rcs.h revision 1.13
1/* $OpenBSD: rcs.h,v 1.13 2010/10/20 19:53:53 tobias Exp $ */ 2/* 3 * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 16 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 17 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 18 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 24 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#ifndef RCS_H 28#define RCS_H 29 30#include <sys/queue.h> 31 32#include <stdio.h> 33 34#include "buf.h" 35 36#define RCS_DIFF_MAXARG 32 37#define RCS_DIFF_DIV \ 38 "===================================================================" 39 40#define RCSDIR "RCS" 41#define RCS_FILE_EXT ",v" 42 43#define RCS_HEAD_BRANCH "HEAD" 44#define RCS_HEAD_INIT "1.1" 45#define RCS_HEAD_REV ((RCSNUM *)(-1)) 46 47 48#define RCS_STATE_INVALCHAR "$,:;@" 49#define RCS_SYM_INVALCHAR "$,.:;@" 50 51#define RCS_MAGIC_BRANCH ".0." 52#define RCS_STATE_EXP "Exp" 53#define RCS_STATE_DEAD "dead" 54 55/* lock types */ 56#define RCS_LOCK_INVAL (-1) 57#define RCS_LOCK_LOOSE 0 58#define RCS_LOCK_STRICT 1 59 60/* 61 * Keyword expansion table 62 */ 63#define RCS_KW_AUTHOR 0x1000 64#define RCS_KW_DATE 0x2000 65#define RCS_KW_LOG 0x4000 66#define RCS_KW_NAME 0x8000 67#define RCS_KW_RCSFILE 0x0100 68#define RCS_KW_REVISION 0x0200 69#define RCS_KW_SOURCE 0x0400 70#define RCS_KW_STATE 0x0800 71#define RCS_KW_FULLPATH 0x0010 72 73#define RCS_KW_ID \ 74 (RCS_KW_RCSFILE | RCS_KW_REVISION | RCS_KW_DATE \ 75 | RCS_KW_AUTHOR | RCS_KW_STATE) 76 77#define RCS_KW_HEADER (RCS_KW_ID | RCS_KW_FULLPATH) 78 79/* RCS keyword expansion modes (kflags) */ 80#define RCS_KWEXP_NONE 0x00 81#define RCS_KWEXP_NAME 0x01 /* include keyword name */ 82#define RCS_KWEXP_VAL 0x02 /* include keyword value */ 83#define RCS_KWEXP_LKR 0x04 /* include name of locker */ 84#define RCS_KWEXP_OLD 0x08 /* generate old keyword string */ 85#define RCS_KWEXP_ERR 0x10 /* mode has an error */ 86 87#define RCS_KWEXP_DEFAULT (RCS_KWEXP_NAME | RCS_KWEXP_VAL) 88#define RCS_KWEXP_KVL (RCS_KWEXP_NAME | RCS_KWEXP_VAL | RCS_KWEXP_LKR) 89 90#define RCS_KWEXP_INVAL(k) \ 91 ((k & RCS_KWEXP_ERR) || \ 92 ((k & RCS_KWEXP_OLD) && (k & ~RCS_KWEXP_OLD))) 93 94struct rcs_kw { 95 char kw_str[16]; 96 int kw_type; 97}; 98 99#define RCS_NKWORDS (sizeof(rcs_expkw)/sizeof(rcs_expkw[0])) 100 101#define RCSNUM_MAXNUM USHRT_MAX 102#define RCSNUM_MAXLEN 64 103 104#define RCSNUM_ISBRANCH(n) ((n)->rn_len % 2) 105#define RCSNUM_ISBRANCHREV(n) (!((n)->rn_len % 2) && ((n)->rn_len >= 4)) 106#define RCSNUM_NO_MAGIC (1<<0) 107 108/* file flags */ 109#define RCS_READ (1<<0) 110#define RCS_WRITE (1<<1) 111#define RCS_RDWR (RCS_READ|RCS_WRITE) 112#define RCS_CREATE (1<<2) /* create the file */ 113#define RCS_PARSE_FULLY (1<<3) /* fully parse it on open */ 114 115/* internal flags */ 116#define RCS_PARSED (1<<4) /* file has been parsed */ 117#define RCS_SYNCED (1<<5) /* in-mem copy is sync with disk copy */ 118#define RCS_SLOCK (1<<6) /* strict lock */ 119 120/* parser flags */ 121#define PARSED_DELTAS (1<<7) /* all deltas are parsed */ 122#define PARSED_DESC (1<<8) /* the description is parsed */ 123#define PARSED_DELTATEXTS (1<<9) /* all delta texts are parsed */ 124 125/* delta flags */ 126#define RCS_RD_DEAD 0x01 /* dead */ 127#define RCS_RD_SELECT 0x02 /* select for operation */ 128 129/* RCS error codes */ 130#define RCS_ERR_NOERR 0 131#define RCS_ERR_NOENT 1 132#define RCS_ERR_DUPENT 2 133#define RCS_ERR_BADNUM 3 134#define RCS_ERR_BADSYM 4 135#define RCS_ERR_PARSE 5 136#define RCS_ERR_ERRNO 255 137 138/* used for rcs_checkout_rev */ 139#define CHECKOUT_REV_CREATED 1 140#define CHECKOUT_REV_MERGED 2 141#define CHECKOUT_REV_REMOVED 3 142#define CHECKOUT_REV_UPDATED 4 143 144typedef struct rcs_num { 145 u_int rn_len; 146 u_int16_t *rn_id; 147} RCSNUM; 148 149struct rcs_access { 150 char *ra_name; 