1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2010 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 /* 24 * Glenn Fowler 25 * AT&T Bell Laboratories 26 * 27 * ls formatter 28 */ 29 30 #include <ast.h> 31 #include <ls.h> 32 #include <tm.h> 33 34 #ifndef LS_W_MAX 35 #define LS_W_MAX 128 36 #endif 37 38 /* 39 * ls formatter 40 * 41 * buf results placed here 42 * name file name 43 * st file stat buffer 44 * info optional info 45 * link link text if != 0 46 * flags LS_* flags 47 * 48 * return end of formatted buf 49 */ 50 51 char* 52 fmtls(char* buf, const char* name, register struct stat* st, const char* info, const char* link, register int flags) 53 { 54 register char* s; 55 time_t tm; 56 Sfoff_t n; 57 58 s = buf; 59 if (flags & LS_INUMBER) 60 s += sfsprintf(s, LS_W_MAX, "%*I*u ", LS_W_INUMBER - 1, sizeof(st->st_ino), st->st_ino); 61 if (flags & LS_BLOCKS) 62 { 63 n = iblocks(st); 64 s += sfsprintf(s, LS_W_MAX, "%*I*u ", LS_W_BLOCKS - 1, sizeof(n), n); 65 } 66 if (flags & LS_LONG) 67 { 68 s += sfsprintf(s, LS_W_MAX, "%s%3u", fmtmode(st->st_mode, flags & LS_EXTERNAL), (unsigned int)st->st_nlink); 69 if (!(flags & LS_NOUSER)) 70 { 71 if (flags & LS_NUMBER) 72 s += sfsprintf(s, LS_W_MAX, " %-*I*d", LS_W_NAME - 1, sizeof(st->st_uid), st->st_uid); 73 else 74 s += sfsprintf(s, LS_W_MAX, " %-*s", LS_W_NAME - 1, fmtuid(st->st_uid)); 75 } 76 if (!(flags & LS_NOGROUP)) 77 { 78 if (flags & LS_NUMBER) 79 s += sfsprintf(s, LS_W_MAX, " %-*I*d", LS_W_NAME - 1, sizeof(st->st_gid), st->st_gid); 80 else 81 s += sfsprintf(s, LS_W_MAX, " %-*s", LS_W_NAME - 1, fmtgid(st->st_gid)); 82 } 83 if (S_ISBLK(st->st_mode) || S_ISCHR(st->st_mode)) 84 s += sfsprintf(s, LS_W_MAX, "%8s ", fmtdev(st)); 85 else 86 s += sfsprintf(s, LS_W_MAX, "%8I*u ", sizeof(st->st_size), st->st_size); 87 tm = (flags & LS_ATIME) ? st->st_atime : (flags & LS_CTIME) ? st->st_ctime : st->st_mtime; 88 s = tmfmt(s, LS_W_LONG / 2, "%?%l", &tm); 89 *s++ = ' '; 90 } 91 if (info) 92 { 93 while (*s = *info++) 94 s++; 95 *s++ = ' '; 96 } 97 while (*s = *name++) 98 s++; 99 if (flags & LS_MARK) 100 { 101 if (S_ISDIR(st->st_mode)) 102 *s++ = '/'; 103 #ifdef S_ISLNK 104 else if (S_ISLNK(st->st_mode)) 105 *s++ = '@'; 106 #endif 107 else if (st->st_mode & (S_IXUSR|S_IXGRP|S_IXOTH)) 108 *s++ = '*'; 109 } 110 if (link) 111 { 112 s += sfsprintf(s, LS_W_MAX, " %s %s", 113 #ifdef S_ISLNK 114 S_ISLNK(st->st_mode) ? "->" : 115 #endif 116 "==", link); 117 } 118 *s = 0; 119 return s; 120 } 121