mirror of https://git.lain.church/x3/caniadd.git
95 lines
2.7 KiB
C
95 lines
2.7 KiB
C
#ifndef _CONFIG_H
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#define _CONFIG_H
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#include <inttypes.h>
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#include <stdbool.h>
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#include "error.h"
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#ifndef CONFIG_DIR_NAME
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#define CONFIG_DIR_NAME "caniadd"
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#endif
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enum option_type {
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OTYPE_S, /* Stores a string */
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OTYPE_HU, /* Stores an unsigned short */
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OTYPE_B, /* Stores a boolean */
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/* Does not store anything, does an action. Handled after every
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* other option are parsed, and defaults set */
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OTYPE_ACTION,
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_OTYPE_COUNT
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};
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struct conf_entry {
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const char *l_name; /* The long name for the option, or for the config file */
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int s_name; /* Short option name */
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union { /* Value of the param */
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char *s;
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uint16_t hu;
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bool b;
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} value;
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/* The function to use to init a default value, if it's a complex one */
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int (*default_func)(struct conf_entry *ce);
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union {
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/* The function to use to set the value of the arg from the
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* command line or from the loaded config file */
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int (*set_func)(struct conf_entry *ce, char *arg);
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/* Callback for an action option */
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int (*action_func)(struct conf_entry *ce);
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};
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int has_arg : 4; /* Do we need to specify an argument for this option on the cmd line? */
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/* Did we set the value? If not, we may need to call the default func */
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bool value_is_set : 1;
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/* Is the value required? */
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bool required : 1;
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bool value_is_dyn : 1; /* Do we need to free the value? */
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bool in_file : 1; /* Is this option in the config file? */
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bool in_args : 1; /* Is this option in the argument list? */
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enum option_type type : 4; /* Type of the option's value */
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/*
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* In which step do we handle this arg?
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* We need this, because:
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* 1. Read in the base dir option from the command line, if present
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* 2. Use the base dir to load the options from the config file
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* 3. Read, and override options from the command line
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* 4. Execute action arguments
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*/
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int handle_order : 4;
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};
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/*
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* Parse options from the command line
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*
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* Returns 0 on success.
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*/
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enum error config_parse(int argc, char **argv);
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/*
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* Free any memory that may have been allocated
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* in config_parse
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*/
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int config_free();
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/*
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* Write out the options to stdout
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*/
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void config_dump();
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/*
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* Get a config option by its long name
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* The pointer to the options value will be stored, at the pointer pointed to
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* by out
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* If the option is unset, it returns ERR_OPT_UNSET and out is unchanged
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* It the options is not found, it returns ERR_OPT_NOTFOUND, and out is unchanged
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*/
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enum error config_get(const char *key, void **out);
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/*
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* Return an cmd line that is not an option
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* or null if error, or out of elements
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*/
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const char *config_get_nonopt(int index);
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int config_get_nonopt_count();
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#endif /* _CONFIG_H */
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