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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>gfs_chmod</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"></HEAD
><BODY
CLASS="REFENTRY"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><H1
><A
NAME="GFS-CHMOD.3"
></A
>gfs_chmod</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="NAME"
></A
><H2
>Name</H2
>gfs_chmod -- change permissions of a file</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="SYNOPSIS"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><P
></P
><A
NAME="AEN12"
></A
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include <gfarm/gfarm.h></PRE
></TD
></TR
></TABLE
><P
><CODE
><CODE
CLASS="FUNCDEF"
><TT
CLASS="FUNCTION"
><SPAN
CLASS="RETURNVALUE"
>char *</SPAN
>gfs_chmod</TT
></CODE
>(char * <TT
CLASS="PARAMETER"
><I
>gfarm_url</I
></TT
>, mode_t <TT
CLASS="PARAMETER"
><I
>mode</I
></TT
>);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="DESCRIPTION"
></A
><H2
>DESCRIPTION</H2
><P
><TT
CLASS="FUNCTION"
>gfs_chmod()</TT
> changes the mode of the file
given by <TT
CLASS="PARAMETER"
><I
>gfarm_url</I
></TT
>. Permission bit masks of
<TT
CLASS="PARAMETER"
><I
>mode</I
></TT
> are similar to ones of mode parameter to
<TT
CLASS="FUNCTION"
>chmod(2)</TT
>, though only the least 9 bit are
effective.</P
><P
>An executable file cannot be changed to a non-executable file
and vice versa, unless the number of fragment of the file is only one.
In detail, a file has multiple fragments with any execution bit should not
be changed to that with no execution bit. It is necessary to have
at least one execution bit. Similarly, a file has multiple fragments
with no execution bit should not be changed to that with any execution bit.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="RETURN-VALUES"
></A
><H2
>RETURN VALUES</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><CODE
CLASS="CONSTANT"
>NULL</CODE
></DT
><DD
><P
>The function terminated successfully.</P
></DD
><DT
><CODE
CLASS="CONSTANT"
>GFARM_ERR_NO_MEMORY</CODE
></DT
><DD
><P
>Insufficient memory was available.</P
></DD
><DT
><CODE
CLASS="CONSTANT"
>GFARM_ERR_AUTHENTICATION</CODE
></DT
><DD
><P
>User authentication failed when connecting to gfmd(8) or gfsd(8).</P
></DD
><DT
><CODE
CLASS="CONSTANT"
>GFARM_ERR_PERMISSION_DENIED</CODE
></DT
><DD
><P
>The parent directory of <TT
CLASS="PARAMETER"
><I
>gfarm_url</I
></TT
>
did not allow write permission.</P
></DD
><DT
><CODE
CLASS="CONSTANT"
>GFARM_ERR_OPERATION_NOT_PERMITTED</CODE
></DT
><DD
><P
>The effective UID does not match the owner of the file, and is not
zero. Or an attempt was made to change an executable file with more than
one fragment to a non-executable file, or vice versa.</P
></DD
><DT
><CODE
CLASS="CONSTANT"
>GFARM_ERR_NO_SUCH_OBJECT</CODE
></DT
><DD
><P
>The file does not exist.</P
></DD
><DT
><CODE
CLASS="CONSTANT"
>GFARM_ERR_NOT_A_DIRECTORY</CODE
></DT
><DD
><P
>A component of the path prefix is not a directory.</P
></DD
><DT
>Others</DT
><DD
><P
>An error except the above occurred. The reason is shown by its
pointed strings.</P
></DD
></DL
></DIV
></DIV
></BODY
></HTML
>
|
