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/* parseconf.h - state machine-driven dynamic configuration file parser
Copyright (C) 2002 Russell Kroll <rkroll@exploits.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef PARSECONF_H_SEEN
#define PARSECONF_H_SEEN 1
#include <stdio.h>
#ifdef __cplusplus
/* *INDENT-OFF* */
extern "C" {
/* *INDENT-ON* */
#endif
#define PCONF_CTX_t_MAGIC 0x00726630
#define PCONF_ERR_LEN 256
/* conservative defaults: use at most 16 KB for parsing any given line */
#define PCONF_DEFAULT_ARG_LIMIT 32
#define PCONF_DEFAULT_WORDLEN_LIMIT 512
typedef struct {
FILE *f; /* stream to current file */
int state; /* current parser state */
int ch; /* last character read */
char **arglist; /* array of pointers to words */
size_t *argsize; /* list of sizes for realloc */
size_t numargs; /* max usable in arglist */
size_t maxargs; /* for reallocing arglist */
char *wordbuf; /* accumulator for current word */
char *wordptr; /* where next char goes in word */
size_t wordbufsize; /* for reallocing wordbuf */
int linenum; /* for good error reporting */
int error; /* set when an error occurred */
char errmsg[PCONF_ERR_LEN]; /* local buffer for errors */
void (*errhandler)(const char *); /* user's error handler */
int magic; /* buffer validity check */
/* these may be redefined by the caller to customize memory use */
size_t arg_limit; /* halts growth of arglist */
size_t wordlen_limit; /* halts growth of any wordbuf */
} PCONF_CTX_t;
int pconf_init(PCONF_CTX_t *ctx, void errhandler(const char *));
int pconf_file_begin(PCONF_CTX_t *ctx, const char *fn);
int pconf_file_next(PCONF_CTX_t *ctx);
int pconf_parse_error(PCONF_CTX_t *ctx);
int pconf_line(PCONF_CTX_t *ctx, const char *line);
void pconf_finish(PCONF_CTX_t *ctx);
char *pconf_encode(const char *src, char *dest, size_t destsize);
int pconf_char(PCONF_CTX_t *ctx, char ch);
#ifdef __cplusplus
/* *INDENT-OFF* */
}
/* *INDENT-ON* */
#endif
#endif /* PARSECONF_H_SEEN */
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