--- /dev/null
+cat `find . -name Makefile.in` | awk -f makedeps2dot | dot -Tpng -o /tmp/deps.png
/*
** mhparse.h -- definitions for parsing/building of MIME content
-** -- (mhparse.c/mhbuildsbr.c)
+** -- (mhparse.c/mhbuild.c)
*/
#define NPARTS 50
--- /dev/null
+BEGIN {
+ FS = " *: *"
+
+ ignore["all"] = 1
+ ignore["configure"] = 1
+ ignore["Makefile"] = 1
+ ignore["install"] = 1
+ ignore["uninstall"] = 1
+ ignore["clean"] = 1
+ ignore["distclean"] = 1
+ ignore["realclean"] = 1
+ ignore["mostlyclean"] = 1
+ ignore["superclean"] = 1
+ ignore["mmhdist"] = 1
+ ignore["lint"] = 1
+
+ print "digraph foo {"
+}
+
+/^\t/ {
+ next
+}
+
+$1 ~ /^[a-zA-Z_]+$/ {
+ if ($1 in ignore) {
+ next
+ }
+ split($2, dep, /[ \t]+/)
+ for (i in dep) {
+ if (dep[i] ~ /^\$/) {
+ continue
+ }
+ if (dep[i] ~ "^"$1"\\.(o|sh)$") {
+ continue
+ }
+ print "\t\"" dep[i] "\" [shape=box];"
+ print "\t\"" dep[i] "\" -> \"" $1 "\";"
+ }
+ print ""
+}
+
+END {
+ print "}"
+}
SRCS = ali.c aliasbr.c anno.c annosbr.c ap.c burst.c comp.c \
conflict.c dist.c distsbr.c dp.c dropsbr.c flist.c fmtdump.c \
folder.c forw.c inc.c mmh.sh mark.c md5.c mhbuild.c \
- mhbuildsbr.c mhcachesbr.c mhfree.c mhl.c mhlist.c mhlistsbr.c \
+ mhcachesbr.c mhfree.c mhl.c mhlist.c mhlistsbr.c \
mhmail.c mhmisc.c mhoutsbr.c mhparam.c mhparse.c \
mhpath.c mhshow.c mhshowsbr.c mhstore.c mhstoresbr.c mhtest.c \
msgchk.c new.c packf.c pick.c print-mimetype.sh \
mark: mark.o $(LOCALLIBS)
$(LINK) mark.o $(LINKLIBS)
-mhbuild: mhbuild.o mhbuildsbr.o mhcachesbr.o mhlistsbr.o mhoutsbr.o mhmisc.o mhfree.o mhparse.o termsbr.o md5.o $(LOCALLIBS)
- $(LINK) mhbuild.o mhbuildsbr.o mhcachesbr.o mhlistsbr.o mhoutsbr.o mhmisc.o mhfree.o mhparse.o md5.o $(LINKLIBS) $(TERMLIB)
+mhbuild: mhbuild.o mhcachesbr.o mhlistsbr.o mhoutsbr.o mhmisc.o mhfree.o mhparse.o termsbr.o md5.o $(LOCALLIBS)
+ $(LINK) mhbuild.o mhcachesbr.o mhlistsbr.o mhoutsbr.o mhmisc.o mhfree.o mhparse.o md5.o $(LINKLIBS) $(TERMLIB)
mhl: mhl.o termsbr.o $(LOCALLIBS)
$(LINK) mhl.o termsbr.o $(LINKLIBS) $(TERMLIB)
** complete copyright information.
*/
+/*
+** This code was originally part of mhn.c. I split it into
+** a separate program (mhbuild.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>
#include <h/signals.h>
#include <h/mhcachesbr.h>
#include <h/utils.h>
+#ifdef TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# ifdef TM_IN_SYS_TIME
+# include <sys/time.h>
+# else
+# include <time.h>
+# endif
+#endif
+
#ifdef HAVE_SYS_WAIT_H
# include <sys/wait.h>
#endif
};
-/* mhbuildsbr.c */
-extern char *tmp; /* directory to place temp files */
+/*
+** Directory to place tmp files. This must
+** be set before these routines are called.
