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getmode (3)
  • >> getmode (3) ( FreeBSD man: Библиотечные вызовы )

  • BSD mandoc
     

    NAME

    
    
    getmode
    
     
    setmode
    
     - modify mode bits
    
     
    

    LIBRARY

    Lb libc
    
     
    

    SYNOPSIS

       #include <unistd.h>
    mode_t getmode (const void *set mode_t mode);
    void * setmode (const char *mode_str);
     

    DESCRIPTION

    The getmode ();
    function returns a copy of the file permission bits Fa mode as altered by the values pointed to by Fa set . While only the mode bits are altered, other parts of the file mode may be examined.

    The setmode ();
    function takes an absolute (octal) or symbolic value, as described in chmod(1), as an argument and returns a pointer to mode values to be supplied to getmode (.);
    Because some of the symbolic values are relative to the file creation mask, setmode ();
    may call umask(2). If this occurs, the file creation mask will be restored before setmode ();
    returns. If the calling program changes the value of its file creation mask after calling setmode (,);
    setmode ();
    must be called again if getmode ();
    is to modify future file modes correctly.

    If the mode passed to setmode ();
    is invalid or if memory cannot be allocated for the return value, setmode ();
    returns NULL

    The value returned from setmode ();
    is obtained from malloc ();
    and should be returned to the system with free ();
    when the program is done with it, generally after a call to getmode (.);
     

    ERRORS

    The setmode ();
    function may fail and set errno for any of the errors specified for the library routine malloc(3).  

    SEE ALSO

    chmod(1), stat(2), umask(2), malloc(3)  

    HISTORY

    The getmode ();
    and setmode ();
    functions first appeared in BSD 4.4


     

    Index

    NAME
    LIBRARY
    SYNOPSIS
    DESCRIPTION
    ERRORS
    SEE ALSO
    HISTORY


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