X-Git-Url: https://vcs.fsf.org/?p=exim.git;a=blobdiff_plain;f=src%2Fsrc%2Fspool_mbox.c;h=16b0a332cc73bdd4c1c95bfb477199cfbce34f21;hp=357eba9da2fcd22bcfaf7922157197c443de05e4;hb=refs%2Ftags%2Fexim-4_90_RC1;hpb=80fea873648ca2ab2e592999a336c59cf054ab55

diff --git a/src/src/spool_mbox.c b/src/src/spool_mbox.c
index 357eba9da..16b0a332c 100644
--- a/src/src/spool_mbox.c
+++ b/src/src/spool_mbox.c
@@ -4,7 +4,7 @@
 
 /* Copyright (c) Tom Kistner <tom@duncanthrax.net> 2003 - 2015
  * License: GPL
- * Copyright (c) The Exim Maintainers 2016
+ * Copyright (c) The Exim Maintainers 2017
  */
 
 /* Code for setting up a MBOX style spool file inside a /scan/<msgid>
@@ -13,23 +13,23 @@ sub directory of exim's spool directory. */
 #include "exim.h"
 #ifdef WITH_CONTENT_SCAN
 
-/* externals, we must reset them on unspooling */
-#ifdef WITH_OLD_DEMIME
-extern int demime_ok;
-extern struct file_extension *file_extensions;
-#endif
-
 extern int malware_ok;
 extern int spam_ok;
 
 int spool_mbox_ok = 0;
 uschar spooled_message_id[MESSAGE_ID_LENGTH+1];
 
-/* returns a pointer to the FILE, and puts the size in bytes into mbox_file_size
- * normally, source_file_override is NULL */
+/*
+Create an MBOX-style message file from the spooled files.
+
+Returns a pointer to the FILE, and puts the size in bytes into mbox_file_size.
+If mbox_fname is non-null, fill in a pointer to the name.
+Normally, source_file_override is NULL
+*/
 
 FILE *
-spool_mbox(unsigned long *mbox_file_size, const uschar *source_file_override)
+spool_mbox(unsigned long *mbox_file_size, const uschar *source_file_override,
+  uschar ** mbox_fname)
 {
 uschar message_subdir[2];
 uschar buffer[16384];
@@ -41,10 +41,13 @@ FILE *yield = NULL;
 header_line *my_headerlist;
 struct stat statbuf;
 int i, j;
-void *reset_point = store_get(0);
+void *reset_point;
+
+mbox_path = string_sprintf("%s/scan/%s/%s.eml",
+  spool_directory, message_id, message_id);
+if (mbox_fname) *mbox_fname = mbox_path;
 
-mbox_path = string_sprintf("%s/scan/%s/%s.eml", spool_directory, message_id,
-  message_id);
+reset_point = store_get(0);
 
 /* Skip creation if already spooled out as mbox file */
 if (!spool_mbox_ok)
@@ -59,8 +62,8 @@ if (!spool_mbox_ok)
     }
 
   /* open [message_id].eml file for writing */
-  mbox_file = modefopen(mbox_path, "wb", SPOOL_MODE);
-  if (mbox_file == NULL)
+
+  if (!(mbox_file = modefopen(mbox_path, "wb", SPOOL_MODE)))
     {
     log_write(0, LOG_MAIN|LOG_PANIC, "%s", string_open_failed(errno,
       "scan file %s", mbox_path));
@@ -77,33 +80,25 @@ if (!spool_mbox_ok)
     "${if def:sender_address{X-Envelope-From: <${sender_address}>\n}}"
     "${if def:recipients{X-Envelope-To: ${recipients}\n}}");
 
-  if (temp_string != NULL)
-    {
-    i = fwrite(temp_string, Ustrlen(temp_string), 1, mbox_file);
-    if (i != 1)
+  if (temp_string)
+    if (fwrite(temp_string, Ustrlen(temp_string), 1, mbox_file) != 1)
       {
       log_write(0, LOG_MAIN|LOG_PANIC, "Error/short write while writing \
 	  mailbox headers to %s", mbox_path);
       goto OUT;
       }
-    }
 
-  /* write all header lines to mbox file */
-  my_headerlist = header_list;
-  for (my_headerlist = header_list; my_headerlist != NULL;
-    my_headerlist = my_headerlist->next)
-    {
-    /* skip deleted headers */
-    if (my_headerlist->type == '*') continue;
+  /* write all non-deleted header lines to mbox file */
 
-    i = fwrite(my_headerlist->text, my_headerlist->slen, 1, mbox_file);
-    if (i != 1)
-      {
-      log_write(0, LOG_MAIN|LOG_PANIC, "Error/short write while writing \
-	  message headers to %s", mbox_path);
-      goto OUT;
-      }
-    }
+  for (my_headerlist = header_list; my_headerlist;
+      my_headerlist = my_headerlist->next)
+    if (my_headerlist->type != '*')
+      if (fwrite(my_headerlist->text, my_headerlist->slen, 1, mbox_file) != 1)
+	{
+	log_write(0, LOG_MAIN|LOG_PANIC, "Error/short write while writing \
+	    message headers to %s", mbox_path);
+	goto OUT;
+	}
 
