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setegid (3)
  • setegid (2) ( Solaris man: Системные вызовы )
  • setegid (2) ( FreeBSD man: Системные вызовы )
  • setegid (2) ( Русские man: Системные вызовы )
  • setegid (2) ( Linux man: Системные вызовы )
  • >> setegid (3) ( POSIX man: Библиотечные вызовы )
  •  

    NAME

    setegid - set the effective group ID
     
    

    SYNOPSIS

    #include <unistd.h>

    int setegid(gid_t gid);
     

    DESCRIPTION

    If gid is equal to the real group ID or the saved set-group-ID, or if the process has appropriate privileges, setegid() shall set the effective group ID of the calling process to gid; the real group ID, saved set-group-ID, and any supplementary group IDs shall remain unchanged.

    The setegid() function shall not affect the supplementary group list in any way.  

    RETURN VALUE

    Upon successful completion, 0 shall be returned; otherwise, -1 shall be returned and errno set to indicate the error.  

    ERRORS

    The setegid() function shall fail if:

    EINVAL
    The value of the gid argument is invalid and is not supported by the implementation.
    EPERM
    The process does not have appropriate privileges and gid does not match the real group ID or the saved set-group-ID.

    The following sections are informative.  

    EXAMPLES

    None.  

    APPLICATION USAGE

    None.  

    RATIONALE

    Refer to the RATIONALE section in setuid() .  

    FUTURE DIRECTIONS

    None.  

    SEE ALSO

    exec() , getegid() , geteuid() , getgid() , getuid() , seteuid() , setgid() , setregid() , setreuid() , setuid() , the Base Definitions volume of IEEE Std 1003.1-2001, <sys/types.h>, <unistd.h>  

    COPYRIGHT

    Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUE
    ERRORS
    EXAMPLES
    APPLICATION USAGE
    RATIONALE
    FUTURE DIRECTIONS
    SEE ALSO
    COPYRIGHT


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