shadow/libmisc/pwdcheck.c

70 lines
1.3 KiB
C

#include <config.h>
#include "rcsid.h"
RCSID("$Id$")
#include "prototypes.h"
#include "defines.h"
#include <pwd.h>
#include "pwauth.h"
#ifdef HAVE_SHADOW_H
#include <shadow.h>
#endif
#ifdef USE_PAM
#include "pam_defs.h"
#endif
#define WRONGPWD2 "incorrect password for `%s'"
void
passwd_check(const char *user, const char *passwd, const char *progname)
{
#ifdef USE_PAM
pam_handle_t *pamh = NULL;
int retcode;
struct pam_conv conv = { misc_conv, NULL };
if (pam_start(progname, user, &conv, &pamh)) {
bailout:
SYSLOG((LOG_WARN, WRONGPWD2, user));
sleep(1);
fprintf(stderr, _("Incorrect password for %s.\n"), user);
exit(1);
}
if (pam_authenticate(pamh, 0))
goto bailout;
retcode = pam_acct_mgmt(pamh, 0);
if (retcode == PAM_NEW_AUTHTOK_REQD) {
retcode = pam_chauthtok(pamh, PAM_CHANGE_EXPIRED_AUTHTOK);
} else if (retcode)
goto bailout;
if (pam_setcred(pamh, 0))
goto bailout;
/* no need to establish a session; this isn't a session-oriented
* activity... */
#else /* !USE_PAM */
#ifdef SHADOWPWD
struct spwd *sp;
if ((sp = getspnam(user)))
passwd = sp->sp_pwdp;
endspent();
#endif
if (pw_auth(passwd, user, PW_LOGIN, (char *) 0) != 0) {
SYSLOG((LOG_WARN, WRONGPWD2, user));
sleep(1);
fprintf(stderr, _("Incorrect password for %s.\n"), user);
exit(1);
}
#endif /* !USE_PAM */
}