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| author | Ahmed Omar <[email protected]> | 2011-11-01 16:12:36 +0100 |
|---|---|---|
| committer | Henrik Nord <[email protected]> | 2011-11-01 16:24:02 +0100 |
| commit | cddc88dc10df2af9c248fdfa52f104d060430f6d (patch) | |
| tree | 524269ea73d90d49f074816c1cd425b1f61f5f27 /lib/kernel/src/file.erl | |
| parent | 9a6ad15ba103ec7aee2da66f59e371bd863f410c (diff) | |
| download | otp-cddc88dc10df2af9c248fdfa52f104d060430f6d.tar.gz otp-cddc88dc10df2af9c248fdfa52f104d060430f6d.tar.bz2 otp-cddc88dc10df2af9c248fdfa52f104d060430f6d.zip | |
Fix a crash when file:change_time/2,3 are called with invalid dates
Calling file:change_time/2,3 with an invalid date tuple
(e.g file:change_time("file.txt", {undefined, undefined}))
will cause file_server_2 to crash.
error_logger will shutdown and the whole VM will stop.
Change behavior to validate given dates on system boundaries.
(i.e before issuing a server call).
Diffstat (limited to 'lib/kernel/src/file.erl')
| -rw-r--r-- | lib/kernel/src/file.erl | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl index 706c60caaf..7b74823c28 100644 --- a/lib/kernel/src/file.erl +++ b/lib/kernel/src/file.erl @@ -1100,8 +1100,9 @@ change_group(Name, GroupId) Mtime :: date_time(), Reason :: posix() | badarg. -change_time(Name, Time) - when is_tuple(Time) -> +change_time(Name, {{Y, M, D}, {H, Min, Sec}}=Time) + when is_integer(Y), is_integer(M), is_integer(D), + is_integer(H), is_integer(Min), is_integer(Sec)-> write_file_info(Name, #file_info{mtime=Time}). -spec change_time(Filename, Atime, Mtime) -> ok | {error, Reason} when @@ -1110,8 +1111,12 @@ change_time(Name, Time) Mtime :: date_time(), Reason :: posix() | badarg. -change_time(Name, Atime, Mtime) - when is_tuple(Atime), is_tuple(Mtime) -> +change_time(Name, {{AY, AM, AD}, {AH, AMin, ASec}}=Atime, + {{MY, MM, MD}, {MH, MMin, MSec}}=Mtime) + when is_integer(AY), is_integer(AM), is_integer(AD), + is_integer(AH), is_integer(AMin), is_integer(ASec), + is_integer(MY), is_integer(MM), is_integer(MD), + is_integer(MH), is_integer(MMin), is_integer(MSec)-> write_file_info(Name, #file_info{atime=Atime, mtime=Mtime}). %%%----------------------------------------------------------------- |