external/gpl2/xcvs/dist/src/client.h

   1 /*
   2  * Copyright (C) 1994-2005 The Free Software Foundation, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2, or (at your option)
   7  * any later version.
   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
  15 /* Interface between the client and the rest of CVS.  */
  16
  17 /* Stuff shared with the server.  */
  18 char *mode_to_string (mode_t);
  19 int change_mode (const char *, const char *, int);
  20
  21 extern int gzip_level;
  22 extern int file_gzip_level;
  23
  24 struct buffer;
  25
  26 void make_bufs_from_fds (int, int, int, cvsroot_t *,
  27                          struct buffer **, struct buffer **, int);
  28
  29
  30 #if defined (CLIENT_SUPPORT) || defined (SERVER_SUPPORT)
  31
  32 /* Whether the connection should be encrypted.  */
  33 extern int cvsencrypt;
  34
  35 /* Whether the connection should use per-packet authentication.  */
  36 extern int cvsauthenticate;
  37
  38 # ifdef ENCRYPTION
  39
  40 #   ifdef HAVE_KERBEROS
  41
  42 /* We can't declare the arguments without including krb.h, and I don't
  43    want to do that in every file.  */
  44 extern struct buffer *krb_encrypt_buffer_initialize ();
  45
  46 #   endif /* HAVE_KERBEROS */
  47
  48 # endif /* ENCRYPTION */
  49
  50 #endif /* defined (CLIENT_SUPPORT) || defined (SERVER_SUPPORT) */
  51
  52 #ifdef CLIENT_SUPPORT
  53 /*
  54  * Flag variable for seeing whether the server has been started yet.
  55  * As of this writing, only edit.c:notify_check() uses it.
  56  */
  57 extern int server_started;
  58
  59 /* Is the -P option to checkout or update specified?  */
  60 extern int client_prune_dirs;
  61
  62 # ifdef AUTH_CLIENT_SUPPORT
  63 extern int use_authenticating_server;
  64 # endif /* AUTH_CLIENT_SUPPORT */
  65 # if defined (AUTH_CLIENT_SUPPORT) || defined (HAVE_GSSAPI)
  66 void connect_to_pserver (cvsroot_t *, struct buffer **, struct buffer **,
  67                          int, int );
  68 #   ifndef CVS_AUTH_PORT
  69 #     define CVS_AUTH_PORT 2401
  70 #   endif /* CVS_AUTH_PORT */
  71 #   ifndef CVS_PROXY_PORT
  72 #     define CVS_PROXY_PORT 8080
  73 #   endif /* CVS_AUTH_PORT */
  74 # endif /* (AUTH_CLIENT_SUPPORT) || defined (HAVE_GSSAPI) */
  75
  76 # if HAVE_KERBEROS
  77 #   ifndef CVS_PORT
  78 #     define CVS_PORT 1999
  79 #   endif
  80 # endif /* HAVE_KERBEROS */
  81
  82 /* Talking to the server. */
  83 void send_to_server (const char *str, size_t len);
  84 void read_from_server (char *buf, size_t len);
  85
  86 /* Internal functions that handle client communication to server, etc.  */
  87 bool supported_request (const char *);
  88 void option_with_arg (const char *option, const char *arg);
  89
  90 /* Get the responses and then close the connection.  */
  91 int get_responses_and_close (void);
  92
  93 int get_server_responses (void);
  94
  95 /* Start up the connection to the server on the other end.  */
  96 void
  97 open_connection_to_server (cvsroot_t *root, struct buffer **to_server_p,
  98                            struct buffer **from_server_p);
  99 void
 100 start_server (void);
 101
 102 /* Send the names of all the argument files to the server.  */
 103 void
 104 send_file_names (int argc, char **argv, unsigned int flags);
 105
 106 /* Flags for send_file_names.  */
 107 /* Expand wild cards?  */
 108 # define SEND_EXPAND_WILD 1
 109
 110 /*
 111  * Send Repository, Modified and Entry.  argc and argv contain only
 112  * the files to operate on (or empty for everything), not options.
