BSD 4_4 development

[unix-history] / usr / share / man / cat2 / geteuid.0

GETUID(2)                   BSD Programmer's Manual                  GETUID(2)

N\bNA\bAM\bME\bE
    g\bge\bet\btu\bui\bid\bd, g\bge\bet\bte\beu\bui\bid\bd - get user identification

S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
    #\b#i\bin\bnc\bcl\blu\bud\bde\be <\b<u\bun\bni\bis\bst\btd\bd.\b.h\bh>\b>
    #\b#i\bin\bnc\bcl\blu\bud\bde\be <\b<s\bsy\bys\bs/\b/t\bty\byp\bpe\bes\bs.\b.h\bh>\b>

    _\bu_\bi_\bd_\b__\bt
    g\bge\bet\btu\bui\bid\bd(_\bv_\bo_\bi_\bd);

    _\bu_\bi_\bd_\b__\bt
    g\bge\bet\bte\beu\bui\bid\bd(_\bv_\bo_\bi_\bd);

D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
    The g\bge\bet\btu\bui\bid\bd() function returns the real user ID of the calling process.
    The g\bge\bet\bte\beu\bui\bid\bd() function returns the effective user ID of the calling pro-
    cess.

    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 execu-
    tion of ``_\bs_\be_\bt_\b-_\bu_\bs_\be_\br_\b-_\bI_\bD'' mode processes, g\bge\bet\btu\bui\bid\bd() is used to determine the
    real-user-id of the calling process.

E\bER\bRR\bRO\bOR\bRS\bS
    The g\bge\bet\btu\bui\bid\bd() and g\bge\bet\bte\beu\bui\bid\bd() functions are always successful, and no return
    value is reserved to indicate an error.

S\bSE\bEE\bE A\bAL\bLS\bSO\bO
    getgid(2),  setreuid(2)

S\bST\bTA\bAN\bND\bDA\bAR\bRD\bDS\bS
    G\bGe\bet\bte\beu\bui\bid\bd() and g\bge\bet\btu\bui\bid\bd() conform to IEEE Std 1003.1-1988 (``POSIX'').

4th Berkeley Distribution        June 4, 1993                                1