Escape literal leading full stop in man/new.man.

[nmh] / uip / mhfixmsg.c

diff --git a/uip/mhfixmsg.c b/uip/mhfixmsg.c
index 39ac295369b9ce4a7b20d7c89f82f45b50dc97e5..a0c6efda9030b61f157f95d0a8e0a4de1b9d92e8 100644 (file)
--- a/uip/mhfixmsg.c
+++ b/uip/mhfixmsg.c
@@ -63,7 +63,7 @@ extern int bogus_mp_content;                  /* flag from InitMultiPart */
 extern int suppress_extraneous_trailing_semicolon_warning;
 
 /* mhoutsbr.c */
 extern int suppress_extraneous_trailing_semicolon_warning;
 
 /* mhoutsbr.c */

-int output_message (CT, char *);
+int output_message_fp (CT, FILE *, char *);

 
 /* mhmisc.c */
 void flush_errors (void);
 
 /* mhmisc.c */
 void flush_errors (void);


@@ -87,9 +87,10 @@ typedef struct fix_transformations {
     char *textcharset;
 } fix_transformations;
 
     char *textcharset;
 } fix_transformations;
 

-int mhfixmsgsbr (CT *, char *, const fix_transformations *, char *);
+int mhfixmsgsbr (CT *, char *, const fix_transformations *, FILE **, char *,
+                 FILE **);

 static int fix_boundary (CT *, int *);
 static int fix_boundary (CT *, int *);

-static int copy_input_to_output (const char *, const char *);
+static int copy_input_to_output (const char *, FILE *, const char *, FILE *);

 static int get_multipart_boundary (CT, char **);
 static int replace_boundary (CT, char *, char *);
 static int fix_types (CT, svector_t, int *);
 static int get_multipart_boundary (CT, char **);
 static int replace_boundary (CT, char *, char *);
 static int fix_types (CT, svector_t, int *);


@@ -121,7 +122,7 @@ static int convert_charsets (CT, char *, int *);
 static int fix_always (CT, int *);
 static int fix_filename_param (char *, char *, PM *, PM *);
 static int fix_filename_encoding (CT);
 static int fix_always (CT, int *);
 static int fix_filename_param (char *, char *, PM *, PM *);
 static int fix_filename_encoding (CT);

-static int write_content (CT, const char *, char *, int, int);
+static int write_content (CT, const char *, char *, FILE *, int, int);

 static void set_text_ctparams(CT, char *, int);
 static int remove_file (const char *);
 static void report (char *, char *, char *, char *, ...);
 static void set_text_ctparams(CT, char *, int);
 static int remove_file (const char *);
 static void report (char *, char *, char *, char *, ...);


@@ -137,7 +138,7 @@ main (int argc, char **argv) {
     struct msgs_array msgs = { 0, 0, NULL };
     struct msgs *mp = NULL;
     CT *ctp;
     struct msgs_array msgs = { 0, 0, NULL };
     struct msgs *mp = NULL;
     CT *ctp;

-    FILE *fp;
+    FILE *fp, *infp = NULL, *outfp = NULL;

     int using_stdin = 0;
     int chgflag = 1;
     int status = OK;
     int using_stdin = 0;
     int chgflag = 1;
     int status = OK;


@@ -255,13 +256,13 @@ main (int argc, char **argv) {
                 if (! (cp = *argp++) || (*cp == '-' && cp[1])) {
                     adios (NULL, "missing argument to %s", argp[-2]);
                 }
                 if (! (cp = *argp++) || (*cp == '-' && cp[1])) {
                     adios (NULL, "missing argument to %s", argp[-2]);
                 }

-                file = *cp == '-'  ?  add (cp, NULL)  :  path (cp, TFILE);
+                file = *cp == '-'  ?  mh_xstrdup (cp)  :  path (cp, TFILE);

                 continue;
             case OUTFILESW:
                 if (! (cp = *argp++) || (*cp == '-' && cp[1])) {
                     adios (NULL, "missing argument to %s", argp[-2]);
                 }
                 continue;
             case OUTFILESW:
                 if (! (cp = *argp++) || (*cp == '-' && cp[1])) {
                     adios (NULL, "missing argument to %s", argp[-2]);
                 }

