summaryrefslogtreecommitdiff
path: root/linuxthreads/tst-popen2.c
blob: 3ff69acd5249eecb764d47cea155784b0ed47ecf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
#include <errno.h>
#include <error.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

static void *
dummy (void *x)
{
  return NULL;
}

static char buf[sizeof "something\n"];

static int
do_test (void)
{
  FILE *f;
  pthread_t p;
  int err;

  f = popen ("echo something", "r");
  if (f == NULL)
    error (EXIT_FAILURE, errno, "popen failed");
  if (fgets (buf, sizeof (buf), f) == NULL)
    error (EXIT_FAILURE, 0, "fgets failed");
  if (strcmp (buf, "something\n"))
    error (EXIT_FAILURE, 0, "read wrong data");
  if (pclose (f))
    error (EXIT_FAILURE, errno, "pclose returned non-zero");
  if ((err = pthread_create (&p, NULL, dummy, NULL)))
    error (EXIT_FAILURE, err, "pthread_create failed");
  if ((err = pthread_join (p, NULL)))
    error (EXIT_FAILURE, err, "pthread_join failed");
  exit (0);
}

#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"