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