file/fat: add utime function

This emulates the traditional utime function from UNIX clones to allow
for manual updates of the modification timestamp on files and directories.

This should only prove useful for non-native targets as those usually
have a libc version of utime.

Change-Id: Iea8a1d328e78b92c400d3354ee80689c7cf53af8

1 files changed, 6 insertions, 0 deletions

diff --git a/firmware/libc/include/time.h b/firmware/libc/include/time.h
index 4796b8b083..217b454321 100644
--- a/firmware/libc/include/time.h
+++ b/firmware/libc/include/time.h
@@ -28,6 +28,12 @@ struct tm
 #if !defined(_TIME_T_DEFINED) && !defined(_TIME_T_DECLARED)
 typedef long time_t;
 
+struct utimbuf
+{
+    time_t actime;
+    time_t modtime;
+};
+
 /* this define below is used by the mingw headers to prevent duplicate
    typedefs */
 #define _TIME_T_DEFINED