1 /* Interface between the server and the rest of CVS. */ 2 3 /* Miscellaneous stuff which isn't actually particularly server-specific. */ 4 #ifndef STDIN_FILENO 5 #define STDIN_FILENO 0 6 #define STDOUT_FILENO 1 7 #define STDERR_FILENO 2 8 #endif 9 10 #ifdef SERVER_SUPPORT 11 12 /* 13 * Nonzero if we are using the server. Used by various places to call 14 * server-specific functions. 15 */ 16 extern int server_active; 17 extern int server_expanding; 18 19 /* Server functions exported to the rest of CVS. */ 20 21 /* Run the server. */ 22 extern int server PROTO((int argc, char **argv)); 23 24 /* See server.c for description. */ 25 extern void server_pathname_check PROTO ((char *)); 26 27 /* We have a new Entries line for a file. TAG or DATE can be NULL. */ 28 extern void server_register 29 PROTO((char *name, char *version, char *timestamp, 30 char *options, char *tag, char *date, char *conflict)); 31 32 /* Set the modification time of the next file sent. This must be 33 followed by a call to server_updated on the same file. */ 34 extern void server_modtime PROTO ((struct file_info *finfo, 35 Vers_TS *vers_ts)); 36 37 /* 38 * We want to nuke the Entries line for a file, and (unless 39 * server_scratch_entry_only is subsequently called) the file itself. 40 */ 41 extern void server_scratch PROTO((char *name)); 42 43 /* 44 * The file which just had server_scratch called on it needs to have only 45 * the Entries line removed, not the file itself. 46 */ 47 extern void server_scratch_entry_only PROTO((void)); 48 49 /* 50 * We just successfully checked in FILE (which is just the bare 51 * filename, with no directory). REPOSITORY is the directory for the 52 * repository. 53 */ 54 extern void server_checked_in 55 PROTO((char *file, char *update_dir, char *repository)); 56 57 extern void server_copy_file 58 PROTO((char *file, char *update_dir, char *repository, char *newfile)); 59 60 /* Send the appropriate responses for a file described by FILE, 61 UPDATE_DIR, REPOSITORY, and VERS. FILE_INFO is the result of 62 statting the file, or NULL if it hasn't been statted yet. This is 63 called after server_register or server_scratch. In the latter case 64 the file is to be removed (and vers can be NULL). In the former 65 case, vers must be non-NULL, and UPDATED indicates whether the file 66 is now up to date (SERVER_UPDATED, yes, SERVER_MERGED, no, 67 SERVER_PATCHED, yes, but file is a diff from user version to 68 repository version, SERVER_RCS_DIFF, yes, like SERVER_PATCHED but 69 with an RCS style diff). */ 70 enum server_updated_arg4 71 { 72 SERVER_UPDATED, 73 SERVER_MERGED, 74 SERVER_PATCHED, 75 SERVER_RCS_DIFF 76 }; 77 extern void server_updated 78 PROTO((struct file_info *finfo, Vers_TS *vers, 79 enum server_updated_arg4 updated, struct stat *, 80 unsigned char *checksum)); 81 82 /* Whether we should send RCS format patches. */ 83 extern int server_use_rcs_diff PROTO((void)); 84 85 /* Set the Entries.Static flag. */ 86 extern void server_set_entstat PROTO((char *update_dir, char *repository)); 87 /* Clear it. */ 88 extern void server_clear_entstat PROTO((char *update_dir, char *repository)); 89 90 /* Set or clear a per-directory sticky tag or date. */ 91 extern void server_set_sticky PROTO((char *update_dir, char *repository, 92 char *tag, char *date, int nonbranch)); 93 /* Send Template response. */ 94 extern void server_template PROTO ((char *, char *)); 95 96 extern void server_update_entries 97 PROTO((char *file, char *update_dir, char *repository, 98 enum server_updated_arg4 updated)); 99 100 /* Pointer to a malloc'd string which is the directory which 101 the server should prepend to the pathnames which it sends 102 to the client. */ 103 extern char *server_dir; 104 105 enum progs {PROG_CHECKIN, PROG_UPDATE}; 106 extern void server_prog PROTO((char *, char *, enum progs)); 107 extern void server_cleanup PROTO((int sig)); 108 109 #ifdef SERVER_FLOWCONTROL 110 /* Pause if it's convenient to avoid memory blowout */ 111 extern void server_pause_check PROTO((void)); 112 #endif /* SERVER_FLOWCONTROL */ 113 114 #ifdef AUTH_SERVER_SUPPORT 115 extern char *CVS_Username; 116 extern int system_auth; 117 #endif /* AUTH_SERVER_SUPPORT */ 118 119 #endif /* SERVER_SUPPORT */ 120 121 /* Stuff shared with the client. */ 122 struct request 123 { 124 /* Name of the request. */ 125 char *name; 126 127 #ifdef SERVER_SUPPORT 128 /* 129 * Function to carry out the request. ARGS is the text of the command 130 * after name and, if present, a single space, have been stripped off. 131 */ 132 void (*func) PROTO((char *args)); 133 #endif 134 135 /* Stuff for use by the client. */ 136 enum { 137 /* 138 * Failure to implement this request can imply a fatal 139 * error. This should be set only for commands which were in the 140 * original version of the protocol; it should not be set for new 141 * commands. 142 */ 143 rq_essential, 144 145 /* Some servers might lack this request. */ 146 rq_optional, 147 148 /* 149 * Set by the client to one of the following based on what this 150 * server actually supports. 151 */ 152 rq_supported, 153 rq_not_supported, 154 155 /* 156 * If the server supports this request, and we do too, tell the 157 * server by making the request. 158 */ 159 rq_enableme 160 } status; 161 }; 162 163 /* Table of requests ending with an entry with a NULL name. */ 164 extern struct request requests[]; 165 166 /* Gzip library, see zlib.c. */ 167 extern void gunzip_and_write PROTO ((int, char *, unsigned char *, size_t)); 168 extern void read_and_gzip PROTO ((int, char *, unsigned char **, size_t *, 169 size_t *, int)); 170