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85 lines
4.9 KiB
C
85 lines
4.9 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#ifndef fooconfparserhfoo
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#define fooconfparserhfoo
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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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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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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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 systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdio.h>
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#include <stdbool.h>
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/* An abstract parser for simple, line based, shallow configuration
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* files consisting of variable assignments only. */
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typedef int (*ConfigParserCallback)(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
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/* Wraps info for parsing a specific configuration variable */
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typedef struct ConfigItem {
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const char *lvalue; /* name of the variable */
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ConfigParserCallback parse; /* Function that is called to parse the variable's value */
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void *data; /* Where to store the variable's data */
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const char *section;
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} ConfigItem;
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/* The configuration file parsing routine. Expects a table of
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* config_items in *t that is terminated by an item where lvalue is
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* NULL */
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int config_parse(const char *filename, FILE *f, const char* const *sections, const ConfigItem *t, bool relaxed, void *userdata);
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/* Generic parsers */
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int config_parse_int(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
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int config_parse_unsigned(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
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int config_parse_uint64(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
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int config_parse_size(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
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int config_parse_bool(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
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int config_parse_string(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
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int config_parse_path(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
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int config_parse_strv(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
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int config_parse_path_strv(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata);
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#define DEFINE_CONFIG_PARSE_ENUM(function,name,type,msg) \
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int function( \
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const char *filename, \
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unsigned line, \
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const char *section, \
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const char *lvalue, \
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const char *rvalue, \
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void *data, \
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void *userdata) { \
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\
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type *i = data, x; \
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\
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assert(filename); \
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assert(lvalue); \
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assert(rvalue); \
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assert(data); \
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\
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if ((x = name##_from_string(rvalue)) < 0) { \
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log_error("[%s:%u] " msg ", ignoring: %s", filename, line, rvalue); \
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return 0; \
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} \
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\
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*i = x; \
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\
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return 0; \
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}
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#endif
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