X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/e2eebc77cc570f77d906bc0cc6890092068468cb..fb6b8301237bcdd72bb86d34af68f378a07e4d70:/uip/mhparse.c diff --git a/uip/mhparse.c b/uip/mhparse.c index a3a80f9a..85c32924 100644 --- a/uip/mhparse.c +++ b/uip/mhparse.c @@ -9,7 +9,6 @@ #include #include -#include #include #include #include @@ -35,13 +34,23 @@ int checksw = 0; /* check Content-MD5 field */ * in a multipart. * 2) Suppress the warning about bogus multipart content, and report it. * 3) Suppress the warning about extraneous trailing ';' in header parameter - * lists, and report it. + * lists. */ int skip_mp_cte_check; int suppress_bogus_mp_content_warning; int bogus_mp_content; int suppress_extraneous_trailing_semicolon_warning; -int extraneous_trailing_semicolon; + +/* + * By default, suppress warning about multiple MIME-Version header fields. + */ +int suppress_multiple_mime_version_warning = 1; + +/* list of preferred type/subtype pairs, for -prefer */ +char *preferred_types[NPREFS], + *preferred_subtypes[NPREFS]; +int npreferred; + /* * Structures for TEXT messages @@ -104,7 +113,7 @@ static struct k2v EncodingType[] = { int find_cache (CT, int, int *, char *, char *, int); /* mhmisc.c */ -int part_ok (CT, int); +int part_ok (CT); int type_ok (CT, int); void content_error (char *, CT, char *, ...); @@ -121,6 +130,7 @@ static int InitGeneric (CT); static int InitText (CT); static int InitMultiPart (CT); static void reverse_parts (CT); +static void prefer_parts(CT ct); static int InitMessage (CT); static int InitApplication (CT); static int init_encoding (CT, OpenCEFunc); @@ -144,7 +154,6 @@ static int openURL (CT, char **); static int parse_header_attrs (const char *, const char *, char **, PM *, PM *, char **); static size_t param_len(PM, int, size_t, int *, int *, size_t *); -static size_t encode_param(PM, char *, size_t, size_t, size_t, int); static size_t normal_param(PM, char *, size_t, size_t, size_t); static int get_dispo (char *, CT, int); @@ -201,6 +210,8 @@ parse_mime (char *file) CT ct; size_t n; + bogus_mp_content = 0; + /* * Check if file is actually standard input */ @@ -211,7 +222,7 @@ parse_mime (char *file) get_temp_dir()); return NULL; } - file = add (tfile, NULL); + file = mh_xstrdup(tfile); while ((n = fread(buffer, 1, sizeof(buffer), stdin)) > 0) { if (fwrite(buffer, 1, n, fp) != n) { @@ -288,9 +299,7 @@ get_content (FILE *in, char *file, int toplevel) m_getfld_state_t gstate = 0; /* allocate the content structure */ - if (!(ct = (CT) mh_xcalloc (1, sizeof(*ct)))) - adios (NULL, "out of memory"); - + NEW0(ct); ct->c_fp = in; ct->c_file = add (file, NULL); ct->c_begin = ftell (ct->c_fp) + 1; @@ -308,8 +317,8 @@ get_content (FILE *in, char *file, int toplevel) compnum++; /* get copies of the buffers */ - np = add (name, NULL); - vp = add (buf, NULL); + np = mh_xstrdup(name); + vp = mh_xstrdup(buf); /* if necessary, get rest of field */ while (state == FLDPLUS) { @@ -326,7 +335,15 @@ get_content (FILE *in, char *file, int toplevel) continue; case BODY: - ct->c_begin = ftell (in) - strlen (buf); + if (name[0] == ':') { + /* Special case: no blank line between header and body. The + file position indicator is on the newline at the end of the + line, but it needs to be one prior to the beginning of the + line. So subtract the length of the line, bufsz, plus 1. */ + ct->c_begin = ftell (in) - (bufsz + 1); + } else { + ct->c_begin = ftell (in) - (bufsz - 1); + } break; case FILEEOF: @@ -359,16 +376,12 @@ get_content (FILE *in, char *file, int toplevel) if (!strcasecmp (hp->name, VRSN_FIELD)) { int ucmp; char