   /* End headers */
   if (fwrite("\n", 1, 1, mbox_file) != 1)
@@ -114,22 +109,20 @@ if (!spool_mbox_ok)
     }
 
   /* copy body file */
-  if (source_file_override == NULL)
+  if (!source_file_override)
     {
     message_subdir[1] = '\0';
     for (i = 0; i < 2; i++)
       {
-      message_subdir[0] = (split_spool_directory == (i == 0))? message_id[5] : 0;
-      temp_string = string_sprintf("%s/input/%s/%s-D", spool_directory,
-	message_subdir, message_id);
-      data_file = Ufopen(temp_string, "rb");
-      if (data_file != NULL) break;
+      message_subdir[0] = split_spool_directory == (i == 0) ? message_id[5] : 0;
+      temp_string = spool_fname(US"input", message_subdir, message_id, US"-D");
+      if ((data_file = Ufopen(temp_string, "rb"))) break;
       }
     }
   else
     data_file = Ufopen(source_file_override, "rb");
 
-  if (data_file == NULL)
+  if (!data_file)
     {
     log_write(0, LOG_MAIN|LOG_PANIC, "Could not open datafile for message %s",
       message_id);
@@ -150,18 +143,32 @@ if (!spool_mbox_ok)
 
   do
     {
-    j = fread(buffer, 1, sizeof(buffer), data_file);
+    uschar * s;
+
+    if (!spool_file_wireformat || source_file_override)
+      j = fread(buffer, 1, sizeof(buffer), data_file);
+    else						/* needs CRLF -> NL */
+      if ((s = US fgets(CS buffer, sizeof(buffer), data_file)))
+	{
+	uschar * p = s + Ustrlen(s) - 1;
+
+	if (*p == '\n' && p[-1] == '\r')
+	  *--p = '\n';
+	else if (*p == '\r')
+	  ungetc(*p--, data_file);
+
+	j = p - buffer;
+	}
+      else
+	j = 0;
 
     if (j > 0)
-      {
-      i = fwrite(buffer, j, 1, mbox_file);
-      if (i != 1)
+      if (fwrite(buffer, j, 1, mbox_file) != 1)
         {
 	log_write(0, LOG_MAIN|LOG_PANIC, "Error/short write while writing \
 	    message body to %s", mbox_path);
 	goto OUT;
 	}
-      }
     } while (j > 0);
 
   (void)fclose(mbox_file);
@@ -173,15 +180,14 @@ if (!spool_mbox_ok)
   }
 
 /* get the size of the mbox message and open [message_id].eml file for reading*/
-if (Ustat(mbox_path, &statbuf) != 0 ||
-    (yield = Ufopen(mbox_path,"rb")) == NULL)
-  {
+
+if (  !(yield = Ufopen(mbox_path,"rb"))
+   || fstat(fileno(yield), &statbuf) != 0
+   )
   log_write(0, LOG_MAIN|LOG_PANIC, "%s", string_open_failed(errno,
     "scan file %s", mbox_path));
-  goto OUT;
-  }
-
-*mbox_file_size = statbuf.st_size;
+else
+  *mbox_file_size = statbuf.st_size;
 
 OUT:
 if (data_file) (void)fclose(data_file);
@@ -193,20 +199,11 @@ return yield;
 
 
 
-/* remove mbox spool file, demimed files and temp directory */
 
+/* remove mbox spool file and temp directory */
 void
 unspool_mbox(void)
 {
-
-/* reset all exiscan state variables */
-#ifdef WITH_OLD_DEMIME
-demime_ok = 0;
-demime_errorlevel = 0;
-demime_reason = NULL;
-file_extensions = NULL;
-#endif
-
 spam_ok = 0;
 malware_ok = 0;
 
@@ -214,14 +211,12 @@ if (spool_mbox_ok && !no_mbox_unspool)
   {
   uschar *mbox_path;
   uschar *file_path;
-  int n;
   struct dirent *entry;
   DIR *tempdir;
 
   mbox_path = string_sprintf("%s/scan/%s", spool_directory, spooled_message_id);
 
-  tempdir = opendir(CS mbox_path);
-  if (!tempdir)
+  if (!(tempdir = opendir(CS mbox_path)))
     {
     debug_printf("Unable to opendir(%s): %s\n", mbox_path, strerror(errno));
     /* Just in case we still can: */
@@ -229,14 +224,15 @@ if (spool_mbox_ok && !no_mbox_unspool)
     return;
     }
   /* loop thru dir & delete entries */
-  while((entry = readdir(tempdir)) != NULL)
+  while((entry = readdir(tempdir)))
     {
     uschar *name = US entry->d_name;
+    int dummy;
     if (Ustrcmp(name, US".") == 0 || Ustrcmp(name, US"..") == 0) continue;
 
     file_path = string_sprintf("%s/%s", mbox_path, name);
     debug_printf("unspool_mbox(): unlinking '%s'\n", file_path);
-    n = unlink(CS file_path);
+    dummy = unlink(CS file_path); dummy = dummy;	/* compiler quietening */
     }
 
   closedir(tempdir);