-                outfile = *cp == '-'  ?  add (cp, NULL)  :  path (cp, TFILE);
+                outfile = *cp == '-'  ?  mh_xstrdup (cp)  :  path (cp, TFILE);

                 continue;
             case RPROCSW:
                 if (!(rmmproc = *argp++) || *rmmproc == '-') {
                 continue;
             case RPROCSW:
                 if (!(rmmproc = *argp++) || *rmmproc == '-') {


@@ -294,7 +295,7 @@ main (int argc, char **argv) {
         } else {
             if (*cp == '/') {
                 /* Interpret a full path as a filename, not a message. */
         } else {
             if (*cp == '/') {
                 /* Interpret a full path as a filename, not a message. */

-                file = add (cp, NULL);
+                file = mh_xstrdup (cp);

             } else {
                 app_msgarg (&msgs, cp);
             }
             } else {
                 app_msgarg (&msgs, cp);
             }


@@ -323,6 +324,16 @@ main (int argc, char **argv) {
         adios (NULL, "cannot specify msg and file at same time!");
     }
 
         adios (NULL, "cannot specify msg and file at same time!");
     }
 

+    if (outfile) {
+        /* Open the outfile now, so we don't have to risk opening it
+           after running out of fds. */
+        if (strcmp (outfile, "-") == 0) {
+            outfp = stdout;
+        } else if ((outfp = fopen (outfile, "w")) == NULL) {
+            adios (outfile, "unable to open for writing");
+        }
+    }
+

     /*
      * check if message is coming from file
      */
     /*
      * check if message is coming from file
      */


@@ -344,7 +355,7 @@ main (int argc, char **argv) {
                        get_temp_dir());
             } else {
                 free (file);
                        get_temp_dir());
             } else {
                 free (file);

-                file = add (cp, NULL);
+                file = mh_xstrdup (cp);

                 cpydata (STDIN_FILENO, fd, "-", file);
             }
 
                 cpydata (STDIN_FILENO, fd, "-", file);
             }
 


@@ -364,14 +375,23 @@ main (int argc, char **argv) {
             advise (NULL, "unable to parse message from file %s", file);
             status = NOTOK;
 
             advise (NULL, "unable to parse message from file %s", file);
             status = NOTOK;
 

-            /* If there's an outfile, pass the input message unchanged, so the message won't
-               get dropped from a pipeline. */
+            /* If there's an outfile, pass the input message unchanged, so the
+               message won't get dropped from a pipeline. */

             if (outfile) {
             if (outfile) {

-                /* Something went wrong.  Output might be expected, such as if this were run
-                   as a filter.  Just copy the input to the output. */
-                if (copy_input_to_output (file, outfile) != OK) {
-                    advise (NULL, "unable to copy message to %s, it might be lost\n", outfile);
+                /* Something went wrong.  Output might be expected, such as if
+                   this were run as a filter.  Just copy the input to the
+                   output. */
+                if ((infp = fopen (file, "r")) == NULL) {
+                    adios (file, "unable to open for reading");

                 }
                 }

+
+                if (copy_input_to_output (file, infp, outfile, outfp) != OK) {
+                    advise (NULL, "unable to copy message to %s, "
+                            "it might be lost\n", outfile);
+                }
+
+                fclose (infp);
+                infp = NULL;

             }
         }
     } else {
             }
         }
     } else {


@@ -386,7 +406,7 @@ main (int argc, char **argv) {
         if (! folder) {
             folder = getfolder (1);
         }
         if (! folder) {
             folder = getfolder (1);
         }

-        maildir = m_maildir (folder);
+        maildir = mh_xstrdup(m_maildir (folder));

 
         /* chdir so that error messages, esp. from MIME parser, just
            refer to the message and not its path. */
 
         /* chdir so that error messages, esp. from MIME parser, just
            refer to the message and not its path. */


@@ -438,11 +458,21 @@ main (int argc, char **argv) {
                         char *input_filename =
                             concat (maildir, "/", msgnam, NULL);
 
