if contains ebcdic unsafe characters */
- char *cp, buffer[BUFSIZ];
- struct text *t;
- FILE *in;
- CE ce = ct->c_cefile;
-
- /*
- * handle multipart by scanning all subparts
- * and then checking their encoding.
- */
- if (ct->c_type == CT_MULTIPART) {
- struct multipart *m = (struct multipart *) ct->c_ctparams;
- struct part *part;
-
- /* initially mark the domain of enclosing multipart as 7bit */
- ct->c_encoding = CE_7BIT;
-
- for (part = m->mp_parts; part; part = part->mp_next) {
- CT p = part->mp_part;
-
- if (scan_content (p) == NOTOK) /* choose encoding for subpart */
- return NOTOK;
-
- /* if necessary, enlarge encoding for enclosing multipart */
- if (p->c_encoding == CE_BINARY)
- ct->c_encoding = CE_BINARY;
- if (p->c_encoding == CE_8BIT && ct->c_encoding != CE_BINARY)
- ct->c_encoding = CE_8BIT;
- }
-
- return OK;
- }
-
- /*
- * Decide what to check while scanning this content.
- */
- switch (ct->c_type) {
- case CT_TEXT:
- check8bit = 1;
- checkboundary = 1;
- if (ct->c_subtype == TEXT_PLAIN) {
- checkebcdic = 0;
- checklinelen = 0;
- checklinespace = 0;
- } else {
- checkebcdic = ebcdicsw;
- checklinelen = 1;
- checklinespace = 1;
- }
- break;
-
- case CT_APPLICATION:
- check8bit = 1;
- checkebcdic = ebcdicsw;
- checklinelen = 1;
- checklinespace = 1;
- checkboundary = 1;
- break;
-
- case CT_MESSAGE:
- check8bit = 0;
- checkebcdic = 0;
- checklinelen = 0;
- checklinespace = 0;
-
- /* don't check anything for message/external */
- if (ct->c_subtype == MESSAGE_EXTERNAL)
- checkboundary = 0;
- else
- checkboundary = 1;
- break;
-
- case CT_AUDIO:
- case CT_IMAGE:
- case CT_VIDEO:
- /*
- * Don't check anything for these types,
- * since we are forcing use of base64.
- */
- check8bit = 0;
- checkebcdic = 0;
- checklinelen = 0;
- checklinespace = 0;
- checkboundary = 0;
- break;
- }
+ int cc;
+ char buffer[BUFSIZ], *vp, *op;
+ unsigned char *dp;
+ unsigned char digest[16];
+ unsigned char outbuf[25];
+ FILE *in;
+ MD5_CTX mdContext;
+ CE ce = ct->c_cefile;
- /*
- * Scan the unencoded content
- */
- if (check8bit || checklinelen || checklinespace || checkboundary) {
+ /* open content */
if ((in = fopen (ce->ce_file, "r")) == NULL)
- adios (ce->ce_file, "unable to open for reading");
- len = strlen (prefix);
-
- while (fgets (buffer, sizeof(buffer) - 1, in)) {
- /*
- * Check for 8bit data.
- */
- if (check8bit) {
- for (cp = buffer; *cp; cp++) {
- if (!isascii (*cp)) {
- contains8bit = 1;
- check8bit = 0; /* no need to keep checking */
- }
- /*
- * Check if character is ebcdic-safe. We only check
- * this if also checking for 8bit data.
- */
- if (checkebcdic && !ebcdicsafe[*cp & 0xff]) {
- ebcdicunsafe = 1;
- checkebcdic = 0; /* no need to keep checking */
- }
- }
- }
-
- /*
- * Check line length.
- */
- if (checklinelen && (strlen (buffer) > CPERLIN + 1)) {
- linelen = 1;
- checklinelen = 0; /* no need to keep checking */
- }
-
- /*
- * Check if line ends with a space.
- */
- if (checklinespace && (cp = buffer + strlen (buffer) - 2) > buffer && isspace (*cp)) {
- linespace = 1;
- checklinespace = 0; /* no need to keep checking */
- }
-
- /*
- * Check if content contains a line that clashes
- * with our standard boundary for multipart messages.
