FileSys::Chmod( FilePerm, Error * )

Modify the file mode bits of the file specified by the path protected FileSys member.

Virtual?	Yes
Class	`FileSys`
Arguments	`FilePerm perms`	permissions to change the file, either `FPM_RO` (read only) or `FPM_RW` (read/write)
	`Error *error`	returned error status
Returns	`void`

Notes

This method is called to make a client file writable (FPM_RW) when it is opened for edit, or to change it to read-only (FPM_RO) after a submit.

A FilePerm is an enum taking one of the following values:

Argument	Value	Meaning
`FPM_RO`	`0x00`	leave file read-only.
`FPM_RW`	`0x01`	allow read and write operations

Example

To use Chmod() to create a configuration file and set its permissions to read-only:

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FileSys *f = FileSys::Create( FST_ATEXT );
Error e;

f-&gt;Set( "c:\\configfile.txt" );
f-&gt;Chmod( FPM_RO, &amp;e );

To reimplement Chmod() under UNIX:

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void FileSysDemo::Chmod( FilePerm perms, Error *e )
{
    int bits = IsExec() ? PERM_0777 : PERM_0666;

    if ( perms == FPM_RO )
        bits &amp;= ~PERM_0222;

    if ( chmod( Name(), bits &amp; ~myumask ) &lt; 0 )
        e-&gt;Sys( "chmod", Name() );

    if ( DEBUG )
        printf( "Debug (Chmod): %s\n", Name() );
}