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-rw-r--r--src/common/compat.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/common/compat.c b/src/common/compat.c
index 69eb0643d0..391f175c42 100644
--- a/src/common/compat.c
+++ b/src/common/compat.c
@@ -1746,6 +1746,15 @@ get_user_homedir(const char *username)
* actually examine the filesystem; does a purely syntactic modification.
*
* The parent of the root director is considered to be iteself.
+ *
+ * Path separators are the forward slash (/) everywhere and additionally
+ * the backslash (\) on Win32.
+ *
+ * Cuts off any number of trailing path separators but otherwise ignores
+ * them for purposes of finding the parent directory.
+ *
+ * Returns 0 if a parent directory was successfully found, -1 otherwise (fname
+ * did not have any path separators or only had them ad the end).
* */
int
get_parent_directory(char *fname)