diff options
Diffstat (limited to 'libc-top-half/musl/src/dirent/scandir.c')
-rw-r--r-- | libc-top-half/musl/src/dirent/scandir.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/dirent/scandir.c b/libc-top-half/musl/src/dirent/scandir.c new file mode 100644 index 0000000..7ee195d --- /dev/null +++ b/libc-top-half/musl/src/dirent/scandir.c @@ -0,0 +1,47 @@ +#include <dirent.h> +#include <string.h> +#include <stdlib.h> +#include <stdint.h> +#include <errno.h> +#include <stddef.h> + +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) qsort(names, cnt, sizeof *names, (int (*)(const void *, const void *))cmp); + *res = names; + return cnt; +} + +weak_alias(scandir, scandir64); |