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glibc/libio/tst-widetext.c
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/* Test program for the wide character stream functions handling larger | |
amounts of text. | |
Copyright (C) 2000-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Ulrich Drepper <drepper@cygnus.com>. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#include <assert.h> | |
#include <iconv.h> | |
#include <locale.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <unistd.h> | |
#include <wchar.h> | |
/* Approximate size of the file (must be larger). */ | |
#define SIZE 210000 | |
static int | |
do_test (void) | |
{ | |
char name[] = "/tmp/widetext.out.XXXXXX"; | |
char mbbuf[SIZE]; | |
char mb2buf[SIZE]; | |
wchar_t wcbuf[SIZE]; | |
wchar_t wc2buf[SIZE]; | |
size_t mbsize; | |
size_t wcsize; | |
int fd; | |
FILE *fp; | |
size_t n; | |
int res; | |
int status = 0; | |
wchar_t *wcp; | |
setlocale (LC_ALL, "de_DE.UTF-8"); | |
printf ("locale used: %s\n\n", setlocale (LC_ALL, NULL)); | |
/* Read the file into memory. */ | |
mbsize = fread (mbbuf, 1, SIZE, stdin); | |
if (mbsize == 0) | |
{ | |
printf ("%u: cannot read input file from standard input: %m\n", | |
__LINE__); | |
exit (1); | |
} | |
printf ("INFO: input file has %Zd bytes\n", mbsize); | |
/* First convert the text to wide characters. We use iconv here. */ | |
{ | |
iconv_t cd; | |
char *inbuf = mbbuf; | |
size_t inleft = mbsize; | |
char *outbuf = (char *) wcbuf; | |
size_t outleft = sizeof (wcbuf); | |
size_t nonr; | |
cd = iconv_open ("WCHAR_T", "UTF-8"); | |
if (cd == (iconv_t) -1) | |
{ | |
printf ("%u: cannot get iconv descriptor for conversion to UCS4\n", | |
__LINE__); | |
exit (1); | |
} | |
/* We must need only one call and there must be no losses. */ | |
nonr = iconv (cd, &inbuf, &inleft, &outbuf, &outleft); | |
if (nonr != 0 && nonr != (size_t) -1) | |
{ | |
printf ("%u: iconv performed %Zd nonreversible conversions\n", | |
__LINE__, nonr); | |
exit (1); | |
} | |
if (nonr == (size_t) -1) | |
{ | |
printf ("\ | |
%u: iconv returned with %Zd and errno = %m (inleft: %Zd, outleft: %Zd)\n", | |
__LINE__, nonr, inleft, outleft); | |
exit (1); | |
} | |
if (inleft != 0) | |
{ | |
printf ("%u: iconv didn't convert all input\n", __LINE__); | |
exit (1); | |
} | |
iconv_close (cd); | |
if ((sizeof (wcbuf) - outleft) % sizeof (wchar_t) != 0) | |
{ | |
printf ("%u: iconv converted not complete wchar_t\n", __LINE__); | |
exit (1); | |
} | |
wcsize = (sizeof (wcbuf) - outleft) / sizeof (wchar_t); | |
assert (wcsize + 1 <= SIZE); | |
} | |
/* Now that we finished the preparations, run the first test. We | |
are writing the wide char data out and read it back in. We write | |
and read single characters. */ | |
fd = mkstemp (name); | |
if (fd == -1) | |
{ | |
printf ("%u: cannot open temporary file: %m\n", __LINE__); | |
exit (1); | |
} | |
unlink (name); | |
fp = fdopen (dup (fd), "w"); | |
if (fp == NULL) | |
{ | |
printf ("%u: fdopen of temp file for writing failed: %m\n", __LINE__); | |
exit (1); | |
} | |
for (n = 0; n < wcsize; ++n) | |
{ | |
if (fputwc (wcbuf[n], fp) == WEOF) | |
{ | |
printf ("%u: fputwc failed: %m\n", __LINE__); | |
exit (1); | |
} | |
} | |
res = fclose (fp); | |
if (res != 0) | |
{ | |
printf ("%u: fclose after single-character writing failed (%d): %m\n", | |
__LINE__, res); | |
exit (1); | |
} | |
lseek (fd, SEEK_SET, 0); | |
fp = fdopen (dup (fd), "r"); | |
if (fp == NULL) | |
{ | |
printf ("%u: fdopen of temp file for reading failed: %m\n", __LINE__); | |
exit (1); | |
} | |
for (n = 0; n < wcsize; ++n) | |
{ | |
wint_t wch = fgetwc (fp); | |
if (wch == WEOF) | |
{ | |
printf ("%u: fgetwc failed (idx %Zd): %m\n", __LINE__, n); | |
exit (1); | |
} | |
wc2buf[n] = wch; | |
} | |
/* There should be nothing else. */ | |
if (fgetwc (fp) != WEOF) | |
{ | |
printf ("%u: too many characters available with fgetwc\n", __LINE__); | |
status = 1; | |
} | |
else if (wmemcmp (wcbuf, wc2buf, wcsize) != 0) | |
{ | |
printf ("%u: buffer read with fgetwc differs\n", __LINE__); | |
status = 1; | |
} | |
