if_indextoname.cc revision 7c9150579ed0278492f51cc8434b1d63a44b9bd1 
1// RUN: %clangxx_msan -O0 %s -o %t && %run %t 2>&1
2// RUN: %clangxx_msan -O0 -D_FILE_OFFSET_BITS=64 %s -o %t && %run %t 2>&1
3// RUN: %clangxx_msan -O3 %s -o %t && %run %t 2>&1
4
5#include <assert.h>
6#include <errno.h>
7#include <net/if.h>
8#include <stdio.h>
9#include <string.h>
10
11#include <sanitizer/msan_interface.h>
12
13int main(int argc, char *argv[]) {
14  char ifname[IF_NAMESIZE + 1];
15  assert(0 == __msan_test_shadow(ifname, sizeof(ifname)));
16  if (!if_indextoname(1, ifname)) {
17    assert(errno == ENXIO);
18    printf("No network interfaces found.\n");
19    return 0;
20  }
21  assert(strlen(ifname) + 1 == __msan_test_shadow(ifname, sizeof(ifname)));
22  return 0;
23}
24