2008-04-08  Tomas Mraz <t8m@centrum.cz>

        * modules/pam_xauth/pam_xauth.c(run_coprocess): Avoid multiple
        calls to sysconf() (based on patch by Sami Farin).

--- Linux-PAM-1.0/modules/pam_xauth/pam_xauth.c	2007-10-01 11:41:32.000000000 +0200
+++ Linux-PAM/modules/pam_xauth/pam_xauth.c	2008-06-22 09:47:33.000000000 +0200
@@ -118,6 +118,7 @@
 		size_t j;
 		char *args[10];
 		const char *tmp;
+		int maxopened;
 		/* Drop privileges. */
 		setgid(gid);
 		setgroups(0, NULL);
@@ -129,7 +130,8 @@
 		 * descriptors. */
 		dup2(ipipe[0], STDIN_FILENO);
 		dup2(opipe[1], STDOUT_FILENO);
-		for (i = 0; i < sysconf(_SC_OPEN_MAX); i++) {
+		maxopened = (int)sysconf(_SC_OPEN_MAX);
+		for (i = 0; i < maxopened; i++) {
 			if ((i != STDIN_FILENO) && (i != STDOUT_FILENO)) {
 				close(i);
 			}