Alter HasSuffixC()'s char * to be const.

[nmh] / uip / mhparse.c

diff --git a/uip/mhparse.c b/uip/mhparse.c
index 7c8f07dc73ca4090038c4d77f329f99317809188..7e01b050807fe93b0538b73ca42c23c9cb367e3e 100644 (file)
--- a/uip/mhparse.c
+++ b/uip/mhparse.c
@@ -151,7 +151,6 @@ 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 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);
 
 static size_t normal_param(PM, char *, size_t, size_t, size_t);
 static int get_dispo (char *, CT, int);
 


@@ -295,9 +294,7 @@ get_content (FILE *in, char *file, int toplevel)
     m_getfld_state_t gstate = 0;
 
     /* allocate the content structure */
     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;
     ct->c_fp = in;
     ct->c_file = add (file, NULL);
     ct->c_begin = ftell (ct->c_fp) + 1;


@@ -333,7 +330,15 @@ get_content (FILE *in, char *file, int toplevel)
            continue;
 
        case BODY:
            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:
            break;
 
        case FILEEOF:


@@ -584,7 +589,7 @@ add_header (CT ct, char *name, char *value)
     HF hp;
 
     /* allocate header field structure */
     HF hp;
 
     /* allocate header field structure */

-    hp = mh_xmalloc (sizeof(*hp));
+    NEW(hp);

 
     /* link data into header structure */
     hp->name = name;
 
     /* link data into header structure */
     hp->name = name;


@@ -648,15 +653,11 @@ get_ctinfo (char *cp, CT ct, int magic)
     *dp = c, cp = dp;
 
     if (!*ci->ci_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;
     }
                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);
+    ToLower(ci->ci_type);

 
     while (isspace ((unsigned char) *cp))
        cp++;
 
     while (isspace ((unsigned char) *cp))
        cp++;


@@ -691,11 +692,7 @@ get_ctinfo (char *cp, CT ct, int magic)
                TYPE_FIELD, ct->c_file, ci->ci_type);
        return NOTOK;
     }
                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);
+    ToLower(ci->ci_subtype);

 
 magic_skip:
     while (isspace ((unsigned char) *cp))
 
 magic_skip:
     while (isspace ((unsigned char) *cp))


@@ -715,10 +712,8 @@ magic_skip:
      * Get any <Content-Id> given in buffer
      */
     if (magic && *cp == '<') {
      * Get any <Content-Id> 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;
        if (!(dp = strchr(ct->c_id = ++cp, '>'))) {
            advise (NULL, "invalid ID in message %s", ct->c_file);
            return NOTOK;


@@ -1030,8 +1025,7 @@ InitText (CT ct)
     ct->c_subtype = ct_str_subtype (CT_TEXT, ci->ci_subtype);
 
     /* allocate text character set structure */
     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 */
     ct->c_ctparams = (void *) t;
 
     /* scan for charset parameter */


@@ -1057,7 +1051,7 @@ 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)))
     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;
     }
 
     return OK;


@@ -1101,8 +1095,9 @@ InitMultiPart (CT ct)
 
        admonish (NULL,
                  "\"%s/%s\" type in message %s must be encoded in\n"
 
        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);
                  "Content-Transfer-Encoding to one of those.  For now",
                  ci->ci_type, ci->ci_subtype, ct->c_file, bp);
        free (cte);


@@ -1134,8 +1129,7 @@ InitMultiPart (CT ct)
     }
 
     /* allocate primary structure for multipart info */
     }
 
     /* 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 */
     ct->c_ctparams = (void *) m;
 
     /* check if boundary parameter contains only whitespace characters */


@@ -1179,8 +1173,7 @@ InitMultiPart (CT ct)
            if (strcmp (bufp + 2, m->mp_start))
                continue;
 next_part:
            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;
 
            *next = part;
            next = &part->mp_next;
 


@@ -1206,10 +1199,9 @@ end_part:
                if (inout)
                    goto next_part;
                goto last_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;

        }
     }
 
        }
     }
 


@@ -1228,7 +1220,7 @@ end_part:
                continue;
            *next = NULL;
            free_content (p);
                continue;
            *next = NULL;
            free_content (p);

