From: Sungbae Yoo <sungbae.yoo@samsung.com>
Date: Thu, 27 Jul 2017 05:15:21 +0000 (+0900)
Subject: Add readlink method in filesystem API
X-Git-Tag: submit/tizen/20170727.084517~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e7cbed1000c38adf83d81fe45cf8d8320e7c8374;p=platform%2Fcore%2Fsecurity%2Fklay.git

Add readlink method in filesystem API

Signed-off-by: Sungbae Yoo <sungbae.yoo@samsung.com>
Change-Id: I86dda70ea0201a0a2f4ec4b0bfd58a5af86e9ae0
---

diff --git a/include/klay/filesystem.h b/include/klay/filesystem.h
index 5b5282a..3c62f04 100644
--- a/include/klay/filesystem.h
+++ b/include/klay/filesystem.h
@@ -112,6 +112,8 @@ public:
 	void chown(uid_t uid, gid_t gid, bool recursive = false);
 	void chmod(mode_t mode, bool recursive = false);
 
+	const std::string readlink() const;
+
 	const std::string& getPath() const
 	{
 		return path;
diff --git a/src/filesystem.cpp b/src/filesystem.cpp
index 7becd1d..5fb0f19 100644
--- a/src/filesystem.cpp
+++ b/src/filesystem.cpp
@@ -381,6 +381,15 @@ void File::chmod(mode_t mode, bool recursive)
 	}
 }
 
+const std::string File::readlink() const
+{
+	char buf[PATH_MAX];
+	if (::readlink(path.c_str(), buf, PATH_MAX) == -1) {
+		throw runtime::Exception(runtime::GetSystemErrorMessage());
+	}
+	return buf;
+}
+
 void File::lock() const
 {
 	if (::flock(descriptor, LOCK_EX) == -1) {