libnss_ato_test.c

#include <stdio.h>
#include <getopt.h>
#include <sys/types.h>
#include <pwd.h>
#include <shadow.h>

struct spwd *getspnam(const char *name);

int main(int argc, char *argv[]) {

	struct passwd *p;
	struct spwd *s;

	char *usern = "pippo.pluto";

	if (argc == 2) {
		usern = argv[1];
	}

	if (!(p = getpwnam(usern))) {
		return -1;
	}

	printf("FROM PASSWORD:\n");

	printf("\tname:  %s\n", p->pw_name);
	printf("\tdir:   %s\n", p->pw_dir);
	printf("\tgecos: %s\n", p->pw_gecos);

	printf("FROM SHADOW:\n");

	if (!(s = getspnam(usern))) {
		return -1;
	}

	printf("\tname:  %s\n", s->sp_namp);
	printf("\tpass:  %s\n", s->sp_pwdp);

	return 0;
}