X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/513587ec31160434400bb003d7160777e2db6bb6..f1920d78123667716f2321d37ce37628603b2700:/uip/mhfixmsg.c

diff --git a/uip/mhfixmsg.c b/uip/mhfixmsg.c
index 2dd3ef20..65abd513 100644
--- a/uip/mhfixmsg.c
+++ b/uip/mhfixmsg.c
@@ -119,6 +119,7 @@ static int strip_crs (CT, int *);
 static int convert_charsets (CT, char *, int *);
 static int fix_always (CT, int *);
 static int write_content (CT, char *, char *, int, int);
+static void set_text_ctparams(CT, char *, int);
 static int remove_file (char *);
 static void report (char *, char *, char *, char *, ...);
 static void pipeser (int);
@@ -142,7 +143,7 @@ main (int argc, char **argv) {
     fx.fixtypes = NULL;
     fx.replacetextplain = 0;
     fx.decodetext = CE_8BIT;
-    fx.decodetypes = "text";  /* Default to all text content. */
+    fx.decodetypes = "text,application/ics";  /* Default, per man page. */
     fx.lf_line_endings = 0;
     fx.textcharset = NULL;
 
@@ -346,15 +347,7 @@ main (int argc, char **argv) {
         ctp = cts;
 
         if ((ct = parse_mime (file))) {
-            if (ct->c_type == CT_TEXT) {
-                /* parse_mime() does not set lf_line_endings in struct text, so set it here. */
-                if (ct->c_ctparams == NULL) {
-                    if ((ct->c_ctparams = (struct text *) mh_xcalloc (1, sizeof (struct text))) == NULL) {
-                        adios (NULL, "out of memory");
-                    }
-                }
-                ((struct text *) ct->c_ctparams)->lf_line_endings = fx.lf_line_endings;
-            }
+            set_text_ctparams(ct, fx.decodetypes, fx.lf_line_endings);
             *ctp++ = ct;
         }
     } else {
@@ -398,16 +391,7 @@ main (int argc, char **argv) {
 
                 msgnam = m_name (msgnum);
                 if ((ct = parse_mime (msgnam))) {
-                    if (ct->c_type == CT_TEXT) {
-                        /* parse_mime() does not set lf_line_endings in struct text, so set it here. */
-                        if (ct->c_ctparams == NULL) {
-                            if ((ct->c_ctparams = (struct text *) mh_xcalloc (1, sizeof (struct text))) ==
-                                NULL) {
-                                adios (NULL, "out of memory");
-                            }
-                        }
-                        ((struct text *) ct->c_ctparams)->lf_line_endings = fx.lf_line_endings;
-                    }
+                    set_text_ctparams(ct, fx.decodetypes, fx.lf_line_endings);
                     *ctp++ = ct;
                 }
             }
@@ -599,7 +583,16 @@ fix_boundary (CT *ct, int *message_mods) {
                 }
 
                 free (part_boundary);
+            } else {
+                /* Couldn't fix the boundary.  Report failure so that mhfixmsg
+                   doesn't modify the message. */
+                status = NOTOK;
             }
+        } else {
+            /* No multipart struct, even though the content type is
+               CT_MULTIPART.  Report failure so that mhfixmsg doesn't modify
+               the message. */
+            status = NOTOK;
         }
     }
 
@@ -1792,15 +1785,37 @@ set_ct_type (CT ct, int type, int subtype, int encoding) {
 static int
 decode_text_parts (CT ct, int encoding, const char *decodetypes, int *message_mods) {
     int status = OK;
+    int lf_line_endings = 0;
 
     switch (ct->c_type) {
-    case CT_TEXT: {
-        struct text *const text_content_info = (struct text *) ct->c_ctparams;
+    case CT_MULTIPART: {
+        struct multipart *m = (struct multipart *) ct->c_ctparams;
+        struct part *part;
+
+        /* Should check to see if the body for this part is encoded?
+           For now, it gets passed along as-is by InitMultiPart(). */
+        for (part = m->mp_parts; status == OK  &&  part; part = part->mp_next) {
+            status = decode_text_parts (part->mp_part, encoding, decodetypes, message_mods);
+        }
+        break;
+    }
+
+    case CT_MESSAGE:
+        if (ct->c_subtype == MESSAGE_EXTERNAL) {
+            struct exbody *e = (struct exbody *) ct->c_ctparams;
 
