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glibc/stdio-common/tst-perror.c
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/* Test of perror. | |
Contributed by Ulrich Drepper <drepper@redhat.com>, 2001. | |
To be used only for testing glibc. */ | |
#include <errno.h> | |
#include <error.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <unistd.h> | |
#include <wchar.h> | |
#define MB_EXP \ | |
"null mode test 1: Invalid or incomplete multibyte or wide character\n" \ | |
"multibyte string\n" \ | |
"<0 mode test: Invalid argument\n" | |
#define MB_EXP_LEN (sizeof (MB_EXP) - 1) | |
#define WC_EXP \ | |
"null mode test 2: Invalid or incomplete multibyte or wide character\n" \ | |
"wide string\n" \ | |
">0 mode test: Invalid argument\n" | |
#define WC_EXP_LEN (sizeof (WC_EXP) - 1) | |
static int | |
do_test (void) | |
{ | |
int fd; | |
char fname[] = "/tmp/tst-perror.XXXXXX"; | |
int result = 0; | |
char buf[200]; | |
ssize_t n; | |
fd = mkstemp (fname); | |
if (fd == -1) | |
error (EXIT_FAILURE, errno, "cannot create temporary file"); | |
/* Make sure the file gets removed. */ | |
unlink (fname); | |
fclose (stderr); | |
if (dup2 (fd, 2) == -1) | |
{ | |
printf ("cannot create file descriptor 2: %m\n"); | |
exit (EXIT_FAILURE); | |
} | |
stderr = fdopen (2, "w"); | |
if (stderr == NULL) | |
{ | |
printf ("fdopen failed: %m\n"); | |
exit (EXIT_FAILURE); | |
} | |
if (fwide (stderr, 0) != 0) | |
{ | |
printf ("stderr not initially in mode 0\n"); | |
exit (EXIT_FAILURE); | |
} | |
errno = EILSEQ; | |
perror ("null mode test 1"); | |
if (fwide (stderr, 0) != 0) | |
{ | |
puts ("perror changed the mode from 0"); | |
result = 1; | |
} | |
fputs ("multibyte string\n", stderr); | |
if (fwide (stderr, 0) >= 0) | |
{ | |
puts ("fputs didn't set orientation to narrow"); | |
result = 1; | |
} | |
errno = EINVAL; | |
perror ("<0 mode test"); | |
fclose (stderr); | |
lseek (fd, 0, SEEK_SET); | |
n = read (fd, buf, sizeof (buf)); | |
if (n != MB_EXP_LEN || memcmp (buf, MB_EXP, MB_EXP_LEN) != 0) | |
{ | |
printf ("multibyte test failed. Expected:\n%s\nGot:\n%.*s\n", | |
MB_EXP, (int) n, buf); | |
result = 1; | |
} | |
else | |
puts ("multibyte test succeeded"); | |
lseek (fd, 0, SEEK_SET); | |
ftruncate (fd, 0); | |
if (dup2 (fd, 2) == -1) | |
{ | |
printf ("cannot create file descriptor 2: %m\n"); | |
exit (EXIT_FAILURE); | |
} | |
stderr = fdopen (2, "w"); | |
if (stderr == NULL) | |
{ | |
printf ("fdopen failed: %m\n"); | |
exit (EXIT_FAILURE); | |
} | |
if (fwide (stderr, 0) != 0) | |
{ | |
printf ("stderr not initially in mode 0\n"); | |
exit (EXIT_FAILURE); | |
} | |
errno = EILSEQ; | |
perror ("null mode test 2"); | |
if (fwide (stderr, 0) != 0) | |
{ | |
puts ("perror changed the mode from 0"); | |
result = 1; | |
} | |
fputws (L"wide string\n", stderr); | |
if (fwide (stderr, 0) <= 0) | |
{ | |
puts ("fputws didn't set orientation to wide"); | |
result = 1; | |
} | |
errno = EINVAL; | |
perror (">0 mode test"); | |
fclose (stderr); | |
lseek (fd, 0, SEEK_SET); | |
n = read (fd, buf, sizeof (buf)); | |
if (n != WC_EXP_LEN || memcmp (buf, WC_EXP, WC_EXP_LEN) != 0) | |
{ | |
printf ("wide test failed. Expected:\n%s\nGot:\n%.*s\n", | |
WC_EXP, (int) n, buf); | |
result = 1; | |
} | |
else | |
puts ("wide test succeeded"); | |
close (fd); | |
return result; | |
} | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |