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98 lines
3.8 KiB
C
98 lines
3.8 KiB
C
/*-
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* Copyright (c) 2002-2015 Devin Teske <dteske@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _FIGPAR_H_
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#define _FIGPAR_H_
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#include <sys/types.h>
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/*
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* Union for storing various types of data in a single common container.
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*/
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union figpar_cfgvalue {
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void *data; /* Pointer to NUL-terminated string */
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char *str; /* Pointer to NUL-terminated string */
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char **strarray; /* Pointer to an array of strings */
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int32_t num; /* Signed 32-bit integer value */
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uint32_t u_num; /* Unsigned 32-bit integer value */
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uint32_t boolean:1; /* Boolean integer value (0 or 1) */
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};
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/*
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* Option types (based on above cfgvalue union)
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*/
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enum figpar_cfgtype {
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FIGPAR_TYPE_NONE = 0x0000, /* directives with no value */
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FIGPAR_TYPE_BOOL = 0x0001, /* boolean */
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FIGPAR_TYPE_INT = 0x0002, /* signed 32 bit integer */
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FIGPAR_TYPE_UINT = 0x0004, /* unsigned 32 bit integer */
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FIGPAR_TYPE_STR = 0x0008, /* string pointer */
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FIGPAR_TYPE_STRARRAY = 0x0010, /* string array pointer */
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FIGPAR_TYPE_DATA1 = 0x0020, /* void data type-1 (open) */
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FIGPAR_TYPE_DATA2 = 0x0040, /* void data type-2 (open) */
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FIGPAR_TYPE_DATA3 = 0x0080, /* void data type-3 (open) */
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FIGPAR_TYPE_RESERVED1 = 0x0100, /* reserved data type-1 */
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FIGPAR_TYPE_RESERVED2 = 0x0200, /* reserved data type-2 */
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FIGPAR_TYPE_RESERVED3 = 0x0400, /* reserved data type-3 */
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};
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/*
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* Options to parse_config() for processing_options bitmask
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*/
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#define FIGPAR_BREAK_ON_EQUALS 0x0001 /* stop reading directive at `=' */
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#define FIGPAR_BREAK_ON_SEMICOLON 0x0002 /* `;' starts a new line */
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#define FIGPAR_CASE_SENSITIVE 0x0004 /* directives are case sensitive */
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#define FIGPAR_REQUIRE_EQUALS 0x0008 /* assignment directives only */
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#define FIGPAR_STRICT_EQUALS 0x0010 /* `=' must be part of directive */
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/*
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* Anatomy of a config file option
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*/
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struct figpar_config {
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enum figpar_cfgtype type; /* Option value type */
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const char *directive; /* config file keyword */
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union figpar_cfgvalue value; /* NB: set by action */
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/*
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* Function pointer; action to be taken when the directive is found
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*/
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int (*action)(struct figpar_config *option, uint32_t line,
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char *directive, char *value);
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};
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extern struct figpar_config figpar_dummy_config;
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__BEGIN_DECLS
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int parse_config(struct figpar_config _options[],
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const char *_path,
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int (*_unknown)(struct figpar_config *_option,
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uint32_t _line, char *_directive, char *_value),
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uint16_t _processing_options);
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struct figpar_config *get_config_option(struct figpar_config _options[],
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const char *_directive);
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__END_DECLS
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#endif /* _FIGPAR_H_ */
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