c, *cp, *dp; + char *vrsn; - if (ct->c_vrsn) { - advise (NULL, "message %s has multiple %s: fields", - ct->c_file, VRSN_FIELD); - goto next_header; - } - ct->c_vrsn = add (hp->value, NULL); + vrsn = add (hp->value, NULL); /* Now, cleanup this field */ - cp = ct->c_vrsn; + cp = vrsn; while (isspace ((unsigned char) *cp)) cp++; @@ -395,6 +408,14 @@ get_content (FILE *in, char *file, int toplevel) admonish (NULL, "message %s has unknown value for %s: field (%s)", ct->c_file, VRSN_FIELD, cp); } + if (!ct->c_vrsn) { + ct->c_vrsn = vrsn; + } else { + if (! suppress_multiple_mime_version_warning) + advise (NULL, "message %s has multiple %s: fields", + ct->c_file, VRSN_FIELD); + free(vrsn); + } } else if (!strcasecmp (hp->name, TYPE_FIELD)) { /* Get Content-Type field */ @@ -573,7 +594,7 @@ add_header (CT ct, char *name, char *value) HF hp; /* allocate header field structure */ - hp = mh_xmalloc (sizeof(*hp)); + NEW(hp); /* link data into header structure */ hp->name = name; @@ -633,19 +654,15 @@ get_ctinfo (char *cp, CT ct, int magic) for (dp = cp; istoken (*dp); dp++) continue; c = *dp, *dp = '\0'; - ci->ci_type = add (cp, NULL); /* store content type */ + ci->ci_type = mh_xstrdup(cp); /* store content type */ *dp = c, cp = dp; if (!*ci->ci_type) { - advise (NULL, "invalid %s: field in message %s (empty type)", + advise (NULL, "invalid %s: field in message %s (empty type)", TYPE_FIELD, ct->c_file); return NOTOK; } - - /* down case the content type string */ - for (dp = ci->ci_type; *dp; dp++) - if (isalpha((unsigned char) *dp) && isupper ((unsigned char) *dp)) - *dp = tolower ((unsigned char) *dp); + to_lower(ci->ci_type); while (isspace ((unsigned char) *cp)) cp++; @@ -656,7 +673,7 @@ get_ctinfo (char *cp, CT ct, int magic) if (*cp != '/') { if (!magic) - ci->ci_subtype = add ("", NULL); + ci->ci_subtype = mh_xstrdup(""); goto magic_skip; } @@ -671,7 +688,7 @@ get_ctinfo (char *cp, CT ct, int magic) for (dp = cp; istoken (*dp); dp++) continue; c = *dp, *dp = '\0'; - ci->ci_subtype = add (cp, NULL); /* store the content subtype */ + ci->ci_subtype = mh_xstrdup(cp); /* store the content subtype */ *dp = c, cp = dp; if (!*ci->ci_subtype) { @@ -680,11 +697,7 @@ get_ctinfo (char *cp, CT ct, int magic) TYPE_FIELD, ct->c_file, ci->ci_type); return NOTOK; } - - /* down case the content subtype string */ - for (dp = ci->ci_subtype; *dp; dp++) - if (isalpha((unsigned char) *dp) && isupper ((unsigned char) *dp)) - *dp = tolower ((unsigned char) *dp); + to_lower(ci->ci_subtype); magic_skip: while (isspace ((unsigned char) *cp)) @@ -704,10 +717,8 @@ magic_skip: * Get any given in buffer */ if (magic && *cp == '<') { - if (ct->c_id) { - free (ct->c_id); - ct->c_id = NULL; - } + mh_xfree(ct->c_id); + ct->c_id = NULL; if (!(dp = strchr(ct->c_id = ++cp, '>'))) { advise (NULL, "invalid ID in message %s", ct->c_file); return NOTOK; @@ -825,7 +836,7 @@ magic_skip: */ if (*cp) { if (magic) { - ci->ci_magic = add (cp, NULL); + ci->ci_magic = mh_xstrdup(cp); /* If there is a Content-Disposition header and it doesn't have a *filename=, extract it from the magic contents. @@ -892,7 +903,7 @@ get_dispo (char *cp, CT ct, int buildflag) for (dp = cp; istoken (*dp); dp++) continue; c = *dp, *dp = '\0'; - ct->c_dispo_type = add (cp, NULL); /* store disposition type */ + ct->c_dispo_type = mh_xstrdup(cp); /* store disposition type */ *dp = c, cp = dp; if (*cp == '(' && get_comment (ct->c_file, DISPO_FIELD, &cp, NULL) == NOTOK) @@ -969,7 +980,7 @@ invalid: *commentp = concat (dp, " ", buffer, NULL); free (dp); } else { - *commentp = add (buffer, NULL); + *commentp = mh_xstrdup(buffer); } } @@ -1019,8 +1030,7 @@ InitText (CT ct) ct->c_subtype = ct_str_subtype (CT_TEXT, ci->ci_subtype); /* allocate text character set structure */ - if ((t = (struct text *) mh_xcalloc (1, sizeof(*t))) == NULL) - adios (NULL, "out of memory"); + NEW0(t); ct->c_ctparams = (void *) t; /* scan for charset parameter */ @@ -1046,7 +1056,7 @@ InitText (CT ct) if (chset != NULL && !check_charset (chset, strlen (chset))) { snprintf (buffer, sizeof(buffer), "%s-charset-%s", invo_name, chset); if ((cp = context_find (buffer))) - ct->c_termproc = getcpy (cp); + ct->c_termproc = mh_xstrdup(cp); } return OK; @@ -1082,7 +1092,7 @@ InitMultiPart (CT ct) ct->c_encoding != CE_8BIT && ct->c_encoding != CE_BINARY) { /* Copy the Content-Transfer-Encoding header field body so we can remove any trailing whitespace and leading blanks from it. */ - char *cte = add (ct->c_celine ? ct->c_celine : "(null)", NULL); + char *cte = mh_xstrdup(ct->c_celine ? ct->c_celine : "(null)"); bp = cte + strlen (cte) - 1; while (bp >= cte && isspace ((unsigned char) *bp)) *bp-- = '\0'; @@ -1090,8 +1100,9 @@ InitMultiPart (CT ct) admonish (NULL, "\"%s/%s\" type in message %s must be encoded in\n" - "7bit, 8bit, or binary, per RFC 2045 (6.4). One workaround " - "is to\nmanually edit the file and change the \"%s\"\n" + "7bit, 8bit, or binary, per RFC 2045 (6.4). " + "mhfixmsg -fixcte can fix it, or\n" + "manually edit the file and change the \"%s\"\n" "Content-Transfer-Encoding to one of those. For now", ci->ci_type, ci->ci_subtype, ct->c_file, bp); free (cte); @@ -1123,8 +1134,7 @@ InitMultiPart (CT ct) } /* allocate primary structure for multipart info */ - if ((m = (struct multipart *) mh_xcalloc (1, sizeof(*m))) == NULL) - adios (NULL, "out of memory"); + NEW0(m); ct->c_ctparams = (void *) m; /* check if boundary parameter contains only whitespace characters */ @@ -1168,8 +1178,7 @@ InitMultiPart (CT ct) if (strcmp (bufp + 2, m->mp_start)) continue; next_part: - if ((part = (struct part *) mh_xcalloc (1, sizeof(*part))) == NULL) - adios (NULL, "out of memory"); + NEW0(part); *next = part; next = &part->mp_next; @@ -1195,10 +1204,9 @@ end_part: if (inout) goto next_part; goto last_part; - } else { - if (strcmp (bufp + 2, m->mp_stop) == 0) - goto end_part; } + if (strcmp (bufp + 2, m->mp_stop) == 0) + goto end_part; } } @@ -1217,14 +1225,16 @@ end_part: continue; *next = NULL; free_content (p); - free ((char *) part); + free(part); } } last_part: /* reverse the order of the parts for multipart/alternative */ - if (ct->c_subtype == MULTI_ALTERNATE) + if (ct->c_subtype == MULTI_ALTERNATE) { reverse_parts (ct); + prefer_parts (ct); + } /* * label all subparts with part number, and @@ -1247,7 +1257,7 @@ last_part: p = part->mp_part; sprintf (pp, "%d", partnum); - p->c_partno = add (partnam, NULL); + p->c_partno = mh_xstrdup(partnam); /* initialize the content of the subparts */ if (p->c_ctinitfnx && (*p->c_ctinitfnx) (p) == NOTOK) { @@ -1270,9 +1280,15 @@ last_part: /* - * reverse the order of the parts of a multipart/alternative + * reverse the order of the parts of a multipart/alternative, + * presumably to put the "most favored" alternative first, for + * ease of choosing/displaying it later on. from a mail message on + * nmh-workers, from kenh: + * "Stock" MH 6.8.5 did not have a reverse_parts() function, but I + * see code in mhn that did the same thing... Acccording to the RCS + * logs, that code was around from the initial checkin of mhn.c by + * John Romine in 1992, which is as far back as we have." */ - static void reverse_parts (CT ct) { @@ -1289,6 +1305,60 @@ reverse_parts (CT ct) } } +static void +move_preferred_part (CT ct, char *type, char *subtype) +{ + struct multipart *m = (struct multipart *) ct->c_ctparams; + struct part *part, *prev, *head, *nhead, *ntail; + struct part h, n; + CI ci; + + /* move the matching part(s) to the head of the list: walk the + * list of parts, move matching parts to a new list (maintaining + * their order), and finally, concatenate the old list onto the + * new. + */ + + head = &h; + nhead = &n; + + head->mp_next = m->mp_parts; + nhead->mp_next = NULL; + ntail = nhead; + + prev = head; + part = head->mp_next; + while (part != NULL) { + ci = &part->mp_part->c_ctinfo; + if (!strcasecmp(ci->ci_type, type) && + (!subtype || !strcasecmp(ci->ci_subtype, subtype))) { + prev->mp_next = part->mp_next; + part->mp_next = NULL; + ntail->mp_next = part; + ntail = part; + part = prev->mp_next; + } else { + prev = part; + part = prev->mp_next; + } + } + ntail->mp_next = head->mp_next; + m->mp_parts = nhead->mp_next; + +} + +/* + * move parts that match the user's preferences (-prefer) to the head + * of the line. process preferences in reverse so first one given + * ends up first in line + */ +static void +prefer_parts(CT ct) +{ + int i; + for (i = npreferred-1; i >= 0; i--) + move_preferred_part(ct, preferred_types[i], preferred_subtypes[i]); +} @@ -1346,8 +1416,7 @@ InitMessage (CT ct) PM pm; struct partial *p; - if ((p = (struct partial *) mh_xcalloc (1, sizeof(*p))) == NULL) - adios (NULL, "out of memory"); + NEW0(p); ct->c_ctparams = (void *) p; /* scan for parameters "id", "number", and "total" */ @@ -1395,8 +1464,7 @@ invalid_param: CT p; FILE *fp; - if ((e = (struct exbody *) mh_xcalloc (1, sizeof(*e))) == NULL) - adios (NULL, "out of memory"); + NEW0(e); ct->c_ctparams = (void *) e; if (!ct->c_fp @@ -1420,14 +1488,14 @@ invalid_param: && p->c_ceopenfnx == openMail) { int cc, size; char *bp; - + if ((size = ct->c_end - p->c_begin) <= 0) { if (!e->eb_subject) content_error (NULL, ct, "empty body for access-type=mail-server"); goto no_body; } - + e->eb_body = bp = mh_xmalloc ((unsigned) size); fseek (p->c_fp, p->c_begin, SEEK_SET); while (size > 0) @@ -1636,8 +1704,7 @@ size_encoding (CT ct) if (ce->ce_file) { if (stat (ce->ce_file, &st) != NOTOK) return (long) st.st_size; - else - return 0L; + return 0L; } if (ct->c_encoding == CE_EXTERNAL) @@ -1661,26 +1728,6 @@ size_encoding (CT ct) * 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) { @@ -1691,15 +1738,15 @@ InitBase64 (CT ct) static int openBase64 (CT ct, char **file) { - int bitno, cc, digested; - int fd, len, skip, own_ct_fp = 0, text = ct->c_type == CT_TEXT; - uint32_t bits; - unsigned char value, b; - char *cp, *ep, buffer[BUFSIZ]; + ssize_t cc, len; + int fd, own_ct_fp = 0; + char *cp, *buffer = NULL; /* sbeck -- handle suffixes */ CI ci; CE ce = &ct->c_cefile; - MD5_CTX mdContext; + unsigned char *decoded; + size_t decoded_len; + unsigned char digest[16]; if (ce->ce_fp) { fseek (ce->ce_fp, 0L, SEEK_SET); @@ -1717,7 +1764,7 @@ openBase64 (CT ct, char **file) if (*file == NULL) { ce->ce_unlink = 1; } else { - ce->ce_file = add (*file, NULL); + ce->ce_file = mh_xstrdup(*file); ce->ce_unlink = 0; } @@ -1739,7 +1786,7 @@ openBase64 (CT ct, char **file) adios(NULL, "unable to create temporary file in %s", get_temp_dir()); } - ce->ce_file = add (tempfile, NULL); + ce->ce_file = mh_xstrdup(tempfile); } if ((ce->ce_fp = fopen (ce->ce_file, "w+")) == NULL) { @@ -1750,6 +1797,8 @@ openBase64 (CT ct, char **file) if ((len = ct->c_end - ct->c_begin) < 0) adios (NULL, "internal error(1)"); + buffer = mh_xmalloc (len + 1); + if (! ct->c_fp) { if ((ct->c_fp = fopen (ct->c_file, "r")) == NULL) { content_error (ct->c_file, ct, "unable to open for reading"); @@ -1757,17 +1806,11 @@ openBase64 (CT ct, char **file) } own_ct_fp = 1; } - - 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); + cp = buffer; while (len > 0) { - switch (cc = read (fd, buffer, sizeof(buffer) - 1)) { + switch (cc = read (fd, cp, len)) { case NOTOK: content_error (ct->c_file, ct, "error reading from"); goto clean_up; @@ -1780,75 +1823,41 @@ openBase64 (CT ct, char **file) if (cc > len) cc = len; len -= cc; - - for (ep = (cp = buffer) + cc; cp < ep; cp++) { - switch (*cp) { - default: - if (isspace ((unsigned char) *cp)) - break; - if (skip || (((unsigned char) *cp) & 0x80) - || (value = b642nib[((unsigned char) *cp) & 0x7f]) > 0x3f) { - if (debugsw) { - fprintf (stderr, "*cp=0x%x pos=%ld skip=%d\n", - (unsigned char) *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) { - b = (bits >> 16) & 0xff; - if (!text || b != '\r') - putc ((char) b, ce->ce_fp); - if (digested) - MD5Update (&mdContext, &b, 1); - if (skip < 2) { - b = (bits >> 8) & 0xff; - if (! text || b != '\r') - putc ((char) b, ce->ce_fp); - if (digested) - MD5Update (&mdContext, &b, 1); - if (skip < 1) { - b = bits & 0xff; - if (! text || b != '\r') - putc ((char) b, ce->ce_fp); - if (digested) - MD5Update (&mdContext, &b, 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; - } - } - } + cp += cc; + } } - if (bitno != 18) { - if (debugsw) - fprintf (stderr, "premature ending (bitno %d)\n", bitno); + /* decodeBase64() requires null-terminated input. */ + *cp = '\0'; - content_error (NULL, ct, "invalid BASE64 encoding"); - goto clean_up; + if (decodeBase64 (buffer, &decoded, &decoded_len, ct->c_type == CT_TEXT, + ct->c_digested ? digest : NULL) == OK) { + size_t i; + unsigned char *decoded_p = decoded; + for (i = 0; i < decoded_len; ++i) { + putc (*decoded_p++, ce->ce_fp); + } + free(decoded); + if (ferror (ce->ce_fp)) { + content_error (ce->ce_file, ct, "error writing to"); + goto clean_up; + } + + if (ct->c_digested) { + if (memcmp(digest, 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"); + } + } + } + } else { + goto clean_up; } -self_delimiting: fseek (ct->c_fp, 0L, SEEK_SET); if (fflush (ce->ce_fp)) { @@ -1856,19 +1865,6 @@ self_delimiting: 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: @@ -1877,6 +1873,7 @@ ready_to_go: fclose (ct->c_fp); ct->c_fp = NULL; } + free (buffer); return fileno (ce->ce_fp); clean_up: @@ -1885,6 +1882,7 @@ clean_up: ct->c_fp = NULL; } free_encoding (ct, 0); + free (buffer); return NOTOK; } @@ -1902,18 +1900,18 @@ static char hex2nib[0x80] = { 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, 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, 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 +static int InitQuoted (CT ct) { return init_encoding (ct, openQuoted); @@ -1950,7 +1948,7 @@ openQuoted (CT ct, char **file) if (*file == NULL) { ce->ce_unlink = 1; } else { - ce->ce_file = add (*file, NULL); + ce->ce_file = mh_xstrdup(*file); ce->ce_unlink = 0; } @@ -1972,7 +1970,7 @@ openQuoted (CT ct, char **file) adios(NULL, "unable to create temporary file in %s", get_temp_dir()); } - ce->ce_file = add (tempfile, NULL); + ce->ce_file = mh_xstrdup(tempfile); } if ((ce->ce_fp = fopen (ce->ce_file, "w+")) == NULL) { @@ -2170,7 +2168,7 @@ open7Bit (CT ct, char **file) if (*file == NULL) { ce->ce_unlink = 1; } else { - ce->ce_file = add (*file, NULL); + ce->ce_file = mh_xstrdup(*file); ce->ce_unlink = 0; } @@ -2192,7 +2190,7 @@ open7Bit (CT