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https://github.com/gnosek/fcgiwrap/pull/51
From 0b04283bc0f33c8b9e7ec23e2e7fd779da5bda09 Mon Sep 17 00:00:00 2001
From: Rodrigo Osorio <rodrigo@osorio.me>
Date: Sat, 28 Mar 2020 18:17:11 +0100
Subject: [PATCH] Zero-out the sockaddr struct before using it
The sockaddr union struct must be zero-out
before usage at least for IPv6.
IEEE Std 1003.1, 2004 Edition says:
---
The sockaddr_in6 structure shall be set to zero by an
application prior to using it, since implementations
are free to have additional, implementation-defined
fields in sockaddr_in6.
---
fcgiwrap.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fcgiwrap.c b/fcgiwrap.c
index b44d8aa..2e0f44f 100644
--- a/fcgiwrap.c
+++ b/fcgiwrap.c
@@ -726,6 +726,8 @@ static int setup_socket(char *url) {
struct sockaddr_in6 sa_in6;
} sa;
+ memset(&sa, 0, sizeof(sa));
+
if (!strncmp(p, "unix:", sizeof("unix:") - 1)) {
p += sizeof("unix:") - 1;
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