File bash-memmove.patch of Package bash.12495

Author: Bernhard M. Wiedemann <bwiedemann suse de>
Date: 2018-07-07

strcpy can cause corruption when working on overlapping strings
so we use memmove instead that handles this case correctly

Index: bash-4.4/support/man2html.c
===================================================================
--- bash-4.4.orig/support/man2html.c
+++ bash-4.4/support/man2html.c
@@ -1992,7 +1993,7 @@ unescape (char *c)
 	while (i < l && c[i]) {
 		if (c[i] == '\a') {
 			if (c[i+1])
-				strcpy(c + i, c + i + 1);	/* should be memmove */
+				memmove(c + i, c + i + 1, strlen(c + i));
 			else {
 				c[i] = '\0';
 				break;