+*/
+char *tmp;
+
+pid_t xpid = 0;
+
+static char prefix[] = "----- =_aaaaaaaaaa";
+
+
+/*
+** prototypes
+*/
+
+/* mhmisc.c */
+int make_intermediates(char *);
+void content_error(char *, CT, char *, ...);
+
+/* mhcachesbr.c */
+int find_cache(CT, int, int *, char *, char *, int);
+
+/* ftpsbr.c */
+int ftp_get(char *, char *, char *, char *, char *, char *, int, int);
+
+/* mhfree.c */
+void free_content(CT);
+void free_ctinfo(CT);
+void free_encoding(CT, int);
+
+/*
+** static prototypes
+*/
+static int init_decoded_content(CT);
+static char *fgetstr(char *, int, FILE *);
+static int user_content(FILE *, char *, char *, CT *);
+static void set_id(CT, int);
+static int compose_content(CT);
+static int scan_content(CT);
+static int build_headers(CT);
+static char *calculate_digest(CT, int);
+static CT build_mime(char *);
+
+
/* mhcachesbr.c */
extern int rcachesw;
static void unlink_done(int) NORETURN;
-/* mhbuildsbr.c */
-CT build_mime(char *);
+/* mhoutsbr.c */
int output_message(CT, char *);
int output_message_fp(CT, FILE *, char*);
exit(status);
}
+
+/*
+** 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().
+*/
+static 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 (!mh_strcasecmp(name, VRSN_FIELD))
+ adios(NULL, "draft shouldn't contain %s: field", VRSN_FIELD);
+
+ /*
+ ** 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;
+ }
+
+ /* get copies of the buffers */
+ np = getcpy(name);
+ vp = getcpy(buf);
+
+ /* 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 */
+ }
+
+ /* Now add the header data to the list */
+ add_header(ct, np, vp);
+
+finish_field:
+ /* if this wasn't the last hdr 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);
+
+ default:
+ adios(NULL, "getfld() returned %d", state);
+ }
+ break;
+ }
+
+ /*
+ ** Now add the MIME-Version header field
+ ** to the list of header fields.
+ */
+ np = getcpy(VRSN_FIELD);
+ 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 = getcpy(infile);
+
+ 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)++;
+ }
+ }
+
+ /* Build the rest of the header field structures */
+ build_headers(ct);
+
+ return ct;
+}
+
+
+/*
+** 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;
+}
+
+
+static char *
+fgetstr(char *s, int n, FILE *stream)
+{
+ char *cp, *ep;
+
+ for (ep = (cp = s) + n; cp < ep; ) {
+ int i;
+
+ if (!fgets(cp, n, stream))
+ return (cp != s ? s : NULL);
+ if (cp == s && *cp != '#')
+ return s;
+
+ cp += (i = strlen(cp)) - 1;
+ if (i <= 1 || *cp-- != '\n' || *cp != '\\')
+ break;
+ *cp = '\0';
+ n -= (i - 2);
+ }
+
+ return s;
+}
+
+
+/*
+** Parse the composition draft for text and directives.
+** Do initial setup of Content structure.
+*/
+
+static int
+user_content(FILE *in, char *file, char *buf, CT *ctp)
+{
+ 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;
+ }
+
+ /* 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;
+ char *cp;
+
+ cp = m_mktemp2(NULL, invo_name, NULL, &out);
+ if (cp == NULL)
+ adios("mhbuild", "unable to create temporary file");
+
+ /* use a temp file to collect the plain text lines */
+ ce->ce_file = getcpy(cp);
+ ce->ce_unlink = 1;
+
+ 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 >= 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;
+ }
+ }
+
+ 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 (!mh_strcasecmp(ci->ci_type, s2i->si_key))
+ break;
+ if (!s2i->si_key && !uprf(ci->ci_type, "X-"))
+ s2i++;
+
+ /*
+ ** 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;
+ }
+
+ 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 (!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 */
+
+ default:
+ if ((ct->c_ctinitfnx = s2i->si_init))
+ (*ct->c_ctinitfnx) (ct);
+ break;
+ }
+
+ /*
+ ** #@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;
+
+ 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;
+ }
+
+ /* 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 = getcpy(cp);
+ 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;
+ }
+
+ /*
+ ** 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 = getcpy(cp);
+ return OK;
+ }
+
+ 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] = seq_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 = getcpy(expandfol(cp));
+ }
+ }
+
+ /* else, use the current folder */
+ if (!folder)
+ folder = getcpy(getcurfol());
+
+ 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 = getcpy(buffer);
+ 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 = getcpy(buffer);
+ if (listsw && stat(ce->ce_file, &st) != NOTOK)
+ ct->c_end = (long) st.st_size;
+ }
+
+ folder_free(mp); /* free folder/message structure */
+ return OK;
+ }
+
+ /*
+ ** #end
+ */
+ if (!mh_strcasecmp(ci->ci_type, "end")) {
+ free_content(ct);
+ *ctp = NULL;
+ return DONE;
+ }
+
+ /*
+ ** #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;
+ }
+
+ 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");
+ 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;
+ }
+
+ /*
+ ** Unknown directive
+ */
+ adios(NULL, "unknown directive \"#%s\"", ci->ci_type);
+ return NOTOK; /* NOT REACHED */
+}
+
+
+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);
+}
+
+
+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
+};
+
+
+/*
+** 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
+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;
+ }
+
+ /* 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;
+
+ sprintf(pp, "%d", partnum);
+ p->c_partno = getcpy(partnam);
+ if (compose_content(p) == NOTOK)
+ return NOTOK;
+ }
+
+ /*
+ ** 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++;
+ }
+ }
+
+ if (listsw) {
+ ct->c_end = (partnum = strlen(prefix) + 2) + 2;
+ if (ct->c_rfc934)
+ ct->c_end += 1;
+
+ for (part = m->mp_parts; part; part = part->mp_next)
+ ct->c_end += part->mp_part->c_end + partnum;
+ }
+ }
+ 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 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("mhbuild", "unable to create temporary file");
+ }
+ ce->ce_file = getcpy(tfile);
+ 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;
+
+ 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--;
+ }
+ }
+
+ 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");
+
+ switch (child_id = fork()) {
+ 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;
+ }
+ break;
+ }
+
+ 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 int
+scan_content(CT ct)
+{
+ 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;
+
+ /*
+ ** 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;
+ }
+
+ /*
+ ** 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;
+ }
+ }
+ }
+
+ /*
+ ** 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;
+ /* no need to keep checking */
+ checklinespace = 0;
+ }
+
+ /*
+ ** 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)==0 &&
+ isdigit(buffer[2 + len])) {
+ boundaryclash = 1;
+ /* no need to keep checking */
+ checkboundary = 0;
+ }
+ }
+ }
+ 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 = getcpy("charset=us-ascii");
+ }
+
+ 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;
+ }
+
+ return (boundaryclash ? NOTOK : OK);
+}
+
+
+/*
+** Scan the content structures, and build header
+** fields that will need to be output into the
+** message.
+*/
+
+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++ = getcpy(buffer), '=');
+ *ap = NULL;
+ *cp++ = '\0';
+ *ep = cp;
+ }
+
+ /*
+ ** 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;
+
+ /*
+ ** output the content type and subtype
+ */
+ np = getcpy(TYPE_FIELD);
+ 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;
+
+ 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 && !mh_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;
+ } else {
+ vp = add(" ", vp);
+ len++;
+ }
+ vp = add(buffer, vp);
+ len += cc;
+ }
+ vp = add("\n", vp);
+ add_header(ct, np, vp);
+
+ /*
+ ** output the Content-ID, unless disabled by -nocontentid
+ */
+ if (contentidsw && ct->c_id) {
+ np = getcpy(ID_FIELD);
+ vp = concat(" ", ct->c_id, NULL);
+ add_header(ct, np, vp);
+ }
+
+ /*
+ ** output the Content-Description
+ */
+ if (ct->c_descr) {
+ np = getcpy(DESCR_FIELD);
+ vp = concat(" ", ct->c_descr, NULL);
+ add_header(ct, np, vp);
+ }
+
+ /*
+ ** output the Content-Disposition
+ */
+ if (ct->c_dispo) {
+ np = getcpy(DISPO_FIELD);
+ vp = concat(" ", ct->c_dispo, 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 = getcpy(MD5_FIELD);
+ 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 */
+ break;
+
+ case CE_8BIT:
+ if (ct->c_type == CT_MESSAGE)
+ adios(NULL, "internal error, invalid encoding");
+
+ np = getcpy(ENCODING_FIELD);
+ 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 = getcpy(ENCODING_FIELD);
+ 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 = getcpy(ENCODING_FIELD);
+ 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 = getcpy(ENCODING_FIELD);
+ 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;
+
+ p = part->mp_part;
+ build_headers(p);
+ }
+ }
+ break;
+
+ case CT_MESSAGE:
+ if (ct->c_subtype == MESSAGE_EXTERNAL) {
+ struct exbody *e;
+
+ e = (struct exbody *) ct->c_ctparams;
+ build_headers(e->eb_content);
+ }
+ 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]);
+ 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;
+}
+++ /dev/null
-/*
-** 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.
