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. */
51 static void failed (char const *what,
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];
69 if (do_lstat(fname, &buf) == -1)
70 failed ("stat", fname);
72 /* The size of anything but a regular file is probably not
73 * worth thinking about. */
74 if (!S_ISREG(buf.st_mode))
77 /* On some BSD platforms the mode bits of a symlink are
78 * undefined. Also it tends not to be possible to reset a
79 * symlink's mtime, so we have to ignore it too. */
80 if (S_ISLNK(buf.st_mode)) {
83 buf.st_mtime = (time_t)0;
84 buf.st_uid = buf.st_gid = 0;
85 strcpy(linkbuf, " -> ");
86 /* const-cast required for silly UNICOS headers */
87 len = readlink((char *) fname, linkbuf+4, sizeof(linkbuf) - 4);
89 failed("readlink", fname);
91 /* it's not nul-terminated */
97 permstring(permbuf, buf.st_mode);
100 mt = gmtime(&buf.st_mtime);
102 sprintf(datebuf, "%04d-%02d-%02d %02d:%02d:%02d",
110 strcpy(datebuf, " ");
113 /* TODO: Perhaps escape special characters in fname? */
116 /* NB: need to pass size as a double because it might be be
117 * too large for a long. */
118 printf("%s %12.0f %6ld.%-6ld %6d %s %s%s\n",
119 permbuf, (double) buf.st_size,
120 (long) buf.st_uid, (long) buf.st_gid,
122 datebuf, fname, linkbuf);
126 int main (int argc, char *argv[])
129 fprintf (stderr, "usage: " PROGRAM " DIR ...\n"
130 "Trivial file listing program for portably checking rsync\n");
134 for (argv++; *argv; argv++) {