puts.c.patch   [plain text]

--- puts.c.bsdnew	2009-11-11 13:33:14.000000000 -0800
+++ puts.c	2009-11-11 13:33:14.000000000 -0800
@@ -44,6 +44,9 @@ __FBSDID("$FreeBSD: src/lib/libc/stdio/p
 #include "libc_private.h"
 #include "local.h"
 
+// 3340719: __puts_null__ is used if string is NULL.  Shared by fputs.c
+__private_extern__ char const __puts_null__[] = "(null)";
+
 /*
  * Write the given string to stdout, appending a newline.
  */
@@ -52,12 +55,15 @@ puts(s)
 	char const *s;
 {
 	int retval;
-	size_t c = strlen(s);
+	size_t c;
 	struct __suio uio;
 	struct __siov iov[2];
 
+	// 3340719: __puts_null__ is used if s is NULL
+	if(s == NULL)
+		s = __puts_null__;
 	iov[0].iov_base = (void *)s;
-	iov[0].iov_len = c;
+	iov[0].iov_len = c = strlen(s);
 	iov[1].iov_base = "\n";
 	iov[1].iov_len = 1;
 	uio.uio_resid = c + 1;