                         char *input_filename =
                             concat (maildir, "/", msgnam, NULL);
 

-                        if (copy_input_to_output (input_filename, outfile) != OK) {
+                        if ((infp = fopen (input_filename, "r")) == NULL) {
+                            adios (input_filename,
+                                   "unable to open for reading");
+                        }
+
+                        if (copy_input_to_output (input_filename, infp,
+                                                  outfile, outfp) != OK) {

                             advise (NULL,
                             advise (NULL,

-                                    "unable to copy message to %s, it might be lost\n",
+                                    "unable to copy message to %s, "
+                                    "it might be lost\n",

                                     outfile);
                         }
                                     outfile);
                         }

+
+                        fclose (infp);
+                        infp = NULL;

                         free (input_filename);
                     }
                 }
                         free (input_filename);
                     }
                 }


@@ -459,7 +489,7 @@ main (int argc, char **argv) {
 
     if (*cts) {
         for (ctp = cts; *ctp; ++ctp) {
 
     if (*cts) {
         for (ctp = cts; *ctp; ++ctp) {

-            status += mhfixmsgsbr (ctp, maildir, &fx, outfile);
+            status += mhfixmsgsbr (ctp, maildir, &fx, &infp, outfile, &outfp);

             free_content (*ctp);
 
             if (using_stdin) {
             free_content (*ctp);
 
             if (using_stdin) {


@@ -475,9 +505,12 @@ main (int argc, char **argv) {
         status = 1;
     }
 
         status = 1;
     }
 

+    mh_xfree(maildir);

     free (cts);
 
     if (fx.fixtypes != NULL) { svector_free (fx.fixtypes); }
     free (cts);
 
     if (fx.fixtypes != NULL) { svector_free (fx.fixtypes); }

+    if (infp) { fclose (infp); }    /* even if stdin */
+    if (outfp) { fclose (outfp); }  /* even if stdout */

     free (outfile);
     free (file);
     free (folder);
     free (outfile);
     free (file);
     free (folder);


@@ -493,30 +526,39 @@ main (int argc, char **argv) {
  */
 int
 mhfixmsgsbr (CT *ctp, char *maildir, const fix_transformations *fx,
  */
 int
 mhfixmsgsbr (CT *ctp, char *maildir, const fix_transformations *fx,

-             char *outfile) {
+             FILE **infp, char *outfile, FILE **outfp) {

     /* Store input filename in case one of the transformations, i.e.,
        fix_boundary(), rewrites to a tmp file. */
     char *input_filename = maildir
         ?  concat (maildir, "/", (*ctp)->c_file, NULL)
     /* Store input filename in case one of the transformations, i.e.,
        fix_boundary(), rewrites to a tmp file. */
     char *input_filename = maildir
         ?  concat (maildir, "/", (*ctp)->c_file, NULL)

-        :  add ((*ctp)->c_file, NULL);
+        :  mh_xstrdup ((*ctp)->c_file);

     int modify_inplace = 0;
     int message_mods = 0;
     int status = OK;
 
     int modify_inplace = 0;
     int message_mods = 0;
     int status = OK;
 

+    /* Though the input file won't need to be opened if everything goes
+       well, do it here just in case there's a failure, and that failure is
+       running out of file descriptors. */
+    if ((*infp = fopen (input_filename, "r")) == NULL) {
+        adios (input_filename, "unable to open for reading");
+    }
+

     if (outfile == NULL) {
         modify_inplace = 1;
 
         if ((*ctp)->c_file) {
             char *tempfile;
     if (outfile == NULL) {
         modify_inplace = 1;
 
         if ((*ctp)->c_file) {
             char *tempfile;

-            if ((tempfile = m_mktemp2 (NULL, invo_name, NULL, NULL)) == NULL) {
+            /* outfp will be closed by the caller */
+            if ((tempfile = m_mktemp2 (NULL, invo_name, NULL, outfp)) ==
+                NULL) {

                 adios (NULL, "unable to create temporary file in %s",
                        get_temp_dir());
             }
                 adios (NULL, "unable to create temporary file in %s",
                        get_temp_dir());
             }

