-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 (!mh_strcasecmp (*ap, "access-type")) {
- struct str2init *s2i;
- CT p = e->eb_content;
-
- for (s2i = str2methods; s2i->si_key; s2i++)
- if (!mh_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 (!mh_strcasecmp (*ap, "name")) {
- e->eb_name = *ep;
- continue;
- }
- if (!mh_strcasecmp (*ap, "permission")) {
- e->eb_permission = *ep;
- continue;
- }
- if (!mh_strcasecmp (*ap, "site")) {
- e->eb_site = *ep;
- continue;
- }
- if (!mh_strcasecmp (*ap, "directory")) {
- e->eb_dir = *ep;
- continue;
- }
- if (!mh_strcasecmp (*ap, "mode")) {
- e->eb_mode = *ep;
- continue;
- }
- if (!mh_strcasecmp (*ap, "size")) {
- sscanf (*ep, "%lu", &e->eb_size);
- continue;
- }
- if (!mh_strcasecmp (*ap, "server")) {
- e->eb_server = *ep;
- continue;
- }
- if (!mh_strcasecmp (*ap, "subject")) {
- e->eb_subject = *ep;
- continue;
- }
- if (composing && !mh_strcasecmp (*ap, "body")) {
- e->eb_body = getcpy (*ep);
- continue;
- }
- }
-
- 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 (!mh_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;
-}
-
-
-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)
-{
- 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;
-}
-
-
-/*
- * 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 int
-InitBase64 (CT ct)
-{
- return init_encoding (ct, openBase64);
-}
-
-
-static int
-openBase64 (CT ct, char **file)
-{
- int bitno, cc, digested;
- int fd, len, skip;
- unsigned long bits;
- unsigned char value, *b, *b1, *b2, *b3;
- unsigned char *cp, *ep;
- char 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;
-
- 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;
-
- 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 (ferror (ce->ce_fp)) {
- content_error (ce->ce_file, ct,
- "error writing to");
- goto clean_up;
- }
- 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 (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;
- unsigned 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;
- }
- 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);
-
- quoted = 0;
-#ifdef lint
- mask = 0;
-#endif
-
- fseek (ct->c_fp, ct->c_begin, SEEK_SET);
- while (len > 0) {
- char *dp;
-
- if (fgets (buffer, sizeof(buffer) - 1, ct->c_fp) == NULL) {
- content_error (NULL, ct, "premature eof");
- goto clean_up;
- }
-
- if ((cc = strlen (buffer)) > len)
- cc = len;
- len -= cc;
-
- 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;
-
- default:
- if (!isxdigit (*cp))
- goto invalid_hex;
- mask = hex2nib[*cp & 0x7f];
- quoted = 2;
- continue;
- }
- }
-
- 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;
-
- case '=':
- if (*++cp != '\n') {
- quoted = 1;
- cp--;
- }
- 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;
-}
-
-
-/*
- * 7BIT
- */
-
-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)
-{
- 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;
- }
-
- 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);
- if (ct->c_dispo)
- fprintf (ce->ce_fp, "%s:%s", DISPO_FIELD, ct->c_dispo);
- 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;
-}
-
-
-/*
- * External
- */
-
-static int
-openExternal (CT ct, CT cb, CE ce, char **file, int *fd)
-{
- char cachefile[BUFSIZ];
-
- if (ce->ce_fp) {
- fseek (ce->ce_fp, 0L, SEEK_SET);
- goto ready_already;
- }
-
- 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;
-
-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 || mh_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);
- }
- 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);
-}
-
-
-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
-
- 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 || mh_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 && !mh_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;
- }
- 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 && !mh_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;
-
- 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);
- }
- fclose (fp);
- }
- umask (mask);
- }
- }
-
- 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);
-}
-
-
-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);
-}
-
-
-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;
-
- /* 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 >= 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 = 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;
- }
-
- /*
- * 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 (!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);
- }
- }
-
- /* 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;