diff -Nrup sash-3.7.orig/sash.c sash-3.7/sash.c
--- sash-3.7.orig/sash.c	2004-01-14 00:08:03.000000000 -0500
+++ sash-3.7/sash.c	2004-10-31 00:05:59.000000000 -0400
@@ -739,6 +739,10 @@ tryBuiltIn(const char * cmd)
 	while (*endCmd && !isBlank(*endCmd))
 		endCmd++;
 
+	/* FIXME: command line will segv with -c 12000bytes -solar */
+	if ((endCmd - cmd) >= sizeof(cmdName))
+		return FALSE;
+
 	memcpy(cmdName, cmd, endCmd - cmd);
 
 	cmdName[endCmd - cmd] = '\0';