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 readdir(DIR * dir)10struct 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 } 28 29 weak_alias(readdir, readdir64); 30