[wasi-libc.git] / libc-top-half / musl / src / dirent / fdopendir.c

#include <dirent.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <errno.h>
#include <stdlib.h>
#include "__dirent.h"

DIR *fdopendir(int fd)
{
	DIR *dir;
	struct stat st;

	if (fstat(fd, &st) < 0) {
		return 0;
	}
	if (fcntl(fd, F_GETFL) & O_PATH) {
		errno = EBADF;
		return 0;
	}
	if (!S_ISDIR(st.st_mode)) {
		errno = ENOTDIR;
		return 0;
	}
	if (!(dir = calloc(1, sizeof *dir))) {
		return 0;
	}

	fcntl(fd, F_SETFD, FD_CLOEXEC);
	dir->fd = fd;
	return dir;
}
Commit	Line	Data
320054e8 DG	1	#include <dirent.h>
	2	#include <fcntl.h>
	3	#include <sys/stat.h>
	4	#include <errno.h>
	5	#include <stdlib.h>
	6	#include "__dirent.h"
	7
	8	DIR *fdopendir(int fd)
	9	{
	10	DIR *dir;
	11	struct stat st;
	12
	13	if (fstat(fd, &st) < 0) {
	14	return 0;
	15	}
f41256b6 DG	16	if (fcntl(fd, F_GETFL) & O_PATH) {
	17	errno = EBADF;
	18	return 0;
	19	}
320054e8 DG	20	if (!S_ISDIR(st.st_mode)) {
	21	errno = ENOTDIR;
	22	return 0;
	23	}
	24	if (!(dir = calloc(1, sizeof *dir))) {
	25	return 0;
	26	}
	27
	28	fcntl(fd, F_SETFD, FD_CLOEXEC);
	29	dir->fd = fd;
	30	return dir;
	31	}