-*/
-
-#include <h/mh.h>
-#include <fcntl.h>
-#include <h/signals.h>
-#include <h/md5.h>
-#include <errno.h>
-#include <signal.h>
-#include <h/tws.h>
-#include <h/mime.h>
-#include <h/mhparse.h>
-#include <h/utils.h>
-
-#ifdef TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# ifdef TM_IN_SYS_TIME
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-
-#ifdef HAVE_SYS_WAIT_H
-# include <sys/wait.h>
-#endif
-
-
-extern int debugsw;
-extern int verbosw;
-
-extern int ebcdicsw;
-extern int listsw;
-extern int rfc934sw;
-extern int contentidsw;
-
-extern int endian; /* mhmisc.c */
-
-/* cache policies */
-extern int rcachesw; /* mhcachesbr.c */
-extern int wcachesw; /* mhcachesbr.c */
-
-/*
-** Directory to place tmp files. This must
-** be set before these routines are called.
-*/
-char *tmp;
-
-pid_t xpid = 0;
-
-static char prefix[] = "----- =_aaaaaaaaaa";
-
-
-/* mhmisc.c */
-int make_intermediates(char *);
-void content_error(char *, CT, char *, ...);
-
-/* mhcachesbr.c */
-int find_cache(CT, int, int *, char *, char *, int);
-
-/* ftpsbr.c */
-int ftp_get(char *, char *, char *, char *, char *, char *, int, int);
-
-/* mhfree.c */
-void free_content(CT);
-void free_ctinfo(CT);
-void free_encoding(CT, int);
-
-/*
-** prototypes
-*/
-CT build_mime(char *);
-
-/*
-** static prototypes
-*/
-static int init_decoded_content(CT);
-static char *fgetstr(char *, int, FILE *);
-static int user_content(FILE *, char *, char *, CT *);
-static void set_id(CT, int);
-static int compose_content(CT);
-static int scan_content(CT);
-static int build_headers(CT);
-static char *calculate_digest(CT, int);
-
-
-/*
-** 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 (!mh_strcasecmp(name, VRSN_FIELD))
- adios(NULL, "draft shouldn't contain %s: field", VRSN_FIELD);
-
- /*
- ** 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;
- }
-
- /* get copies of the buffers */
- np = getcpy(name);
- vp = getcpy(buf);
-
- /* 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 */
- }
-
- /* Now add the header data to the list */
- add_header(ct, np, vp);
-
-finish_field:
- /* if this wasn't the last hdr 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);
-
- default:
- adios(NULL, "getfld() returned %d", state);
- }
- break;
- }
-
- /*
- ** Now add the MIME-Version header field
- ** to the list of header fields.
- */
- np = getcpy(VRSN_FIELD);
- 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 = getcpy(infile);
-
- 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)++;
- }
- }
-
- /* Build the rest of the header field structures */
- build_headers(ct);
-
- return ct;
-}
-
-
-/*
-** 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;
-}
-
-
-static char *
-fgetstr(char *s, int n, FILE *stream)
-{
- char *cp, *ep;
-
- for (ep = (cp = s) + n; cp < ep; ) {
- int i;
-
- if (!fgets(cp, n, stream))
- return (cp != s ? s : NULL);
- if (cp == s && *cp != '#')
- return s;
-
- cp += (i = strlen(cp)) - 1;
- if (i <= 1 || *cp-- != '\n' || *cp != '\\')
- break;
- *cp = '\0';
- n -= (i - 2);
- }
-
- return s;
-}
-
-
-/*
-** Parse the composition draft for text and directives.
-** Do initial setup of Content structure.
-*/
-
-static int
-user_content(FILE *in, char *file, char *buf, CT *ctp)
-{
- 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;
- }
-
- /* 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;
- char *cp;
-
- cp = m_mktemp2(NULL, invo_name, NULL, &out);
- if (cp == NULL)
- adios("mhbuildsbr", "unable to create temporary file");
-
- /* use a temp file to collect the plain text lines */
- ce->ce_file = getcpy(cp);
- ce->ce_unlink = 1;
-
- 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 >= 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;
- }
- }
-
- 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 (!mh_strcasecmp(ci->ci_type, s2i->si_key))
- break;
- if (!s2i->si_key && !uprf(ci->ci_type, "X-"))
- s2i++;
-
- /*
- ** 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;
- }
-
- 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 (!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 */
-
- default:
- if ((ct->c_ctinitfnx = s2i->si_init))
- (*ct->c_ctinitfnx) (ct);
- break;
- }
-
- /*
- ** #@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;
-
- 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;
- }
-
- /* 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 = getcpy(cp);
- 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;
- }
-
- /*
- ** 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 = getcpy(cp);
- return OK;
- }
-
- 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] = seq_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 = getcpy(expandfol(cp));
- }
- }
-
- /* else, use the current folder */
- if (!folder)
- folder = getcpy(getcurfol());
-
- 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 = getcpy(buffer);
- 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 = getcpy(buffer);
- if (listsw && stat(ce->ce_file, &st) != NOTOK)
