From: Etienne CHAMPETIER <champetier.etienne@gmail.com>
Date: Mon, 30 Nov 2015 23:09:20 +0000 (+0000)
Subject: ujail: add O_CLOEXEC flag to open() call
X-Git-Url: http://git.archive.openwrt.org/?a=commitdiff_plain;h=7646217c0d1775bc95cceb14f5c975ac7d157f05;p=project%2Fprocd.git

ujail: add O_CLOEXEC flag to open() call

if we forget to close() in the future,
this prevent fd leak

Signed-off-by: Etienne CHAMPETIER <champetier.etienne@gmail.com>
---

diff --git a/jail/elf.c b/jail/elf.c
index b8f2cc5..7c6076a 100644
--- a/jail/elf.c
+++ b/jail/elf.c
@@ -81,7 +81,7 @@ int lib_open(char **fullpath, const char *file)
 
 	list_for_each_entry(p, &library_paths, list) {
 		snprintf(path, sizeof(path), "%s/%s", p->path, file);
-		fd = open(path, O_RDONLY);
+		fd = open(path, O_RDONLY|O_CLOEXEC);
 		if (fd >= 0) {
 			*fullpath = strdup(path);
 			break;
diff --git a/jail/fs.c b/jail/fs.c
index 7b7b820..f390180 100644
--- a/jail/fs.c
+++ b/jail/fs.c
@@ -116,7 +116,7 @@ int add_path_and_deps(const char *path, int readonly, int error, int lib)
 	if (path[0] == '/') {
 		if (avl_find(&mounts, path))
 			return 0;
-		fd = open(path, O_RDONLY);
+		fd = open(path, O_RDONLY|O_CLOEXEC);
 		if (fd == -1)
 			return error;
 		add_mount(path, readonly, error);