/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ #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_uint64(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 ", ignoring: %s", filename, line, rvalue); \ return 0; \ } \ \ *i = x; \ \ return 0; \ } #endif