ct, char **file) adios(NULL, "unable to create temporary file in %s", get_temp_dir()); } - ce->ce_file = add (tempfile, NULL); + ce->ce_file = mh_xstrdup(tempfile); } if ((ce->ce_fp = fopen (ce->ce_file, "w+")) == NULL) { @@ -2325,12 +2323,11 @@ openExternal (CT ct, CT cb, CE ce, char **file, int *fd) 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_file = mh_xstrdup(cachefile); ce->ce_unlink = 0; goto ready_already; - } else { - admonish (cachefile, "unable to fopen for reading"); } + admonish (cachefile, "unable to fopen for reading"); } *fd = fileno (ce->ce_fp); @@ -2377,7 +2374,7 @@ openFile (CT ct, char **file) return NOTOK; } - ce->ce_file = getcpy (e->eb_name); + ce->ce_file = mh_xstrdup(e->eb_name); ce->ce_unlink = 0; if ((ce->ce_fp = fopen (ce->ce_file, "r")) == NULL) { @@ -2509,7 +2506,7 @@ openFTP (CT ct, char **file) /* * Now, check the answer */ - if (!getanswer (buffer)) + if (!read_yes_or_no_if_tty (buffer)) return NOTOK; if (e->eb_flags) { @@ -2518,7 +2515,7 @@ openFTP (CT ct, char **file) LocalName (1)); pass = buffer; } else { - ruserpass (e->eb_site, &username, &password); + ruserpass (e->eb_site, &username, &password, 0); user = username; pass = password; } @@ -2536,16 +2533,16 @@ openFTP (CT ct, char **file) } if (*file) - ce->ce_file = add (*file, NULL); + ce->ce_file = mh_xstrdup(*file); else if (caching) - ce->ce_file = add (cachefile, NULL); + ce->ce_file = mh_xstrdup(cachefile); else { char *tempfile; if ((tempfile = m_mktemp2(NULL, invo_name, NULL, NULL)) == NULL) { adios(NULL, "unable to create temporary file in %s", get_temp_dir()); } - ce->ce_file = add (tempfile, NULL); + ce->ce_file = mh_xstrdup(tempfile); } if ((ce->ce_fp = fopen (ce->ce_file, "w+")) == NULL) { @@ -2696,7 +2693,7 @@ openMail (CT ct, char **file) e->eb_subject ? e->eb_subject : e->eb_body); /* Now, check answer */ - if (!getanswer (buffer)) + if (!read_yes_or_no_if_tty (buffer)) return NOTOK; vecp = 0; @@ -2734,10 +2731,10 @@ openMail (CT ct, char **file) adios(NULL, "unable to create temporary file in %s", get_temp_dir()); } - ce->ce_file = add (tempfile, NULL); + ce->ce_file = mh_xstrdup(tempfile); ce->ce_unlink = 1; } else { - ce->ce_file = add (*file, NULL); + ce->ce_file = mh_xstrdup(*file); ce->ce_unlink = 0; } @@ -2748,9 +2745,8 @@ openMail (CT ct, char **file) /* showproc is for mhshow and mhstore, though mhlist -debug * prints it, too. */ - if (ct->c_showproc) - free (ct->c_showproc); - ct->c_showproc = add ("true", NULL); + mh_xfree(ct->c_showproc); + ct->c_showproc = mh_xstrdup("true"); fseek (ce->ce_fp, 0L, SEEK_SET); *file = ce->ce_file; @@ -2817,16 +2813,16 @@ openURL (CT ct, char **file) } if (*file) - ce->ce_file = add(*file, NULL); + ce->ce_file = mh_xstrdup(*file); else if (caching) - ce->ce_file = add(cachefile, NULL); + ce->ce_file = mh_xstrdup(cachefile); else { char *tempfile; if ((tempfile = m_mktemp2(NULL, invo_name, NULL, NULL)) == NULL) { adios(NULL, "unable to create temporary file in %s", get_temp_dir()); } - ce->ce_file = add (tempfile, NULL); + ce->ce_file = mh_xstrdup(tempfile); } if ((ce->ce_fp = fopen(ce->ce_file, "w+")) == NULL) { @@ -2894,79 +2890,44 @@ openURL (CT ct, char **file) return fd; } + +/* + * Stores MD5 digest (in cp, from Content-MD5 header) in ct->c_digest. It + * has to be base64 decoded. + */ static int readDigest (CT ct, char *cp) { - int bitno, skip; - uint32_t bits; - char *bp = cp; - unsigned char *dp, value, *ep; - - bitno = 18; - bits = 0L; - skip = 0; - - for (ep = (dp = ct->c_digest) - + sizeof(ct->c_digest) / sizeof(ct->c_digest[0]); *cp; cp++) - switch (*cp) { - default: - if (skip - || (*cp & 0x80) - || (value = b642nib[*cp & 0x7f]) > 0x3f) { - if (debugsw) - fprintf (stderr, "invalid BASE64 encoding\n"); - return NOTOK; - } + unsigned char *digest; - bits |= value << bitno; -test_end: - if ((bitno -= 6) < 0) { - if (dp + (3 - skip) > ep) - goto invalid_digest; - *dp++ = (bits >> 16) & 0xff; - if (skip < 2) { - *dp++ = (bits >> 8) & 0xff; - if (skip < 1) - *dp++ = bits & 0xff; - } - bitno = 18; - bits = 0L; - skip = 0; - } - break; + size_t len; + if (decodeBase64 (cp, &digest, &len, 0, NULL) == OK) { + const size_t maxlen = sizeof ct->c_digest / sizeof ct->c_digest[0]; - case '=': - if (++skip > 3) - goto self_delimiting; - goto test_end; - } - if (bitno != 18) { - if (debugsw) - fprintf (stderr, "premature ending (bitno %d)\n", bitno); + if (strlen ((char *) digest) <= maxlen) { + memcpy (ct->c_digest, digest, maxlen); - return NOTOK; - } -self_delimiting: - if (dp != ep) { -invalid_digest: - if (debugsw) { - while (*cp) - cp++; - fprintf (stderr, "invalid MD5 digest (got %d octets)\n", - (int)(cp - bp)); - } + if (debugsw) { + size_t i; - return NOTOK; - } + fprintf (stderr, "MD5 digest="); + for (i = 0; i < maxlen; ++i) { + fprintf (stderr, "%02x", ct->c_digest[i] & 0xff); + } + fprintf (stderr, "\n"); + } + + return OK; + } + if (debugsw) { + fprintf (stderr, "invalid MD5 digest (got %d octets)\n", + (int) strlen ((char *) digest)); + } - if (debugsw) { - fprintf (stderr, "MD5 digest="); - for (dp = ct->c_digest; dp < ep; dp++) - fprintf (stderr, "%02x", *dp & 0xff); - fprintf (stderr, "\n"); + return NOTOK; } - return OK; + return NOTOK; } @@ -3326,14 +3287,12 @@ parse_header_attrs (const char *filename, const char *fieldname, "parameter list", filename, fieldname); } - extraneous_trailing_semicolon = 1; return DONE; } /* down case the attribute name */ for (dp = cp; istoken ((unsigned char) *dp); dp++) - if (isalpha((unsigned char) *dp) && isupper ((unsigned char) *dp)) - *dp = tolower ((unsigned char) *dp); + *dp = tolower ((unsigned char) *dp); for (up = dp; isspace ((unsigned char) *dp);) dp++; @@ -3442,8 +3401,7 @@ parse_header_attrs (const char *filename, const char *fieldname, "field\n%*s(parameter %s)", filename, fieldname, strlen(invo_name) + 2, "", nameptr); free(nameptr); - if (charset) - free(charset); + mh_xfree(charset); return NOTOK; } @@ -3468,10 +3426,8 @@ parse_header_attrs (const char *filename, const char *fieldname, filename, fieldname, strlen(invo_name) + 2, "", nameptr); free(nameptr); - if (charset) - free(charset); - if (lang) - free(lang); + mh_xfree(charset); + mh_xfree(lang); return NOTOK; } vp += 2; @@ -3514,10 +3470,8 @@ bad_quote: filename, fieldname, strlen(invo_name) + 2, "", nameptr); free(nameptr); - if (charset) - free(charset); - if (lang) - free(lang); + mh_xfree(charset); + mh_xfree(lang); return NOTOK; case '"': break; @@ -3569,13 +3523,15 @@ bad_quote: if (partial) { for (pp = phead; pp != NULL; pp = pp->next) { - if (strcasecmp(nameptr, pp->name) == 0) + if (strcasecmp(nameptr, pp->name) == 0) { + free (nameptr); + nameptr = pp->name; break; + } } if (pp == NULL) { - pp = mh_xmalloc(sizeof(*pp)); - memset(pp, 0, sizeof(*pp)); + NEW0(pp); pp->name = nameptr; pp->next = phead; phead = pp; @@ -3585,8 +3541,7 @@ bad_quote: * Insert this into the section linked list */ - sp = mh_xmalloc(sizeof(*sp)); - memset(sp, 0, sizeof(*sp)); + NEW0(sp); sp->value = valptr; sp->index = index; sp->len = len; @@ -3601,7 +3556,6 @@ bad_quote: "%s's %s: field\n%*s(parameter %s)", sp->index, filename, fieldname, strlen(invo_name) + 2, "", nameptr); - free (nameptr); return