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f22ee865 MP |
1 | /* -*- c-file-style: "linux" -*- |
2 | * | |
ea1438da | 3 | * Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.org> |
f26ac1e8 | 4 | * |
f22ee865 MP |
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. | |
f26ac1e8 | 8 | * |
f22ee865 MP |
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. | |
f26ac1e8 | 13 | * |
f22ee865 MP |
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. | |
17 | */ | |
18 | ||
19 | /** | |
ac13ad10 | 20 | * @file tls.c |
f22ee865 | 21 | * |
ac13ad10 | 22 | * Trivial @c ls for comparing two directories after running an rsync. |
f22ee865 MP |
23 | * |
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. | |
28 | * | |
4ed886ae MP |
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". | |
f22ee865 | 32 | * |
4ed886ae | 33 | * The format is not exactly the same as any particular Unix ls(1). |
f22ee865 | 34 | * |
4ed886ae MP |
35 | * A key requirement for this program is that the output be "very |
36 | * reproducible." So we mask away information that can accidentally | |
37 | * change. | |
38 | **/ | |
f22ee865 MP |
39 | |
40 | ||
f22ee865 MP |
41 | #include "rsync.h" |
42 | ||
43 | #define PROGRAM "tls" | |
44 | ||
45 | /* These are to make syscall.o shut up. */ | |
46 | int dry_run = 0; | |
47 | int read_only = 1; | |
48 | int list_only = 0; | |
522c05cf | 49 | int preserve_perms = 0; |
f22ee865 MP |
50 | |
51 | ||
630e3c40 | 52 | static void failed(char const *what, char const *where) |
f22ee865 | 53 | { |
630e3c40 WD |
54 | fprintf(stderr, PROGRAM ": %s %s: %s\n", |
55 | what, where, strerror(errno)); | |
56 | exit(1); | |
f22ee865 MP |
57 | } |
58 | ||
59 | ||
60 | ||
630e3c40 | 61 | static void list_file(const char *fname) |
f22ee865 | 62 | { |
d0f821ad | 63 | STRUCT_STAT buf; |
4ed886ae MP |
64 | char permbuf[PERMSTRING_SIZE]; |
65 | struct tm *mt; | |
dd0700b0 | 66 | char datebuf[50]; |
1336e414 | 67 | char linkbuf[4096]; |
4ed886ae MP |
68 | |
69 | if (do_lstat(fname, &buf) == -1) | |
630e3c40 | 70 | failed("stat", fname); |
4ed886ae | 71 | |
2d4c8e59 MP |
72 | /* The size of anything but a regular file is probably not |
73 | * worth thinking about. */ | |
74 | if (!S_ISREG(buf.st_mode)) | |
4ed886ae | 75 | buf.st_size = 0; |
f22ee865 | 76 | |
dd0700b0 MP |
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)) { | |
0771727d | 81 | int len; |
dd0700b0 MP |
82 | buf.st_mode &= ~0777; |
83 | buf.st_mtime = (time_t)0; | |
84 | buf.st_uid = buf.st_gid = 0; | |
1336e414 | 85 | strcpy(linkbuf, " -> "); |
acf1af0c | 86 | /* const-cast required for silly UNICOS headers */ |
0771727d | 87 | len = readlink((char *) fname, linkbuf+4, sizeof(linkbuf) - 4); |
f26ac1e8 | 88 | if (len == -1) |
0771727d MP |
89 | failed("readlink", fname); |
90 | else | |
91 | /* it's not nul-terminated */ | |
92 | linkbuf[4+len] = 0; | |
1336e414 MP |
93 | } else { |
94 | linkbuf[0] = 0; | |
dd0700b0 | 95 | } |
f22ee865 | 96 | |
dd0700b0 | 97 | permstring(permbuf, buf.st_mode); |
4ed886ae | 98 | |
dd0700b0 MP |
99 | if (buf.st_mtime) { |
100 | mt = gmtime(&buf.st_mtime); | |
f26ac1e8 | 101 | |
dd0700b0 MP |
102 | sprintf(datebuf, "%04d-%02d-%02d %02d:%02d:%02d", |
103 | mt->tm_year + 1900, | |
104 | mt->tm_mon + 1, | |
105 | mt->tm_mday, | |
106 | mt->tm_hour, | |
107 | mt->tm_min, | |
108 | mt->tm_sec); | |
109 | } else { | |
110 | strcpy(datebuf, " "); | |
111 | } | |
f26ac1e8 | 112 | |
4ed886ae | 113 | /* TODO: Perhaps escape special characters in fname? */ |
f26ac1e8 WD |
114 | |
115 | printf("%s ", permbuf); | |
48d3ff94 | 116 | if (S_ISCHR(buf.st_mode) || S_ISBLK(buf.st_mode)) { |
0e1d98ae WD |
117 | printf("%5ld,%6ld", |
118 | (long)major(buf.st_rdev), | |
119 | (long)minor(buf.st_rdev)); | |
120 | } else /* NB: use double for size since it might not fit in a long. */ | |
f26ac1e8 WD |
121 | printf("%12.0f", (double)buf.st_size); |
122 | printf(" %6ld.%-6ld %6ld %s %s%s\n", | |
123 | (long)buf.st_uid, (long)buf.st_gid, (long)buf.st_nlink, | |
1336e414 | 124 | datebuf, fname, linkbuf); |
f22ee865 MP |
125 | } |
126 | ||
127 | ||
f69204ad WD |
128 | int |
129 | main(int argc, char *argv[]) | |
f22ee865 MP |
130 | { |
131 | if (argc < 2) { | |
630e3c40 WD |
132 | fprintf(stderr, "usage: " PROGRAM " DIR ...\n" |
133 | "Trivial file listing program for portably checking rsync\n"); | |
f22ee865 MP |
134 | return 1; |
135 | } | |
136 | ||
137 | for (argv++; *argv; argv++) { | |
630e3c40 | 138 | list_file(*argv); |
f22ee865 MP |
139 | } |
140 | ||
141 | return 0; | |
142 | } |