- */
- if (checkboundary && buffer[0] == '-' && buffer[1] == '-') {
- for (cp = buffer + strlen (buffer) - 1; cp >= buffer; cp--)
- if (!isspace (*cp))
- break;
- *++cp = '\0';
- if (!strncmp(buffer + 2, prefix, len) && isdigit(buffer[2 + len])) {
- boundaryclash = 1;
- checkboundary = 0; /* no need to keep checking */
- }
- }
- }
- fclose (in);
- }
-
- /*
- * Decide which transfer encoding to use.
- */
- switch (ct->c_type) {
- case CT_TEXT:
- /*
- * If the text content didn't specify a character
- * set, we need to figure out which one was used.
- */
- t = (struct text *) ct->c_ctparams;
- if (t->tx_charset == CHARSET_UNSPECIFIED) {
- CI ci = &ct->c_ctinfo;
- char **ap, **ep;
-
- for (ap = ci->ci_attrs, ep = ci->ci_values; *ap; ap++, ep++)
- continue;
-
- if (contains8bit) {
- t->tx_charset = CHARSET_UNKNOWN;
- *ap = concat ("charset=", write_charset_8bit(), NULL);
- } else {
- t->tx_charset = CHARSET_USASCII;
- *ap = add ("charset=us-ascii", NULL);
- }
-
- cp = strchr(*ap++, '=');
- *ap = NULL;
- *cp++ = '\0';
- *ep = cp;
- }
-
- if (contains8bit || ebcdicunsafe || linelen || linespace || checksw)
- ct->c_encoding = CE_QUOTED;
- else
- ct->c_encoding = CE_7BIT;
- break;
-
- case CT_APPLICATION:
- /* For application type, use base64, except when postscript */
- if (contains8bit || ebcdicunsafe || linelen || linespace || checksw)
- ct->c_encoding = (ct->c_subtype == APPLICATION_POSTSCRIPT)
- ? CE_QUOTED : CE_BASE64;
- else
- ct->c_encoding = CE_7BIT;
- break;
-
- case CT_MESSAGE:
- ct->c_encoding = CE_7BIT;
- break;
-
- case CT_AUDIO:
- case CT_IMAGE:
- case CT_VIDEO:
- /* For audio, image, and video contents, just use base64 */
- ct->c_encoding = CE_BASE64;
- break;
- }
+ adios (ce->ce_file, "unable to open for reading");
- return (boundaryclash ? NOTOK : OK);
-}
+ /* Initialize md5 context */
+ MD5Init (&mdContext);
+ /* calculate md5 message digest */
+ if (asciiP) {
+ while (fgets (buffer, sizeof(buffer) - 1, in)) {
+ char c, *cp;
-/*
- * Scan the content structures, and build header
- * fields that will need to be output into the
- * message.
- */
+ cp = buffer + strlen (buffer) - 1;
+ if ((c = *cp) == '\n')
+ *cp = '\0';
-static int
-build_headers (CT ct)
-{
- int cc, mailbody, len;
- char **ap, **ep;
- char *np, *vp, buffer[BUFSIZ];
- CI ci = &ct->c_ctinfo;
-
- /*
- * If message is type multipart, then add the multipart
- * boundary to the list of attribute/value pairs.
- */
- if (ct->c_type == CT_MULTIPART) {
- char *cp;
- static int level = 0; /* store nesting level */
-
- ap = ci->ci_attrs;
- ep = ci->ci_values;
- snprintf (buffer, sizeof(buffer), "boundary=%s%d", prefix, level++);
- cp = strchr(*ap++ = add (buffer, NULL), '=');
- *ap = NULL;
- *cp++ = '\0';
- *ep = cp;
- }
-
- /*
- * Skip the output of Content-Type, parameters, content
- * description, and Content-ID if the content is of type
- * "message" and the rfc934 compatibility flag is set
- * (which means we are inside multipart/digest and the
- * switch -rfc934mode was given).
