1 /* -*- c-file-style: "linux" -*-
3 * Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org>
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version
7 * 2 as published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 * Trivial @c ls for comparing two directories after running an rsync.
24 * The problem with using the system's own ls is that some features
25 * have little quirks that make directories look different when for
26 * our purposes they're the same -- for example, the BSD braindamage
27 * about setting the mode on symlinks based on your current umask.
29 * All the filenames must be given on the command line -- tls does not
30 * even read directories, let alone recurse. The typical usage is
31 * "find|sort|xargs tls".
33 * The format is not exactly the same as any particular Unix ls(1).
35 * A key requirement for this program is that the output be "very
36 * reproducible." So we mask away information that can accidentally
45 /* These are to make syscall.o shut up. */
49 int preserve_perms = 0;
52 static void failed(char const *what, char const *where)
54 fprintf(stderr, PROGRAM ": %s %s: %s\n",
55 what, where, strerror(errno));
61 static void list_file(const char *fname)
64 char permbuf[PERMSTRING_SIZE];
71 ret = do_lstat(fname, &buf);
73 ret = do_stat(fname, &buf);
76 failed("stat", fname);
78 /* The size of anything but a regular file is probably not
79 * worth thinking about. */
80 if (!S_ISREG(buf.st_mode))
83 /* On some BSD platforms the mode bits of a symlink are
84 * undefined. Also it tends not to be possible to reset a
85 * symlink's mtime, so we have to ignore it too. */
86 if (S_ISLNK(buf.st_mode)) {
89 buf.st_mtime = (time_t)0;
90 buf.st_uid = buf.st_gid = 0;
91 strcpy(linkbuf, " -> ");
92 /* const-cast required for silly UNICOS headers */
93 len = readlink((char *) fname, linkbuf+4, sizeof(linkbuf) - 4);
95 failed("readlink", fname);
97 /* it's not nul-terminated */
103 permstring(permbuf, buf.st_mode);
106 mt = gmtime(&buf.st_mtime);
108 sprintf(datebuf, "%04d-%02d-%02d %02d:%02d:%02d",
116 strcpy(datebuf, " ");
119 /* TODO: Perhaps escape special characters in fname? */
121 printf("%s ", permbuf);
122 if (S_ISCHR(buf.st_mode) || S_ISBLK(buf.st_mode)) {
124 (long)major(buf.st_rdev),
125 (long)minor(buf.st_rdev));
126 } else /* NB: use double for size since it might not fit in a long. */
127 printf("%12.0f", (double)buf.st_size);
128 printf(" %6ld.%-6ld %6ld %s %s%s\n",
129 (long)buf.st_uid, (long)buf.st_gid, (long)buf.st_nlink,
130 datebuf, fname, linkbuf);
135 main(int argc, char *argv[])
138 fprintf(stderr, "usage: " PROGRAM " DIR ...\n"
139 "Trivial file listing program for portably checking rsync\n");
143 for (argv++; *argv; argv++) {