From 26ee817a0e5a2bed4994fd4efc13e7f5106ca55c Mon Sep 17 00:00:00 2001
From: Ben Fuhrmannek
Date: Sat, 7 Aug 2021 22:33:21 +0200
Subject: PHP7 compatibility

---
 src/config.m4           |  2 +-
 src/php_snuffleupagus.h |  1 +
 src/sp_php_compat.c     | 22 ++++++++++++++++++++++
 src/sp_php_compat.h     | 12 ++++++++++++
 4 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 src/sp_php_compat.c
 create mode 100644 src/sp_php_compat.h

diff --git a/src/config.m4 b/src/config.m4
index 1410565..9778820 100644
--- a/src/config.m4
+++ b/src/config.m4
@@ -7,7 +7,7 @@ sources="$sources sp_disabled_functions.c sp_execute.c sp_upload_validation.c"
 sources="$sources sp_cookie_encryption.c sp_network_utils.c tweetnacl.c"
 sources="$sources sp_config_keywords.c sp_var_parser.c sp_var_value.c sp_tree.c"
 sources="$sources sp_pcre_compat.c sp_crypt.c sp_session.c sp_sloppy.c sp_wrapper.c"
-sources="$sources sp_ini.c"
+sources="$sources sp_ini.c sp_php_compat.c"
 
 PHP_ARG_ENABLE(snuffleupagus, whether to enable snuffleupagus support,
 [  --enable-snuffleupagus           Enable snuffleupagus support])
diff --git a/src/php_snuffleupagus.h b/src/php_snuffleupagus.h
index be4d306..928095d 100644
--- a/src/php_snuffleupagus.h
+++ b/src/php_snuffleupagus.h
@@ -65,6 +65,7 @@ typedef void (*zif_handler)(INTERNAL_FUNCTION_PARAMETERS);
 #define SP_CONFIG_INVALID 0
 #define SP_CONFIG_NONE -1
 
+#include "sp_php_compat.h"
 #include "sp_pcre_compat.h"
 #include "sp_list.h"
 #include "sp_tree.h"
diff --git a/src/sp_php_compat.c b/src/sp_php_compat.c
new file mode 100644
index 0000000..933acd8
--- /dev/null
+++ b/src/sp_php_compat.c
@@ -0,0 +1,22 @@
+#include "php_snuffleupagus.h"
+
+#if PHP_VERSION_ID < 80000
+
+// zend_string_concat2 taken from PHP 8.0.9 zend_string.c
+// TODO: license clarification
+
+ZEND_API zend_string *zend_string_concat2(
+		const char *str1, size_t str1_len,
+		const char *str2, size_t str2_len)
+{
+	size_t len = str1_len + str2_len;
+	zend_string *res = zend_string_alloc(len, 0);
+
+	memcpy(ZSTR_VAL(res), str1, str1_len);
+	memcpy(ZSTR_VAL(res) + str1_len, str2, str2_len);
+	ZSTR_VAL(res)[len] = '\0';
+
+	return res;
+}
+
+#endif
diff --git a/src/sp_php_compat.h b/src/sp_php_compat.h
new file mode 100644
index 0000000..380abe4
--- /dev/null
+++ b/src/sp_php_compat.h
@@ -0,0 +1,12 @@
+#if PHP_VERSION_ID < 80000
+ZEND_API zend_string *zend_string_concat2(
+    const char *str1, size_t str1_len,
+    const char *str2, size_t str2_len);
+
+#define ZEND_HASH_REVERSE_FOREACH_KEY_PTR(ht, _h, _key, _ptr) \
+    ZEND_HASH_REVERSE_FOREACH(ht, 0); \
+    _h = _p->h; \
+    _key = _p->key; \
+    _ptr = Z_PTR_P(_z);
+
+#endif
\ No newline at end of file
-- 
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