/* simple checkpassword wrapper to send userdb data back to dovecot-auth */

#include "lib.h"
#include "str.h"
#include "write-full.h"

#include <stdlib.h>
#include <unistd.h>

int main(void)
{
	string_t *str;
	const char *user, *home;
	const char *extra_env, *value, *const *tmp;

	lib_init();
	str = t_str_new(1024);

	user = getenv("USER");
	if (user != NULL) {
		if (strchr(user, '\t') != NULL) {
			i_error("checkpassword: USER contains TAB");
			return 1;
		}
		str_printfa(str, "user=%s\t", user);
	}

	home = getenv("HOME");
	if (home != NULL) {
		if (strchr(home, '\t') != NULL) {
			i_error("checkpassword: HOME contains TAB");
			return 1;
		}
		str_printfa(str, "userdb_home=%s\t", home);
	}

	str_printfa(str, "userdb_uid=%s\tuserdb_gid=%s\t",
		    dec2str(getuid()), dec2str(getgid()));

	extra_env = getenv("EXTRA");
	if (extra_env != NULL) {
		for (tmp = t_strsplit(extra_env, " "); *tmp != NULL; tmp++) {
			value = getenv(*tmp);
			if (value != NULL) {
				str_printfa(str, "%s=%s\t",
					    t_str_lcase(*tmp), value);
			}
		}
	}

	if (write_full(4, str_data(str), str_len(str)) < 0) {
		i_error("checkpassword: write_full() failed: %m");
		exit(111);
	}
	return 0;
}