Version française
Home     About     Download     Resources     Contact us    

This site is updated infrequently. For up-to-date information, please visit the new OCaml website at

Browse thread
Re: [Caml-list] using open_out_gen, output_string and close_out
[ Home ] [ Index: by date | by threads ]
[ Search: ]

[ Message by date: previous | next ] [ Message in thread: previous | next ] [ Thread: previous | next ]
Date: 2001-08-07 (06:34)
From: Johann Spies <jspies@m...>
Subject: Re: [Caml-list] using open_out_gen, output_string and close_out
"Jeremy Fincher" <> writes:

> I believe your permissions are wrong.  I can't tell you what
> algorithm to use to determine the permissions number, but I know it
> has to include some bits for the file type (plain file, socket,
> pipe, directory, etc.)
> When I want 0644 I use 33188.  That's all I can tell you.  I found
> that number by looking at the ST_MODE return value of the stat(2)
> call on a regular file that i knew was 0644 :)

I think the following illustrates that the permissions is are not the

# let l = open_out_gen [Open_creat; Open_append] 33188 "/tmp/xx";;
val l : out_channel = <abstr>
# let skryf = output_string l "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    val skryf : unit = ()
# close_out l;;
Uncaught exception: Sys_error "Bad file descriptor".

-rw-r--r--    1 js       js              0 Aug  7 08:27 xx

# let k = open_out_gen [Open_creat; Open_append] 0o644 "/tmp/yy";;
val k : out_channel = <abstr>
# output_string k "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    - : unit = ()
# close_out k;;
Uncaught exception: Sys_error "Bad file descriptor".

-rw-r--r--    1 js       js              0 Aug  7 08:29 yy

Johann Spies          Telefoon: 021-808 4036
Informasietegnologie, Universiteit van Stellenbosch

     "If ye be reproached for the name of Christ, happy are 
      ye; for the spirit of glory and of God resteth upon 
      you; on their part He is spoken evil of, but on your 
      part He is glorified."                 I Peter 4:14 
Bug reports:  FAQ:
To unsubscribe, mail  Archives: