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/*-*- Mode: C; c-basic-offset: 8 -*-*/
#ifndef fooconfparserhfoo
#define fooconfparserhfoo
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd 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.
systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdio.h>
#include <stdbool.h>
/* An abstract parser for simple, line based, shallow configuration
* files consisting of variable assignments only. */
typedef int (*ConfigParserCallback)(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
/* Wraps info for parsing a specific configuration variable */
typedef struct ConfigItem {
const char *lvalue; /* name of the variable */
ConfigParserCallback parse; /* Function that is called to parse the variable's value */
void *data; /* Where to store the variable's data */
const char *section;
} ConfigItem;
/* The configuration file parsing routine. Expects a table of
* config_items in *t that is terminated by an item where lvalue is
* NULL */
int config_parse(const char *filename, FILE *f, const char* const *sections, const ConfigItem *t, bool relaxed, void *userdata);
/* Generic parsers */
int config_parse_int(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
int config_parse_unsigned(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
int config_parse_size(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
int config_parse_bool(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
int config_parse_string(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
int config_parse_path(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
int config_parse_strv(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
int config_parse_path_strv(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
#define DEFINE_CONFIG_PARSE_ENUM(function,name,type,msg) \
int function( \
const char *filename, \
unsigned line, \
const char *section, \
const char *lvalue, \
const char *rvalue, \
void *data, \
void *userdata) { \
\
type *i = data, x; \
\
assert(filename); \
assert(lvalue); \
assert(rvalue); \
assert(data); \
\
if ((x = name##_from_string(rvalue)) < 0) { \
log_error("[%s:%u] " msg ": %s", filename, line, rvalue); \
return -EBADMSG; \
} \
\
*i = x; \
\
return 0; \
}
#endif
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