OpenBSD-4.6/usr.sbin/popa3d/auth_passwd.c

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/* $OpenBSD: auth_passwd.c,v 1.2 2001/09/21 20:22:06 camield Exp $ */

/*
 * The /etc/passwd authentication routine.
 */

#include "params.h"

#if AUTH_PASSWD && !VIRTUAL_ONLY

#define _XOPEN_SOURCE 4
#define _XOPEN_SOURCE_EXTENDED
#define _XOPEN_VERSION 4
#define _XPG4_2
#include <unistd.h>
#include <string.h>
#include <pwd.h>
#include <sys/types.h>

struct passwd *auth_userpass(char *user, char *pass, int *known)
{
	struct passwd *pw, *result;

	*known = (pw = getpwnam(user)) != NULL;
	endpwent();
	result = NULL;

	if (!pw || !*pw->pw_passwd ||
	    *pw->pw_passwd == '*' || *pw->pw_passwd == '!')
		crypt(pass, AUTH_DUMMY_SALT);
	else
	if (!strcmp(crypt(pass, pw->pw_passwd), pw->pw_passwd))
		result = pw;

	if (pw)
		memset(pw->pw_passwd, 0, strlen(pw->pw_passwd));

	return result;
}

#endif