tls.c

   1 /* -*- c-file-style: "linux" -*-
   2  *
   3  * Copyright (C) 2001 by Martin Pool
   4  *
   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.
   8  *
   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.
  13  *
  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 /**
  20  * \section tls
  21  *
  22  * tls -- Trivial recursive ls, for comparing two directories after
  23  * running an rsync.
  24  *
  25  * The problem with using the system's own ls is that some features
  26  * have little quirks that make directories look different when for
  27  * our purposes they're the same -- for example, the BSD braindamage
  28  * about setting the mode on symlinks based on your current umask.
  29  *
  30  * There are some restrictions compared to regular ls: all the names
  31  * on the command line must be directories rather than files; you
  32  * can't give wildcards either.
  33  *
  34  * At the moment we don't sort the output, but all the files have full
  35  * names, so you can run it through sort(1).
  36  *
  37  * We need to recurse downwards and show all the interesting
  38  * information and no more.
  39  *
  40  * \todo Use readdir64 if available?
  41  */
  42
  43
  44
  45 #include "rsync.h"
  46
  47 #define PROGRAM "tls"
  48
  49 /* These are to make syscall.o shut up. */
  50 int dry_run = 0;
  51 int read_only = 1;
  52 int list_only = 0;
  53
  54
  55 static void failed (char const *what,
  56                     char const *where)
  57 {
  58         fprintf (stderr, PROGRAM ": %s %s: %s\n",
  59                  what, where, strerror (errno));
  60         exit (1);
  61 }
  62
  63
  64
  65 static void list_dir (char const *dn)
  66 {
  67         DIR *d;
  68         struct dirent *de;
  69
  70         if (!(d = opendir (dn)))
  71                 failed ("opendir", dn);
  72
  73         while ((de = readdir (d))) {
  74                 char *dname = d_name (de);
  75                 if (!strcmp (dname, ".")  ||  !strcmp (dname, ".."))
  76                         continue;
  77                 printf ("%s\n", dname);
  78         }
  79
  80         if (closedir (d) == -1)
  81                 failed ("closedir", dn);
  82 }
  83
  84
  85 int main (int argc, char *argv[])
  86 {
  87         if (argc < 2) {
  88                 fprintf (stderr, "usage: " PROGRAM " DIR ...\n"
  89                          "Trivial file listing program for portably checking rsync\n");
  90                 return 1;
  91         }
  92
  93         for (argv++; *argv; argv++) {
  94                 list_dir (*argv);
  95         }
  96
  97         return 0;
  98 }