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Annotation of src/usr.bin/find/ls.c, Revision 1.18

1.18    ! deraadt     1: /*     $OpenBSD: ls.c,v 1.17 2015/03/15 00:41:28 millert Exp $ */
1.2       deraadt     2:
1.1       deraadt     3: /*
                      4:  * Copyright (c) 1989, 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.
1.10      millert    15:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    16:  *    may be used to endorse or promote products derived from this software
                     17:  *    without specific prior written permission.
                     18:  *
                     19:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     20:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     21:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     22:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     23:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     24:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     25:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     26:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     27:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     28:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     29:  * SUCH DAMAGE.
                     30:  */
                     31:
                     32: #include <sys/stat.h>
                     33:
                     34: #include <err.h>
                     35: #include <errno.h>
                     36: #include <stdio.h>
                     37: #include <string.h>
                     38: #include <time.h>
                     39: #include <unistd.h>
1.16      deraadt    40: #include <limits.h>
1.1       deraadt    41: #include <utmp.h>
1.11      deraadt    42: #include <pwd.h>
                     43: #include <grp.h>
1.12      deraadt    44: #include <fts.h>
                     45: #include "find.h"
                     46: #include "extern.h"
1.1       deraadt    47:
                     48: /* Derived from the print routines in the ls(1) source code. */
                     49:
1.9       millert    50: static void printlink(char *);
                     51: static void printtime(time_t);
1.1       deraadt    52:
1.7       deraadt    53: #define NAME_WIDTH     8
1.15      guenther   54: #define        DATELEN         64
1.7       deraadt    55:
1.1       deraadt    56: void
1.11      deraadt    57: printlong(char *name, char *accpath, struct stat *sb)
1.1       deraadt    58: {
1.11      deraadt    59:        char modep[15];
1.1       deraadt    60:
1.14      deraadt    61:        (void)printf("%6llu %4lld ", (unsigned long long)sb->st_ino,
                     62:            (long long)sb->st_blocks);
1.1       deraadt    63:        (void)strmode(sb->st_mode, modep);
1.7       deraadt    64:        (void)printf("%s %3u %-*.*s %-*.*s ", modep, sb->st_nlink,
                     65:            NAME_WIDTH, UT_NAMESIZE, user_from_uid(sb->st_uid, 0),
                     66:            NAME_WIDTH, UT_NAMESIZE, group_from_gid(sb->st_gid, 0));
1.1       deraadt    67:
                     68:        if (S_ISCHR(sb->st_mode) || S_ISBLK(sb->st_mode))
1.18    ! deraadt    69:                (void)printf("%3u, %3u ", major(sb->st_rdev),
1.1       deraadt    70:                    minor(sb->st_rdev));
                     71:        else
1.8       deraadt    72:                (void)printf("%8lld ", (long long)sb->st_size);
1.1       deraadt    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
1.11      deraadt    81: printtime(time_t ftime)
1.1       deraadt    82: {
1.15      guenther   83:        char f_date[DATELEN];
                     84:        static time_t now;
                     85:        static int now_set = 0;
                     86:
                     87:        if (! now_set) {
                     88:                now = time(NULL);
                     89:                now_set = 1;
                     90:        }
1.1       deraadt    91:
1.15      guenther   92:        /*
                     93:         * convert time to string, and print
                     94:         */
                     95:        if (strftime(f_date, sizeof(f_date),
                     96:            (ftime + SIXMONTHS <= now || ftime > now) ? "%b %e  %Y" :
                     97:            "%b %e %H:%M", localtime(&ftime)) == 0)
                     98:                f_date[0] = '\0';
1.1       deraadt    99:
1.15      guenther  100:        printf("%s ", f_date);
1.1       deraadt   101: }
                    102:
                    103: static void
1.11      deraadt   104: printlink(char *name)
1.1       deraadt   105: {
                    106:        int lnklen;
1.16      deraadt   107:        char path[PATH_MAX];
1.1       deraadt   108:
1.6       millert   109:        if ((lnklen = readlink(name, path, sizeof(path) - 1)) == -1) {
1.1       deraadt   110:                warn("%s", name);
                    111:                return;
                    112:        }
                    113:        path[lnklen] = '\0';
                    114:        (void)printf(" -> %s", path);
                    115: }