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

  • BSD mandoc
     

    NAME

    
    
    getuid
    
     
    geteuid
    
     - get user identification
    
     
    

    LIBRARY

    Lb libc
    
     
    

    SYNOPSIS

       #include <unistd.h>
       #include <sys/types.h>
    uid_t getuid (void);
    uid_t geteuid (void);
     

    DESCRIPTION

    The getuid ();
    system call returns the real user ID of the calling process. The geteuid ();
    system call returns the effective user ID of the calling process.

    The real user ID is that of the user who has invoked the program. As the effective user ID gives the process additional permissions during execution of ``set-user-ID '' mode processes, getuid ();
    is used to determine the real-user-id of the calling process.  

    ERRORS

    The getuid ();
    and geteuid ();
    system calls are always successful, and no return value is reserved to indicate an error.  

    SEE ALSO

    getgid(2), issetugid(2), setgid(2), setreuid(2), setuid(2)  

    STANDARDS

    The geteuid ();
    and getuid ();
    system calls are expected to conform to St -p1003.1-90 .  

    HISTORY

    The getuid ();
    and geteuid ();
    functions appeared in AT&T System v7 .


     

    Index

    NAME
    LIBRARY
    SYNOPSIS
    DESCRIPTION
    ERRORS
    SEE ALSO
    STANDARDS
    HISTORY


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