1 /* 2 * Copyright (c) 1982, 1986, 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)ls.c 8.1 (Berkeley) 06/11/93 8 */ 9 10 #include <sys/param.h> 11 #include <sys/ttychars.h> 12 13 #include <ufs/ufs/dir.h> 14 #include <stand.att/saio.h> 15 16 main() 17 { 18 struct dinode *ip; 19 int fd; 20 21 for (;;) { 22 if ((fd = getfile("ls", 0)) == -1) 23 exit(); 24 ip = &iob[fd - 3].i_ino; 25 if ((ip->di_mode & IFMT) != IFDIR) { 26 printf("ls: not a directory\n"); 27 continue; 28 } 29 if (ip->di_size == 0) { 30 printf("ls: zero length directory\n"); 31 continue; 32 } 33 ls(fd); 34 } 35 } 36 37 #define CTRL(x) (x&037) 38 39 getfile(prompt, mode) 40 char *prompt; 41 int mode; 42 { 43 int fd; 44 char buf[100]; 45 46 do { 47 printf("%s: ", prompt); 48 gets(buf); 49 if (buf[0] == CTRL('d') && buf[1] == 0) 50 return (-1); 51 } while ((fd = open(buf, mode)) <= 0); 52 return(fd); 53 } 54 55 typedef struct direct DP; 56 static 57 ls(fd) 58 register int fd; 59 { 60 register int size; 61 register char *dp; 62 char dirbuf[DIRBLKSIZ]; 63 64 printf("\ninode\tname\n"); 65 while ((size = read(fd, dirbuf, DIRBLKSIZ)) == DIRBLKSIZ) 66 for(dp = dirbuf; (dp < (dirbuf + size)) && 67 (dp + ((DP *)dp)->d_reclen) < (dirbuf + size); 68 dp += ((DP *)dp)->d_reclen) { 69 if (((DP *)dp)->d_ino == 0) 70 continue; 71 if (((DP *)dp)->d_namlen > MAXNAMLEN+1) { 72 printf("Corrupt file name length! Run fsck soon!\n"); 73 return; 74 } 75 printf("%d\t%s\n", ((DP *)dp)->d_ino, 76 ((DP *)dp)->d_name); 77 } 78 } 79