| readdir.c (1573) | readdir.c (23658) |
|---|---|
| 1/* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 18 unchanged lines hidden (view full) --- 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#if defined(LIBC_SCCS) && !defined(lint) | 1/* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 18 unchanged lines hidden (view full) --- 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#if defined(LIBC_SCCS) && !defined(lint) |
| 35static char sccsid[] = "@(#)readdir.c 8.1 (Berkeley) 6/4/93"; | 35static char sccsid[] = "@(#)readdir.c 8.3 (Berkeley) 9/29/94"; |
| 36#endif /* LIBC_SCCS and not lint */ 37 38#include <sys/param.h> 39#include <dirent.h> 40 41/* 42 * get next entry in a directory. 43 */ 44struct dirent * 45readdir(dirp) 46 register DIR *dirp; 47{ 48 register struct dirent *dp; 49 50 for (;;) { | 36#endif /* LIBC_SCCS and not lint */ 37 38#include <sys/param.h> 39#include <dirent.h> 40 41/* 42 * get next entry in a directory. 43 */ 44struct dirent * 45readdir(dirp) 46 register DIR *dirp; 47{ 48 register struct dirent *dp; 49 50 for (;;) { |
| 51 if (dirp->dd_loc == 0) { | 51 if (dirp->dd_loc >= dirp->dd_size) { 52 if (dirp->dd_flags & __DTF_READALL) 53 return (NULL); 54 dirp->dd_loc = 0; 55 } 56 if (dirp->dd_loc == 0 && !(dirp->dd_flags & __DTF_READALL)) { |
| 52 dirp->dd_size = getdirentries(dirp->dd_fd, 53 dirp->dd_buf, dirp->dd_len, &dirp->dd_seek); 54 if (dirp->dd_size <= 0) | 57 dirp->dd_size = getdirentries(dirp->dd_fd, 58 dirp->dd_buf, dirp->dd_len, &dirp->dd_seek); 59 if (dirp->dd_size <= 0) |
| 55 return NULL; | 60 return (NULL); |
| 56 } | 61 } |
| 57 if (dirp->dd_loc >= dirp->dd_size) { 58 dirp->dd_loc = 0; 59 continue; 60 } | |
| 61 dp = (struct dirent *)(dirp->dd_buf + dirp->dd_loc); 62 if ((int)dp & 03) /* bogus pointer check */ | 62 dp = (struct dirent *)(dirp->dd_buf + dirp->dd_loc); 63 if ((int)dp & 03) /* bogus pointer check */ |
| 63 return NULL; | 64 return (NULL); |
| 64 if (dp->d_reclen <= 0 || 65 dp->d_reclen > dirp->dd_len + 1 - dirp->dd_loc) | 65 if (dp->d_reclen <= 0 || 66 dp->d_reclen > dirp->dd_len + 1 - dirp->dd_loc) |
| 66 return NULL; | 67 return (NULL); |
| 67 dirp->dd_loc += dp->d_reclen; 68 if (dp->d_ino == 0) 69 continue; | 68 dirp->dd_loc += dp->d_reclen; 69 if (dp->d_ino == 0) 70 continue; |
| 71 if (dp->d_type == DT_WHT && (dirp->dd_flags & DTF_HIDEW)) 72 continue; |
|
| 70 return (dp); 71 } 72} | 73 return (dp); 74 } 75} |