-            outfile = add (tempfile, NULL);
+            outfile = mh_xstrdup (tempfile);

         } else {
             adios (NULL, "missing both input and output filenames\n");
         }
         } else {
             adios (NULL, "missing both input and output filenames\n");
         }

-    }
+    } /* else *outfp was defined by caller */

 
     reverse_alternative_parts (*ctp);
     status = fix_always (*ctp, &message_mods);
 
     reverse_alternative_parts (*ctp);
     status = fix_always (*ctp, &message_mods);


@@ -558,14 +600,16 @@ mhfixmsgsbr (CT *ctp, char *maildir, const fix_transformations *fx,
      * Write the content to a file
      */
     if (status == OK) {
      * Write the content to a file
      */
     if (status == OK) {

-        status = write_content (*ctp, input_filename, outfile, modify_inplace,
-                                message_mods);
+        status = write_content (*ctp, input_filename, outfile, *outfp,
+                                modify_inplace, message_mods);

     } else if (! modify_inplace) {
         /* Something went wrong.  Output might be expected, such
            as if this were run as a filter.  Just copy the input
            to the output. */
     } else if (! modify_inplace) {
         /* Something went wrong.  Output might be expected, such
            as if this were run as a filter.  Just copy the input
            to the output. */

-        if (copy_input_to_output (input_filename, outfile) != OK) {
-            advise (NULL, "unable to copy message to %s, it might be lost\n", outfile);
+        if (copy_input_to_output (input_filename, *infp, outfile,
+                                  *outfp) != OK) {
+            advise (NULL, "unable to copy message to %s, it might be lost\n",
+                    outfile);

         }
     }
 
         }
     }
 


@@ -575,6 +619,8 @@ mhfixmsgsbr (CT *ctp, char *maildir, const fix_transformations *fx,
         outfile = NULL;
     }
 
         outfile = NULL;
     }
 

+    fclose (*infp);
+    *infp = NULL;

     free (input_filename);
 
     return status;
     free (input_filename);
 
     return status;


@@ -586,11 +632,10 @@ mhfixmsgsbr (CT *ctp, char *maildir, const fix_transformations *fx,
  * might be running as part of a pipeline.
  */
 static int
  * might be running as part of a pipeline.
  */
 static int

-copy_input_to_output (const char *input_filename, const char *output_filename) {
-    int in = open (input_filename, O_RDONLY);
-    int out = strcmp (output_filename, "-")
-        ?  open (output_filename, O_WRONLY | O_CREAT, m_gmprot ())
-        :  STDOUT_FILENO;
+copy_input_to_output (const char *input_filename, FILE *infp,
+                      const char *output_filename, FILE *outfp) {
+    int in = fileno (infp);
+    int out = fileno (outfp);

     int status = OK;
 
     if (in != -1  &&  out != -1) {
     int status = OK;
 
     if (in != -1  &&  out != -1) {


@@ -599,9 +644,6 @@ copy_input_to_output (const char *input_filename, const char *output_filename) {
         status = NOTOK;
     }
 
         status = NOTOK;
     }
 

-    close (out);
-    close (in);
-

     return status;
 }
 
     return status;
 }
 


@@ -635,7 +677,7 @@ fix_boundary (CT *ct, int *message_mods) {
 
                 if ((fixed = m_mktemp2 (NULL, invo_name, NULL, &(*ct)->c_fp))) {
                     if (replace_boundary (*ct, fixed, part_boundary) == OK) {
 
                 if ((fixed = m_mktemp2 (NULL, invo_name, NULL, &(*ct)->c_fp))) {
                     if (replace_boundary (*ct, fixed, part_boundary) == OK) {

-                        char *filename = add ((*ct)->c_file, NULL);
+                        char *filename = mh_xstrdup ((*ct)->c_file);

                         CT fixed_ct;
 
                         free_content (*ct);
                         CT fixed_ct;
 
                         free_content (*ct);


