[Buildroot] [PATCH 1/1] package/shadowsocks-libev: fix maybe-uninitialized errors

[Fabrice Fontaine]

Fix the following build failure:

local.c: In function 'create_and_bind':
local.c:218:12: error: 'listen_sock' may be used uninitialized in this function [-Werror=maybe-uninitialized]
  218 |     return listen_sock;
      |            ^~~~~~~~~~~

Fixes:
 - http://autobuild.buildroot.org/results/27471a878ff52a972ac087d534e44fb0c50808f6

Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
---
 .../0002-fix-maybe-uninitialized-errors.patch | 93 +++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 package/shadowsocks-libev/0002-fix-maybe-uninitialized-errors.patch

diff --git a/package/shadowsocks-libev/0002-fix-maybe-uninitialized-errors.patch b/package/shadowsocks-libev/0002-fix-maybe-uninitialized-errors.patch
new file mode 100644
index 0000000000..5275323e65
--- /dev/null
+++ b/package/shadowsocks-libev/0002-fix-maybe-uninitialized-errors.patch
@@ -0,0 +1,93 @@
+From 0c23224e926463b1097414979367655a27fa6d60 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice at gmail.com>
+Date: Thu, 7 Apr 2022 18:27:58 +0200
+Subject: [PATCH] fix maybe-uninitialized errors
+
+Set {listen,server}_sock to -1 when needed as already done in
+src/manager.c by commit ecf1fcc84594b09ed2d61e3677cd8e62bd897ccb to
+avoid the following build failure:
+
+local.c: In function 'create_and_bind':
+local.c:218:12: error: 'listen_sock' may be used uninitialized in this function [-Werror=maybe-uninitialized]
+  218 |     return listen_sock;
+      |            ^~~~~~~~~~~
+
+Fixes:
+ - http://autobuild.buildroot.org/results/27471a878ff52a972ac087d534e44fb0c50808f6
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
+[Retrieved from:
+https://github.com/shadowsocks/shadowsocks-libev/commit/0c23224e926463b1097414979367655a27fa6d60]
+---
+ src/local.c    | 2 +-
+ src/redir.c    | 2 +-
+ src/server.c   | 2 +-
+ src/tunnel.c   | 2 +-
+ src/udprelay.c | 2 +-
+ 5 files changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/src/local.c b/src/local.c
+index b1ab040bb..47d634ce5 100644
+--- a/src/local.c
++++ b/src/local.c
+@@ -168,7 +168,7 @@ create_and_bind(const char *addr, const char *port)
+ {
+     struct addrinfo hints;
+     struct addrinfo *result, *rp;
+-    int s, listen_sock;
++    int s, listen_sock = -1;
+ 
+     memset(&hints, 0, sizeof(struct addrinfo));
+     hints.ai_family   = AF_UNSPEC;   /* Return IPv4 and IPv6 choices */
+diff --git a/src/redir.c b/src/redir.c
+index 4a5a489f0..e60bd4870 100644
+--- a/src/redir.c
++++ b/src/redir.c
+@@ -147,7 +147,7 @@ create_and_bind(const char *addr, const char *port)
+ {
+     struct addrinfo hints;
+     struct addrinfo *result, *rp;
+-    int s, listen_sock;
++    int s, listen_sock = -1;
+ 
+     memset(&hints, 0, sizeof(struct addrinfo));
+     hints.ai_family   = AF_UNSPEC;   /* Return IPv4 and IPv6 choices */
+diff --git a/src/server.c b/src/server.c
+index e9cdc2619..073e38b22 100644
+--- a/src/server.c
++++ b/src/server.c
+@@ -550,7 +550,7 @@ create_and_bind(const char *host, const char *port, int mptcp)
+ {
+     struct addrinfo hints;
+     struct addrinfo *result, *rp, *ipv4v6bindall;
+-    int s, listen_sock;
++    int s, listen_sock = -1;
+ 
+     memset(&hints, 0, sizeof(struct addrinfo));
+     hints.ai_family   = AF_UNSPEC;               /* Return IPv4 and IPv6 choices */
+diff --git a/src/tunnel.c b/src/tunnel.c
+index e0886bdb9..6641fe62a 100644
+--- a/src/tunnel.c
++++ b/src/tunnel.c
+@@ -129,7 +129,7 @@ create_and_bind(const char *addr, const char *port)
+ {
+     struct addrinfo hints;
+     struct addrinfo *result, *rp;
+-    int s, listen_sock;
++    int s, listen_sock = -1;
+ 
+     memset(&hints, 0, sizeof(struct addrinfo));
+     hints.ai_family   = AF_UNSPEC;   /* Return IPv4 and IPv6 choices */
+diff --git a/src/udprelay.c b/src/udprelay.c
+index 23a042497..580ad4bd8 100644
+--- a/src/udprelay.c
++++ b/src/udprelay.c
+@@ -446,7 +446,7 @@ create_server_socket(const char *host, const char *port)
+ {
+     struct addrinfo hints;
+     struct addrinfo *result, *rp, *ipv4v6bindall;
+-    int s, server_sock;
++    int s, server_sock = -1;
+ 
+     memset(&hints, 0, sizeof(struct addrinfo));
+     hints.ai_family   = AF_UNSPEC;               /* Return IPv4 and IPv6 choices */
-- 
2.35.1