--- procps-3.1.15/ps/ps.1.selinux	2003-12-23 20:59:47.000000000 -0500
+++ procps-3.1.15/ps/ps.1	2004-01-21 13:12:33.000000000 -0500
@@ -96,6 +96,7 @@
 s            display signal format
 u            display user-oriented format
 v            display virtual memory format
+-Z           display security context format (NSA SELinux, etc.)
 --format     user-defined format
 --context    display security context format (NSA SELinux, etc.)
 
--- procps-3.2.1/ps/parser.c.orig	2004-03-27 04:52:01.000000000 +0100
+++ procps-3.2.1/ps/parser.c	2004-03-28 22:01:05.542682592 +0200
@@ -224,7 +224,7 @@
   flagptr = ps_argv[thisarg];
   while(*++flagptr){
     /* Find any excuse to ignore stupid Unix98 misfeatures. */
-    if(!strchr("aAdefgGlnoptuU", *flagptr)) not_pure_unix = 1;
+    if(!strchr("aAdefgGlnoptuUzZ", *flagptr)) not_pure_unix = 1;
     switch(*flagptr){
     case 'A':
       trace("-A selects all processes.\n");
@@ -314,12 +314,10 @@
       exclusive("-V");
       display_version();
       exit(0);
-#if 0
     case 'Z':     /* full Mandatory Access Control level info */
       trace("-Z shows full MAC info\n");
-      return "Don't understand MAC on Linux.";
+      format_flags |= FF_Fc;
       break;
-#endif
     case 'a':
       trace("-a select all with a tty, but omit session leaders.\n");
       simple_select |= SS_U_a;
@@ -442,12 +440,10 @@
       trace("-y Print lnone info in UID/USER column or do Sun -l hack.\n");
       format_modifiers |= FM_y;
       break;
-#if 0
     case 'z':     /* alias of Mandatory Access Control level info */
-      trace("-z shows aliased MAC info\n");
-      return "Don't understand MAC on Linux.";
+      trace("-Z shows full MAC info\n");
+      format_flags |= FF_Fc;
       break;
-#endif
     case '-':
       return "Embedded '-' among SysV options makes no sense.";
       break;
@@ -567,10 +563,17 @@
       trace("X Old Linux i386 register format\n");
       format_flags |= FF_LX;
       break;
+#ifdef __linux__
+    case 'Z':
+      trace("SElinux Security Context format\n");
+      format_flags |= FF_Fc;
+      break;
+#else
     case 'Z':  /* FreeBSD does MAC like SGI's Irix does it */
       trace("Z Print security label for Mandatory Access Control.\n");
       format_modifiers |= FM_M;
       break;
+#endif
     case 'a':
       trace("a Select all w/tty, including other users\n");
       simple_select |= SS_B_a;