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tests/net-yy-netlink.c: robustify against libc specific issues

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* tests/net-yy-netlink.c (main): Use getsockname instead of recvmsg
as the latter has notible implementation differences that make
the test unreliable.
This commit is contained in:
Дмитрий Левин 2016-05-23 10:26:46 +00:00
parent 29df0351a9
commit 4ea65fb549
1 changed files with 10 additions and 10 deletions
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20
tests/net-yy-netlink.c
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@ -29,14 +29,12 @@
*/
#include "tests.h"
#include <assert.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/sock_diag.h>
@ -56,7 +54,6 @@ main(void)
};
struct sockaddr *const sa = tail_memdup(&addr, sizeof(addr));
socklen_t * const len = tail_alloc(sizeof(socklen_t));
struct msghdr *const mh = tail_alloc(sizeof(*mh));
*len = sizeof(addr);
const int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_SOCK_DIAG);
@ -68,15 +65,18 @@ main(void)
if (bind(fd, sa, *len))
perror_msg_and_skip("bind");
printf("bind(%d<NETLINK:[%lu]>, {sa_family=AF_NETLINK, pid=%u, "
"groups=00000000}, %u) = 0\n", fd, inode, magic,
(unsigned) *len);
printf("bind(%d<NETLINK:[%lu]>, {sa_family=AF_NETLINK"
", pid=%u, groups=00000000}, %u) = 0\n",
fd, inode, magic, (unsigned) *len);
assert(recvmsg(fd, mh, MSG_DONTWAIT) == -1);
printf("recvmsg(%d<NETLINK:[SOCK_DIAG:%u]>, %p, MSG_DONTWAIT)"
" = -1 %s (%m)\n", fd, magic, mh, errno2name());
if (getsockname(fd, sa, len))
perror_msg_and_fail("getsockname");
printf("getsockname(%d<NETLINK:[SOCK_DIAG:%u]>, {sa_family=AF_NETLINK"
", pid=%u, groups=00000000}, [%u]) = 0\n",
fd, magic, magic, (unsigned) *len);
assert(close(fd) == 0);
if (close(fd))
perror_msg_and_fail("close");
printf("close(%d<NETLINK:[SOCK_DIAG:%u]>) = 0\n", fd, magic);
puts("+++ exited with 0 +++");