Apply timeout to Fsecure malware response. Bug 1549

[users/jgh/exim.git] / src / src / regex.c

diff --git a/src/src/regex.c b/src/src/regex.c
index b6d0badb6780981004d9296d15198c82cec4b14b..de8ec685fc15a1114ae5de001a9f1c43b10a03c4 100644 (file)
--- a/src/src/regex.c
+++ b/src/src/regex.c
@@ -1,5 +1,3 @@
-/* $Cambridge: exim/src/src/regex.c,v 1.3 2004/12/17 14:52:44 ph10 Exp $ */
-
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
@@ -41,13 +39,13 @@ int regex(uschar **listptr) {
   int pcre_erroffset;
   uschar *linebuffer;
   long f_pos = 0;
-  
+
   /* reset expansion variable */
   regex_match_string = NULL;
-  
+
   if (mime_stream == NULL) {
     /* We are in the DATA ACL */
-    mbox_file = spool_mbox(&mbox_size);
+    mbox_file = spool_mbox(&mbox_size, NULL);
     if (mbox_file == NULL) {
       /* error while spooling */
       log_write(0, LOG_MAIN|LOG_PANIC,
@@ -59,19 +57,19 @@ int regex(uschar **listptr) {
     f_pos = ftell(mime_stream);
     mbox_file = mime_stream;
   };
-  
+
   /* precompile our regexes */
   while ((regex_string = string_nextinlist(&list, &sep,
                                            regex_string_buffer,
                                            sizeof(regex_string_buffer))) != NULL) {
-    
+
     /* parse option */
-    if ( (strcmpic(regex_string,US"false") == 0) || 
+    if ( (strcmpic(regex_string,US"false") == 0) ||
          (Ustrcmp(regex_string,"0") == 0) ) {
       /* explicitly no matching */
       continue;
     };
-    
+
     /* compile our regular expression */
     re = pcre_compile( CS regex_string,
                        0,
@@ -92,15 +90,15 @@ int regex(uschar **listptr) {
       re_list_head = re_list_item;
     };
   };
-  
+
   /* no regexes -> nothing to do */
   if (re_list_head == NULL) {
     return FAIL;
   };
-  
+
   /* match each line against all regexes */
   linebuffer = store_get(32767);
-  while (fgets(CS linebuffer, 32767, mbox_file) != NULL) {  
+  while (fgets(CS linebuffer, 32767, mbox_file) != NULL) {
     if ( (mime_stream != NULL) && (mime_current_boundary != NULL) ) {
       /* check boundary */
       if (Ustrncmp(linebuffer,"--",2) == 0) {
@@ -113,11 +111,11 @@ int regex(uschar **listptr) {
     do {
       /* try matcher on the line */
       if (pcre_exec(re_list_item->re, NULL, CS linebuffer,
-                       (int)Ustrlen(linebuffer), 0, 0, NULL, 0) >= 0) {
+      (int)Ustrlen(linebuffer), 0, 0, NULL, 0) >= 0) {
         Ustrncpy(regex_match_string_buffer, re_list_item->pcre_text, 1023);
         regex_match_string = regex_match_string_buffer;
         if (mime_stream == NULL)
-          fclose(mbox_file);
+          (void)fclose(mbox_file);
         else {
           clearerr(mime_stream);
           fseek(mime_stream,f_pos,SEEK_SET);
@@ -127,14 +125,14 @@ int regex(uschar **listptr) {
       re_list_item = re_list_item->next;
     } while (re_list_item != NULL);
   };
-  
+
   if (mime_stream == NULL)
-    fclose(mbox_file);
+    (void)fclose(mbox_file);
   else {
     clearerr(mime_stream);
     fseek(mime_stream,f_pos,SEEK_SET);
   };
-    
+
   /* no matches ... */
   return FAIL;
 }
@@ -161,14 +159,14 @@ int mime_regex(uschar **listptr) {
   while ((regex_string = string_nextinlist(&list, &sep,
                                            regex_string_buffer,
                                            sizeof(regex_string_buffer))) != NULL) {
-    
+
     /* parse option */
-    if ( (strcmpic(regex_string,US"false") == 0) || 
+    if ( (strcmpic(regex_string,US"false") == 0) ||
          (Ustrcmp(regex_string,"0") == 0) ) {
       /* explicitly no matching */
       continue;
     };
-    
+
     /* compile our regular expression */
     re = pcre_compile( CS regex_string,
                        0,
@@ -189,12 +187,12 @@ int mime_regex(uschar **listptr) {
       re_list_head = re_list_item;
     };
   };
-  
+
   /* no regexes -> nothing to do */
   if (re_list_head == NULL) {
     return FAIL;
   };
-  
+
   /* check if the file is already decoded */
   if (mime_decoded_filename == NULL) {
     uschar *empty = US"";
@@ -210,20 +208,20 @@ int mime_regex(uschar **listptr) {
 
 
   /* open file */
-  f = fopen(CS mime_decoded_filename, "r");
+  f = fopen(CS mime_decoded_filename, "rb");
   if (f == NULL) {
     /* open failed */
     log_write(0, LOG_MAIN,
          "mime_regex acl condition warning - can't open '%s' for reading.", mime_decoded_filename);
     return DEFER;
   };
-  
+
   /* get 32k memory */
   mime_subject = (uschar *)store_get(32767);
-  
+
   /* read max 32k chars from file */
   mime_subject_len = fread(mime_subject, 1, 32766, f);
-  
+
   re_list_item = re_list_head;
   do {
     /* try matcher on the mmapped file */
@@ -232,14 +230,14 @@ int mime_regex(uschar **listptr) {
                   mime_subject_len, 0, 0, NULL, 0) >= 0) {
       Ustrncpy(regex_match_string_buffer, re_list_item->pcre_text, 1023);
       regex_match_string = regex_match_string_buffer;
-      fclose(f);
+      (void)fclose(f);
       return OK;
     };
     re_list_item = re_list_item->next;
   } while (re_list_item != NULL);
 
-  fclose(f);
-  
+  (void)fclose(f);
+
   /* no matches ... */
   return FAIL;
 }