c30396f5f2
The declaration for alphasort() in <dirent.h> used the deprecated: int alphasort(const void*, const void*); while both Posix and GLibc use instead: int alphasort(const struct dirent** a, const struct dirent** b); See: http://pubs.opengroup.org/onlinepubs/9699919799/functions/alphasort.html This patch does the following: - Update the declaration to match Posix/GLibc - Get rid of the upstream BSD code which isn't compatible with the new signature. - Implement a new trivial alphasort() with the right signature, and ensure that it uses strcoll() instead of strcmp(). - Remove Bionic-specific #ifdef .. #else .. #endif block in dirent_test.cpp which uses alphasort(). Even through strcoll() currently uses strcmp(), this does the right thing in the case where we decide to update strcoll() to properly implement locale-specific ordered comparison. Change-Id: I4fd45604d8a940aaf2eb0ecd7d73e2f11c9bca96
76 lines
2.7 KiB
C
76 lines
2.7 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _DIRENT_H_
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#define _DIRENT_H_
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#include <stdint.h>
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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#ifndef DT_UNKNOWN
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#define DT_UNKNOWN 0
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#define DT_FIFO 1
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#define DT_CHR 2
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#define DT_DIR 4
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#define DT_BLK 6
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#define DT_REG 8
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#define DT_LNK 10
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#define DT_SOCK 12
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#define DT_WHT 14
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#endif
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struct dirent {
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uint64_t d_ino;
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int64_t d_off;
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unsigned short d_reclen;
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unsigned char d_type;
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char d_name[256];
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};
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typedef struct DIR DIR;
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extern DIR* opendir(const char* dirpath);
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extern DIR* fdopendir(int fd);
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extern struct dirent* readdir(DIR* dirp);
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extern int readdir_r(DIR* dirp, struct dirent* entry, struct dirent** result);
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extern int closedir(DIR* dirp);
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extern void rewinddir(DIR* dirp);
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extern int dirfd(DIR* dirp);
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extern int alphasort(const struct dirent** a, const struct dirent** b);
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extern int scandir(const char* dir, struct dirent*** namelist,
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int(*filter)(const struct dirent*),
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int(*compar)(const struct dirent**,
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const struct dirent**));
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extern int getdents(unsigned int, struct dirent*, unsigned int);
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__END_DECLS
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#endif /* _DIRENT_H_ */
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