From e9524f1b95298966b449665318d15af75f40a882 Mon Sep 17 00:00:00 2001
From: twinaphex <libretro@gmail.com>
Date: Sat, 18 Feb 2017 02:16:40 +0100
Subject: [PATCH] Add filestream_get_ext

---
 libretro-common/include/streams/file_stream.h |  2 ++
 libretro-common/streams/file_stream.c         | 13 +++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/libretro-common/include/streams/file_stream.h b/libretro-common/include/streams/file_stream.h
index 4951d32a23..5e4294effa 100644
--- a/libretro-common/include/streams/file_stream.h
+++ b/libretro-common/include/streams/file_stream.h
@@ -47,6 +47,8 @@ enum
    RFILE_HINT_MMAP       = 1<<9  /* requires RFILE_MODE_READ */
 };
 
+const char *filestream_get_ext(RFILE *stream);
+
 RFILE *filestream_open(const char *path, unsigned mode, ssize_t len);
 
 ssize_t filestream_seek(RFILE *stream, ssize_t offset, int whence);
diff --git a/libretro-common/streams/file_stream.c b/libretro-common/streams/file_stream.c
index dd3e7ae549..b717f04880 100644
--- a/libretro-common/streams/file_stream.c
+++ b/libretro-common/streams/file_stream.c
@@ -68,6 +68,7 @@
 struct RFILE
 {
    unsigned hints;
+   char *ext;
 #if defined(PSP)
    SceUID fd;
 #else
@@ -102,6 +103,13 @@ int filestream_get_fd(RFILE *stream)
    return stream->fd;
 }
 
+const char *filestream_get_ext(RFILE *stream)
+{
+   if (!stream)
+      return NULL;
+   return stream->ext;
+}
+
 RFILE *filestream_open(const char *path, unsigned mode, ssize_t len)
 {
    int            flags = 0;
@@ -236,6 +244,11 @@ RFILE *filestream_open(const char *path, unsigned mode, ssize_t len)
       goto error;
 #endif
 
+   {
+      const char *ld = (const char*)strrchr(path, '.');
+      stream->ext    = strdup(ld ? ld + 1 : "");
+   }
+
    return stream;
 
 error: