mirror of
https://sourceware.org/git/glibc.git
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372 lines
8.4 KiB
C
372 lines
8.4 KiB
C
/* Test program for the wide character stream functions handling larger
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amounts of text.
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Copyright (C) 2000-2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <assert.h>
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#include <iconv.h>
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#include <locale.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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/* Approximate size of the file (must be larger). */
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#define SIZE 210000
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static int
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do_test (void)
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{
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char name[] = "/tmp/widetext.out.XXXXXX";
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char mbbuf[SIZE];
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char mb2buf[SIZE];
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wchar_t wcbuf[SIZE];
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wchar_t wc2buf[SIZE];
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size_t mbsize;
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size_t wcsize;
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int fd;
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FILE *fp;
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size_t n;
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int res;
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int status = 0;
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wchar_t *wcp;
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setlocale (LC_ALL, "de_DE.UTF-8");
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printf ("locale used: %s\n\n", setlocale (LC_ALL, NULL));
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/* Read the file into memory. */
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mbsize = fread (mbbuf, 1, SIZE, stdin);
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if (mbsize == 0)
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{
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printf ("%u: cannot read input file from standard input: %m\n",
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__LINE__);
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exit (1);
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}
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printf ("INFO: input file has %zd bytes\n", mbsize);
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/* First convert the text to wide characters. We use iconv here. */
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{
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iconv_t cd;
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char *inbuf = mbbuf;
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size_t inleft = mbsize;
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char *outbuf = (char *) wcbuf;
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size_t outleft = sizeof (wcbuf);
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size_t nonr;
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cd = iconv_open ("WCHAR_T", "UTF-8");
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if (cd == (iconv_t) -1)
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{
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printf ("%u: cannot get iconv descriptor for conversion to UCS4\n",
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__LINE__);
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exit (1);
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}
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/* We must need only one call and there must be no losses. */
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nonr = iconv (cd, &inbuf, &inleft, &outbuf, &outleft);
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if (nonr != 0 && nonr != (size_t) -1)
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{
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printf ("%u: iconv performed %zd nonreversible conversions\n",
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__LINE__, nonr);
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exit (1);
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}
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if (nonr == (size_t) -1)
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{
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printf ("\
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%u: iconv returned with %zd and errno = %m (inleft: %zd, outleft: %zd)\n",
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__LINE__, nonr, inleft, outleft);
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exit (1);
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}
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if (inleft != 0)
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{
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printf ("%u: iconv didn't convert all input\n", __LINE__);
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exit (1);
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}
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iconv_close (cd);
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if ((sizeof (wcbuf) - outleft) % sizeof (wchar_t) != 0)
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{
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printf ("%u: iconv converted not complete wchar_t\n", __LINE__);
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exit (1);
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}
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wcsize = (sizeof (wcbuf) - outleft) / sizeof (wchar_t);
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assert (wcsize + 1 <= SIZE);
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}
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/* Now that we finished the preparations, run the first test. We
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are writing the wide char data out and read it back in. We write
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and read single characters. */
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fd = mkstemp (name);
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if (fd == -1)
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{
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printf ("%u: cannot open temporary file: %m\n", __LINE__);
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exit (1);
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}
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unlink (name);
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fp = fdopen (dup (fd), "w");
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if (fp == NULL)
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{
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printf ("%u: fdopen of temp file for writing failed: %m\n", __LINE__);
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exit (1);
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}
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for (n = 0; n < wcsize; ++n)
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{
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if (fputwc (wcbuf[n], fp) == WEOF)
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{
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printf ("%u: fputwc failed: %m\n", __LINE__);
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exit (1);
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}
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}
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res = fclose (fp);
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if (res != 0)
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{
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printf ("%u: fclose after single-character writing failed (%d): %m\n",
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__LINE__, res);
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exit (1);
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}
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lseek (fd, SEEK_SET, 0);
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fp = fdopen (dup (fd), "r");
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if (fp == NULL)
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{
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printf ("%u: fdopen of temp file for reading failed: %m\n", __LINE__);
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exit (1);
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}
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for (n = 0; n < wcsize; ++n)
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{
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wint_t wch = fgetwc (fp);
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if (wch == WEOF)
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{
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printf ("%u: fgetwc failed (idx %zd): %m\n", __LINE__, n);
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exit (1);
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}
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wc2buf[n] = wch;
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}
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/* There should be nothing else. */
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if (fgetwc (fp) != WEOF)
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{
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printf ("%u: too many characters available with fgetwc\n", __LINE__);
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status = 1;
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}
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else if (wmemcmp (wcbuf, wc2buf, wcsize) != 0)
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{
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printf ("%u: buffer read with fgetwc differs\n", __LINE__);
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status = 1;
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}
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res = fclose (fp);
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if (res != 0)
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{
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printf ("%u: fclose after single-character reading failed (%d): %m\n",
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__LINE__, res);
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exit (1);
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}
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/* Just make sure there are no two errors which hide each other, read the
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file using the `char' functions. */
