From: Michihiro NAKAJIMA <ggcueroad@gmail.com>
Date: Mon, 27 Feb 2012 10:26:36 +0000 (+0900)
Subject: Avoid the error which Clang Static Analyzer says "Null pointer argument in call to... 
X-Git-Tag: v3.0.4~2^2~39
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=27235218e332f5ee838794f165de14645adca72c;p=thirdparty%2Flibarchive.git

Avoid the error which Clang Static Analyzer says "Null pointer argument in call to string length function" but actually it will not happen.
---

diff --git a/libarchive/archive_read_support_format_tar.c b/libarchive/archive_read_support_format_tar.c
index b044fc978..4538331f3 100644
--- a/libarchive/archive_read_support_format_tar.c
+++ b/libarchive/archive_read_support_format_tar.c
@@ -1665,6 +1665,9 @@ pax_attribute(struct archive_read *a, struct tar *tar,
 	long n;
 	int err = ARCHIVE_OK, r;
 
+	if (value == NULL)
+		value = "";	/* Disable compiler warning; do not pass
+				 * NULL pointer to strlen().  */
 	switch (key[0]) {
 	case 'G':
 		/* GNU "0.0" sparse pax format. */