Attachment #136004 for bug #199193

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 *
 * /var/run/console/<username> is used for reference counting
 * and to make console authentication easy -- if it exists, then
 * <username> is logged on console.
 *
 * A system startup script should remove /var/run/console/console.lock
 * and everything in /var/run/console/

   */
    int fd;
    int count = 0;
    int err = PAM_SUCCESS;
    int delete_consolelock = 0;
    const char *username = NULL, *user_prompt;
    char *lockfile = NULL;

		_pam_log(pamh, LOG_ERR, FALSE,
			"\"impossible\" fstat error on %s", consolelock);
		close(fd);
		err = PAM_SESSION_ERR;
		goto decrement;
	    }
	    consoleuser = _do_malloc(st.st_size+1);
	    if (st.st_size) {

			    "\"impossible\" read error on %s", consolelock);
		    err = PAM_SESSION_ERR; 
		    close(fd);
		    goto decrement;
		}
		consoleuser[st.st_size] = '\0';
	    }

		 */
	 	console_run_handlers(pamh, FALSE, username, tty);
	    }
	} else {
	    /* didn't open file */
	    err = PAM_SESSION_ERR; 
	    goto return_error;
	}
    }

decrement:
    count = use_count(pamh, lockfile, -1, 1);
    if (count < 1 && delete_consolelock) {
	if (unlink(consolelock)) {
	    _pam_log(pamh, LOG_ERR, FALSE,
		     "\"impossible\" unlink error on %s", consolelock);
	    err = PAM_SESSION_ERR;
	}
    }

    err = PAM_SUCCESS;
return_error:
    if (lockfile) free(lockfile);
    if (consoleuser) free (consoleuser);

Return to bug 199193

Lines 19-25 Link Here

(-)Linux-PAM-0.99.7.1/modules/pam_console/pam_console.c.decrement (-10 / +7 lines)
19	*	19	*
20	* /var/run/console/<username> is used for reference counting	20	* /var/run/console/<username> is used for reference counting
21	* and to make console authentication easy -- if it exists, then	21	* and to make console authentication easy -- if it exists, then
22	* <username> has console access.	22	* <username> is logged on console.
23	*	23	*
24	* A system startup script should remove /var/run/console/console.lock	24	* A system startup script should remove /var/run/console/console.lock
25	* and everything in /var/run/console/	25	* and everything in /var/run/console/
Lines 560-566 Link Here
560	*/	560	*/
561	int fd;	561	int fd;
562	int count = 0;	562	int count = 0;
563	int err;	563	int err = PAM_SUCCESS;
564	int delete_consolelock = 0;	564	int delete_consolelock = 0;
565	const char username = NULL, user_prompt;	565	const char username = NULL, user_prompt;
566	char *lockfile = NULL;	566	char *lockfile = NULL;
Lines 605-611 Link Here
605	_pam_log(pamh, LOG_ERR, FALSE,	605	_pam_log(pamh, LOG_ERR, FALSE,
606	"\"impossible\" fstat error on %s", consolelock);	606	"\"impossible\" fstat error on %s", consolelock);
607	close(fd);	607	close(fd);
608	err = PAM_SESSION_ERR; goto return_error;	608	err = PAM_SESSION_ERR;
		609	goto decrement;
609	}	610	}
610	consoleuser = _do_malloc(st.st_size+1);	611	consoleuser = _do_malloc(st.st_size+1);
611	if (st.st_size) {	612	if (st.st_size) {
Lines 614-620 Link Here
614	"\"impossible\" read error on %s", consolelock);	615	"\"impossible\" read error on %s", consolelock);
615	err = PAM_SESSION_ERR;	616	err = PAM_SESSION_ERR;
616	close(fd);	617	close(fd);
617	goto return_error;	618	goto decrement;
618	}	619	}
619	consoleuser[st.st_size] = '\0';	620	consoleuser[st.st_size] = '\0';
620	}	621	}
Lines 627-649 Link Here
627	*/	628	*/
628	console_run_handlers(pamh, FALSE, username, tty);	629	console_run_handlers(pamh, FALSE, username, tty);
629	}	630	}
630	} else {
631	/* didn't open file */
632	err = PAM_SESSION_ERR;
633	goto return_error;
634	}	631	}
635	}	632	}
636		633
		634	decrement:
637	count = use_count(pamh, lockfile, -1, 1);	635	count = use_count(pamh, lockfile, -1, 1);
638	if (count < 1 && delete_consolelock) {	636	if (count < 1 && delete_consolelock) {
639	if (unlink(consolelock)) {	637	if (unlink(consolelock)) {
640	_pam_log(pamh, LOG_ERR, FALSE,	638	_pam_log(pamh, LOG_ERR, FALSE,
641	"\"impossible\" unlink error on %s", consolelock);	639	"\"impossible\" unlink error on %s", consolelock);
642	err = PAM_SESSION_ERR; goto return_error;	640	err = PAM_SESSION_ERR;
643	}	641	}
644	}	642	}
645		643
646	err = PAM_SUCCESS;
647	return_error:	644	return_error:
648	if (lockfile) free(lockfile);	645	if (lockfile) free(lockfile);
649	if (consoleuser) free (consoleuser);	646	if (consoleuser) free (consoleuser);