glibc/login/tst-grantpt.c

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#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
static int
test_ebadf (void)
{
int fd, ret, err;
fd = posix_openpt (O_RDWR);
if (fd == -1)
{
printf ("posix_openpt(O_RDWR) failed\nerrno %d (%s)\n",
errno, strerror (errno));
/* We don't fail because of this; maybe the system does not have
SUS pseudo terminals. */
return 0;
}
unlockpt (fd);
close (fd);
ret = grantpt (fd);
err = errno;
if (ret != -1 || err != EBADF)
{
printf ("grantpt(): expected: return = %d, errno = %d\n", -1, EBADF);
printf (" got: return = %d, errno = %d\n", ret, err);
return 1;
}
return 0;
}
static int
test_einval (void)
{
int fd, ret, err;
const char file[] = "./grantpt-einval";
fd = open (file, O_RDWR | O_CREAT);
if (fd == -1)
{
printf ("open(\"%s\", O_RDWR) failed\nerrno %d (%s)\n",
file, errno, strerror (errno));
return 0;
}
unlink (file);
ret = grantpt (fd);
err = errno;
if (ret != -1 || err != EINVAL)
{
printf ("grantpt(): expected: return = %d, errno = %d\n", -1, EINVAL);
printf (" got: return = %d, errno = %d\n", ret, err);
ret = 1;
}
else
ret = 0;
close (fd);
return ret;
}
int
main (void)
{
int result = 0;
result += test_ebadf ();
result += test_einval ();
return result;
}