From 036752dbbcb77494de9935ac459ea5cf0ea34b4b Mon Sep 17 00:00:00 2001
From: Michael Wallner <mike@php.net>
Date: Thu, 22 Nov 2018 17:25:48 +0100
Subject: [PATCH 1/1] paranoid push

---
 Makefile.frag       | 10 ++++++++++
 php_psi_posix.h.in  | 18 ++++++++++++++++++
 psi.d/arpa_inet.psi |  2 +-
 psi.d/netdb.psi     |  2 ++
 src/builtin.c       | 40 ++++++++++++++++++++++++++++++++++++++++
 src/builtin.h       |  4 ++++
 6 files changed, 75 insertions(+), 1 deletion(-)

diff --git a/Makefile.frag b/Makefile.frag
index 589785d..a9f6035 100644
--- a/Makefile.frag
+++ b/Makefile.frag
@@ -86,3 +86,13 @@ clean: psi-clean-headers
 ifneq ($(PSI_DEPS),)
 clean: psi-clean-depend
 endif
+
+.PHONY: psi-paranoid-backups
+psi-paranoid-backups:
+	-if test -z "$((DEST))"; then \
+		echo "Usage: make psi-paranoid-backups DEST=<repo to push to>"; \
+	else \
+		git ci -am flush; \
+		git push $DEST; \
+	fi
+
diff --git a/php_psi_posix.h.in b/php_psi_posix.h.in
index a0527c5..4f4acd3 100644
--- a/php_psi_posix.h.in
+++ b/php_psi_posix.h.in
@@ -56,6 +56,24 @@ static struct psi_func_redir {
 	const char *name;
 	psi_func_ptr func;
 } psi_func_redirs[] = {
+	/* inline byte swapping */
+#ifdef __APPLE__
+	{"_OSSwapInt16", psi_swap16},
+	{"_OSSwapInt32", psi_swap32},
+	{"_OSSwapInt64", psi_swap64}
+#elif defined(__FreeBSD__)
+	{"bswap16", psi_swap16}
+	{"bswap32", psi_swap32}
+	{"bswap64", psi_swap64}
+#elif defined(__OpenBSD__)
+	{"swap16", psi_swap16}
+	{"swap32", psi_swap32}
+	{"swap64", psi_swap64}
+#elif defined(__NetBSD__)
+	{"bswap16", psi_swap16}
+	{"bswap32", psi_swap32}
+	{"bswap64", psi_swap64}
+#endif
 	/* needed from libc_nonshared.a */
 	{"fstat", (psi_func_ptr) fstat},
 	{"fstatat", (psi_func_ptr) fstatat},
diff --git a/psi.d/arpa_inet.psi b/psi.d/arpa_inet.psi
index 6fdf0fb..b38fc3d 100644
--- a/psi.d/arpa_inet.psi
+++ b/psi.d/arpa_inet.psi
@@ -45,4 +45,4 @@ function psi\inet_pton(int $af, string $src, string &$dst) : int {
 	let dst = calloc(1, sizeof(struct sockaddr_storage));
 	return inet_pton(af, src, dst) as to_int(inet_pton);
 	set $dst = to_string(dst, sizeof(struct sockaddr_storage));
-}
\ No newline at end of file
+}
diff --git a/psi.d/netdb.psi b/psi.d/netdb.psi
index 7ce8427..71c66ff 100644
--- a/psi.d/netdb.psi
+++ b/psi.d/netdb.psi
@@ -1,4 +1,6 @@
+#ifdef linux
 lib "anl";
+#endif
 
 #include <netdb.h>
 
diff --git a/src/builtin.c b/src/builtin.c
index e4e2e9b..0eedec2 100644
--- a/src/builtin.c
+++ b/src/builtin.c
@@ -178,3 +178,43 @@ static bool COUNTER__(struct psi_cpp *cpp, struct psi_token *target,
 
 	return true;
 }
+
+#ifdef __APPLE__
+#include <libkern/OSByteOrder.h>
+# define bswap_16(u) _OSSwapInt16(u)
+# define bswap_32(u) _OSSwapInt32(u)
+# define bswap_64(u) _OSSwapInt64(u)
+#elif defined(__FreeBSD__)
+# include <sys/endian.h>
+# define bswap_16(u) bswap16(u)
+# define bswap_32(u) bswap32(u)
+# define bswap_64(u) bswap64(u)
+#elif defined(__OpenBSD__)
+# include <sys/types.h>
+# define bswap_16(u) swap16(u)
+# define bswap_32(u) swap32(u)
+# define bswap_64(u) swap64(u)
+#elif defined(__NetBSD__)
+# include <sys/types.h>
+# include <machine/bswap.h>
+# define bswap_16(u) bswap16(u)
+# define bswap_32(u) bswap32(u)
+# define bswap_64(u) bswap64(u)
+#else
+# include <byteswap.h>
+#endif
+
+uint16_t psi_swap16(uint16_t u)
+{
+	return bswap_16(u);
+}
+
+uint32_t psi_swap32(uint32_t u)
+{
+	return bswap_32(u);
+}
+
+uint64_t psi_swap64(uint64_t u)
+{
+	return bswap_64(u);
+}
diff --git a/src/builtin.h b/src/builtin.h
index 13b8c83..24b6965 100644
--- a/src/builtin.h
+++ b/src/builtin.h
@@ -39,4 +39,8 @@ struct psi_builtin {
 bool psi_builtin_exists(zend_string *name);
 struct psi_builtin *psi_builtin_get(zend_string *name);
 
+uint16_t psi_swap16(uint16_t u);
+uint32_t psi_swap32(uint32_t u);
+uint64_t psi_swap64(uint64_t u);
+
 #endif /* PSI_BUILTIN_H */
-- 
2.30.2