1 /* $NetBSD: ls.c,v 1.11 2001/12/22 00:35:45 wiz Exp $ */ 2 3 /*- 4 * Copyright (c) 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)ls.c 8.1 (Berkeley) 6/11/93"; 45 #else 46 __RCSID("$NetBSD: ls.c,v 1.11 2001/12/22 00:35:45 wiz Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/param.h> 51 #include <sys/stat.h> 52 #include <sys/dirent.h> 53 #include <ufs/ufs/dir.h> 54 #include <ufs/ufs/dinode.h> 55 #include <sys/ttychars.h> 56 #include <lib/libsa/stand.h> 57 58 int main __P((void)); 59 static void ls __P((int)); 60 61 int 62 main() 63 { 64 struct stat st; 65 int fd; 66 67 for (;;) { 68 if ((fd = getfile("ls", 0)) == -1) 69 exit(); 70 71 if (fstat(fd, &st) == -1) { 72 printf("ls: cannot stat\n"); 73 continue; 74 } 75 76 if (!S_ISDIR(st.st_mode)) { 77 printf("ls: not a directory\n"); 78 continue; 79 } 80 if (st.st_size == 0) { 81 printf("ls: zero length directory\n"); 82 continue; 83 } 84 ls(fd); 85 } 86 } 87 88 typedef struct dirent DP; 89 static void 90 ls(fd) 91 register int fd; 92 { 93 register int size; 94 register char *dp; 95 char dirbuf[DIRBLKSIZ]; 96 97 printf("\ninode\tname\n"); 98 while ((size = read(fd, dirbuf, DIRBLKSIZ)) == DIRBLKSIZ) 99 for (dp = dirbuf; (dp < (dirbuf + size)) && 100 (dp + ((DP *)dp)->d_reclen) < (dirbuf + size); 101 dp += ((DP *)dp)->d_reclen) { 102 if (((DP *)dp)->d_fileno == 0) 103 continue; 104 if (((DP *)dp)->d_namlen > MAXNAMLEN+1) { 105 printf("Corrupt file name length! Run fsck soon!\n"); 106 return; 107 } 108 printf("%d\t%s\n", ((DP *)dp)->d_fileno, 109 ((DP *)dp)->d_name); 110 } 111 } 112