From: Travis Cross <tc@traviscross.com>
Date: Sun, 3 Feb 2013 19:55:50 +0000 (+0000)
Subject: Resolve -Wnull-dereference clang warning
X-Git-Tag: v0.83~17
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f32b53b1dbb79a41c3ebdf6102231282a76d212f;p=thirdparty%2Fmtr.git

Resolve -Wnull-dereference clang warning

Clang will simply delete the indirection of the non-volatile null
pointer.
---

diff --git a/dns.c b/dns.c
index 512da97..6a76bc1 100644
--- a/dns.c
+++ b/dns.c
@@ -371,12 +371,12 @@ void statfree(void *p)
   if (p) {
     if (*((dword *)p - HEAD_SLACK) == 0) {
       fprintf(stderr,"ERROR: Attempt to free pointer twice.\n");
-      *(int*)0=0;
+      abort();
       exit(-1);
     } else {
       if (*((dword *)p - HEAD_SLACK) > 8192) {
 	fprintf (stderr,"ERROR: Corrupted free() buffer. (header)\n");
-	*(int*)0=0;
+        abort();
 	exit(-1);
       }
 #ifdef CorruptCheck
@@ -385,7 +385,7 @@ void statfree(void *p)
 	  (*(byte *)((char *)p + (*((dword *)p - 1)) + sizeof(byte) * 2) != 0xbe) ||
 	  (*(byte *)((char *)p + (*((dword *)p - 1)) + sizeof(byte) * 3) != 0xef)) {
 	fprintf(stderr,"ERROR: Corrupted free() buffer. (footer)\n");
-	*(int*)0=0;
+	abort();
 	exit(-1);
       }
 #endif