X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fwidechar%2Flib_slk_wset.c;h=89275567557be5c6a3e24ec60c1da0bef9bb9c80;hp=646b5d9e2fa81b9b299629a8cd34f2b25cbfc2c9;hb=79185cda09da0a0eef36ab0daabe3b739a2757cb;hpb=55ccd2b959766810cf7db8d1c4462f338ce0afc8;ds=sidebyside

diff --git a/ncurses/widechar/lib_slk_wset.c b/ncurses/widechar/lib_slk_wset.c
index 646b5d9e..89275567 100644
--- a/ncurses/widechar/lib_slk_wset.c
+++ b/ncurses/widechar/lib_slk_wset.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 2003-2004,2005 Free Software Foundation, Inc.              *
+ * Copyright (c) 2003-2002,2011 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -40,7 +40,7 @@
 #include <wctype.h>
 #endif
 
-MODULE_ID("$Id: lib_slk_wset.c,v 1.11 2005/01/16 01:03:53 tom Exp $")
+MODULE_ID("$Id: lib_slk_wset.c,v 1.13 2011/10/22 15:52:20 tom Exp $")
 
 NCURSES_EXPORT(int)
 slk_wset(int i, const wchar_t *astr, int format)
@@ -53,19 +53,21 @@ slk_wset(int i, const wchar_t *astr, int format)
 
     T((T_CALLED("slk_wset(%d, %s, %d)"), i, _nc_viswbuf(astr), format));
 
-    init_mb(state);
-    str = astr;
-    if ((arglen = wcsrtombs(NULL, &str, 0, &state)) != (size_t) -1) {
-	if ((mystr = (char *) _nc_doalloc(0, arglen + 1)) != 0) {
-	    str = astr;
-	    if (wcsrtombs(mystr, &str, arglen, &state) != (size_t) -1) {
-		/* glibc documentation claims that the terminating L'\0'
-		 * is written, but it is not...
-		 */
-		mystr[arglen] = 0;
-		result = slk_set(i, mystr, format);
+    if (astr != 0) {
+	init_mb(state);
+	str = astr;
+	if ((arglen = wcsrtombs(NULL, &str, (size_t) 0, &state)) != (size_t) -1) {
+	    if ((mystr = (char *) _nc_doalloc(0, arglen + 1)) != 0) {
+		str = astr;
+		if (wcsrtombs(mystr, &str, arglen, &state) != (size_t) -1) {
+		    /* glibc documentation claims that the terminating L'\0'
+		     * is written, but it is not...
+		     */
+		    mystr[arglen] = 0;
+		    result = slk_set(i, mystr, format);
+		}
+		free(mystr);
 	    }
-	    free(mystr);
 	}
     }
     returnCode(result);