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- /* -*- Mode: C; c-file-style: "gnu" -*- */
- /*
- Copyright (c) 2000 Petter Reinholdtsen
- Permission is hereby granted, free of charge, to any person
- obtaining a copy of this software and associated documentation
- files (the "Software"), to deal in the Software without
- restriction, including without limitation the rights to use, copy,
- modify, merge, publish, distribute, sublicense, and/or sell copies
- of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- SOFTWARE.
- */
- #include <dirent.h>
- #include <stdio.h>
- #include <string.h>
- #include <stdlib.h>
- #include <sys/types.h>
- #include "dirstream.h"
- int scandir(const char *dir, struct dirent ***namelist,
- int (*selector) (const struct dirent *),
- int (*compar) (const __ptr_t, const __ptr_t))
- {
- DIR *d = opendir(dir);
- struct dirent *current;
- struct dirent **names;
- int count = 0;
- int pos = 0;
- int result = -1;
- if (NULL == d)
- return -1;
- while (NULL != readdir(d))
- count++;
- if (!(names = malloc(sizeof (struct dirent *) * count))) {
- closedir(d);
- return -1;
- }
- rewinddir(d);
- while (NULL != (current = readdir(d))) {
- if (NULL == selector || selector(current)) {
- struct dirent *copyentry = malloc(current->d_reclen);
- memcpy(copyentry, current, current->d_reclen);
- names[pos] = copyentry;
- pos++;
- }
- }
- result = closedir(d);
- if (pos != count) {
- struct dirent **tmp;
- if (!(tmp = realloc(names, sizeof (struct dirent *) * pos))) {
- free(names);
- return -1;
- }
- names = tmp;
- }
- if (compar != NULL) {
- qsort(names, pos, sizeof (struct dirent *), compar);
- }
- *namelist = names;
- return pos;
- }
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