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C/C++ API Documentation | 2025.1

# FileSys::Stat()

Obtain information about the file specified by the `path` protected `FileSys` member.

Virtual? | Yes |
Class | `FileSys` |
Arguments | None |
Returns | `int` | 0 for failure, or status bits as defined below

The status bits have the following meanings:

Status | Meaning
--- | ---
`0` | failure
`FSF_EXISTS (0x01)` | file exists
`FSF_WRITEABLE (0x02)` | file is user-writable
`FSF_DIRECTORY (0x04)` | file is a directory
`FSF_SYMLINK (0x08)` | file is symlink
`FSF_SPECIAL (0x10)` | file is a special file (in the UNIX sense)
`FSF_EXECUTABLE (0x20)` | file is executable
`FSF_EMPTY (0x40)` | file is empty
`FSF_HIDDEN (0x80)` | file is invisible (hidden)

## Notes

The default implementation of `Stat()` is called to obtain file status every time a file is opened for read.

## Example

To use `Stat()` to verify the existence of `/usr/bin/p4`:

    FileSys *f = FileSys::Create( FST_BINARY );
    f->Set( "/usr/bin/p4" );
    int state = f->Stat();

    if ( state & FSF_EXISTS )
        printf( "File found\n" );

To reimplement `Stat()` to provide debugging output:

    int FileSysDemo::Stat()
    {
        int flags = 0;
        struct stat st;

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

        if ( stat( Name(), &st ) < 0 )
            return( flags );

        // Set internal flags

        flags |= FSF_EXISTS;

        if ( st.st_mode & S_IWUSR ) flags |= FSF_WRITEABLE;
        if ( st.st_mode & S_IXUSR ) flags |= FSF_EXECUTABLE;
        if ( S_ISDIR( st.st_mode ) ) flags |= FSF_DIRECTORY;
        if ( !S_ISREG( st.st_mode ) ) flags |= FSF_SPECIAL;
        if ( !st.st_size ) flags |= FSF_EMPTY;
        return flags;
    }

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