@@ -718,7 +760,7 @@ get_multipart_boundary (CT ct, char **part_boundary) {
                 if ((end = rfind_str (buffer, cp - buffer, "\n"))) {
                     if (strlen (end) > 3  &&  *end++ == '\n'  &&
                         *end++ == '-'  &&  *end++ == '-') {
                 if ((end = rfind_str (buffer, cp - buffer, "\n"))) {
                     if (strlen (end) > 3  &&  *end++ == '\n'  &&
                         *end++ == '-'  &&  *end++ == '-') {

-                        end_boundary = add (end, NULL);
+                        end_boundary = mh_xstrdup (end);

                         break;
                     }
                 }
                         break;
                     }
                 }


@@ -808,8 +850,8 @@ replace_boundary (CT ct, char *file, char *boundary) {
             compnum++;
 
             /* get copies of the buffers */
             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) {
 
             /* if necessary, get rest of field */
             while (state == FLDPLUS) {


@@ -1095,7 +1137,7 @@ fix_composite_cte (CT ct, int *message_mods) {
                     HF h;
 
                     NEW(h);
                     HF h;
 
                     NEW(h);

-                    h->name = add (hf->name, NULL);
+                    h->name = mh_xstrdup (hf->name);

                     h->hf_encoding = hf->hf_encoding;
                     h->next = hf->next;
                     hf->next = h;
                     h->hf_encoding = hf->hf_encoding;
                     h->next = hf->next;
                     hf->next = h;


@@ -1113,7 +1155,7 @@ fix_composite_cte (CT ct, int *message_mods) {
                         free (encoding);
                     }
 
                         free (encoding);
                     }
 

-                    h->value = add (" 8bit\n", NULL);
+                    h->value = mh_xstrdup (" 8bit\n");

 
                     /* Don't need to warn for multiple C-T-E header
                        fields, parse_mime() already does that.  But
 
                     /* Don't need to warn for multiple C-T-E header
                        fields, parse_mime() already does that.  But


@@ -1186,12 +1228,12 @@ set_ce (CT ct, int encoding) {
             }
         }
         if (! found_cte) {
             }
         }
         if (! found_cte) {

-            add_header (ct, add (ENCODING_FIELD, NULL), cte);
+            add_header (ct, mh_xstrdup (ENCODING_FIELD), cte);

         }
 
         /* Update c_celine.  It's used only by mhlist -debug. */
         free (ct->c_celine);
         }
 
         /* Update c_celine.  It's used only by mhlist -debug. */
         free (ct->c_celine);

-        ct->c_celine = add (cte, NULL);
+        ct->c_celine = mh_xstrdup (cte);

 
         return OK;
     }
 
         return OK;
     }


@@ -1449,11 +1491,12 @@ build_text_plain_part (CT encoded_part) {
            be unlinked by free_content (). */
         char *tempfile;
 
            be unlinked by free_content (). */
         char *tempfile;
 

+        /* This m_mktemp2() call closes the temp file. */

         if ((tempfile = m_mktemp2 (NULL, invo_name, NULL, NULL)) == NULL) {
             advise (NULL, "unable to create temporary file in %s",
                     get_temp_dir());
         } else {
         if ((tempfile = m_mktemp2 (NULL, invo_name, NULL, NULL)) == NULL) {
             advise (NULL, "unable to create temporary file in %s",
                     get_temp_dir());
         } else {

-            tmp_plain_file = add (tempfile, NULL);
+            tmp_plain_file = mh_xstrdup (tempfile);

             if (reformat_part (tp_part, tmp_plain_file,
                                tp_part->c_ctinfo.ci_type,
                                tp_part->c_ctinfo.ci_subtype,
             if (reformat_part (tp_part, tmp_plain_file,
                                tp_part->c_ctinfo.ci_type,
                                tp_part->c_ctinfo.ci_subtype,


@@ -1521,7 +1564,7 @@ divide_part (CT ct) {
     NEW0(new_part);
     /* Just copy over what is needed for decoding.  c_vrsn and
        c_celine aren't necessary. */
     NEW0(new_part);
     /* Just copy over what is needed for decoding.  c_vrsn and
        c_celine aren't necessary. */

