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 * You may distribute under the terms of the GNU General Public License as 8 * specified in the README file that comes with the CVS kit. 9 * 10 * 11 * 12 * This file contains the interface between the server and the rest of CVS. 13 */ 14 15 /* Miscellaneous stuff which isn't actually particularly server-specific. */ 16 #ifndef STDIN_FILENO 17 #define STDIN_FILENO 0 18 #define STDOUT_FILENO 1 19 #define STDERR_FILENO 2 20 #endif 21 22 23 /* 24 * Nonzero if we are using the server. Used by various places to call 25 * server-specific functions. 26 */ 27 extern int server_active; 28 29 /* 30 * Expand to `S', ` ', or the empty string. Used in `%s-> ...' trace printfs. 31 */ 32 #ifdef SERVER_SUPPORT 33 # define CLIENT_SERVER_STR ((server_active) ? "S" : " ") 34 #else 35 # define CLIENT_SERVER_STR "" 36 #endif 37 38 #ifdef SERVER_SUPPORT 39 40 /* Server functions exported to the rest of CVS. */ 41 42 /* pre-parse the server options. */ 43 void parseServerOptions (int argc, char **argv); 44 45 /* Run the server. */ 46 int server (int argc, char **argv); 47 48 /* kserver user authentication. */ 49 # ifdef HAVE_KERBEROS 50 void kserver_authenticate_connection (void); 51 # endif 52 53 /* pserver user authentication. */ 54 # if defined (AUTH_SERVER_SUPPORT) || defined (HAVE_GSSAPI) 55 void pserver_authenticate_connection (void); 56 # endif 57 58 /* See server.c for description. */ 59 void server_pathname_check (char *); 60 61 /* We have a new Entries line for a file. TAG or DATE can be NULL. */ 62 void server_register (const char *name, const char *version, 63 const char *timestamp, const char *options, 64 const char *tag, const char *date, const char *conflict); 65 66 /* Set the modification time of the next file sent. This must be 67 followed by a call to server_updated on the same file. */ 68 void server_modtime (struct file_info *finfo, Vers_TS *vers_ts); 69 70 /* 71 * We want to nuke the Entries line for a file, and (unless 72 * server_scratch_entry_only is subsequently called) the file itself. 73 */ 74 void server_scratch (const char *name); 75 76 /* 77 * The file which just had server_scratch called on it needs to have only 78 * the Entries line removed, not the file itself. 79 */ 80 void server_scratch_entry_only (void); 81 82 /* 83 * We just successfully checked in FILE (which is just the bare 84 * filename, with no directory). REPOSITORY is the directory for the 85 * repository. 86 */ 87 void server_checked_in (const char *file, const char *update_dir, 88 const char *repository); 89 90 void server_copy_file (const char *file, const char *update_dir, 91 const char *repository, const char *newfile); 92 93 /* Send the appropriate responses for a file described by FINFO and 94 VERS. This is called after server_register or server_scratch. In 95 the latter case the file is to be removed (and VERS can be NULL). 96 In the former case, VERS must be non-NULL, and UPDATED indicates 97 whether the file is now up to date (SERVER_UPDATED, yes, 98 SERVER_MERGED, no, SERVER_PATCHED, yes, but file is a diff from 99 user version to repository version, SERVER_RCS_DIFF, yes, like 100 SERVER_PATCHED but with an RCS style diff). MODE is the mode the 101 file should get, or (mode_t) -1 if this should be obtained from the 102 file itself. CHECKSUM is the MD5 checksum of the file, or NULL if 103 this need not be sent. If FILEBUF is not NULL, it holds the 104 contents of the file, in which case the file itself may not exist. 