| 1 | #include <dirent.h> |
| 2 | #include <errno.h> |
| 3 | #include <stddef.h> |
| 4 | #include "__dirent.h" |
| 5 | #include "syscall.h" |
| 6 | |
| 7 | typedef char dirstream_buf_alignment_check[1-2*(int)( |
| 8 | offsetof(struct __dirstream, buf) % sizeof(off_t))]; |
| 9 | |
| 10 | struct dirent *readdir(DIR *dir) |
| 11 | { |
| 12 | struct dirent *de; |
| 13 | |
| 14 | if (dir->buf_pos >= dir->buf_end) { |
| 15 | int len = __syscall(SYS_getdents, dir->fd, dir->buf, sizeof dir->buf); |
| 16 | if (len <= 0) { |
| 17 | if (len < 0 && len != -ENOENT) errno = -len; |
| 18 | return 0; |
| 19 | } |
| 20 | dir->buf_end = len; |
| 21 | dir->buf_pos = 0; |
| 22 | } |
| 23 | de = (void *)(dir->buf + dir->buf_pos); |
| 24 | dir->buf_pos += de->d_reclen; |
| 25 | dir->tell = de->d_off; |
| 26 | return de; |
| 27 | } |