-    new_part->c_file = add (ct->c_file, NULL);
+    new_part->c_file = mh_xstrdup (ct->c_file);

     new_part->c_begin = ct->c_begin;
     new_part->c_end = ct->c_end;
     copy_ctinfo (&new_part->c_ctinfo, &ct->c_ctinfo);
     new_part->c_begin = ct->c_begin;
     new_part->c_end = ct->c_end;
     copy_ctinfo (&new_part->c_ctinfo, &ct->c_ctinfo);


@@ -1535,7 +1578,7 @@ divide_part (CT ct) {
 
     /* c_ctline is used by reformat__part(), so it can preserve
        anything after the type/subtype. */
 
     /* c_ctline is used by reformat__part(), so it can preserve
        anything after the type/subtype. */

-    new_part->c_ctline = add (ct->c_ctline, NULL);
+    new_part->c_ctline = mh_xstrdup (ct->c_ctline);

 
     return new_part;
 }
 
     return new_part;
 }


@@ -1548,8 +1591,8 @@ static void
 copy_ctinfo (CI dest, CI src) {
     PM s_pm, d_pm;
 
 copy_ctinfo (CI dest, CI src) {
     PM s_pm, d_pm;
 

-    dest->ci_type = src->ci_type ? add (src->ci_type, NULL) : NULL;
-    dest->ci_subtype = src->ci_subtype ? add (src->ci_subtype, NULL) : NULL;
+    dest->ci_type = src->ci_type ? mh_xstrdup (src->ci_type) : NULL;
+    dest->ci_subtype = src->ci_subtype ? mh_xstrdup (src->ci_subtype) : NULL;

 
     for (s_pm = src->ci_first_pm; s_pm; s_pm = s_pm->pm_next) {
        d_pm = add_param(&dest->ci_first_pm, &dest->ci_last_pm, s_pm->pm_name,
 
     for (s_pm = src->ci_first_pm; s_pm; s_pm = s_pm->pm_next) {
        d_pm = add_param(&dest->ci_first_pm, &dest->ci_last_pm, s_pm->pm_name,


@@ -1562,8 +1605,8 @@ copy_ctinfo (CI dest, CI src) {
         }
     }
 
         }
     }
 

-    dest->ci_comment = src->ci_comment ? add (src->ci_comment, NULL) : NULL;
-    dest->ci_magic = src->ci_magic ? add (src->ci_magic, NULL) : NULL;
+    dest->ci_comment = src->ci_comment ? mh_xstrdup (src->ci_comment) : NULL;
+    dest->ci_magic = src->ci_magic ? mh_xstrdup (src->ci_magic) : NULL;

 }
 
 
 }
 
 


@@ -1574,18 +1617,22 @@ static int
 decode_part (CT ct) {
     char *tmp_decoded;
     int status;
 decode_part (CT ct) {
     char *tmp_decoded;
     int status;

+    FILE *file;

     char *tempfile;
 
     char *tempfile;
 

-    if ((tempfile = m_mktemp2 (NULL, invo_name, NULL, NULL)) == NULL) {
+    if ((tempfile = m_mktemp2 (NULL, invo_name, NULL, &file)) == NULL) {

         adios (NULL, "unable to create temporary file in %s", get_temp_dir());
     }
         adios (NULL, "unable to create temporary file in %s", get_temp_dir());
     }

-    tmp_decoded = add (tempfile, NULL);
+    tmp_decoded = mh_xstrdup (tempfile);

     /* The following call will load ct->c_cefile.ce_file with the tmp
        filename of the decoded content.  tmp_decoded will contain the
        encoded output, get rid of that. */
     /* The following call will load ct->c_cefile.ce_file with the tmp
        filename of the decoded content.  tmp_decoded will contain the
        encoded output, get rid of that. */

-    status = output_message (ct, tmp_decoded);
+    status = output_message_fp (ct, file, tmp_decoded);

     (void) m_unlink (tmp_decoded);
     free (tmp_decoded);
     (void) m_unlink (tmp_decoded);
     free (tmp_decoded);

