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diff -up Linux-PAM-1.1.8/modules/pam_limits/pam_limits.c.check-process Linux-PAM-1.1.8/modules/pam_limits/pam_limits.c
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--- Linux-PAM-1.1.8/modules/pam_limits/pam_limits.c.check-process 2013-06-18 16:11:21.000000000 +0200
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+++ Linux-PAM-1.1.8/modules/pam_limits/pam_limits.c 2014-09-10 16:39:36.263256066 +0200
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@@ -27,6 +27,7 @@
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#include <errno.h>
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#include <syslog.h>
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#include <stdarg.h>
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+#include <signal.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/resource.h>
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@@ -269,16 +270,27 @@ check_logins (pam_handle_t *pamh, const
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continue;
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}
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if (!pl->flag_numsyslogins) {
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+ char user[sizeof(ut->UT_USER) + 1];
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+ user[0] = '\0';
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+ strncat(user, ut->UT_USER, sizeof(ut->UT_USER));
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+
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if (((pl->login_limit_def == LIMITS_DEF_USER)
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|| (pl->login_limit_def == LIMITS_DEF_GROUP)
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|| (pl->login_limit_def == LIMITS_DEF_DEFAULT))
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- && strncmp(name, ut->UT_USER, sizeof(ut->UT_USER)) != 0) {
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+ && strcmp(name, user) != 0) {
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continue;
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}
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if ((pl->login_limit_def == LIMITS_DEF_ALLGROUP)
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- && !pam_modutil_user_in_group_nam_nam(pamh, ut->UT_USER, pl->login_group)) {
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+ && !pam_modutil_user_in_group_nam_nam(pamh, user, pl->login_group)) {
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continue;
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}
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+ if (kill(ut->ut_pid, 0) == -1 && errno == ESRCH) {
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+ /* process does not exist anymore */
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+ pam_syslog(pamh, LOG_WARNING,
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+ "Stale utmp entry (pid %d) for '%s' ignored",
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+ ut->ut_pid, user);
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+ continue;
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+ }
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}
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if (++count > limit) {
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break;
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