forked from osmocom/wireshark
116d381ea4
Include string.h as suggested by clang:
../wiretap/mp4.c:33:4: error: implicitly declaring library function 'memcmp' with type 'int (const void *, const void *, unsigned long)' [-Werror,-Wimplicit-function-declaration]
memcmp(magic_buf + 4, mp4_magic, sizeof (mp4_magic)))
^
../wiretap/mp4.c:33:4: note: include the header <string.h> or explicitly provide a declaration for 'memcmp'
Change-Id: I2369ad140f95ca10f22c176b9e2646950b1a8f65
Reviewed-on: https://code.wireshark.org/review/35814
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Gerald Combs <gerald@wireshark.org>
63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
/* mp4.c
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*
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* MP4 (ISO/IEC 14496-12) file format decoder for the Wiretap library.
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*
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* Wiretap Library
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "mp4.h"
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#include <string.h>
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#include "file_wrappers.h"
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#include "wtap-int.h"
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static const guint8 mp4_magic[] = { 'f', 't', 'y', 'p' };
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wtap_open_return_val
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mp4_open(wtap *wth, int *err, gchar **err_info)
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{
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char magic_buf[8];
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int bytes_read;
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bytes_read = file_read(magic_buf, sizeof (magic_buf), wth->fh);
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if (bytes_read < 0) {
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*err = file_error(wth->fh, err_info);
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return WTAP_OPEN_ERROR;
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}
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if (bytes_read == 0)
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return WTAP_OPEN_NOT_MINE;
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if (bytes_read == sizeof (magic_buf) &&
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memcmp(magic_buf + 4, mp4_magic, sizeof (mp4_magic)))
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return WTAP_OPEN_NOT_MINE;
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if (file_seek(wth->fh, 0, SEEK_SET, err) == -1)
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return WTAP_OPEN_ERROR;
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wth->file_type_subtype = WTAP_FILE_TYPE_SUBTYPE_MP4;
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wth->file_encap = WTAP_ENCAP_MP4;
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wth->file_tsprec = WTAP_TSPREC_SEC;
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wth->subtype_read = wtap_full_file_read;
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wth->subtype_seek_read = wtap_full_file_seek_read;
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wth->snapshot_length = 0;
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return WTAP_OPEN_MINE;
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}
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/*
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* Editor modelines - https://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 8
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=8 tabstop=8 noexpandtab:
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* :indentSize=8:tabSize=8:noTabs=false:
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*/
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