squid: Fix build with hardening

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Joe MacDonald <joe_macdonald@mentor.com>

meta-networking/recipes-daemons/squid/files/0001-tools.cc-fixed-unused-result-warning.patch

@@ -0,0 +1,36 @@
+From a78f2f0feda8f92cb59afe8236bd90726908768f Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sun, 25 Jun 2017 00:59:24 -0700
+Subject: [PATCH] tools.cc: fixed unused-result warning
+
+fix
+| ../../squid-3.5.26/src/tools.cc: In function 'void enter_suid()':
+| ../../squid-3.5.26/src/tools.cc:616:11: error: ignoring return value of 'int setuid(__uid_t)', declared with attribute warn_unused_result [-Werror=unused-result]
+|      setuid(0);
+|      ~~~~~~^~~
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+Upstream-Status: Submitted
+
+ src/tools.cc | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/tools.cc b/src/tools.cc
+index 8137a03..843e266 100644
+--- a/src/tools.cc
++++ b/src/tools.cc
+@@ -612,8 +612,8 @@ enter_suid(void)
+     if (setresuid((uid_t)-1, 0, (uid_t)-1) < 0)
+         debugs (21, 3, "enter_suid: setresuid failed: " << xstrerror ());
+ #else
+-
+-    setuid(0);
++    if (setuid(0) < 0)
++        debugs(50, DBG_IMPORTANT, "WARNING: no_suid: setuid(0): " << xstrerror());
+ #endif
+ #if HAVE_PRCTL && defined(PR_SET_DUMPABLE)
+     /* Set Linux DUMPABLE flag */
+-- 
+2.13.1
+

meta-networking/recipes-daemons/squid/squid_3.5.26.bb

@@ -24,6 +24,7 @@ SRC_URI = "http://www.squid-cache.org/Versions/v${MAJ_VER}/${MIN_VER}/${BPN}-${P
            file://0001-SquidNew-use-noexcept-instead-of-throw-for-C-11-comp.patch \
            file://0001-configure-Check-for-Wno-error-format-truncation-comp.patch \
            file://gcc7-fixes.patch \
+           file://0001-tools.cc-fixed-unused-result-warning.patch \
            "
 SRC_URI[md5sum] = "dc1830cd361e077814aa39bcc3691d8b"
 SRC_URI[sha256sum] = "41d8845863dcd026c856508cd1599d417c8947ffd96e86e24085f9893cb8b8c2"