mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
77 lines
3.6 KiB
C
77 lines
3.6 KiB
C
/*-*- mode:c;indent-tabs-mode:t;c-basic-offset:8;tab-width:8;coding:utf-8 -*-│
|
|
│ vi: set noet ft=c ts=8 sw=8 fenc=utf-8 :vi │
|
|
╚──────────────────────────────────────────────────────────────────────────────╝
|
|
│ │
|
|
│ Musl Libc │
|
|
│ Copyright © 2005-2014 Rich Felker, et al. │
|
|
│ │
|
|
│ 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 "libc/calls/struct/dirent.h"
|
|
#include "libc/errno.h"
|
|
#include "libc/limits.h"
|
|
#include "libc/mem/alg.h"
|
|
#include "libc/mem/mem.h"
|
|
#include "libc/str/str.h"
|
|
__static_yoink("musl_libc_notice");
|
|
|
|
// clang-format off
|
|
|
|
int scandir(const char *path, struct dirent ***res,
|
|
int (*sel)(const struct dirent *),
|
|
int (*cmp)(const struct dirent **, const struct dirent **))
|
|
{
|
|
DIR *d = opendir(path);
|
|
struct dirent *de, **names=0, **tmp;
|
|
size_t cnt=0, len=0;
|
|
int old_errno = errno;
|
|
|
|
if (!d) return -1;
|
|
|
|
while ((errno=0), (de = readdir(d))) {
|
|
if (sel && !sel(de)) continue;
|
|
if (cnt >= len) {
|
|
len = 2*len+1;
|
|
if (len > SIZE_MAX/sizeof *names) break;
|
|
tmp = realloc(names, len * sizeof *names);
|
|
if (!tmp) break;
|
|
names = tmp;
|
|
}
|
|
names[cnt] = malloc(de->d_reclen);
|
|
if (!names[cnt]) break;
|
|
memcpy(names[cnt++], de, de->d_reclen);
|
|
}
|
|
|
|
closedir(d);
|
|
|
|
if (errno) {
|
|
if (names) while (cnt-->0) free(names[cnt]);
|
|
free(names);
|
|
return -1;
|
|
}
|
|
errno = old_errno;
|
|
|
|
if (cmp && names) {
|
|
qsort(names, cnt, sizeof *names, (int (*)(const void *, const void *))cmp);
|
|
}
|
|
*res = names;
|
|
return cnt;
|
|
}
|