105 If FILEBUF is not NULL, server_updated will free it. */ 106 enum server_updated_arg4 107 { 108 SERVER_UPDATED, 109 SERVER_MERGED, 110 SERVER_PATCHED, 111 SERVER_RCS_DIFF 112 }; 113 114 struct buffer; 115 116 void server_updated (struct file_info *finfo, Vers_TS *vers, 117 enum server_updated_arg4 updated, mode_t mode, 118 unsigned char *checksum, struct buffer *filebuf); 119 120 /* Whether we should send RCS format patches. */ 121 int server_use_rcs_diff (void); 122 123 /* Set the Entries.Static flag. */ 124 void server_set_entstat (const char *update_dir, const char *repository); 125 /* Clear it. */ 126 void server_clear_entstat (const char *update_dir, const char *repository); 127 128 /* Set or clear a per-directory sticky tag or date. */ 129 void server_set_sticky (const char *update_dir, const char *repository, 130 const char *tag, const char *date, int nonbranch); 131 132 /* Send Clear-template response. */ 133 void server_clear_template (const char *update_dir, const char *repository); 134 135 /* Send Template response. */ 136 void server_template (const char *update_dir, const char *repository); 137 138 void server_update_entries (const char *file, const char *update_dir, 139 const char *repository, 140 enum server_updated_arg4 updated); 141 142 /* Pointer to a malloc'd string which is the directory which 143 the server should prepend to the pathnames which it sends 144 to the client. */ 145 extern char *server_dir; 146 147 void server_cleanup (void); 148 149 #ifdef SERVER_FLOWCONTROL 150 /* Pause if it's convenient to avoid memory blowout */ 151 void server_pause_check (void); 152 #endif /* SERVER_FLOWCONTROL */ 153 154 #ifdef AUTH_SERVER_SUPPORT 155 extern char *CVS_Username; 156 #endif /* AUTH_SERVER_SUPPORT */ 157 158 #endif /* SERVER_SUPPORT */ 159 160 /* Stuff shared with the client. */ 162 struct request 163 { 164 /* Name of the request. */ 165 char *name; 166 167 #ifdef SERVER_SUPPORT 168 /* 169 * Function to carry out the request. ARGS is the text of the command 170 * after name and, if present, a single space, have been stripped off. 171 */ 172 void (*func) (char *args); 173 #endif 174 175 /* One or more of the RQ_* flags described below. */ 176 int flags; 177 178 /* If set, failure to implement this request can imply a fatal 179 error. This should be set only for commands which were in the 180 original version of the protocol; it should not be set for new 181 commands. */ 182 #define RQ_ESSENTIAL 1 183 184 /* Set by the client if the server we are talking to supports it. */ 185 #define RQ_SUPPORTED 2 186 187 /* If set, and client and server both support the request, the 188 client should tell the server by making the request. */ 189 #define RQ_ENABLEME 4 190 191 /* The server may accept this request before "Root". */ 192 #define RQ_ROOTLESS 8 193 }; 194 195 /* Table of requests ending with an entry with a NULL name. */ 196 extern struct request requests[]; 197 198 /* Gzip library, see zlib.c. */ 199 int gunzip_and_write (int, const char *, unsigned char *, size_t); 200 int read_and_gzip (int, const char *, unsigned char **, size_t *, size_t *, 201 int); 202 void server_edit_file (struct file_info *finfo); 203 204 /* The TRACE macro */ 205 void cvs_trace (int level, const char *fmt, ...) 206 __attribute__ ((__format__ (__printf__, 2, 3))); 207 #define TRACE cvs_trace 208 /* Trace levels: 209 * 210 * TRACE_FUNCTION Trace function calls, often including function 211 * arguments. This is the trace level that, historically, 212 * applied to all trace calls. 213 * TRACE_FLOW Include the flow control functions, such as 214 * start_recursion, do_recursion, and walklist in the 215 * function traces. 216 * TRACE_DATA Trace important internal function data. 217 */ 218 #define TRACE_FUNCTION 1 219 #define TRACE_FLOW 2 220 #define TRACE_DATA 3 221 222 extern cvsroot_t *referrer; 223
Indexes created Thu Jun 25 00:25:11 UTC 2026