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lseek (fd, SEEK_SET, 0);
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fp = fdopen (fd, "r");
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if (fp == NULL)
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{
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printf ("%u: fdopen of temp file for reading failed: %m\n", __LINE__);
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exit (1);
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}
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if (fread (mb2buf, 1, mbsize, fp) != mbsize)
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{
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printf ("%u: cannot read all of the temp file\n", __LINE__);
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status = 1;
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}
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else
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{
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/* Make sure there is nothing left. */
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if (fgetc (fp) != EOF)
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{
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printf ("%u: more input available\n", __LINE__);
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status = 1;
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}
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if (memcmp (mb2buf, mbbuf, mbsize) != 0)
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{
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printf ("%u: buffer written with fputwc differs\n", __LINE__);
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status = 1;
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}
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}
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res = fclose (fp);
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if (res != 0)
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{
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printf ("%u: fclose after single-character reading failed (%d): %m\n",
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__LINE__, res);
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exit (1);
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}
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/* Now to reading and writing line-wise. */
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fd = mkstemp (strcpy (name, "/tmp/widetext.out.XXXXXX"));
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if (fd == -1)
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{
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printf ("%u: cannot open temporary file: %m\n", __LINE__);
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exit (1);
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}
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unlink (name);
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fp = fdopen (dup (fd), "w");
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if (fp == NULL)
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{
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printf ("%u: fdopen of temp file for writing failed: %m\n", __LINE__);
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exit (1);
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}
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for (wcp = wcbuf; wcp < &wcbuf[wcsize]; )
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{
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wchar_t *wendp = wcschr (wcp, L'\n');
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if (wendp != NULL)
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{
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/* Temporarily NUL terminate the line. */
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wchar_t save = wendp[1];
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wendp[1] = L'\0';
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fputws (wcp, fp);
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wendp[1] = save;
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wcp = &wendp[1];
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}
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else
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{
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fputws (wcp, fp);
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wcp = wcschr (wcp, L'\0');
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assert (wcp == &wcbuf[wcsize]);
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}
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}
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res = fclose (fp);
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if (res != 0)
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{
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printf ("%u: fclose after line-wise writing failed (%d): %m\n",
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__LINE__, res);
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exit (1);
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}
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lseek (fd, SEEK_SET, 0);
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fp = fdopen (dup (fd), "r");
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if (fp == NULL)
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{
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printf ("%u: fdopen of temp file for reading failed: %m\n", __LINE__);
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exit (1);
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}
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for (wcp = wc2buf; wcp < &wc2buf[wcsize]; )
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{
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if (fgetws (wcp, &wc2buf[wcsize] - wcp + 1, fp) == NULL)
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{
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printf ("%u: short read using fgetws (only %td of %zd)\n",
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__LINE__, wcp - wc2buf, wcsize);
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status = 1;
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break;
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}
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wcp = wcschr (wcp, L'\0');
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}
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if (wcp > &wc2buf[wcsize])
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{
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printf ("%u: fgetws read too much\n", __LINE__);
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status = 1;
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}
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else if (fgetwc (fp) != WEOF)
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{
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/* There should be nothing else. */
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printf ("%u: too many characters available with fgetws\n", __LINE__);
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status = 1;
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}
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if (wcp >= &wc2buf[wcsize] && wmemcmp (wcbuf, wc2buf, wcsize) != 0)
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{
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printf ("%u: buffer read with fgetws differs\n", __LINE__);
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status = 1;
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}
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res = fclose (fp);
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if (res != 0)
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{
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printf ("%u: fclose after single-character reading failed (%d): %m\n",
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__LINE__, res);
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exit (1);
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}
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/* Just make sure there are no two errors which hide each other, read the
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file using the `char' functions. */
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lseek (fd, SEEK_SET, 0);
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fp = fdopen (fd, "r");
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if (fp == NULL)
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{
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printf ("%u: fdopen of temp file for reading failed: %m\n", __LINE__);
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exit (1);
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}
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if (fread (mb2buf, 1, mbsize, fp) != mbsize)
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{
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printf ("%u: cannot read all of the temp file\n", __LINE__);
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status = 1;
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}
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else
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{
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/* Make sure there is nothing left. */
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if (fgetc (fp) != EOF)
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{
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printf ("%u: more input available\n", __LINE__);
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status = 1;
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}
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if (memcmp (mb2buf, mbbuf, mbsize) != 0)
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{
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printf ("%u: buffer written with fputws differs\n", __LINE__);
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status = 1;
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}
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}
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res = fclose (fp);
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if (res != 0)
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{
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printf ("%u: fclose after single-character reading failed (%d): %m\n",
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__LINE__, res);
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exit (1);
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}
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return status;
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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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