- */
- if (ct->c_type == CT_MESSAGE && ct->c_rfc934)
- goto skip_headers;
-
- /*
- * output the content type and subtype
- */
- np = add (TYPE_FIELD, NULL);
- vp = concat (" ", ci->ci_type, "/", ci->ci_subtype, NULL);
-
- /* keep track of length of line */
- len = strlen (TYPE_FIELD) + strlen (ci->ci_type)
- + strlen (ci->ci_subtype) + 3;
+ MD5Update (&mdContext, (unsigned char *) buffer,
+ (unsigned int) strlen (buffer));
- mailbody = ct->c_type == CT_MESSAGE
- && ct->c_subtype == MESSAGE_EXTERNAL
- && ((struct exbody *) ct->c_ctparams)->eb_body;
-
- /*
- * Append the attribute/value pairs to
- * the end of the Content-Type line.
- */
- for (ap = ci->ci_attrs, ep = ci->ci_values; *ap; ap++, ep++) {
- if (mailbody && !strcasecmp (*ap, "body"))
- continue;
-
- vp = add (";", vp);
- len++;
-
- snprintf (buffer, sizeof(buffer), "%s=\"%s\"", *ap, *ep);
- if (len + 1 + (cc = strlen (buffer)) >= CPERLIN) {
- vp = add ("\n\t", vp);
- len = 8;
- } else {
- vp = add (" ", vp);
- len++;
- }
- vp = add (buffer, vp);
- len += cc;
- }
-
- /*
- * Append any RFC-822 comment to the end of
- * the Content-Type line.
- */
- if (ci->ci_comment) {
- snprintf (buffer, sizeof(buffer), "(%s)", ci->ci_comment);
- if (len + 1 + (cc = 2 + strlen (ci->ci_comment)) >= CPERLIN) {
- vp = add ("\n\t", vp);
- len = 8;
+ if (c == '\n')
+ MD5Update (&mdContext, (unsigned char *) "\r\n", 2);
+ }
} else {
- vp = add (" ", vp);
- len++;
+ while ((cc = fread (buffer, sizeof(*buffer), sizeof(buffer), in)) > 0)
+ MD5Update (&mdContext, (unsigned char *) buffer,
+ (unsigned int) cc);
}
- vp = add (buffer, vp);
- len += cc;
- }
- vp = add ("\n", vp);
- add_header (ct, np, vp);
-
- /*
- * output the Content-ID
- */
- if (ct->c_id) {
- np = add (ID_FIELD, NULL);
- vp = concat (" ", ct->c_id, NULL);
- add_header (ct, np, vp);
- }
-
- /*
- * output the Content-Description
- */
- if (ct->c_descr) {
- np = add (DESCR_FIELD, NULL);
- vp = concat (" ", ct->c_descr, NULL);
- add_header (ct, np, vp);
- }
-
-skip_headers:
- /*
- * If this is the internal content structure for a
- * "message/external", then we are done with the
- * headers (since it has no body).
- */
- if (ct->c_ctexbody)
- return OK;
- /*
- * output the Content-MD5
- */
- if (checksw) {
- np = add (MD5_FIELD, NULL);
- vp = calculate_digest (ct, (ct->c_encoding == CE_QUOTED) ? 1 : 0);
- add_header (ct, np, vp);
- }
-
- /*
- * output the Content-Transfer-Encoding
- */
- switch (ct->c_encoding) {
- case CE_7BIT:
- /* Nothing to output */
-#if 0
- np = add (ENCODING_FIELD, NULL);
- vp = concat (" ", "7bit", "\n", NULL);
- add_header (ct, np, vp);
-#endif
- break;
-
- case CE_8BIT:
- if (ct->c_type == CT_MESSAGE)
- adios (NULL, "internal error, invalid encoding");
-
- np = add (ENCODING_FIELD, NULL);
- vp = concat (" ", "8bit", "\n", NULL);
- add_header (ct, np, vp);
- break;
-
- case CE_QUOTED:
- if (ct->c_type == CT_MESSAGE || ct->c_type == CT_MULTIPART)
- adios (NULL, "internal error, invalid encoding");
-
- np = add (ENCODING_FIELD, NULL);
- vp = concat (" ", "quoted-printable", "\n", NULL);
- add_header (ct, np, vp);
- break;
-
- case CE_BASE64:
- if (ct->c_type == CT_MESSAGE || ct->c_type == CT_MULTIPART)
- adios (NULL, "internal error, invalid encoding");
-
- np = add (ENCODING_FIELD, NULL);
- vp = concat (" ", "base64", "\n", NULL);
- add_header (ct, np, vp);
- break;
-
- case CE_BINARY:
- if (ct->c_type == CT_MESSAGE)
- adios (NULL, "internal error, invalid encoding");
-
- np = add (ENCODING_FIELD, NULL);
- vp = concat (" ", "binary", "\n", NULL);
- add_header (ct, np, vp);
- break;
-
- default:
- adios (NULL, "unknown transfer encoding in content");
- break;
- }
-
- /*
- * Additional content specific header processing
- */
- switch (ct->c_type) {
- case CT_MULTIPART:
- {
- struct multipart *m;
- struct part *part;
-
- m = (struct multipart *) ct->c_ctparams;
- for (part = m->mp_parts; part; part = part->mp_next) {
- CT p;
+ /* md5 finalization. Write digest and zero md5 context */
+ MD5Final (digest, &mdContext);
- p = part->mp_part;
- build_headers (p);
- }
- }
- break;
+ /* close content */
+ fclose (in);
- case CT_MESSAGE:
- if (ct->c_subtype == MESSAGE_EXTERNAL) {
- struct exbody *e;
+ /* print debugging info */
+ if (debugsw) {
+ unsigned char *ep;
- e = (struct exbody *) ct->c_ctparams;
- build_headers (e->eb_content);
+ fprintf (stderr, "MD5 digest=");
+ for (ep = (dp = digest) + sizeof(digest) / sizeof(digest[0]);
+ dp < ep; dp++)
+ fprintf (stderr, "%02x", *dp & 0xff);
+ fprintf (stderr, "\n");
}
- break;
- default:
- /* Nothing to do */
- break;
- }
-
- return OK;
-}
-
-
-static char nib2b64[0x40+1] =
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-static char *
-calculate_digest (CT ct, int asciiP)
-{
- int cc;
- char buffer[BUFSIZ], *vp, *op;
- unsigned char *dp;
- unsigned char digest[16];
- unsigned char outbuf[25];
- FILE *in;
- MD5_CTX mdContext;
- CE ce = ct->c_cefile;
-
- /* open content */
- if ((in = fopen (ce->ce_file, "r")) == NULL)
- adios (ce->ce_file, "unable to open for reading");
-
- /* Initialize md5 context */
- MD5Init (&mdContext);
-
- /* calculate md5 message digest */
- if (asciiP) {
- while (fgets (buffer, sizeof(buffer) - 1, in)) {
- char c, *cp;
-
- cp = buffer + strlen (buffer) - 1;
- if ((c = *cp) == '\n')
- *cp = '\0';
-
- MD5Update (&mdContext, (unsigned char *) buffer,
- (unsigned int) strlen (buffer));
-
- if (c == '\n')
- MD5Update (&mdContext, (unsigned char *) "\r\n", 2);
- }
- } else {
- while ((cc = fread (buffer, sizeof(*buffer), sizeof(buffer), in)) > 0)
- MD5Update (&mdContext, (unsigned char *) buffer, (unsigned int) cc);
- }
-
- /* md5 finalization. Write digest and zero md5 context */
- MD5Final (digest, &mdContext);
-
- /* close content */
- fclose (in);
-
- /* print debugging info */
- if (debugsw) {
- unsigned char *ep;
-
- fprintf (stderr, "MD5 digest=");
- for (ep = (dp = digest) + sizeof(digest) / sizeof(digest[0]);
- dp < ep; dp++)
- fprintf (stderr, "%02x", *dp & 0xff);
- fprintf (stderr, "\n");
- }
-
- /* encode the digest using base64 */
- for (dp = digest, op = outbuf, cc = sizeof(digest) / sizeof(digest[0]);
+ /* encode the digest using base64 */
+ for (dp = digest, op = outbuf, cc = sizeof(digest) / sizeof(digest[0]);
cc > 0; cc -= 3, op += 4) {
- unsigned long bits;
- char *bp;
-
- bits = (*dp++ & 0xff) << 16;
- if (cc > 1) {
- bits |= (*dp++ & 0xff) << 8;
- if (cc > 2)
- bits |= *dp++ & 0xff;
- }
-
- for (bp = op + 4; bp > op; bits >>= 6)
- *--bp = nib2b64[bits & 0x3f];
- if (cc < 3) {
- *(op + 3) = '=';
- if (cc < 2)
- *(op + 2) = '=';
- }
- }
-
- /* null terminate string */
- outbuf[24] = '\0';
-
- /* now make copy and return string */
- vp = concat (" ", outbuf, "\n", NULL);
- return vp;
-}
-
+ unsigned long bits;
+ char *bp;
-static int
-readDigest (CT ct, char *cp)
-{
- int bitno, skip;
- unsigned long bits;
- char *bp = cp;
- unsigned char *dp, value, *ep;
- unsigned char *b, *b1, *b2, *b3;
-
- b = (unsigned char *) &bits,
- b1 = &b[endian > 0 ? 1 : 2],
- b2 = &b[endian > 0 ? 2 : 1],
- b3 = &b[endian > 0 ? 3 : 0];
- bitno = 18;
- bits = 0L;
- skip = 0;
-
- for (ep = (dp = ct->c_digest)
- + sizeof(ct->c_digest) / sizeof(ct->c_digest[0]); *cp; cp++)
- switch (*cp) {
- default:
- if (skip
- || (*cp & 0x80)
- || (value = b642nib[*cp & 0x7f]) > 0x3f) {
- if (debugsw)
- fprintf (stderr, "invalid BASE64 encoding\n");
- return NOTOK;
+ bits = (*dp++ & 0xff) << 16;
+ if (cc > 1) {
+ bits |= (*dp++ & 0xff) << 8;
+ if (cc > 2)
+ bits |= *dp++ & 0xff;
}
- bits |= value << bitno;
-test_end:
- if ((bitno -= 6) < 0) {
- if (dp + (3 - skip) > ep)
- goto invalid_digest;
- *dp++ = *b1;
- if (skip < 2) {
- *dp++ = *b2;
- if (skip < 1)
- *dp++ = *b3;
- }
- bitno = 18;
- bits = 0L;
- skip = 0;
+ for (bp = op + 4; bp > op; bits >>= 6)
+ *--bp = nib2b64[bits & 0x3f];
+ if (cc < 3) {
+ *(op + 3) = '=';
+ if (cc < 2)
+ *(op + 2) = '=';
}
- break;
-
- case '=':
- if (++skip > 3)
- goto self_delimiting;
- goto test_end;
}
- if (bitno != 18) {
- if (debugsw)
- fprintf (stderr, "premature ending (bitno %d)\n", bitno);
-
- return NOTOK;
- }
-self_delimiting:
- if (dp != ep) {
-invalid_digest:
- if (debugsw) {
- while (*cp)
- cp++;
- fprintf (stderr, "invalid MD5 digest (got %d octets)\n",
- cp - bp);
- }
-
- return NOTOK;
- }
- if (debugsw) {
- fprintf (stderr, "MD5 digest=");
- for (dp = ct->c_digest; dp < ep; dp++)
- fprintf (stderr, "%02x", *dp & 0xff);
- fprintf (stderr, "\n");
- }
+ /* null terminate string */
+ outbuf[24] = '\0';
- return OK;
+ /* now make copy and return string */
+ vp = concat (" ", outbuf, "\n", NULL);
+ return vp;
}
projects / mmh / blobdiff