1 /* 2 * Copyright (c) 1989, 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 sccsid[] = "@(#)ls.c 8.1 (Berkeley) 6/6/93"; 36 #endif /* not lint */ 37 38 #include <sys/param.h> 39 #include <sys/stat.h> 40 41 #include <err.h> 42 #include <errno.h> 43 #include <stdio.h> 44 #include <string.h> 45 #include <time.h> 46 #include <unistd.h> 47 #include <utmp.h> 48 49 /* Derived from the print routines in the ls(1) source code. */ 50 51 static void printlink __P((char *)); 52 static void printtime __P((time_t)); 53 54 void 55 printlong(name, accpath, sb) 56 char *name; /* filename to print */ 57 char *accpath; /* current valid path to filename */ 58 struct stat *sb; /* stat buffer */ 59 { 60 char modep[15], *user_from_uid(), *group_from_gid(); 61 62 (void)printf("%6lu %4qd ", (u_long)sb->st_ino, sb->st_blocks); 63 (void)strmode(sb->st_mode, modep); 64 (void)printf("%s %3u %-*s %-*s ", modep, sb->st_nlink, UT_NAMESIZE, 65 user_from_uid(sb->st_uid, 0), UT_NAMESIZE, 66 group_from_gid(sb->st_gid, 0)); 67 68 if (S_ISCHR(sb->st_mode) || S_ISBLK(sb->st_mode)) 69 (void)printf("%3d, %3d ", major(sb->st_rdev), 70 minor(sb->st_rdev)); 71 else 72 (void)printf("%8qd ", sb->st_size); 73 printtime(sb->st_mtime); 74 (void)printf("%s", name); 75 if (S_ISLNK(sb->st_mode)) 76 printlink(accpath); 77 (void)putchar('\n'); 78 } 79 80 static void 81 printtime(ftime) 82 time_t ftime; 83 { 84 int i; 85 char longstring[80]; 86 87 strftime(longstring, sizeof(longstring), "%c", localtime(&ftime)); 88 for (i = 4; i < 11; ++i) 89 (void)putchar(longstring[i]); 90 91 #define SIXMONTHS ((365 / 2) * 86400) 92 if (ftime + SIXMONTHS > time((time_t *)NULL)) 93 for (i = 11; i < 16; ++i) 94 (void)putchar(longstring[i]); 95 else { 96 (void)putchar(' '); 97 for (i = 20; i < 24; ++i) 98 (void)putchar(longstring[i]); 99 } 100 (void)putchar(' '); 101 } 102 103 static void 104 printlink(name) 105 char *name; 106 { 107 int lnklen; 108 char path[MAXPATHLEN + 1]; 109 110 if ((lnklen = readlink(name, path, MAXPATHLEN - 1)) == -1) { 111 warn("%s", name); 112 return; 113 } 114 path[lnklen] = '\0'; 115 (void)printf(" -> %s", path); 116 } 117