int lc_handle_type(lc_var_type_t type, const char *value, void *data);
#include <libconfig.h>
#include <stdlib.h>
#include <stdio.h>
int callback_size(const char *shortvar, const char *var,
const char *arguments, const char *value,
lc_flags_t flags, void *extra) {
size_t size;
int lc_ht_ret;
if (value == NULL) {
lc_seterrstr("You must specify an argument to \
Size.");
return(LC_CBRET_ERROR);
}
lc_ht_ret = lc_handle_type(LC_VAR_SIZE_SIZE_T, value, &size);
if (lc_ht_ret != 0) {
lc_seterrstr("Invalid size specified.");
return(LC_CBRET_ERROR);
}
printf("Size: %lu\n", (unsigned long) size);
return(LC_CBRET_OKAY);
}
int main(int argc, char **argv) {
int lc_rc_ret, lc_p_ret;
lc_rc_ret = lc_register_callback("Size", 0, LC_VAR_SIZE_SIZE_T,
callback_size, NULL);
if (lc_rc_ret != 0) {
fprintf(stderr, "Error registering callback.\n");
return(EXIT_FAILURE);
}
lc_p_ret = lc_process(argc, argv, "example", LC_CONF_APACHE,
NULL);
lc_cleanup();
if (lc_p_ret != 0) {
fprintf(stderr, "Error processing configuration: \
%s\n", lc_geterrstr());
return(EXIT_FAILURE);
}
return(EXIT_SUCCESS);
}