+    if (fclose (file)) {
+        admonish (NULL, "unable to close temporary file %s", tempfile);
+    }

 
     return status;
 }
 
     return status;
 }


@@ -1688,7 +1735,7 @@ build_multipart_alt (CT first_alt, CT new_part, int type, int subtype) {
        c_showproc, c_termproc, c_storeproc, c_storage, c_folder
     */
 
        c_showproc, c_termproc, c_storeproc, c_storage, c_folder
     */
 

-    ct->c_file = add (first_alt->c_file, NULL);
+    ct->c_file = mh_xstrdup (first_alt->c_file);

     ct->c_type = type;
     ct->c_subtype = subtype;
 
     ct->c_type = type;
     ct->c_subtype = subtype;
 


@@ -1754,23 +1801,23 @@ build_multipart_alt (CT first_alt, CT new_part, int type, int subtype) {
 
     /* Load c_first_hf and c_last_hf. */
     transfer_noncontent_headers (first_alt, ct);
 
     /* Load c_first_hf and c_last_hf. */
     transfer_noncontent_headers (first_alt, ct);

-    add_header (ct, add (TYPE_FIELD, NULL), concat (name, "\n", NULL));
+    add_header (ct, mh_xstrdup (TYPE_FIELD), concat (name, "\n", NULL));

     free (name);
 
     /* Load c_partno. */
     if (first_alt->c_partno) {
     free (name);
 
     /* Load c_partno. */
     if (first_alt->c_partno) {

-        ct->c_partno = add (first_alt->c_partno, NULL);
+        ct->c_partno = mh_xstrdup (first_alt->c_partno);

         free (first_alt->c_partno);
         first_alt->c_partno = concat (ct->c_partno, ".1", NULL);
         new_part->c_partno = concat (ct->c_partno, ".2", NULL);
     } else {
         free (first_alt->c_partno);
         first_alt->c_partno = concat (ct->c_partno, ".1", NULL);
         new_part->c_partno = concat (ct->c_partno, ".2", NULL);
     } else {

-        first_alt->c_partno = add ("1", NULL);
-        new_part->c_partno = add ("2", NULL);
+        first_alt->c_partno = mh_xstrdup ("1");
+        new_part->c_partno = mh_xstrdup ("2");

     }
 
     if (ctinit) {
     }
 
     if (ctinit) {

-        ct->c_ctinfo.ci_type = add (typename, NULL);
-        ct->c_ctinfo.ci_subtype = add (subtypename, NULL);
+        ct->c_ctinfo.ci_type = mh_xstrdup (typename);
+        ct->c_ctinfo.ci_subtype = mh_xstrdup (subtypename);

     }
 
     add_param(&ct->c_ctinfo.ci_first_pm, &ct->c_ctinfo.ci_last_pm,
     }
 
     add_param(&ct->c_ctinfo.ci_first_pm, &ct->c_ctinfo.ci_last_pm,


@@ -1888,14 +1935,14 @@ set_ct_type (CT ct, int type, int subtype, int encoding) {
             free (hf->value);
             hf->value = (cp = strchr (ct->c_ctline, ';'))
                 ?  concat (type_subtypename, cp, "\n", NULL)
             free (hf->value);
             hf->value = (cp = strchr (ct->c_ctline, ';'))
                 ?  concat (type_subtypename, cp, "\n", NULL)

-                :  add (name_plus_nl, NULL);
+                :  mh_xstrdup (name_plus_nl);

         }
     }
     if (! found_content_type) {
         }
     }
     if (! found_content_type) {

-        add_header (ct, add (TYPE_FIELD, NULL),
+        add_header (ct, mh_xstrdup (TYPE_FIELD),

                     (cp = strchr (ct->c_ctline, ';'))
                     ?  concat (type_subtypename, cp, "\n", NULL)
                     (cp = strchr (ct->c_ctline, ';'))
                     ?  concat (type_subtypename, cp, "\n", NULL)

-                    :  add (name_plus_nl, NULL));
+                    :  mh_xstrdup (name_plus_nl));

     }
 
     /* Some of these might not be used, but set them anyway. */
     }
 
     /* Some of these might not be used, but set them anyway. */


@@ -1906,9 +1953,9 @@ set_ct_type (CT ct, int type, int subtype, int encoding) {
     ct->c_ctline = ctline;
     /* Leave other ctinfo members as they were. */
     free (ct->c_ctinfo.ci_type);
     ct->c_ctline = ctline;
     /* Leave other ctinfo members as they were. */
     free (ct->c_ctinfo.ci_type);