-           free ((char *) part);
+           free(part);

        }
     }
 
        }
     }
 


@@ -1419,8 +1411,7 @@ InitMessage (CT ct)
                PM pm;
                struct partial *p;
 
                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" */
                ct->c_ctparams = (void *) p;
 
                /* scan for parameters "id", "number", and "total" */


@@ -1468,8 +1459,7 @@ invalid_param:
                CT p;
                FILE *fp;
 
                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
                ct->c_ctparams = (void *) e;
 
                if (!ct->c_fp


@@ -1493,14 +1483,14 @@ invalid_param:
                        && p->c_ceopenfnx == openMail) {
                    int cc, size;
                    char *bp;
                        && 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;
                    }
                    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)
                    e->eb_body = bp = mh_xmalloc ((unsigned) size);
                    fseek (p->c_fp, p->c_begin, SEEK_SET);
                    while (size > 0)


@@ -1709,8 +1699,7 @@ size_encoding (CT ct)
     if (ce->ce_file) {
        if (stat (ce->ce_file, &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;
+        return 0L;

     }
 
     if (ct->c_encoding == CE_EXTERNAL)
     }
 
     if (ct->c_encoding == CE_EXTERNAL)


@@ -1734,26 +1723,6 @@ size_encoding (CT ct)
  * BASE64
  */
 
  * 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)
 {
 static int
 InitBase64 (CT ct)
 {


@@ -1764,15 +1733,15 @@ InitBase64 (CT ct)
 static int
 openBase64 (CT ct, char **file)
 {
 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;
     /* 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);
 
     if (ce->ce_fp) {
        fseek (ce->ce_fp, 0L, SEEK_SET);


@@ -1823,6 +1792,8 @@ openBase64 (CT ct, char **file)
     if ((len = ct->c_end - ct->c_begin) < 0)
        adios (NULL, "internal error(1)");
 
     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");
     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");


@@ -1830,17 +1801,11 @@ openBase64 (CT ct, char **file)
        }
        own_ct_fp = 1;
     }
        }
        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);
 
     lseek (fd = fileno (ct->c_fp), (off_t) ct->c_begin, SEEK_SET);

+    cp = buffer;

     while (len > 0) {
     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;
        case NOTOK:
            content_error (ct->c_file, ct, "error reading from");
            goto clean_up;


@@ -1853,75 +1818,41 @@ openBase64 (CT ct, char **file)
            if (cc > len)
                cc = len;
            len -= cc;
            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)) {
     fseek (ct->c_fp, 0L, SEEK_SET);
 
     if (fflush (ce->ce_fp)) {


@@ -1929,19 +1860,6 @@ self_delimiting:
        goto clean_up;
     }
 
        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:
     fseek (ce->ce_fp, 0L, SEEK_SET);
 
 ready_to_go:


@@ -1950,6 +1868,7 @@ ready_to_go:
       fclose (ct->c_fp);
       ct->c_fp = NULL;
     }
       fclose (ct->c_fp);
       ct->c_fp = NULL;
     }

+    free (buffer);

     return fileno (ce->ce_fp);
 
 clean_up:
     return fileno (ce->ce_fp);
 
 clean_up:


@@ -1958,6 +1877,7 @@ clean_up:
       ct->c_fp = NULL;
     }
     free_encoding (ct, 0);
       ct->c_fp = NULL;
     }
     free_encoding (ct, 0);

+    free (buffer);

     return NOTOK;
 }
 
     return NOTOK;
 }
 


@@ -1975,18 +1895,18 @@ 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, 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, 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
 };
 
 
     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);
 InitQuoted (CT ct)
 {
     return init_encoding (ct, openQuoted);


@@ -2398,12 +2318,11 @@ 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"))) {
     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;
            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);
     }
 
     *fd = fileno (ce->ce_fp);


@@ -2450,7 +2369,7 @@ openFile (CT ct, char **file)
        return NOTOK;
     }
 
        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) {
     ce->ce_unlink = 0;
 
     if ((ce->ce_fp = fopen (ce->ce_file, "r")) == NULL) {


@@ -2582,7 +2501,7 @@ openFTP (CT ct, char **file)
     /*
      * Now, check the answer
      */
     /*
      * Now, check the answer
      */

