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 /* We have a new Entries line for a file. TAG or DATE can be NULL. */ 25 extern void server_register 26 PROTO((char *name, char *version, char *timestamp, 27 char *options, char *tag, char *date, char *conflict)); 28 29 /* 30 * We want to nuke the Entries line for a file, and (unless 31 * server_scratch_entry_only is subsequently called) the file itself. 32 */ 33 extern void server_scratch PROTO((char *name)); 34 35 /* 36 * The file which just had server_scratch called on it needs to have only 37 * the Entries line removed, not the file itself. 38 */ 39 extern void server_scratch_entry_only PROTO((void)); 40 41 /* 42 * We just successfully checked in FILE (which is just the bare 43 * filename, with no directory). REPOSITORY is the directory for the 44 * repository. 45 */ 46 extern void server_checked_in 47 PROTO((char *file, char *update_dir, char *repository)); 48 49 extern void server_copy_file 50 PROTO((char *file, char *update_dir, char *repository, char *newfile)); 51 52 /* 53 * We just successfully updated FILE (bare filename, no directory). 54 * REPOSITORY is the directory for the repository. This is called 55 * after server_register or server_scratch, in the latter case the 56 * file is to be removed. UPDATED indicates whether the file is now 57 * up to date (SERVER_UPDATED, yes, SERVER_MERGED, no, SERVER_PATCHED, 58 * yes, but file is a diff from user version to repository version). 59 */ 60 enum server_updated_arg4 {SERVER_UPDATED, SERVER_MERGED, SERVER_PATCHED}; 61 extern void server_updated 62 PROTO((char *file, char *update_dir, char *repository, 63 enum server_updated_arg4 updated, struct stat *, 64 unsigned char *checksum)); 65 66 /* Set the Entries.Static flag. */ 67 extern void server_set_entstat PROTO((char *update_dir, char *repository)); 68 /* Clear it. */ 69 extern void server_clear_entstat PROTO((char *update_dir, char *repository)); 70 71 /* Set or clear a per-directory sticky tag or date. */ 72 extern void server_set_sticky PROTO((char *update_dir, char *repository, 73 char *tag, 74 char *date)); 75 /* Send Template response. */ 76 extern void server_template PROTO ((char *, char *)); 77 78 extern void server_update_entries 79 PROTO((char *file, char *update_dir, char *repository, 80 enum server_updated_arg4 updated)); 81 82 enum progs {PROG_CHECKIN, PROG_UPDATE}; 83 extern void server_prog PROTO((char *, char *, enum progs)); 84 extern void server_cleanup PROTO((int sig)); 85 86 #ifdef SERVER_FLOWCONTROL 87 /* Pause if it's convenient to avoid memory blowout */ 88 extern void server_pause_check PROTO((void)); 89 #endif /* SERVER_FLOWCONTROL */ 90 91 #endif /* SERVER_SUPPORT */ 92 93 /* Stuff shared with the client. */ 94 struct request 95 { 96 /* Name of the request. */ 97 char *name; 98 99 #ifdef SERVER_SUPPORT 100 /* 101 * Function to carry out the request. ARGS is the text of the command 102 * after name and, if present, a single space, have been stripped off. 103 */ 104 void (*func) PROTO((char *args)); 105 #endif 106 107 /* Stuff for use by the client. */ 108 enum { 109 /* 110 * Failure to implement this request can imply a fatal 111 * error. This should be set only for commands which were in the 112 * original version of the protocol; it should not be set for new 113 * commands. 114 */ 115 rq_essential, 116 117 /* Some servers might lack this request. */ 118 rq_optional, 119 120 /* 121 * Set by the client to one of the following based on what this 122 * server actually supports. 123 */ 124 rq_supported, 125 rq_not_supported, 126 127 /* 128 * If the server supports this request, and we do too, tell the 129 * server by making the request. 130 */ 131 rq_enableme 132 } status; 133 }; 134 135 /* Table of requests ending with an entry with a NULL name. */ 136 extern struct request requests[]; 137 138 extern int use_unchanged; 139