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