reread.c

#include <err.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include <locale.h>
#include "confuse.h"
 
cfg_t *cfg = 0;
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()
    };
 
    char *buf = ""
        " delay = 3\n" "# message = \"asdfasfasfd tersf\"\n" " argument one { value = 1 }\n" " argument two { value=foo}\n";
 
    cfg_free(cfg);
 
    cfg = cfg_init(opts, 0);
    if (cfg_parse_buf(cfg, buf) != CFG_SUCCESS)
        errx(1, "Failed parsing configuration!\n");
 
    cfg_parse(cfg, config_filename);
}
 
void sighandler(int sig)
{
    read_config();
    signal(SIGHUP, sighandler);
}
 
static int loop = 1;
 
void usr1handler(int sig)
{
    loop = 0;
}
 
int main(void)
{
    unsigned int i;
 
    /* Localize messages & types according to environment, since v2.9 */
#ifdef LC_MESSAGES
    setlocale(LC_MESSAGES, "");
    setlocale(LC_CTYPE, "");
#endif
 
    read_config();
    signal(SIGHUP, sighandler);
    signal(SIGUSR1, usr1handler);
 
    while (loop) {
        printf("Message: %s", cfg_getstr(cfg, "message"));
        for (i = 0; i < cfg_size(cfg, "argument"); i++) {
            cfg_t *arg = cfg_getnsec(cfg, "argument", i);
 
            printf(", %s", cfg_getstr(arg, "value"));
        }
        printf("\n");
 
        sleep(cfg_getint(cfg, "delay"));
    }
 
    cfg_free(cfg);
    cfg = 0;
 
    return 0;
}