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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.
112 lines
2.4 KiB
C
112 lines
2.4 KiB
C
#include <arpa/inet.h>
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#include <errno.h>
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#include <netinet/in.h>
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#include <stdio.h>
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#include <string.h>
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int
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main (void)
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{
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struct in_addr addr4;
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struct in6_addr addr6;
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char buf[64];
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int result = 0;
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addr4.s_addr = 0xe0e0e0e0;
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addr6.s6_addr16[0] = 0;
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addr6.s6_addr16[1] = 0;
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addr6.s6_addr16[2] = 0;
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addr6.s6_addr16[3] = 0;
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addr6.s6_addr16[4] = 0;
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addr6.s6_addr16[5] = 0xffff;
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addr6.s6_addr32[3] = 0xe0e0e0e0;
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memset (buf, 'x', sizeof buf);
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if (inet_ntop (AF_INET, &addr4, buf, 15) != NULL)
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{
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puts ("1st inet_ntop returned non-NULL");
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result++;
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}
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else if (errno != ENOSPC)
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{
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puts ("1st inet_ntop didn't fail with ENOSPC");
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result++;
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}
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if (buf[15] != 'x')
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{
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puts ("1st inet_ntop wrote past the end of buffer");
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result++;
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}
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if (inet_ntop (AF_INET, &addr4, buf, 16) != buf)
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{
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puts ("2nd inet_ntop did not return buf");
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result++;
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}
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if (memcmp (buf, "224.224.224.224\0" "xxxxxxxx", 24) != 0)
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{
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puts ("2nd inet_ntop wrote past the end of buffer");
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result++;
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}
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if (inet_ntop (AF_INET6, &addr6, buf, 22) != NULL)
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{
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puts ("3rd inet_ntop returned non-NULL");
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result++;
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}
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else if (errno != ENOSPC)
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{
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puts ("3rd inet_ntop didn't fail with ENOSPC");
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result++;
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}
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if (buf[22] != 'x')
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{
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puts ("3rd inet_ntop wrote past the end of buffer");
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result++;
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}
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if (inet_ntop (AF_INET6, &addr6, buf, 23) != buf)
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{
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puts ("4th inet_ntop did not return buf");
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result++;
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}
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if (memcmp (buf, "::ffff:224.224.224.224\0" "xxxxxxxx", 31) != 0)
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{
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puts ("4th inet_ntop wrote past the end of buffer");
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result++;
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}
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memset (&addr6.s6_addr, 0xe0, sizeof (addr6.s6_addr));
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if (inet_ntop (AF_INET6, &addr6, buf, 39) != NULL)
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{
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puts ("5th inet_ntop returned non-NULL");
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result++;
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}
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else if (errno != ENOSPC)
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{
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puts ("5th inet_ntop didn't fail with ENOSPC");
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result++;
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}
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if (buf[39] != 'x')
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{
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puts ("5th inet_ntop wrote past the end of buffer");
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result++;
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}
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if (inet_ntop (AF_INET6, &addr6, buf, 40) != buf)
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{
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puts ("6th inet_ntop did not return buf");
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result++;
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}
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if (memcmp (buf, "e0e0:e0e0:e0e0:e0e0:e0e0:e0e0:e0e0:e0e0\0"
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"xxxxxxxx", 48) != 0)
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{
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puts ("6th inet_ntop wrote past the end of buffer");
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result++;
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}
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return result;
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}
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