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/* $OpenBSD: rcs.h,v 1.19 2024/05/21 05:00:48 jsg Exp $ */
/*
* Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef RCS_H
#define RCS_H
#include <sys/queue.h>
#include <stdio.h>
#include "buf.h"
#define RCS_DIFF_MAXARG 32
#define RCS_DIFF_DIV \
"==================================================================="
#define RCSDIR "RCS"
#define RCS_FILE_EXT ",v"
#define RCS_HEAD_BRANCH "HEAD"
#define RCS_HEAD_INIT "1.1"
#define RCS_HEAD_REV ((RCSNUM *)(-1))
#define RCS_STATE_INVALCHAR "$,:;@"
#define RCS_SYM_INVALCHAR "$,.:;@"
#define RCS_MAGIC_BRANCH ".0."
#define RCS_STATE_EXP "Exp"
#define RCS_STATE_DEAD "dead"
/* lock types */
#define RCS_LOCK_INVAL (-1)
#define RCS_LOCK_LOOSE 0
#define RCS_LOCK_STRICT 1
/*
* Keyword expansion table
*/
#define RCS_KW_AUTHOR 0x1000
#define RCS_KW_DATE 0x2000
#define RCS_KW_LOG 0x4000
#define RCS_KW_NAME 0x8000
#define RCS_KW_RCSFILE 0x0100
#define RCS_KW_REVISION 0x0200
#define RCS_KW_SOURCE 0x0400
#define RCS_KW_STATE 0x0800
#define RCS_KW_FULLPATH 0x0010
#define RCS_KW_MDOCDATE 0x0020
#define RCS_KW_LOCKER 0x10000
#define RCS_KW_ID \
(RCS_KW_RCSFILE | RCS_KW_REVISION | RCS_KW_DATE \
| RCS_KW_AUTHOR | RCS_KW_STATE | RCS_KW_LOCKER)
#define RCS_KW_HEADER (RCS_KW_ID | RCS_KW_FULLPATH)
/* RCS keyword expansion modes (kflags) */
#define RCS_KWEXP_NONE 0x00
#define RCS_KWEXP_NAME 0x01 /* include keyword name */
#define RCS_KWEXP_VAL 0x02 /* include keyword value */
#define RCS_KWEXP_LKR 0x04 /* include name of locker */
#define RCS_KWEXP_OLD 0x08 /* generate old keyword string */
#define RCS_KWEXP_ERR 0x10 /* mode has an error */
#define RCS_KWEXP_DEFAULT (RCS_KWEXP_NAME | RCS_KWEXP_VAL)
#define RCS_KWEXP_KVL (RCS_KWEXP_NAME | RCS_KWEXP_VAL | RCS_KWEXP_LKR)
#define RCS_KWEXP_INVAL(k) \
((k & RCS_KWEXP_ERR) || \
((k & RCS_KWEXP_OLD) && (k & ~RCS_KWEXP_OLD)))
struct rcs_kw {
char kw_str[16];
int kw_type;
};
#define RCS_NKWORDS (sizeof(rcs_expkw)/sizeof(rcs_expkw[0]))
#define RCSNUM_MAXNUM USHRT_MAX
#define RCSNUM_MAXLEN 64
#define RCSNUM_ISBRANCH(n) ((n)->rn_len % 2)
#define RCSNUM_ISBRANCHREV(n) (!((n)->rn_len % 2) && ((n)->rn_len >= 4))
#define RCSNUM_NO_MAGIC (1<<0)
/* file flags */
#define RCS_READ (1<<0)
#define RCS_WRITE (1<<1)
#define RCS_RDWR (RCS_READ|RCS_WRITE)
#define RCS_CREATE (1<<2) /* create the file */
#define RCS_PARSE_FULLY (1<<3) /* fully parse it on open */
/* internal flags */
#define RCS_PARSED (1<<4) /* file has been parsed */
#define RCS_SYNCED (1<<5) /* in-mem copy is sync with disk copy */
#define RCS_SLOCK (1<<6) /* strict lock */
/* parser flags */
#define PARSED_DELTAS (1<<7) /* all deltas are parsed */
#define PARSED_DESC (1<<8) /* the description is parsed */
#define PARSED_DELTATEXTS (1<<9) /* all delta texts are parsed */
/* delta flags */
#define RCS_RD_DEAD 0x01 /* dead */
#define RCS_RD_SELECT 0x02 /* select for operation */
/* RCS error codes */
#define RCS_ERR_NOERR 0
#define RCS_ERR_NOENT 1
#define RCS_ERR_DUPENT 2
#define RCS_ERR_BADNUM 3
#define RCS_ERR_BADSYM 4
#define RCS_ERR_PARSE 5
#define RCS_ERR_ERRNO 255
/* used for rcs_checkout_rev */
#define CHECKOUT_REV_CREATED 1
#define CHECKOUT_REV_MERGED 2
#define CHECKOUT_REV_REMOVED 3
#define CHECKOUT_REV_UPDATED 4
/* commitids in cvs/cvsnt can be up to 64 bytes */
#define RCS_COMMITID_MAXLEN 64
typedef struct rcs_num {
u_int rn_len;
u_int16_t *rn_id;
} RCSNUM;
struct rcs_access {
char *ra_name;
TAILQ_ENTRY(rcs_access) ra_list;
};
struct rcs_sym {
char *rs_name;
RCSNUM *rs_num;
TAILQ_ENTRY(rcs_sym) rs_list;
};
struct rcs_lock {
char *rl_name;
RCSNUM *rl_num;
TAILQ_ENTRY(rcs_lock) rl_list;
};
struct rcs_branch {
RCSNUM *rb_num;
TAILQ_ENTRY(rcs_branch) rb_list;
};
TAILQ_HEAD(rcs_dlist, rcs_delta);
struct rcs_delta {
RCSNUM *rd_num;
RCSNUM *rd_next;
u_int rd_flags;
struct tm rd_date;
char *rd_author;
char *rd_state;
char *rd_commitid;
char *rd_log;
char *rd_locker;
u_char *rd_text;
size_t rd_tlen;
TAILQ_HEAD(, rcs_branch) rd_branches;
TAILQ_ENTRY(rcs_delta) rd_list;
};
typedef struct rcs_file {
FILE *rf_file;
char *rf_path;
mode_t rf_mode;
u_int rf_flags;
RCSNUM *rf_head;
RCSNUM *rf_branch;
char *rf_comment;
char *rf_expand;
char *rf_desc;
u_int rf_ndelta;
struct rcs_dlist rf_delta;
TAILQ_HEAD(rcs_alist, rcs_access) rf_access;
TAILQ_HEAD(rcs_slist, rcs_sym) rf_symbols;
TAILQ_HEAD(rcs_llist, rcs_lock) rf_locks;
void *rf_pdata;
} RCSFILE;
extern int rcs_errno;
RCSFILE *rcs_open(const char *, int, int, ...);
void rcs_close(RCSFILE *);
int rcs_head_set(RCSFILE *, RCSNUM *);
const RCSNUM *rcs_branch_get(RCSFILE *);
int rcs_access_add(RCSFILE *, const char *);
int rcs_access_remove(RCSFILE *, const char *);
struct rcs_delta *rcs_findrev(RCSFILE *, RCSNUM *);
int rcs_sym_add(RCSFILE *, const char *, RCSNUM *);
int rcs_sym_remove(RCSFILE *, const char *);
RCSNUM *rcs_sym_getrev(RCSFILE *, const char *);
int rcs_sym_check(const char *);
int rcs_lock_getmode(RCSFILE *);
int rcs_lock_setmode(RCSFILE *, int);
int rcs_lock_add(RCSFILE *, const char *, RCSNUM *);
int rcs_lock_remove(RCSFILE *, const char *, RCSNUM *);
BUF *rcs_getrev(RCSFILE *, RCSNUM *);
int rcs_deltatext_set(RCSFILE *, RCSNUM *, BUF *);
void rcs_desc_set(RCSFILE *, const char *);
void rcs_comment_set(RCSFILE *, const char *);
BUF *rcs_kwexp_buf(BUF *, RCSFILE *, RCSNUM *);
void rcs_kwexp_set(RCSFILE *, int);
int rcs_kwexp_get(RCSFILE *);
int rcs_rev_add(RCSFILE *, RCSNUM *, const char *, time_t,
const char *);
time_t rcs_rev_getdate(RCSFILE *, RCSNUM *);
int rcs_rev_setlog(RCSFILE *, RCSNUM *, const char *);
int rcs_rev_remove(RCSFILE *, RCSNUM *);
int rcs_state_set(RCSFILE *, RCSNUM *, const char *);
int rcs_state_check(const char *);
void rcs_write(RCSFILE *);
void rcs_delta_stats(struct rcs_delta *, int *, int *);
int rcs_kflag_get(const char *);
RCSNUM *rcsnum_alloc(void);
RCSNUM *rcsnum_parse(const char *);
RCSNUM *rcsnum_brtorev(const RCSNUM *);
RCSNUM *rcsnum_revtobr(const RCSNUM *);
RCSNUM *rcsnum_inc(RCSNUM *);
void rcsnum_free(RCSNUM *);
int rcsnum_addmagic(RCSNUM *);
int rcsnum_aton(const char *, const char **, RCSNUM *);
char *rcsnum_tostr(const RCSNUM *, char *, size_t);
void rcsnum_cpy(const RCSNUM *, RCSNUM *, u_int);
int rcsnum_cmp(const RCSNUM *, const RCSNUM *, u_int);
/* rcstime.c */
void rcs_set_tz(char *, struct rcs_delta *, struct tm *);
extern char *timezone_flag;
extern int rcsnum_flags;
#endif /* RCS_H */
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