-    if (!getanswer (buffer))
+    if (!read_yes_or_no_if_tty (buffer))

        return NOTOK;
 
     if (e->eb_flags) {
        return NOTOK;
 
     if (e->eb_flags) {


@@ -2591,7 +2510,7 @@ openFTP (CT ct, char **file)
                  LocalName (1));
        pass = buffer;
     } else {
                  LocalName (1));
        pass = buffer;
     } else {

-       ruserpass (e->eb_site, &username, &password);
+       ruserpass (e->eb_site, &username, &password, 0);

        user = username;
        pass = password;
     }
        user = username;
        pass = password;
     }


@@ -2769,7 +2688,7 @@ openMail (CT ct, char **file)
                    e->eb_subject ? e->eb_subject : e->eb_body);
 
     /* Now, check answer */
                    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;
        return NOTOK;
 
     vecp = 0;


@@ -2821,8 +2740,7 @@ openMail (CT ct, char **file)
 
     /* showproc is for mhshow and mhstore, though mhlist -debug
      * prints it, too. */
 
     /* showproc is for mhshow and mhstore, though mhlist -debug
      * prints it, too. */

-    if (ct->c_showproc)
-       free (ct->c_showproc);
+    mh_xfree(ct->c_showproc);

     ct->c_showproc = add ("true", NULL);
 
     fseek (ce->ce_fp, 0L, SEEK_SET);
     ct->c_showproc = add ("true", NULL);
 
     fseek (ce->ce_fp, 0L, SEEK_SET);


@@ -2967,79 +2885,44 @@ openURL (CT ct, char **file)
     return fd;
 }
 
     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)
 {
 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");
+            }

 
 

-    if (debugsw) {
-       fprintf (stderr, "MD5 digest=");
-       for (dp = ct->c_digest; dp < ep; dp++)
-           fprintf (stderr, "%02x", *dp & 0xff);
-       fprintf (stderr, "\n");
+            return OK;
+        }
+        if (debugsw) {
+            fprintf (stderr, "invalid MD5 digest (got %d octets)\n",
+                     (int) strlen ((char *) digest));
+        }
+
+        return NOTOK;

     }
 
     }
 

-    return OK;
+    return NOTOK;

 }
 
 
 }
 
 


@@ -3405,8 +3288,7 @@ parse_header_attrs (const char *filename, const char *fieldname,
 
        /* down case the attribute name */
        for (dp = cp; istoken ((unsigned char) *dp); dp++)
 
        /* 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++;
 
        for (up = dp; isspace ((unsigned char) *dp);)
            dp++;


@@ -3515,8 +3397,7 @@ parse_header_attrs (const char *filename, const char *fieldname,
                           "field\n%*s(parameter %s)", filename, fieldname,
                           strlen(invo_name) + 2, "", nameptr);
                    free(nameptr);
                           "field\n%*s(parameter %s)", filename, fieldname,
                           strlen(invo_name) + 2, "", nameptr);
                    free(nameptr);

-                   if (charset)
-                       free(charset);
+                    mh_xfree(charset);

                    return NOTOK;
                }
 
                    return NOTOK;
                }
 


@@ -3541,10 +3422,8 @@ parse_header_attrs (const char *filename, const char *fieldname,
                               filename, fieldname, strlen(invo_name) + 2,
                               "", nameptr);
                        free(nameptr);
                               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;
                        return NOTOK;
                    }
                    vp += 2;


@@ -3587,10 +3466,8 @@ bad_quote:
                                filename, fieldname, strlen(invo_name) + 2, "",
                                nameptr);
                        free(nameptr);
                                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;
                        return NOTOK;
                    case '"':
                        break;


@@ -3647,8 +3524,7 @@ bad_quote:
            }
 
            if (pp == NULL) {
            }
 
            if (pp == NULL) {

-               pp = mh_xmalloc(sizeof(*pp));
-               memset(pp, 0, sizeof(*pp));
+               NEW0(pp);

                pp->name = nameptr;
                pp->next = phead;
                phead = pp;
                pp->name = nameptr;
                pp->next = phead;
                phead = pp;


@@ -3658,8 +3534,7 @@ bad_quote:
             * Insert this into the section linked list
             */
 
