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-rw-r--r--src/basic/path-util.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/basic/path-util.c b/src/basic/path-util.c
index 0f5b20cf05..fd38f51c4c 100644
--- a/src/basic/path-util.c
+++ b/src/basic/path-util.c
@@ -354,6 +354,16 @@ char* path_startswith(const char *path, const char *prefix) {
assert(path);
assert(prefix);
+ /* Returns a pointer to the start of the first component after the parts matched by
+ * the prefix, iff
+ * - both paths are absolute or both paths are relative,
+ * and
+ * - each component in prefix in turn matches a component in path at the same position.
+ * An empty string will be returned when the prefix and path are equivalent.
+ *
+ * Returns NULL otherwise.
+ */
+
if ((path[0] == '/') != (prefix[0] == '/'))
return NULL;