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glibc/io/tst-ttyname_r.c
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#include <errno.h> | |
#include <error.h> | |
#include <fcntl.h> | |
#include <stdio.h> | |
#include <unistd.h> | |
static void do_prepare (void); | |
#define PREPARE(argc, argv) do_prepare () | |
static int do_test (void); | |
#define TEST_FUNCTION do_test () | |
#include <test-skeleton.c> | |
static int temp_fd; | |
static void | |
do_prepare (void) | |
{ | |
char *temp_file; | |
temp_fd = create_temp_file ("tst-ttyname_r.", &temp_file); | |
if (temp_fd == -1) | |
error (1, errno, "cannot create temporary file"); | |
} | |
static int | |
do_test (void) | |
{ | |
int ret = 0; | |
char buf[sysconf (_SC_TTY_NAME_MAX) + 1]; | |
int res = ttyname_r (-1, buf, sizeof (buf)); | |
if (res != EBADF) | |
{ | |
printf ("1st ttyname_r returned with res %d\n", res); | |
ret++; | |
} | |
res = ttyname_r (temp_fd, buf, sizeof (buf)); | |
if (res != ENOTTY) | |
{ | |
printf ("2nd ttyname_r returned with res %d\n", res); | |
ret++; | |
} | |
return ret; | |
} |