vasilito
facf0c92e0
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
139 lines
3.5 KiB
C
139 lines
3.5 KiB
C
/* Test of perror() function.
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Copyright (C) 2011-2024 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3, or (at your option)
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any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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/* Tell GCC not to warn about myerr being leaked. */
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#if __GNUC__ >= 13
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# pragma GCC diagnostic ignored "-Wanalyzer-fd-leak"
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#endif
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/* This test intentionally parses stderr. So, we arrange to have fd 10
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(outside the range of interesting fd's during the test) set up to
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duplicate the original stderr. */
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#define BACKUP_STDERR_FILENO 10
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#define ASSERT_STREAM myerr
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#include "macros.h"
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static FILE *myerr;
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#define BASE "test-perror2"
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int
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main (void)
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{
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/* We change fd 2 later, so save it in fd 10. */
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if (dup2 (STDERR_FILENO, BACKUP_STDERR_FILENO) != BACKUP_STDERR_FILENO
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|| (myerr = fdopen (BACKUP_STDERR_FILENO, "w")) == NULL)
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return 2;
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ASSERT (freopen (BASE ".tmp", "w+", stderr) == stderr);
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/* Test that perror does not clobber strerror buffer. */
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{
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const char *msg1;
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const char *msg2;
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const char *msg3;
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const char *msg4;
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char *str1;
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char *str2;
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char *str3;
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char *str4;
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msg1 = strerror (ENOENT);
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ASSERT (msg1);
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str1 = strdup (msg1);
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ASSERT (str1);
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msg2 = strerror (ERANGE);
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ASSERT (msg2);
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str2 = strdup (msg2);
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ASSERT (str2);
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msg3 = strerror (-4);
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ASSERT (msg3);
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str3 = strdup (msg3);
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ASSERT (str3);
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msg4 = strerror (1729576);
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ASSERT (msg4);
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str4 = strdup (msg4);
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ASSERT (str4);
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errno = EACCES;
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perror ("");
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errno = -5;
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perror ("");
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ASSERT (!ferror (stderr));
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ASSERT (STREQ (msg4, str4));
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free (str1);
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free (str2);
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free (str3);
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free (str4);
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}
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/* Test that perror uses the same message as strerror. */
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{
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int errs[] = { EACCES, 0, -3, };
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int i;
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for (i = 0; i < SIZEOF (errs); i++)
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{
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char buf[256];
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const char *err = strerror (errs[i]);
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ASSERT (err);
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ASSERT (strlen (err) < sizeof buf);
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rewind (stderr);
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ASSERT (ftruncate (fileno (stderr), 0) == 0);
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errno = errs[i];
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perror (NULL);
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ASSERT (!ferror (stderr));
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rewind (stderr);
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ASSERT (fgets (buf, sizeof buf, stderr) == buf);
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ASSERT (strstr (buf, err));
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}
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}
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/* Test that perror reports write failure. */
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{
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ASSERT (freopen (BASE ".tmp", "r", stderr) == stderr);
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ASSERT (setvbuf (stderr, NULL, _IONBF, BUFSIZ) == 0);
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errno = -1;
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ASSERT (!ferror (stderr));
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perror (NULL);
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#if 0
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/* Commented out until cygwin behaves:
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https://sourceware.org/ml/newlib/2011/msg00228.html */
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ASSERT (errno > 0);
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/* Commented out until glibc behaves:
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https://sourceware.org/bugzilla/show_bug.cgi?id=12792 */
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ASSERT (ferror (stderr));
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#endif
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}
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ASSERT (fclose (stderr) == 0);
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ASSERT (remove (BASE ".tmp") == 0);
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return 0;
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}
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