php7-pecl-http: add a patch to fix a segfault during php startup

The extensions tries to register some string constants after quering
version strings from underlaying libcurl. However, depending on libcurl's
configuration these strings could also be NULL, which was not handled
properly.

An upstream pull request for this patch is waiting for review.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

lang/php7-pecl-http/Makefile

@@ -9,7 +9,7 @@ PECL_NAME:=pecl_http
 PECL_LONGNAME:=Extended HTTP Support
 
 PKG_VERSION:=3.1.0
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 PKG_MD5SUM:=e3de67b156e7d5f6c2e5eb1e2b5f0acceb7004f1260d68c9f8b2c0f9629aabf0
 
 PKG_NAME:=php7-pecl-http

lang/php7-pecl-http/patches/200-string_or_null_register.patch

@@ -0,0 +1,57 @@
+From ab5b4e3acd2b0379e5d8bc95a8d4f83ce5c91fb7 Mon Sep 17 00:00:00 2001
+From: Michael Heimpold <mhei@heimpold.de>
+Date: Sun, 4 Jun 2017 15:00:33 +0200
+Subject: [PATCH] Handle NULL strings gracefully during constant registration
+
+When libcurl is compiled not using e.g. libz or SSL, then a call to
+curl_version_info could return NULL in the corresponding fields of
+curl_version_info_data.
+
+Passing such NULL pointers down to REGISTER_NS_STRING_CONSTANT results
+in a segfault during php startup, so let's check for this special case
+and register a NULL constant in this case.
+
+Signed-off-by: Michael Heimpold <mhei@heimpold.de>
+---
+ src/php_http_client_curl.c | 16 ++++++++++++----
+ 1 file changed, 12 insertions(+), 4 deletions(-)
+
+diff --git a/src/php_http_client_curl.c b/src/php_http_client_curl.c
+index f286324..f07bb8f 100644
+--- a/src/php_http_client_curl.c
++++ b/src/php_http_client_curl.c
+@@ -2429,6 +2429,14 @@ php_http_client_ops_t *php_http_client_curl_get_ops(void)
+ 	return &php_http_client_curl_ops;
+ }
+ 
++#define REGISTER_NS_STRING_OR_NULL_CONSTANT(ns, name, str, flags)                              \
++		do {                                                                           \
++			if ((str) != NULL) {                                                   \
++				REGISTER_NS_STRING_CONSTANT(ns, name, str, flags);             \
++			} else {                                                               \
++				REGISTER_NS_NULL_CONSTANT(ns, name, flags);                    \
++			}                                                                      \
++		} while (0)
+ 
+ PHP_MINIT_FUNCTION(http_client_curl)
+ {
+@@ -2509,12 +2517,12 @@ PHP_MINIT_FUNCTION(http_client_curl)
+ 		REGISTER_NS_STRING_CONSTANT("http\\Client\\Curl", "VERSIONS", curl_version(), CONST_CS|CONST_PERSISTENT);
+ #if CURLVERSION_NOW >= 0
+ 		REGISTER_NS_STRING_CONSTANT("http\\Client\\Curl\\Versions", "CURL", (char *) info->version, CONST_CS|CONST_PERSISTENT);
+-		REGISTER_NS_STRING_CONSTANT("http\\Client\\Curl\\Versions", "SSL", (char *) info->ssl_version, CONST_CS|CONST_PERSISTENT);
+-		REGISTER_NS_STRING_CONSTANT("http\\Client\\Curl\\Versions", "LIBZ", (char *) info->libz_version, CONST_CS|CONST_PERSISTENT);
++		REGISTER_NS_STRING_OR_NULL_CONSTANT("http\\Client\\Curl\\Versions", "SSL", (char *) info->ssl_version, CONST_CS|CONST_PERSISTENT);
++		REGISTER_NS_STRING_OR_NULL_CONSTANT("http\\Client\\Curl\\Versions", "LIBZ", (char *) info->libz_version, CONST_CS|CONST_PERSISTENT);
+ # if CURLVERSION_NOW >= 1
+-		REGISTER_NS_STRING_CONSTANT("http\\Client\\Curl\\Versions", "ARES", (char *) info->ares, CONST_CS|CONST_PERSISTENT);
++		REGISTER_NS_STRING_OR_NULL_CONSTANT("http\\Client\\Curl\\Versions", "ARES", (char *) info->ares, CONST_CS|CONST_PERSISTENT);
+ #  if CURLVERSION_NOW >= 2
+-		REGISTER_NS_STRING_CONSTANT("http\\Client\\Curl\\Versions", "IDN", (char *) info->libidn, CONST_CS|CONST_PERSISTENT);
++		REGISTER_NS_STRING_OR_NULL_CONSTANT("http\\Client\\Curl\\Versions", "IDN", (char *) info->libidn, CONST_CS|CONST_PERSISTENT);
+ #  endif
+ # endif
+ #endif
+-- 
+2.7.4
+