diff options
Diffstat (limited to 'stdio-common/tst-perror.c')
-rw-r--r-- | stdio-common/tst-perror.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/stdio-common/tst-perror.c b/stdio-common/tst-perror.c new file mode 100644 index 0000000..b809c2f --- /dev/null +++ b/stdio-common/tst-perror.c @@ -0,0 +1,154 @@ +/* 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) + + +int +main (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; +} |