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/* $OpenBSD: rcs.h,v 1.19 2005/04/07 22:08:57 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 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_EXP "Exp"
#define RCS_STATE_DEAD "dead"
/* lock types */
#define RCS_LOCK_LOOSE 0
#define RCS_LOCK_STRICT 1
/* 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) && (RCS_KWEXP_OLD & ~RCS_KWEXP_OLD)))
#define RCSNUM_MAXNUM USHRT_MAX
#define RCSNUM_MAXLEN 64
#define RCSNUM_ISBRANCH(n) (((n)->rn_len % 2) == 0)
/* file flags */
#define RCS_READ 0x01
#define RCS_WRITE 0x02
#define RCS_RDWR (RCS_READ|RCS_WRITE)
#define RCS_CREATE 0x04 /* create the file */
/* internal flags */
#define RCS_PARSED 0x010000 /* file has been parsed */
#define RCS_SYNCED 0x020000 /* in-memory copy is in sync with disk copy */
#define RCS_SLOCK 0x040000 /* strict lock */
/* delta flags */
#define RCS_RD_DEAD 0x01 /* dead */
/* RCS error codes */
#define RCS_ERR_NOERR 0
#define RCS_ERR_NOENT 1
#define RCS_ERR_DUPENT 2
#define RCS_ERR_BADNUM 3
typedef struct rcs_num {
u_int rn_len;
u_int16_t *rn_id;
} RCSNUM;
struct rcs_access {
char *ra_name;
uid_t ra_uid;
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;
};
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;
size_t rd_tlen;
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;
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, ...);
void rcs_close (RCSFILE *);
const RCSNUM* rcs_head_get (RCSFILE *);
int rcs_head_set (RCSFILE *, const RCSNUM *);
const RCSNUM* rcs_branch_get (RCSFILE *);
int rcs_branch_set (RCSFILE *, const RCSNUM *);
int rcs_access_add (RCSFILE *, const char *);
int rcs_access_remove (RCSFILE *, const char *);
int rcs_access_check (RCSFILE *, const char *);
int rcs_sym_add (RCSFILE *, const char *, RCSNUM *);
int rcs_sym_remove (RCSFILE *, const char *);
RCSNUM* rcs_sym_getrev (RCSFILE *, 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 RCSNUM *);
BUF* rcs_getrev (RCSFILE *, RCSNUM *);
BUF* rcs_gethead (RCSFILE *);
RCSNUM* rcs_getrevbydate (RCSFILE *, struct tm *);
const char* rcs_desc_get (RCSFILE *);
int rcs_desc_set (RCSFILE *, const char *);
const char* rcs_comment_get (RCSFILE *);
int rcs_comment_set (RCSFILE *, const char *);
int rcs_kwexp_set (RCSFILE *, int);
int rcs_kwexp_get (RCSFILE *);
RCSNUM* rcs_tag_resolve (RCSFILE *, const char *);
const char* rcs_errstr (int);
int rcs_kflag_get (const char *);
void rcs_kflag_usage (void);
int rcs_kw_expand (RCSFILE *, u_char *, size_t, size_t *);
BUF* rcs_patch (const char *, const char *);
RCSNUM* rcsnum_alloc (void);
RCSNUM* rcsnum_parse (const char *);
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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