+            status = decode_text_parts (e->eb_content, encoding, decodetypes, message_mods);
+        }
+        break;
+
+    default:
         if (! should_decode(decodetypes, ct->c_ctinfo.ci_type, ct->c_ctinfo.ci_subtype)) {
             break;
         }
 
+        lf_line_endings =
+            ct->c_ctparams  &&  ((struct text *) ct->c_ctparams)->lf_line_endings;
+
         switch (ct->c_encoding) {
         case CE_BASE64:
         case CE_QUOTED: {
@@ -1852,7 +1867,7 @@ decode_text_parts (CT ct, int encoding, const char *decodetypes, int *message_mo
                             report (NULL, ct->c_partno, ct->c_file, "decode%s",
                                     ct->c_ctline ? ct->c_ctline : "");
                         }
-                        if (text_content_info  &&  text_content_info->lf_line_endings) {
+                        if (lf_line_endings) {
                             strip_crs (ct, message_mods);
                         }
                     } else {
@@ -1866,7 +1881,7 @@ decode_text_parts (CT ct, int encoding, const char *decodetypes, int *message_mo
         }
         case CE_8BIT:
         case CE_7BIT:
-            if (text_content_info  &&  text_content_info->lf_line_endings) {
+            if (lf_line_endings) {
                 strip_crs (ct, message_mods);
             }
             break;
@@ -1877,30 +1892,6 @@ decode_text_parts (CT ct, int encoding, const char *decodetypes, int *message_mo
         break;
     }
 
-    case CT_MULTIPART: {
-        struct multipart *m = (struct multipart *) ct->c_ctparams;
-        struct part *part;
-
-        /* Should check to see if the body for this part is encoded?
-           For now, it gets passed along as-is by InitMultiPart(). */
-        for (part = m->mp_parts; status == OK  &&  part; part = part->mp_next) {
-            status = decode_text_parts (part->mp_part, encoding, decodetypes, message_mods);
-        }
-        break;
-    }
-
-    case CT_MESSAGE:
-        if (ct->c_subtype == MESSAGE_EXTERNAL) {
-            struct exbody *e = (struct exbody *) ct->c_ctparams;
-
-            status = decode_text_parts (e->eb_content, encoding, decodetypes, message_mods);
-        }
-        break;
-
-    default:
-        break;
-    }
-
     return status;
 }
 
@@ -2357,6 +2348,44 @@ write_content (CT ct, char *input_filename, char *outfile, int modify_inplace,
 }
 
 
+/*
+ * parse_mime() does not set lf_line_endings in struct text, so use this function to do it.
+ * It touches the parts the decodetypes identifies.
+ */
+static void
+set_text_ctparams(CT ct, char *decodetypes, int lf_line_endings) {
+    switch (ct->c_type) {
+    case CT_MULTIPART: {
+        struct multipart *m = (struct multipart *) ct->c_ctparams;
+        struct part *part;
+
+        for (part = m->mp_parts; part; part = part->mp_next) {
+            set_text_ctparams(part->mp_part, decodetypes, lf_line_endings);
+        }
+        break;
+    }
+
+    case CT_MESSAGE:
+        if (ct->c_subtype == MESSAGE_EXTERNAL) {
+            struct exbody *e = (struct exbody *) ct->c_ctparams;
+
+            set_text_ctparams(e->eb_content, decodetypes, lf_line_endings);
+        }
+        break;
+
+    default:
+        if (should_decode(decodetypes, ct->c_ctinfo.ci_type, ct->c_ctinfo.ci_subtype)) {
+            if (ct->c_ctparams == NULL) {
+                if ((ct->c_ctparams = (struct text *) mh_xcalloc (1, sizeof (struct text))) == NULL) {
+                    adios (NULL, "out of memory");
+                }
+            }
+            ((struct text *) ct->c_ctparams)->lf_line_endings = lf_line_endings;
+        }
+    }
+}
+
+
 /*
  * If "rmmproc" is defined, call that to remove the file.  Otherwise,
  * use the standard MH backup file.