glibc/tests/Regression/bz1022022-getaddrinfo-behavior-changed-between-RHEL-6-4-and-RHEL-6-5/tst-getaddrinfo.c
Sergey Kolosov ab4bc8a24e Extend the test coverage
Move some of the RHEL QE testcases upstream to Fedora.
2022-05-31 09:29:27 +02:00

68 lines
1.5 KiB
C

#include <sys/socket.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
#include <netdb.h>
#include <string.h>
#include <stdlib.h>
#define SIZE 4096
#define exit_code_func_msg(c,f,m) \
do \
{ \
printf ("error %d: %s: %s\n", c, f, m); \
exit (1); \
} \
while (0)
static void
get_canon_name (char *hostname, int af)
{
struct addrinfo hints, *result, *current;
int error;
memset (&hints, 0, sizeof (hints));
hints.ai_family = af;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_CANONNAME;
error = getaddrinfo (hostname, NULL, &hints, &result);
if (error != 0)
exit_code_func_msg (error, "getaddrinfo", gai_strerror (error));
if (result->ai_canonname == NULL)
exit_code_func_msg (-1, "getaddrinfo", "No canonical name returned");
for (current = result;
current != NULL && current->ai_canonname != NULL;
current = current->ai_next)
printf ("%s\n", current->ai_canonname);
freeaddrinfo (result);
return;
}
int
main (int argc, char **argv)
{
char hostname[SIZE];
int error;
error = gethostname (hostname, SIZE);
if (error)
exit_code_func_msg (error, "gethostname", "");
printf ("%s\n", hostname);
get_canon_name (hostname, AF_INET);
get_canon_name (hostname, AF_INET6);
get_canon_name (hostname, AF_UNSPEC);
return 0;
}