mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-18 05:53:36 +08:00
37f02b1da5
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>
|
|
#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;
|
|
}
|