151 TAILQ_ENTRY(rcs_access) ra_list; 152}; 153 154struct rcs_sym { 155 char *rs_name; 156 RCSNUM *rs_num; 157 TAILQ_ENTRY(rcs_sym) rs_list; 158}; 159 160struct rcs_lock { 161 char *rl_name; 162 RCSNUM *rl_num; 163 164 TAILQ_ENTRY(rcs_lock) rl_list; 165}; 166 167struct rcs_branch { 168 RCSNUM *rb_num; 169 TAILQ_ENTRY(rcs_branch) rb_list; 170}; 171 172TAILQ_HEAD(rcs_dlist, rcs_delta); 173 174struct rcs_delta { 175 RCSNUM *rd_num; 176 RCSNUM *rd_next; 177 u_int rd_flags; 178 struct tm rd_date; 179 char *rd_author; 180 char *rd_state; 181 char *rd_log; 182 char *rd_locker; 183 u_char *rd_text; 184 size_t rd_tlen; 185 186 TAILQ_HEAD(, rcs_branch) rd_branches; 187 TAILQ_ENTRY(rcs_delta) rd_list; 188}; 189 190 191typedef struct rcs_file { 192 FILE *rf_file; 193 char *rf_path; 194 mode_t rf_mode; 195 u_int rf_flags; 196 197 RCSNUM *rf_head; 198 RCSNUM *rf_branch; 199 char *rf_comment; 200 char *rf_expand; 201 char *rf_desc; 202 203 u_int rf_ndelta; 204 struct rcs_dlist rf_delta; 205 TAILQ_HEAD(rcs_alist, rcs_access) rf_access; 206 TAILQ_HEAD(rcs_slist, rcs_sym) rf_symbols; 207 TAILQ_HEAD(rcs_llist, rcs_lock) rf_locks; 208 209 void *rf_pdata; 210} RCSFILE; 211 212extern int rcs_errno; 213 214RCSFILE *rcs_open(const char *, int, int, ...); 215void rcs_close(RCSFILE *); 216const RCSNUM *rcs_head_get(RCSFILE *); 217int rcs_head_set(RCSFILE *, RCSNUM *); 218const RCSNUM *rcs_branch_get(RCSFILE *); 219int rcs_branch_set(RCSFILE *, const RCSNUM *); 220int rcs_access_add(RCSFILE *, const char *); 221int rcs_access_remove(RCSFILE *, const char *); 222int rcs_access_check(RCSFILE *, const char *); 223struct rcs_delta *rcs_findrev(RCSFILE *, RCSNUM *); 224int rcs_sym_add(RCSFILE *, const char *, RCSNUM *); 225int rcs_sym_remove(RCSFILE *, const char *); 226RCSNUM *rcs_sym_getrev(RCSFILE *, const char *); 227int rcs_sym_check(const char *); 228int rcs_lock_getmode(RCSFILE *); 229int rcs_lock_setmode(RCSFILE *, int); 230int rcs_lock_add(RCSFILE *, const char *, RCSNUM *); 231int rcs_lock_remove(RCSFILE *, const char *, RCSNUM *); 232BUF *rcs_getrev(RCSFILE *, RCSNUM *); 233int rcs_deltatext_set(RCSFILE *, RCSNUM *, BUF *); 234const char *rcs_desc_get(RCSFILE *); 235void rcs_desc_set(RCSFILE *, const char *); 236const char *rcs_comment_lookup(const char *); 237const char *rcs_comment_get(RCSFILE *); 238void rcs_comment_set(RCSFILE *, const char *); 239BUF *rcs_kwexp_buf(BUF *, RCSFILE *, RCSNUM *); 240void rcs_kwexp_set(RCSFILE *, int); 241int rcs_kwexp_get(RCSFILE *); 242int rcs_rev_add(RCSFILE *, RCSNUM *, const char *, time_t, 243 const char *); 244time_t rcs_rev_getdate(RCSFILE *, RCSNUM *); 245int rcs_rev_setlog(RCSFILE *, RCSNUM *, const char *); 246int rcs_rev_remove(RCSFILE *, RCSNUM *); 247int rcs_state_set(RCSFILE *, RCSNUM *, const char *); 248const char *rcs_state_get(RCSFILE *, RCSNUM *); 249int rcs_state_check(const char *); 250const char *rcs_errstr(int); 251void rcs_write(RCSFILE *); 252void rcs_delta_stats(struct rcs_delta *, int *, int *); 253 254int rcs_kflag_get(const char *); 255void rcs_kflag_usage(void); 256int rcs_kw_expand(RCSFILE *, u_char *, size_t, size_t *); 257 258RCSNUM *rcsnum_alloc(void); 259RCSNUM *rcsnum_parse(const char *); 260RCSNUM *rcsnum_brtorev(const RCSNUM *); 261RCSNUM *rcsnum_revtobr(const RCSNUM *); 262RCSNUM *rcsnum_inc(RCSNUM *); 263RCSNUM *rcsnum_dec(RCSNUM *); 264void rcsnum_free(RCSNUM *); 265int rcsnum_addmagic(RCSNUM *); 266int rcsnum_aton(const char *, char **, RCSNUM *); 267char *rcsnum_tostr(const RCSNUM *, char *, size_t); 268void rcsnum_cpy(const RCSNUM *, RCSNUM *, u_int); 269int rcsnum_cmp(const RCSNUM *, const RCSNUM *, u_int); 270 271/* rcstime.c */ 272void rcs_set_tz(char *, struct rcs_delta *, struct tm *); 273extern char *timezone_flag; 274extern int rcsnum_flags; 275 276#endif /* RCS_H */ 277