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86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
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/* Verify that fopen works with copy relocation on _IO_stderr_ in binaries
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linked with glibc 2.0.
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Copyright (C) 2024 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 <shlib-compat.h>
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#if TEST_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
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# define _LIBC
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# define _IO_USE_OLD_IO_FILE
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# include <stdio.h>
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# include <string.h>
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# include <unistd.h>
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# include <limits.h>
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# include <sys/stat.h>
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# include <support/check.h>
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struct _IO_jump_t;
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struct _IO_FILE_plus
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{
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FILE file;
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const struct _IO_jump_t *vtable;
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};
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extern struct _IO_FILE_plus _IO_stderr_;
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compat_symbol_reference (libc, _IO_stderr_, _IO_stderr_, GLIBC_2_0);
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compat_symbol_reference (libc, fopen, fopen, GLIBC_2_0);
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compat_symbol_reference (libc, fclose, fclose, GLIBC_2_0);
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static int
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do_test (int argc, char *argv[])
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{
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static char filename[PATH_MAX + 1];
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struct stat st;
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char *name = NULL;
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int i;
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/* Try to trigger copy relocation. */
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TEST_VERIFY_EXIT (_IO_stderr_.file._fileno == STDERR_FILENO);
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for (i = 1; i < argc; i++)
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{
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name = argv[i];
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if (stat (name, &st) == 0)
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{
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TEST_VERIFY_EXIT (strlen (name) <= PATH_MAX);
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break;
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}
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}
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TEST_VERIFY_EXIT (name != NULL);
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strcpy (filename, name);
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FILE *fp = fopen (filename, "r");
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TEST_VERIFY_EXIT (strcmp (filename, name) == 0);
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TEST_VERIFY_EXIT (fp != NULL);
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TEST_VERIFY_EXIT (fclose (fp) == 0);
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return 0;
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}
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#else
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# include <support/test-driver.h>
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static int
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do_test (int argc, char *argv[])
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{
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return EXIT_UNSUPPORTED;
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}
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#endif
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#define TEST_FUNCTION_ARGV do_test
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#include <support/test-driver.c>
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