addsec.c

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <errno.h>
#include <string.h>
#include <locale.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include "confuse.h"
 
cfg_t *cfg = NULL;
const char *config_filename = "./reread.conf";
 
void read_config(void)
{
    static cfg_opt_t arg_opts[] = {
        CFG_STR("value", "default", CFGF_NONE),
        CFG_END()
    };
    cfg_opt_t opts[] = {
        CFG_INT("delay", 3, CFGF_NONE),
        CFG_STR("message", "This is a message", CFGF_NONE),
        CFG_SEC("argument", arg_opts, CFGF_MULTI | CFGF_TITLE),
        CFG_END()
    };
 
    cfg = cfg_init(opts, CFGF_NONE);
    if (cfg_parse(cfg, config_filename) != CFG_SUCCESS) {
        fprintf(stderr, "Failed parsing configuration: %s\n", strerror(errno));
        exit(1);
    }
}
 
void print_message()
{
    size_t i;
 
    printf("Message: %s", cfg_getstr(cfg, "message"));
    for (i = 0; i < cfg_size(cfg, "argument"); i++) {
        cfg_t *arg;
 
        arg = cfg_getnsec(cfg, "argument", i);
        if (arg)
            printf(", %s", cfg_getstr(arg, "value"));
    }
    printf("\n");
}
 
int main(void)
{
    cfg_t* sec;
 
    /* Localize messages & types according to environment, since v2.9 */
#ifdef LC_MESSAGES
    setlocale(LC_MESSAGES, "");
    setlocale(LC_CTYPE, "");
#endif
 
    read_config();
    print_message();
 
    /* "two" is new, cfg_addtsec() creates and returns it */
    sec = cfg_addtsec(cfg, "argument", "two");
    cfg_setstr(sec, "value", "foo");
 
    /*
     * "three" is already in reread.conf, cfg_addtsec() returns
     * that same section so we can update it in place
     */
    sec = cfg_addtsec(cfg, "argument", "three");
    cfg_setstr(sec, "value", "gazonk!!");
    print_message();
 
    cfg_free(cfg);
 
    return 0;
}