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git.ipfire.org Git - thirdparty/rsync.git/blob - tls.c
2 * Trivial ls for comparing two directories after running an rsync.
4 * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
5 * Copyright (C) 2003-2007 Wayne Davison
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
21 /* The problem with using the system's own ls is that some features
22 * have little quirks that make directories look different when for
23 * our purposes they're the same -- for example, the BSD braindamage
24 * about setting the mode on symlinks based on your current umask.
26 * All the filenames must be given on the command line -- tls does not
27 * even read directories, let alone recurse. The typical usage is
28 * "find|sort|xargs tls".
30 * The format is not exactly the same as any particular Unix ls(1).
32 * A key requirement for this program is that the output be "very
33 * reproducible." So we mask away information that can accidentally
38 #include "lib/sysxattrs.h"
42 /* These are to make syscall.o shut up. */
47 int preserve_perms
= 0;
49 #ifdef HAVE_LINUX_XATTRS
50 #define XSTAT_ATTR "user.rsync.%stat"
52 #define XSTAT_ATTR "rsync.%stat"
55 static int stat_xattr(const char *fname
, STRUCT_STAT
*fst
)
57 int mode
, rdev_major
, rdev_minor
, uid
, gid
, len
;
60 if (am_root
>= 0 || IS_DEVICE(fst
->st_mode
) || IS_SPECIAL(fst
->st_mode
))
63 len
= sys_lgetxattr(fname
, XSTAT_ATTR
, buf
, sizeof buf
- 1);
64 if (len
>= (int)sizeof buf
) {
69 if (errno
== ENOTSUP
|| errno
== ENOATTR
)
71 if (errno
== EPERM
&& S_ISLNK(fst
->st_mode
)) {
76 fprintf(stderr
, "failed to read xattr %s for %s: %s\n",
77 XSTAT_ATTR
, fname
, strerror(errno
));
82 if (sscanf(buf
, "%o %d,%d %d:%d",
83 &mode
, &rdev_major
, &rdev_minor
, &uid
, &gid
) != 5) {
84 fprintf(stderr
, "Corrupt %s xattr attached to %s: \"%s\"\n",
85 XSTAT_ATTR
, fname
, buf
);
89 fst
->st_mode
= from_wire_mode(mode
);
90 fst
->st_rdev
= MAKEDEV(rdev_major
, rdev_minor
);
97 static void failed(char const *what
, char const *where
)
99 fprintf(stderr
, PROGRAM
": %s %s: %s\n",
100 what
, where
, strerror(errno
));
104 static void list_file(const char *fname
)
107 char permbuf
[PERMSTRING_SIZE
];
112 if (do_lstat(fname
, &buf
) < 0)
113 failed("stat", fname
);
115 stat_xattr(fname
, &buf
);
117 /* The size of anything but a regular file is probably not
118 * worth thinking about. */
119 if (!S_ISREG(buf
.st_mode
))
122 /* On some BSD platforms the mode bits of a symlink are
123 * undefined. Also it tends not to be possible to reset a
124 * symlink's mtime, so we have to ignore it too. */
125 if (S_ISLNK(buf
.st_mode
)) {
127 buf
.st_mode
&= ~0777;
128 buf
.st_mtime
= (time_t)0;
129 buf
.st_uid
= buf
.st_gid
= 0;
130 strlcpy(linkbuf
, " -> ", sizeof linkbuf
);
131 /* const-cast required for silly UNICOS headers */
132 len
= readlink((char *) fname
, linkbuf
+4, sizeof(linkbuf
) - 4);
134 failed("readlink", fname
);
136 /* it's not nul-terminated */
142 permstring(permbuf
, buf
.st_mode
);
145 mt
= gmtime(&buf
.st_mtime
);
147 snprintf(datebuf
, sizeof datebuf
,
148 "%04d-%02d-%02d %02d:%02d:%02d",
149 (int)mt
->tm_year
+ 1900,
156 strlcpy(datebuf
, " ", sizeof datebuf
);
158 /* TODO: Perhaps escape special characters in fname? */
160 printf("%s ", permbuf
);
161 if (S_ISCHR(buf
.st_mode
) || S_ISBLK(buf
.st_mode
)) {
163 (long)major(buf
.st_rdev
),
164 (long)minor(buf
.st_rdev
));
165 } else /* NB: use double for size since it might not fit in a long. */
166 printf("%12.0f", (double)buf
.st_size
);
167 printf(" %6ld.%-6ld %6ld %s %s%s\n",
168 (long)buf
.st_uid
, (long)buf
.st_gid
, (long)buf
.st_nlink
,
169 datebuf
, fname
, linkbuf
);
172 static struct poptOption long_options
[] = {
173 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
174 {"fake-super", 'f', POPT_ARG_VAL
, &am_root
, -1, 0, 0 },
175 {"help", 'h', POPT_ARG_NONE
, 0, 'h', 0, 0 },
179 static void tls_usage(int ret
)
181 FILE *F
= ret
? stderr
: stdout
;
182 fprintf(F
,"usage: " PROGRAM
" [OPTIONS] FILE ...\n");
183 fprintf(F
,"Trivial file listing program for portably checking rsync\n");
184 fprintf(F
,"\nOptions:\n");
185 fprintf(F
," -f, --fake-super display attributes including fake-super xattrs\n");
186 fprintf(F
," -h, --help show this help\n");
191 main(int argc
, char *argv
[])
194 const char **extra_args
;
197 pc
= poptGetContext(PROGRAM
, argc
, (const char **)argv
,
199 while ((opt
= poptGetNextOpt(pc
)) != -1) {
206 poptBadOption(pc
, POPT_BADOPTION_NOALIAS
),
212 extra_args
= poptGetArgs(pc
);
213 if (!extra_args
|| *extra_args
== NULL
)
216 for (; *extra_args
; extra_args
++)
217 list_file(*extra_args
);