external/gpl2/xcvs/dist/src/version.c

   1 /*
   2  * Copyright (C) 1986-2005 The Free Software Foundation, Inc.
   3  *
   4  * Portions Copyright (C) 1998-2005 Derek Price, Ximbiot <http://ximbiot.com>,
   5  *                                  and others.
   6  *
   7  * Portions Copyright (C) 1994 david d `zoo' zuhn
   8  * Portions Copyright (C) 1992, Brian Berliner and Jeff Polk
   9  * Portions Copyright (C) 1989-1992, Brian Berliner
  10  *
  11  * You may distribute under the terms of the GNU General Public License as
  12  * specified in the README file that comes with this  CVS source distribution.
  13  *
  14  * version.c - the CVS version number
  15  */
  16
  17 #include "cvs.h"
  18
  19 #ifdef CLIENT_SUPPORT
  20 #ifdef SERVER_SUPPORT
  21 char *config_string = " (client/server)\n";
  22 #else
  23 char *config_string = " (client)\n";
  24 #endif
  25 #else
  26 #ifdef SERVER_SUPPORT
  27 char *config_string = " (server)\n";
  28 #else
  29 char *config_string = "\n";
  30 #endif
  31 #endif
  32
  33
  34
  35 static const char *const version_usage[] =
  36 {
  37     "Usage: %s %s\n",
  38     NULL
  39 };
  40
  41
  42
  43 /*
  44  * Output a version string for the client and server.
  45  *
  46  * This function will output the simple version number (for the '--version'
  47  * option) or the version numbers of the client and server (using the 'version'
  48  * command).
  49  */
  50 int
  51 version (int argc, char **argv)
  52 {
  53     int err = 0;
  54
  55     if (argc == -1)
  56         usage (version_usage);
  57
  58     if (current_parsed_root && current_parsed_root->isremote)
  59         (void) fputs ("Client: ", stdout);
  60
  61     /* Having the year here is a good idea, so people have
  62        some idea of how long ago their version of CVS was
  63        released.  */
  64     (void) fputs (PACKAGE_STRING, stdout);
  65     (void) fputs (config_string, stdout);
  66
  67 #ifdef CLIENT_SUPPORT
  68     if (current_parsed_root && current_parsed_root->isremote)
  69     {
  70         (void) fputs ("Server: ", stdout);
  71         start_server ();
  72         if (supported_request ("version"))
  73             send_to_server ("version\012", 0);
  74         else
  75         {
  76             send_to_server ("noop\012", 0);
  77             fputs ("(unknown)\n", stdout);
  78         }
  79         err = get_responses_and_close ();
  80     }
  81 #endif
  82     return err;
  83 }
  84