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Annotation of 43BSDReno/lib/libc/sys/getgroups.2, revision 1.1.1.1

1.1       root        1: .\" Copyright (c) 1983 The Regents of the University of California.
                      2: .\" All rights reserved.
                      3: .\"
                      4: .\" Redistribution and use in source and binary forms are permitted provided
                      5: .\" that: (1) source distributions retain this entire copyright notice and
                      6: .\" comment, and (2) distributions including binaries display the following
                      7: .\" acknowledgement:  ``This product includes software developed by the
                      8: .\" University of California, Berkeley and its contributors'' in the
                      9: .\" documentation or other materials provided with the distribution and in
                     10: .\" all advertising materials mentioning features or use of this software.
                     11: .\" Neither the name of the University nor the names of its contributors may
                     12: .\" be used to endorse or promote products derived from this software without
                     13: .\" specific prior written permission.
                     14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     17: .\"
                     18: .\"    @(#)getgroups.2 6.6 (Berkeley) 6/23/90
                     19: .\"
                     20: .TH GETGROUPS 2 "June 23, 1990"
                     21: .UC 5
                     22: .SH NAME
                     23: getgroups \- get group access list
                     24: .SH SYNOPSIS
                     25: .nf
                     26: .ft B
                     27: #include <sys/param.h>
                     28: .PP
                     29: .ft B
                     30: ngroups = getgroups(gidsetlen, gidset)
                     31: int ngroups, gidsetlen, *gidset;
                     32: .fi
                     33: .SH DESCRIPTION
                     34: .I Getgroups
                     35: gets the current group access list of the user process
                     36: and stores it in the array 
                     37: .IR gidset .
                     38: The parameter
                     39: .I gidsetlen
                     40: indicates the number of entries that may be placed in 
                     41: .IR gidset.
                     42: .I Getgroups
                     43: returns the actual number of groups returned in
                     44: .IR gidset .
                     45: No more than NGROUPS, as defined in
                     46: .RI < sys/param.h >,
                     47: will ever
                     48: be returned.
                     49: .SH "RETURN VALUE
                     50: A successful call returns the number of groups in the group set.
                     51: A value of \-1 indicates that an error occurred, and the error
                     52: code is stored in the global variable \fIerrno\fP\|.
                     53: .SH "ERRORS
                     54: The possible errors for \fIgetgroup\fP are:
                     55: .TP 15
                     56: [EINVAL]
                     57: The argument
                     58: .I gidsetlen
                     59: is smaller than the number of groups in the group set.
                     60: .TP
                     61: [EFAULT]
                     62: The argument \fIgidset\fP specifies
                     63: an invalid address.
                     64: .SH "SEE ALSO
                     65: setgroups(2), initgroups(3)
                     66: .SH BUGS
                     67: The
                     68: .I gidset
                     69: array should be of type
                     70: .BR gid_t ,
                     71: but remains integer for compatibility with earlier systems.

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