 113  * local is nonzero if we should not recurse (-l option).
 114  */
 115 void
 116 send_files (int argc, char **argv, int local, int aflag,
 117                   unsigned int flags);
 118
 119 /* Flags for send_files.  */
 120 # define SEND_BUILD_DIRS 1
 121 # define SEND_FORCE 2
 122 # define SEND_NO_CONTENTS 4
 123 # define BACKUP_MODIFIED_FILES 8
 124
 125 /* Send an argument to the remote server.  */
 126 void
 127 send_arg (const char *string);
 128
 129 /* Send a string of single-char options to the remote server, one by one.  */
 130 void
 131 send_options (int argc, char * const *argv);
 132
 133 void send_a_repository (const char *, const char *, const char *);
 134
 135 #endif /* CLIENT_SUPPORT */
 136 \f
 137 /*
 138  * This structure is used to catalog the responses the client is
 139  * prepared to see from the server.
 140  */
 141
 142 struct response
 143 {
 144     /* Name of the response.  */
 145     const char *name;
 146
 147 #ifdef CLIENT_SUPPORT
 148     /*
 149      * Function to carry out the response.  ARGS is the text of the
 150      * command after name and, if present, a single space, have been
 151      * stripped off.  The function can scribble into ARGS if it wants.
 152      * Note that although LEN is given, ARGS is also guaranteed to be
 153      * '\0' terminated.
 154      */
 155     void (*func) (char *args, size_t len);
 156
 157     /*
 158      * ok and error are special; they indicate we are at the end of the
 159      * responses, and error indicates we should exit with nonzero
 160      * exitstatus.
 161      */
 162     enum {response_type_normal, response_type_ok, response_type_error,
 163           response_type_redirect} type;
 164 #endif
 165
 166     /* Used by the server to indicate whether response is supported by
 167        the client, as set by the Valid-responses request.  */
 168     enum {
 169       /*
 170        * Failure to implement this response can imply a fatal
 171        * error.  This should be set only for responses which were in the
 172        * original version of the protocol; it should not be set for new
 173        * responses.
 174        */
 175       rs_essential,
 176
 177       /* Some clients might not understand this response.  */
 178       rs_optional,
 179
 180       /*
 181        * Set by the server to one of the following based on what this
 182        * client actually supports.
 183        */
 184       rs_supported,
 185       rs_not_supported
 186       } status;
 187 };
 188
 189 /* Table of responses ending in an entry with a NULL name.  */
 190
 191 extern struct response responses[];
 192
 193 #ifdef CLIENT_SUPPORT
 194
 195 void client_senddate (const char *date);
 196 void client_expand_modules (int argc, char **argv, int local);
 197 void client_send_expansions (int local, char *where, int build_dirs);
 198 void client_nonexpanded_setup (void);
 199
 200 void send_init_command (void);
 201
 202 extern char **failed_patches;
 203 extern int failed_patches_count;
 204 extern char *toplevel_wd;
 205 void client_import_setup (char *repository);
 206 int client_process_import_file
 207     (char *message, char *vfile, char *vtag, int targc, char *targv[],
 208      char *repository, int all_files_binary, int modtime);
 209 void client_import_done (void);
 210 void client_notify (const char *, const char *, const char *, int,
 211                     const char *);
 212
 213 #if defined AUTH_CLIENT_SUPPORT || defined HAVE_KERBEROS || defined HAVE_GSSAPI
 214 # include <sys/socket.h>
 215 # include <netinet/in.h>
 216 # include <arpa/inet.h>
 217 # include <netdb.h>
 218 struct hostent *init_sockaddr (struct sockaddr_in *, char *, unsigned int);
 219 #endif
 220
 221 #endif /* CLIENT_SUPPORT */