-    ct->c_ctinfo.ci_type = add (typename, NULL);
+    ct->c_ctinfo.ci_type = mh_xstrdup (typename);

     free (ct->c_ctinfo.ci_subtype);
     free (ct->c_ctinfo.ci_subtype);

-    ct->c_ctinfo.ci_subtype = add (subtypename, NULL);
+    ct->c_ctinfo.ci_subtype = mh_xstrdup (subtypename);

     ct->c_type = type;
     ct->c_subtype = subtype;
 
     ct->c_type = type;
     ct->c_subtype = subtype;
 


@@ -2224,7 +2271,7 @@ strip_crs (CT ct, int *message_mods) {
                     adios (NULL, "unable to create temporary file in %s",
                            get_temp_dir());
                 }
                     adios (NULL, "unable to create temporary file in %s",
                            get_temp_dir());
                 }

-                stripped_content_file = add (tempfile, NULL);
+                stripped_content_file = mh_xstrdup (tempfile);

 
                 /* Strip each CR before a LF from the content. */
                 fseeko (*fp, begin, SEEK_SET);
 
                 /* Strip each CR before a LF from the content. */
                 fseeko (*fp, begin, SEEK_SET);


@@ -2315,7 +2362,7 @@ update_cte (CT ct) {
             }
         }
         if (! found_cte) {
             }
         }
         if (! found_cte) {

-            add_header (ct, add (ENCODING_FIELD, NULL), cte);
+            add_header (ct, mh_xstrdup (ENCODING_FIELD), cte);

         }
     }
 }
         }
     }
 }


@@ -2543,7 +2590,7 @@ static int
 fix_filename_param (char *name, char *value, PM *first_pm, PM *last_pm) {
     int fixed = 0;
 
 fix_filename_param (char *name, char *value, PM *first_pm, PM *last_pm) {
     int fixed = 0;
 

-    if (HasPrefix(value, "=?") && HasSuffix(value, "?=")) {
+    if (has_prefix(value, "=?") && has_suffix(value, "?=")) {

         /* Looks like an RFC 2047 encoded parameter. */
         char decoded[PATH_MAX + 1];
 
         /* Looks like an RFC 2047 encoded parameter. */
         char decoded[PATH_MAX + 1];
 


@@ -2631,16 +2678,16 @@ fix_filename_encoding (CT ct) {
  * Output content in input file to output file.
  */
 static int
  * Output content in input file to output file.
  */
 static int

-write_content (CT ct, const char *input_filename, char *outfile, int modify_inplace,
-               int message_mods) {
+write_content (CT ct, const char *input_filename, char *outfile, FILE *outfp,
+               int modify_inplace, int message_mods) {

     int status = OK;
 
     if (modify_inplace) {
         if (message_mods > 0) {
     int status = OK;
 
     if (modify_inplace) {
         if (message_mods > 0) {

-            if ((status = output_message (ct, outfile)) == OK) {
+            if ((status = output_message_fp (ct, outfp, outfile)) == OK) {

                 char *infile = input_filename
                 char *infile = input_filename

-                    ?  add (input_filename, NULL)
-                    :  add (ct->c_file ? ct->c_file : "-", NULL);
+                    ?  mh_xstrdup (input_filename)
+                    :  mh_xstrdup (ct->c_file ? ct->c_file : "-");

 
                 if (remove_file (infile) == OK) {
                     if (rename (outfile, infile)) {
 
                 if (remove_file (infile) == OK) {
                     if (rename (outfile, infile)) {


@@ -2696,7 +2743,7 @@ write_content (CT ct, const char *input_filename, char *outfile, int modify_inpl
     } else {
         /* Output is going to some file.  Produce it whether or not
            there were modifications. */
     } else {
         /* Output is going to some file.  Produce it whether or not
            there were modifications. */

-        status = output_message (ct, outfile);
+        status = output_message_fp (ct, outfp, outfile);

     }
 
     flush_errors ();
     }
 
     flush_errors ();