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authorUlrich Drepper <drepper@redhat.com>2007-04-30 22:30:14 +0000
committerUlrich Drepper <drepper@redhat.com>2007-04-30 22:30:14 +0000
commit37f02b1da57eb6807e849a5056bf973db840dd78 (patch)
tree5e68f223db4b38a8c829f6b6737140acf7b31ee7 /resolv/tst-inet_ntop.c
parent7ecfbd386a340b52b6491f47fcf37f236cc5eaf1 (diff)
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[BZ #4439]
2007-04-30 Jakub Jelinek <jakub@redhat.com> [BZ #4439] * resolv/inet_ntop.c (inet_ntop4): Take terminating '\0' into account in the size check. * resolv/tst-inet_ntop.c: New test. * resolv/Makefile (tests): Add tst-inet_ntop.
Diffstat (limited to 'resolv/tst-inet_ntop.c')
-rw-r--r--resolv/tst-inet_ntop.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/resolv/tst-inet_ntop.c b/resolv/tst-inet_ntop.c
new file mode 100644
index 0000000..a042c74
--- /dev/null
+++ b/resolv/tst-inet_ntop.c
@@ -0,0 +1,111 @@
+#include <arpa/inet.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <string.h>
+
+int
+main (void)
+{
+ struct in_addr addr4;
+ struct in6_addr addr6;
+ char buf[64];
+ int result = 0;
+
+ addr4.s_addr = 0xe0e0e0e0;
+ addr6.s6_addr16[0] = 0;
+ addr6.s6_addr16[1] = 0;
+ addr6.s6_addr16[2] = 0;
+ addr6.s6_addr16[3] = 0;
+ addr6.s6_addr16[4] = 0;
+ addr6.s6_addr16[5] = 0xffff;
+ addr6.s6_addr32[3] = 0xe0e0e0e0;
+ memset (buf, 'x', sizeof buf);
+
+ if (inet_ntop (AF_INET, &addr4, buf, 15) != NULL)
+ {
+ puts ("1st inet_ntop returned non-NULL");
+ result++;
+ }
+ else if (errno != ENOSPC)
+ {
+ puts ("1st inet_ntop didn't fail with ENOSPC");
+ result++;
+ }
+ if (buf[15] != 'x')
+ {
+ puts ("1st inet_ntop wrote past the end of buffer");
+ result++;
+ }
+
+ if (inet_ntop (AF_INET, &addr4, buf, 16) != buf)
+ {
+ puts ("2nd inet_ntop did not return buf");
+ result++;
+ }
+ if (memcmp (buf, "224.224.224.224\0" "xxxxxxxx", 24) != 0)
+ {
+ puts ("2nd inet_ntop wrote past the end of buffer");
+ result++;
+ }
+
+ if (inet_ntop (AF_INET6, &addr6, buf, 22) != NULL)
+ {
+ puts ("3rd inet_ntop returned non-NULL");
+ result++;
+ }
+ else if (errno != ENOSPC)
+ {
+ puts ("3rd inet_ntop didn't fail with ENOSPC");
+ result++;
+ }
+ if (buf[22] != 'x')
+ {
+ puts ("3rd inet_ntop wrote past the end of buffer");
+ result++;
+ }
+
+ if (inet_ntop (AF_INET6, &addr6, buf, 23) != buf)
+ {
+ puts ("4th inet_ntop did not return buf");
+ result++;
+ }
+ if (memcmp (buf, "::ffff:224.224.224.224\0" "xxxxxxxx", 31) != 0)
+ {
+ puts ("4th inet_ntop wrote past the end of buffer");
+ result++;
+ }
+
+ memset (&addr6.s6_addr, 0xe0, sizeof (addr6.s6_addr));
+
+ if (inet_ntop (AF_INET6, &addr6, buf, 39) != NULL)
+ {
+ puts ("5th inet_ntop returned non-NULL");
+ result++;
+ }
+ else if (errno != ENOSPC)
+ {
+ puts ("5th inet_ntop didn't fail with ENOSPC");
+ result++;
+ }
+ if (buf[39] != 'x')
+ {
+ puts ("5th inet_ntop wrote past the end of buffer");
+ result++;
+ }
+
+ if (inet_ntop (AF_INET6, &addr6, buf, 40) != buf)
+ {
+ puts ("6th inet_ntop did not return buf");
+ result++;
+ }
+ if (memcmp (buf, "e0e0:e0e0:e0e0:e0e0:e0e0:e0e0:e0e0:e0e0\0"
+ "xxxxxxxx", 48) != 0)
+ {
+ puts ("6th inet_ntop wrote past the end of buffer");
+ result++;
+ }
+
+
+ return result;
+}