NOTOK; } if (sp2->index < sp->index && @@ -3617,7 +3571,6 @@ bad_quote: "param in message %s's %s: field\n%*s(parameter %s)", filename, fieldname, strlen(invo_name) + 2, "", nameptr); - free (nameptr); return NOTOK; } } @@ -3627,11 +3580,9 @@ bad_quote: */ if (index == 0 && encoded) { - if (pp->charset) - free(pp->charset); + mh_xfree(pp->charset); pp->charset = charset; - if (pp->lang) - free(pp->lang); + mh_xfree(pp->lang); pp->lang = lang; } } else { @@ -3702,7 +3653,7 @@ content_charset (CT ct) { ret_charset = get_param(ct->c_ctinfo.ci_first_pm, "charset", '?', 0); - return ret_charset ? ret_charset : getcpy ("US-ASCII"); + return ret_charset ? ret_charset : mh_xstrdup("US-ASCII"); } @@ -3731,8 +3682,7 @@ output_params(size_t initialwidth, PM params, int *offsetout, int external) if (strlen(params->pm_name) > CPERLIN) { advise(NULL, "Parameter name \"%s\" is too long", params->pm_name); - if (paramout) - free(paramout); + mh_xfree(paramout); return NULL; } @@ -3769,8 +3719,7 @@ output_params(size_t initialwidth, PM params, int *offsetout, int external) numchars, valoff); if (i == 0) { - if (paramout) - free(paramout); + mh_xfree(paramout); return NULL; } @@ -3833,8 +3782,7 @@ output_params(size_t initialwidth, PM params, int *offsetout, int external) strlen(params->pm_value + valoff), valoff); if (i == 0) { - if (paramout) - free(paramout); + mh_xfree(paramout); return NULL; } @@ -3933,13 +3881,13 @@ param_len(PM pm, int index, size_t valueoff, int *encode, int *cont, */ if (! pm->pm_charset) { - pm->pm_charset = getcpy(write_charset_8bit()); + pm->pm_charset = mh_xstrdup(write_charset_8bit()); if (strcasecmp(pm->pm_charset, "US-ASCII") == 0) adios(NULL, "8-bit characters in parameter \"%s\", but " "local character set is US-ASCII", pm->pm_name); } if (! pm->pm_lang) - pm->pm_lang = getcpy(NULL); /* Default to a blank lang tag */ + pm->pm_lang = mh_xstrdup(""); /* Default to a blank lang tag */ len++; /* For the encoding marker */ maxfit--; @@ -4010,7 +3958,7 @@ param_len(PM pm, int index, size_t valueoff, int *encode, int *cont, * Output an encoded parameter string. */ -static size_t +size_t encode_param(PM pm, char *output, size_t len, size_t valuelen, size_t valueoff, int index) { @@ -4119,10 +4067,9 @@ normal_param(PM pm, char *output, size_t len, size_t valuelen, PM add_param(PM *first, PM *last, char *name, char *value, int nocopy) { - PM pm = mh_xmalloc(sizeof(*pm)); - - memset(pm, 0, sizeof(*pm)); + PM pm; + NEW0(pm); pm->pm_name = nocopy ? name : getcpy(name); pm->pm_value = nocopy ? value : getcpy(value); @@ -4176,8 +4123,7 @@ get_param(PM first, const char *name, char replace, int fetchonly) if (strcasecmp(name, first->pm_name) == 0) { if (fetchonly) return first->pm_value; - else - return getcpy(get_param_value(first, replace)); + return getcpy(get_param_value(first, replace)); } first = first->pm_next; } @@ -4260,7 +4206,7 @@ char *get_param_value(PM pm, char replace) } if (utf8) { for (++p, --inbytes; - inbytes > 0 && (((unsigned char) *q) & 0xc0) == 0x80; + inbytes > 0 && (((unsigned char) *p) & 0xc0) == 0x80; ++p, --inbytes) continue; } else { @@ -4282,13 +4228,13 @@ noiconv: #endif /* HAVE_ICONV */ /* - * Take everything non-ASCII and substituite the replacement character + * Take everything non-ASCII and substitute the replacement character */ q = buffer; bufsize = sizeof(buffer); for (p = pm->pm_value; *p != '\0' && bufsize > 1; p++, q++, bufsize--) { - if (isascii((unsigned char) *p) && !iscntrl((unsigned char) *p)) + if (isascii((unsigned char) *p) && isprint((unsigned char) *p)) *q = *p; else *q = replace;