Call initgroups() when dropping privilege, in order that Exim runs with

[exim.git] / src / src / match.c

diff --git a/src/src/match.c b/src/src/match.c
index ace8e016e4cfd0488e87f8ca483db7697bfd9bca..218944530acff9e7112e55996a0b1375a8ec4b00 100644 (file)
--- a/src/src/match.c
+++ b/src/src/match.c
@@ -1,10 +1,10 @@
-/* $Cambridge: exim/src/src/match.c,v 1.10 2005/09/12 14:03:42 ph10 Exp $ */
+/* $Cambridge: exim/src/src/match.c,v 1.14 2006/04/04 10:01:20 ph10 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2005 */
+/* Copyright (c) University of Cambridge 1995 - 2006 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Functions for matching strings */
@@ -425,7 +425,7 @@ Returns:       OK    if matched a non-negated item
                FAIL  if expansion force-failed
                FAIL  if matched a negated item
                FAIL  if hit end of list after a non-negated item
-               DEFER if a lookup deferred or expansion failed
+               DEFER if a something deferred or expansion failed
 */
 
 int
@@ -715,7 +715,7 @@ while ((sss = string_nextinlist(&list, &sep, buffer, sizeof(buffer))) != NULL)
         case ERROR:
         if (ignore_unknown)
           {
-          HDEBUG(D_lists) debug_printf("%s: item ignored by +ignore_unknown",
+          HDEBUG(D_lists) debug_printf("%s: item ignored by +ignore_unknown\n",
             error);
           }
         else
@@ -810,7 +810,7 @@ while ((sss = string_nextinlist(&list, &sep, buffer, sizeof(buffer))) != NULL)
         case ERROR:          /* host name lookup failed - this can only */
         if (ignore_unknown)  /* be for an incoming host (not outgoing) */
           {
-          HDEBUG(D_lists) debug_printf("%s: item ignored by +ignore_unknown",
+          HDEBUG(D_lists) debug_printf("%s: item ignored by +ignore_unknown\n",
             error);
           }
         else
@@ -844,10 +844,10 @@ HDEBUG(D_lists)
   debug_printf("%s %s (end of list)\n", ot, (yield == OK)? "no":"yes");
 return (yield == OK)? FAIL : OK;
 
-/* Handle lookup defer */
+/* Something deferred */
 
 DEFER_RETURN:
-HDEBUG(D_lists) debug_printf("%s lookup deferred for %s\n", ot, sss);
+HDEBUG(D_lists) debug_printf("%s list match deferred for %s\n", ot, sss);
 return DEFER;
 }
 
@@ -955,6 +955,20 @@ error = error;  /* Keep clever compilers from complaining */
 DEBUG(D_lists) debug_printf("address match: subject=%s pattern=%s\n",
   subject, pattern);
 
+/* Find the subject's domain */
+
+sdomain = Ustrrchr(subject, '@');
+
+/* The only case where a subject may not have a domain is if the subject is
+empty. Otherwise, a subject with no domain is a serious configuration error. */
+
+if (sdomain == NULL && *subject != 0)
+  {
+  log_write(0, LOG_MAIN|LOG_PANIC, "no @ found in the subject of an "
+    "address list match: subject=\"%s\" pattern=\"%s\"", subject, pattern);
+  return FAIL;
+  }
+
 /* Handle a regular expression, which must match the entire incoming address.
 This may be the empty address. */
 
@@ -989,10 +1003,6 @@ against. */
 
 if (*subject == 0) return (*pattern == 0)? OK : FAIL;
 
-/* Find the subject's domain */
-
-sdomain = Ustrrchr(subject, '@');
-
 /* If the pattern starts with "@@" we have a split lookup, where the domain is
 looked up to obtain a list of local parts. If the subject's local part is just
 "*" (called from retry) the match always fails. */