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/* $OpenBSD: rcs.h,v 1.5 2005/01/03 22:10:12 jfb 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/types.h>
#include <sys/queue.h>
#include <time.h>
#include "buf.h"
#define RCS_DIFF_MAXARG 32
#define RCS_DIFF_DIV \
"==================================================================="
#define RCS_FILE_EXT ",v"
#define RCS_HEAD_INIT "1.1"
/* open modes */
#define RCS_MODE_READ 0x01
#define RCS_MODE_WRITE 0x02
#define RCS_MODE_RDWR (RCS_MODE_READ|RCS_MODE_WRITE)
/* file flags */
#define RCS_RF_PARSED 0x01 /* file has been parsed */
#define RCS_RF_SYNCED 0x02 /* in-memory copy is in sync with disk copy */
#define RCS_RF_SLOCK 0x04 /* strict lock */
/* delta flags */
#define RCS_RD_DEAD 0x01 /* dead */
#define RCSNUM_MAXNUM USHRT_MAX
#define RCSNUM_MAXLEN 64
typedef struct rcs_num {
u_int rn_len;
u_int16_t *rn_id;
} RCSNUM;
struct rcs_sym {
char *rs_name;
RCSNUM *rs_num;
TAILQ_ENTRY(rcs_sym) rs_list;
};
struct rcs_lock {
RCSNUM *rl_num;
TAILQ_ENTRY(rcs_lock) rl_list;
};
struct rcs_branch {
RCSNUM *rb_num;
TAILQ_ENTRY(rcs_branch) rb_list;
};
struct rcs_dlist {
struct rcs_delta *tqh_first;
struct rcs_delta **tqh_last;
};
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_log;
char *rd_text;
struct rcs_dlist rd_snodes;
TAILQ_HEAD(, rcs_branch) rd_branches;
TAILQ_ENTRY(rcs_delta) rd_list;
};
typedef struct rcs_file {
char *rf_path;
u_int rf_ref;
u_int rf_mode;
u_int rf_flags;
RCSNUM *rf_head;
RCSNUM *rf_branch;
char *rf_comment;
char *rf_expand;
char *rf_desc;
struct rcs_dlist rf_delta;
TAILQ_HEAD(rcs_slist, rcs_sym) rf_symbols;
TAILQ_HEAD(rcs_llist, rcs_lock) rf_locks;
void *rf_pdata;
} RCSFILE;
RCSFILE* rcs_open (const char *, u_int);
void rcs_close (RCSFILE *);
int rcs_parse (RCSFILE *);
int rcs_write (RCSFILE *);
int rcs_addsym (RCSFILE *, const char *, RCSNUM *);
int rcs_rmsym (RCSFILE *, const char *);
BUF* rcs_getrev (RCSFILE *, RCSNUM *);
BUF* rcs_gethead (RCSFILE *);
RCSNUM* rcs_getrevbydate (RCSFILE *, struct tm *);
BUF* rcs_patch (const char *, const char *);
size_t rcs_stresc (int, const char *, char *, size_t *);
RCSNUM* rcsnum_alloc (void);
void rcsnum_free (RCSNUM *);
int rcsnum_aton (const char *, char **, RCSNUM *);
char* rcsnum_tostr (const RCSNUM *, char *, size_t);
int rcsnum_cpy (const RCSNUM *, RCSNUM *, u_int);
int rcsnum_cmp (const RCSNUM *, const RCSNUM *, u_int);
/* from cache.c */
int rcs_cache_init (u_int);
RCSFILE *rcs_cache_fetch (const char *path);
int rcs_cache_store (RCSFILE *);
void rcs_cache_destroy (void);
#endif /* RCS_H */
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