From dc44763e9eebe9c22450d0df5962d7c2abe93399 Mon Sep 17 00:00:00 2001
From: Yunshu Ouyang <61579667+yooyoo9@users.noreply.github.com>
Date: Tue, 8 Sep 2020 21:07:01 +0200
Subject: [PATCH] [Nginx] fixing startup crashes (#4425)

* fixing startup crashes

* Removed whitespaces
---
 projects/nginx/build.sh                    | 2 +-
 projects/nginx/fuzz/http_request_fuzzer.cc | 1 -
 projects/nginx/fuzz/wrappers.c             | 9 +++++++++
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/projects/nginx/build.sh b/projects/nginx/build.sh
index 341b0e5ac..fcfb70bac 100644
--- a/projects/nginx/build.sh
+++ b/projects/nginx/build.sh
@@ -24,7 +24,7 @@ rm -rf genfiles && mkdir genfiles && $SRC/LPM/external.protobuf/bin/protoc http_
 cd ../..
 
 auto/configure \
-    --with-ld-opt="-Wl,--wrap=listen -Wl,--wrap=setsockopt -Wl,--wrap=bind -Wl,--wrap=shutdown -Wl,--wrap=connect -Wl,--wrap=getpwnam -Wl,--wrap=getgrnam" \
+    --with-ld-opt="-Wl,--wrap=listen -Wl,--wrap=setsockopt -Wl,--wrap=bind -Wl,--wrap=shutdown -Wl,--wrap=connect -Wl,--wrap=getpwnam -Wl,--wrap=getgrnam -Wl,--wrap=chmod -Wl,--wrap=chown" \
     --with-http_v2_module
 make -f objs/Makefile fuzzers
 
diff --git a/projects/nginx/fuzz/http_request_fuzzer.cc b/projects/nginx/fuzz/http_request_fuzzer.cc
index 4cb8c008b..bed04d7d0 100644
--- a/projects/nginx/fuzz/http_request_fuzzer.cc
+++ b/projects/nginx/fuzz/http_request_fuzzer.cc
@@ -30,7 +30,6 @@ extern "C" {
 #include "libprotobuf-mutator/src/libfuzzer/libfuzzer_macro.h"
 
 static char configuration[] =
-"user root;\n"
 "error_log stderr emerg;\n"
 "events {\n"
 "    use epoll;\n"
diff --git a/projects/nginx/fuzz/wrappers.c b/projects/nginx/fuzz/wrappers.c
index a351c37a3..213912176 100644
--- a/projects/nginx/fuzz/wrappers.c
+++ b/projects/nginx/fuzz/wrappers.c
@@ -15,6 +15,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 #include <sys/socket.h>
 #include <sys/types.h>
+#include <sys/stat.h>
 #include <grp.h>
 #include <pwd.h>
 
@@ -35,6 +36,14 @@ int __wrap_setsockopt(int fd, int level, int optname, const void *optval,
   return 0;
 }
 
+int __wrap_chmod(const char *pathname, mode_t mode){
+  return 0;
+}
+
+int __wrap_chown(const char *pathname, uid_t owner, gid_t group){
+  return 0;
+}
+
 struct passwd *__wrap_getpwnam(const char *name){
   struct passwd *pwd = (struct passwd *) calloc(1, sizeof(struct passwd));
   pwd->pw_uid = 1;