             * 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;
            sp->value = valptr;
            sp->index = index;
            sp->len = len;


@@ -3700,11 +3575,9 @@ bad_quote:
             */
 
            if (index == 0 && encoded) {
             */
 
            if (index == 0 && encoded) {

-               if (pp->charset)
-                   free(pp->charset);
+                mh_xfree(pp->charset);

                pp->charset = charset;
                pp->charset = charset;

-               if (pp->lang)
-                   free(pp->lang);
+                mh_xfree(pp->lang);

                pp->lang = lang;
            }
        } else {
                pp->lang = lang;
            }
        } else {


@@ -3775,7 +3648,7 @@ content_charset (CT ct) {
 
     ret_charset = get_param(ct->c_ctinfo.ci_first_pm, "charset", '?', 0);
 
 
     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");

 }
 
 
 }
 
 


@@ -3804,8 +3677,7 @@ 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 (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;
        }
 
            return NULL;
        }
 


@@ -3842,8 +3714,7 @@ output_params(size_t initialwidth, PM params, int *offsetout, int external)
                                 numchars, valoff);
 
            if (i == 0) {
                                 numchars, valoff);
 
            if (i == 0) {

-               if (paramout)
-                   free(paramout);
+                mh_xfree(paramout);

                return NULL;
            }
 
                return NULL;
            }
 


@@ -3906,8 +3777,7 @@ output_params(size_t initialwidth, PM params, int *offsetout, int external)
                             strlen(params->pm_value + valoff), valoff);
 
        if (i == 0) {
                             strlen(params->pm_value + valoff), valoff);
 
        if (i == 0) {

-           if (paramout)
-               free(paramout);
+            mh_xfree(paramout);

            return NULL;
        }
 
            return NULL;
        }
 


@@ -4006,13 +3876,13 @@ param_len(PM pm, int index, size_t valueoff, int *encode, int *cont,
         */
 
        if (! pm->pm_charset) {
         */
 
        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)
            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--;
 
        len++;          /* For the encoding marker */
        maxfit--;


@@ -4083,7 +3953,7 @@ param_len(PM pm, int index, size_t valueoff, int *encode, int *cont,
  * Output an encoded parameter string.
  */
 
  * 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)
 {
 encode_param(PM pm, char *output, size_t len, size_t valuelen,
              size_t valueoff, int index)
 {


@@ -4192,10 +4062,9 @@ 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
 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);
 
     pm->pm_name = nocopy ? name : getcpy(name);
     pm->pm_value = nocopy ? value : getcpy(value);
 


@@ -4249,8 +4118,7 @@ get_param(PM first, const char *name, char replace, int fetchonly)
        if (strcasecmp(name, first->pm_name) == 0) {
            if (fetchonly)
                return first->pm_value;
        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;
     }
        }
        first = first->pm_next;
     }


@@ -4333,7 +4201,7 @@ char *get_param_value(PM pm, char replace)
            }
            if (utf8) {
                for (++p, --inbytes;
            }
            if (utf8) {
                for (++p, --inbytes;

-                    inbytes > 0 && (((unsigned char) *q) & 0xc0) == 0x80;
+                    inbytes > 0 && (((unsigned char) *p) & 0xc0) == 0x80;

                     ++p, --inbytes)
                    continue;
            } else {
                     ++p, --inbytes)
                    continue;
            } else {


@@ -4361,6 +4229,10 @@ noiconv:
     q = buffer;
     bufsize = sizeof(buffer);
     for (p = pm->pm_value; *p != '\0' && bufsize > 1; p++, q++, bufsize--) {
     q = buffer;
     bufsize = sizeof(buffer);
     for (p = pm->pm_value; *p != '\0' && bufsize > 1; p++, q++, bufsize--) {

+        /* FIXME: !iscntrl should perhaps be isprint as that allows all
+         * classes bar cntrl, whereas the cntrl class can include those
+         * in space and blank.
+         * http://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap07.html */

        if (isascii((unsigned char) *p) && !iscntrl((unsigned char) *p))
            *q = *p;
        else
        if (isascii((unsigned char) *p) && !iscntrl((unsigned char) *p))
            *q = *p;
        else