res = fclose (fp); | |
if (res != 0) | |
{ | |
printf ("%u: fclose after single-character reading failed (%d): %m\n", | |
__LINE__, res); | |
exit (1); | |
} | |
/* Just make sure there are no two errors which hide each other, read the | |
file using the `char' functions. */ | |
lseek (fd, SEEK_SET, 0); | |
fp = fdopen (fd, "r"); | |
if (fp == NULL) | |
{ | |
printf ("%u: fdopen of temp file for reading failed: %m\n", __LINE__); | |
exit (1); | |
} | |
if (fread (mb2buf, 1, mbsize, fp) != mbsize) | |
{ | |
printf ("%u: cannot read all of the temp file\n", __LINE__); | |
status = 1; | |
} | |
else | |
{ | |
/* Make sure there is nothing left. */ | |
if (fgetc (fp) != EOF) | |
{ | |
printf ("%u: more input available\n", __LINE__); | |
status = 1; | |
} | |
if (memcmp (mb2buf, mbbuf, mbsize) != 0) | |
{ | |
printf ("%u: buffer written with fputwc differs\n", __LINE__); | |
status = 1; | |
} | |
} | |
res = fclose (fp); | |
if (res != 0) | |
{ | |
printf ("%u: fclose after single-character reading failed (%d): %m\n", | |
__LINE__, res); | |
exit (1); | |
} | |
/* Now to reading and writing line-wise. */ | |
fd = mkstemp (strcpy (name, "/tmp/widetext.out.XXXXXX")); | |
if (fd == -1) | |
{ | |
printf ("%u: cannot open temporary file: %m\n", __LINE__); | |
exit (1); | |
} | |
unlink (name); | |
fp = fdopen (dup (fd), "w"); | |
if (fp == NULL) | |
{ | |
printf ("%u: fdopen of temp file for writing failed: %m\n", __LINE__); | |
exit (1); | |
} | |
for (wcp = wcbuf; wcp < &wcbuf[wcsize]; ) | |
{ | |
wchar_t *wendp = wcschr (wcp, L'\n'); | |
if (wendp != NULL) | |
{ | |
/* Temporarily NUL terminate the line. */ | |
wchar_t save = wendp[1]; | |
wendp[1] = L'\0'; | |
fputws (wcp, fp); | |
wendp[1] = save; | |
wcp = &wendp[1]; | |
} | |
else | |
{ | |
fputws (wcp, fp); | |
wcp = wcschr (wcp, L'\0'); | |
assert (wcp == &wcbuf[wcsize]); | |
} | |
} | |
res = fclose (fp); | |
if (res != 0) | |
{ | |
printf ("%u: fclose after line-wise writing failed (%d): %m\n", | |
__LINE__, res); | |
exit (1); | |
} | |
lseek (fd, SEEK_SET, 0); | |
fp = fdopen (dup (fd), "r"); | |
if (fp == NULL) | |
{ | |
printf ("%u: fdopen of temp file for reading failed: %m\n", __LINE__); | |
exit (1); | |
} | |
for (wcp = wc2buf; wcp < &wc2buf[wcsize]; ) | |
{ | |
if (fgetws (wcp, &wc2buf[wcsize] - wcp + 1, fp) == NULL) | |
{ | |
printf ("%u: short read using fgetws (only %td of %Zd)\n", | |
__LINE__, wcp - wc2buf, wcsize); | |
status = 1; | |
break; | |
} | |
wcp = wcschr (wcp, L'\0'); | |
} | |
if (wcp > &wc2buf[wcsize]) | |
{ | |
printf ("%u: fgetws read too much\n", __LINE__); | |
status = 1; | |
} | |
else if (fgetwc (fp) != WEOF) | |
{ | |
/* There should be nothing else. */ | |
printf ("%u: too many characters available with fgetws\n", __LINE__); | |
status = 1; | |
} | |
if (wcp >= &wc2buf[wcsize] && wmemcmp (wcbuf, wc2buf, wcsize) != 0) | |
{ | |
printf ("%u: buffer read with fgetws differs\n", __LINE__); | |
status = 1; | |
} | |
res = fclose (fp); | |
if (res != 0) | |
{ | |
printf ("%u: fclose after single-character reading failed (%d): %m\n", | |
__LINE__, res); | |
exit (1); | |
} | |
/* Just make sure there are no two errors which hide each other, read the | |
file using the `char' functions. */ | |
lseek (fd, SEEK_SET, 0); | |
fp = fdopen (fd, "r"); | |
if (fp == NULL) | |
{ | |
printf ("%u: fdopen of temp file for reading failed: %m\n", __LINE__); | |
exit (1); | |
} | |
if (fread (mb2buf, 1, mbsize, fp) != mbsize) | |
{ | |
printf ("%u: cannot read all of the temp file\n", __LINE__); | |
status = 1; | |
} | |
else | |
{ | |
/* Make sure there is nothing left. */ | |
if (fgetc (fp) != EOF) | |
{ | |
printf ("%u: more input available\n", __LINE__); | |
status = 1; | |
} | |
if (memcmp (mb2buf, mbbuf, mbsize) != 0) | |
{ | |
printf ("%u: buffer written with fputws differs\n", __LINE__); | |
status = 1; | |
} | |
} | |
res = fclose (fp); | |
if (res != 0) | |
{ | |
printf ("%u: fclose after single-character reading failed (%d): %m\n", | |
__LINE__, res); | |
exit (1); | |
} | |
return status; | |
} | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |