From d0df9cd33768b02cf5327c9d625568d21ced0297 Mon Sep 17 00:00:00 2001
From: Michael R Sweet <michaelrsweet@gmail.com>
Date: Wed, 1 Nov 2017 12:15:35 -0400
Subject: Update lpadmin documentation and show a meaningful error message for
 interface scripts (Issue #5111)

---
 systemv/lpadmin.c | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

(limited to 'systemv')

diff --git a/systemv/lpadmin.c b/systemv/lpadmin.c
index c608c2d30..b36ea48c4 100644
--- a/systemv/lpadmin.c
+++ b/systemv/lpadmin.c
@@ -1,7 +1,7 @@
 /*
  * "lpadmin" command for CUPS.
  *
- * Copyright 2007-2016 by Apple Inc.
+ * Copyright 2007-2017 by Apple Inc.
  * Copyright 1997-2006 by Easy Software Products.
  *
  * These coded instructions, statements, and computer programs are the
@@ -218,6 +218,25 @@ main(int  argc,			/* I - Number of command-line arguments */
 
 		file = argv[i];
 	      }
+
+	      if (*opt == 'i')
+	      {
+	       /*
+	        * Check to see that the specified file is, in fact, a PPD...
+	        */
+
+                cups_file_t *fp = cupsFileOpen(file, "r");
+                char line[256];
+
+                if (!cupsFileGets(fp, line, sizeof(line)) || strncmp(line, "*PPD-Adobe", 10))
+                {
+                  _cupsLangPuts(stderr, _("lpadmin: System V interface scripts are no longer supported for security reasons."));
+                  cupsFileClose(fp);
+                  return (1);
+                }
+
+                cupsFileClose(fp);
+	      }
 	      break;
 
 	  case 'E' : /* Enable the printer/enable encryption */
-- 
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