1 /*- 2 * Copyright (c) 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 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 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 #ifndef lint 35 static char copyright[] = 36 "@(#) Copyright (c) 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 /*static char sccsid[] = "from: @(#)ls.c 8.1 (Berkeley) 6/11/93";*/ 42 static char rcsid[] = "$NetBSD: ls.c,v 1.5 1994/06/29 06:43:30 cgd Exp $"; 43 #endif /* not lint */ 44 45 #include <sys/param.h> 46 #include <ufs/dir.h> 47 #include <sys/ttychars.h> 48 #include "stand.h" 49 50 main() 51 { 52 struct dinode *ip; 53 int fd; 54 55 for (;;) { 56 if ((fd = getfile("ls", 0)) == -1) 57 exit(); 58 ip = &iob[fd - 3].i_ino; 59 if ((ip->di_mode & IFMT) != IFDIR) { 60 printf("ls: not a directory\n"); 61 continue; 62 } 63 if (ip->di_size == 0) { 64 printf("ls: zero length directory\n"); 65 continue; 66 } 67 ls(fd); 68 } 69 } 70 71 #define CTRL(x) (x&037) 72 73 getfile(prompt, mode) 74 char *prompt; 75 int mode; 76 { 77 int fd; 78 char buf[100]; 79 80 do { 81 printf("%s: ", prompt); 82 gets(buf); 83 if (buf[0] == CTRL('d') && buf[1] == 0) 84 return (-1); 85 } while ((fd = open(buf, mode)) < 0); 86 return(fd); 87 } 88 89 typedef struct direct DP; 90 static 91 ls(fd) 92 register int fd; 93 { 94 register int size; 95 register char *dp; 96 char dirbuf[DIRBLKSIZ]; 97 98 printf("\ninode\tname\n"); 99 while ((size = read(fd, dirbuf, DIRBLKSIZ)) == DIRBLKSIZ) 100 for (dp = dirbuf; (dp < (dirbuf + size)) && 101 (dp + ((DP *)dp)->d_reclen) < (dirbuf + size); 102 dp += ((DP *)dp)->d_reclen) { 103 if (((DP *)dp)->d_ino == 0) 104 continue; 105 if (((DP *)dp)->d_namlen > MAXNAMLEN+1) { 106 printf("Corrupt file name length! Run fsck soon!\n"); 107 return; 108 } 109 printf("%d\t%s\n", ((DP *)dp)->d_ino, 110 ((DP *)dp)->d_name); 111 } 112 } 113