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For use in freopen tests, add various support/ helper interfaces for use in checking file contents. Tested for x86_64.
64 lines
2.6 KiB
C
64 lines
2.6 KiB
C
/* Functionality for checking file contents.
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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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#ifndef SUPPORT_FILE_CONTENTS_H
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#define SUPPORT_FILE_CONTENTS_H
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#include <support/check.h>
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#include <stdio.h>
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__BEGIN_DECLS
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/* Check that an already-open file has exactly the given bytes,
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starting at the current location in the file. The file position
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indicator is updated to point after the bytes compared. Return 0
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if equal, 1 otherwise or on read error. */
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int support_compare_file_bytes (FILE *fp, const char *contents, size_t length);
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/* Check that an already-open file has exactly the given string as
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contents, starting at the current offset. The file position
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indicator is updated to point after the bytes compared. Return 0
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if equal, 1 otherwise or on read error. */
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int support_compare_file_string (FILE *fp, const char *contents);
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/* Check that a not-currently-open file has exactly the given bytes.
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Return 0 if equal, 1 otherwise or on read error. */
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int support_open_and_compare_file_bytes (const char *file,
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const char *contents,
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size_t length);
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/* Check that a not-currently-open file has exactly the given string
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as contents, starting at the current offset. Return 0 if equal, 1
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otherwise or on read error. */
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int support_open_and_compare_file_string (const char *file,
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const char *contents);
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/* Compare bytes read from an open file with the given string. The
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file position indicator is updated to point after the bytes
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compared. */
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#define TEST_COMPARE_FILE_STRING(FP, CONTENTS) \
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TEST_COMPARE (support_compare_file_string (FP, CONTENTS), 0)
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/* Read a file and compare bytes read from it with the given string. */
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#define TEST_OPEN_AND_COMPARE_FILE_STRING(FILE, CONTENTS) \
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TEST_COMPARE (support_open_and_compare_file_string (FILE, CONTENTS), 0)
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__END_DECLS
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#endif /* SUPPORT_FILE_CONTENTS_H */
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