- ct->c_end = (long) st.st_size;
- }
-
- folder_free(mp); /* free folder/message structure */
- return OK;
- }
-
- /*
- ** #end
- */
- if (!mh_strcasecmp(ci->ci_type, "end")) {
- free_content(ct);
- *ctp = NULL;
- return DONE;
- }
-
- /*
- ** #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;
- }
-
- 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");
- 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;
- }
-
- /*
- ** Unknown directive
- */
- adios(NULL, "unknown directive \"#%s\"", ci->ci_type);
- return NOTOK; /* NOT REACHED */
-}
-
-
-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);
-}
-
-
-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
-};
-
-
-/*
-** 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
-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;
- }
-
- /* 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;
-
- sprintf(pp, "%d", partnum);
- p->c_partno = getcpy(partnam);
- if (compose_content(p) == NOTOK)
- return NOTOK;
- }
-
- /*
- ** 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++;
- }
- }
-
- if (listsw) {
- ct->c_end = (partnum = strlen(prefix) + 2) + 2;
- if (ct->c_rfc934)
- ct->c_end += 1;
-
- for (part = m->mp_parts; part; part = part->mp_next)
- ct->c_end += part->mp_part->c_end + partnum;
- }
- }
- 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 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 = getcpy(tfile);
- 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;
-
- 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--;
- }
- }
-
- 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");
-
- switch (child_id = fork()) {
- 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;
- }
- break;
- }
-
- 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 int
-scan_content(CT ct)
-{
- 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;
-
- /*
- ** 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;
- }
-
- /*
- ** 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;
- }
- }
- }
-
- /*
- ** 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;
- /* no need to keep checking */
- checklinespace = 0;
- }
-
- /*
- ** 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)==0 &&
- isdigit(buffer[2 + len])) {
- boundaryclash = 1;
- /* no need to keep checking */
- checkboundary = 0;
- }
- }
- }
- 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 = getcpy("charset=us-ascii");
- }
-
- 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;
- }
-
- return (boundaryclash ? NOTOK : OK);
-}
-
-
-/*
-** Scan the content structures, and build header
-** fields that will need to be output into the
-** message.
-*/
-
-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++ = getcpy(buffer), '=');
- *ap = NULL;
- *cp++ = '\0';
- *ep = cp;
- }
-
- /*
- ** 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;
-
- /*
- ** output the content type and subtype
- */
- np = getcpy(TYPE_FIELD);
- 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;
-
- 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 && !mh_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;
- } else {
- vp = add(" ", vp);
- len++;
- }
- vp = add(buffer, vp);
- len += cc;
- }
- vp = add("\n", vp);
- add_header(ct, np, vp);
-
- /*
- ** output the Content-ID, unless disabled by -nocontentid
- */
- if (contentidsw && ct->c_id) {
- np = getcpy(ID_FIELD);
- vp = concat(" ", ct->c_id, NULL);
- add_header(ct, np, vp);
- }
-
- /*
- ** output the Content-Description
- */
- if (ct->c_descr) {
- np = getcpy(DESCR_FIELD);
- vp = concat(" ", ct->c_descr, NULL);
- add_header(ct, np, vp);
- }
-
- /*
- ** output the Content-Disposition
- */
- if (ct->c_dispo) {
- np = getcpy(DISPO_FIELD);
- vp = concat(" ", ct->c_dispo, 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 = getcpy(MD5_FIELD);
- 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 */
- break;
-
- case CE_8BIT:
- if (ct->c_type == CT_MESSAGE)
- adios(NULL, "internal error, invalid encoding");
-
- np = getcpy(ENCODING_FIELD);
- 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 = getcpy(ENCODING_FIELD);
- 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 = getcpy(ENCODING_FIELD);
- 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 = getcpy(ENCODING_FIELD);
- 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;
-
- p = part->mp_part;
- build_headers(p);
- }
- }
- break;
-
- case CT_MESSAGE:
- if (ct->c_subtype == MESSAGE_EXTERNAL) {
- struct exbody *e;
-
- e = (struct exbody *) ct->c_ctparams;
- build_headers(e->eb_content);
- }
- 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]);
- 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;
-}
extern int debugsw;
-extern pid_t xpid; /* mhshowsbr.c or mhbuildsbr.c */
+extern pid_t xpid; /* mhshowsbr.c or mhbuild.c */
/* cache policies */
int rcachesw = CACHE_ASK;
char *cache_private;
-/* mhparse.c (OR) mhbuildsbr.c */
+/* mhparse.c (OR) mhbuild.c */
int pidcheck (int);
/* mhmisc.c */
projects / mmh / commitdiff
