60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2013, 2014.
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This file is part of the Sortix C Library.
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The Sortix C Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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The Sortix C Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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dirent/scandir.c
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Filtered and sorted directory reading.
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*******************************************************************************/
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#include <errno.h>
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#include <dirent.h>
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#include <limits.h>
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#include <stdlib.h>
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#include <string.h>
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static int wrap_filter(const struct dirent* dirent, void* function)
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{
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return ((int (*)(const struct dirent*)) function)(dirent);
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}
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static int wrap_compare(const struct dirent** dirent_a,
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const struct dirent** dirent_b, void* function)
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{
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return ((int (*)(const struct dirent**, const struct dirent**)) function)(dirent_a, dirent_b);
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}
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int scandir(const char* path, struct dirent*** namelist_ptr,
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int (*filter)(const struct dirent*),
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int (*compare)(const struct dirent**, const struct dirent**))
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{
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DIR* dir = opendir(path);
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if ( !dir )
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return -1;
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int (*used_filter)(const struct dirent*,
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void*) = filter ? wrap_filter : NULL;
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int (*used_compare)(const struct dirent**,
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const struct dirent**,
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void*) = compare ? wrap_compare : NULL;
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int result = dscandir_r(dir, namelist_ptr,
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used_filter, (void*) filter,
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used_compare, (void*) compare);
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closedir(dir);
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return result;
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}
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