From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Wed, 18 Oct 2017 17:48:57 +0000 (+0200)
Subject: utils: add lxc_make_tmpfile()
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d60663509de95f71ce11ff0a33e7585ad05e426d;p=thirdparty%2Flxc.git

utils: add lxc_make_tmpfile()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---

diff --git a/src/lxc/utils.c b/src/lxc/utils.c
index e6a44a516..501f74d3a 100644
--- a/src/lxc/utils.c
+++ b/src/lxc/utils.c
@@ -2400,3 +2400,23 @@ bool lxc_nic_exists(char *nic)
 
 	return true;
 }
+
+int lxc_make_tmpfile(char *template, bool rm)
+{
+	int fd, ret;
+
+	fd = mkstemp(template);
+	if (fd < 0)
+		return -1;
+
+	if (!rm)
+		return fd;
+
+	ret = unlink(template);
+	if (ret < 0) {
+		close(fd);
+		return -1;
+	}
+
+	return fd;
+}
diff --git a/src/lxc/utils.h b/src/lxc/utils.h
index 4aa21cdd4..27428e157 100644
--- a/src/lxc/utils.h
+++ b/src/lxc/utils.h
@@ -466,5 +466,6 @@ typedef __typeof__(((struct statfs *)NULL)->f_type) fs_type_magic;
 extern bool has_fs_type(const char *path, fs_type_magic magic_val);
 extern bool is_fs_type(const struct statfs *fs, fs_type_magic magic_val);
 extern bool lxc_nic_exists(char *nic);
+extern int lxc_make_tmpfile(char *template, bool rm);
 
 #endif /* __LXC_UTILS_H */