| | 1 | .\" $NetBSD: getgid.2,v 1.5 1995/02/27 12:32:53 cgd Exp $ |
| | 2 | .\" |
| | 3 | .\" Copyright (c) 1983, 1991, 1993 |
| | 4 | .\" The Regents of the University of California. All rights reserved. |
| | 5 | .\" |
| | 6 | .\" Redistribution and use in source and binary forms, with or without |
| | 7 | .\" modification, are permitted provided that the following conditions |
| | 8 | .\" are met: |
| | 9 | .\" 1. Redistributions of source code must retain the above copyright |
| | 10 | .\" notice, this list of conditions and the following disclaimer. |
| | 11 | .\" 2. Redistributions in binary form must reproduce the above copyright |
| | 12 | .\" notice, this list of conditions and the following disclaimer in the |
| | 13 | .\" documentation and/or other materials provided with the distribution. |
| | 14 | .\" 3. All advertising materials mentioning features or use of this software |
| | 15 | .\" must display the following acknowledgement: |
| | 16 | .\" This product includes software developed by the University of |
| | 17 | .\" California, Berkeley and its contributors. |
| | 18 | .\" 4. Neither the name of the University nor the names of its contributors |
| | 19 | .\" may be used to endorse or promote products derived from this software |
| | 20 | .\" without specific prior written permission. |
| | 21 | .\" |
| | 22 | .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| | 23 | .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | 24 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| | 25 | .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| | 26 | .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | 27 | .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| | 28 | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| | 29 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| | 30 | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| | 31 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| | 32 | .\" SUCH DAMAGE. |
| | 33 | .\" |
| | 34 | .\" @(#)getgid.2 8.1 (Berkeley) 6/4/93 |
| | 35 | .\" |
| | 36 | .Dd June 4, 1993 |
| | 37 | .Dt GETGID 2 |
| | 38 | .Os BSD 4.2 |
| | 39 | .Sh NAME |
| | 40 | .Nm getegid , |
| | 41 | .Nm getgid |
| | 42 | .Nd get group process identification |
| | 43 | .Sh SYNOPSIS |
| | 44 | .Fd #include <unistd.h> |
| | 45 | .Ft gid_t |
| | 46 | .Fo getegid |
| | 47 | .Fa void |
| | 48 | .Fc |
| | 49 | .Ft gid_t |
| | 50 | .Fo getgid |
| | 51 | .Fa void |
| | 52 | .Fc |
| | 53 | .Sh DESCRIPTION |
| | 54 | The |
| | 55 | .Fn getgid |
| | 56 | function returns the real group ID of the calling process, |
| | 57 | .Fn getegid |
| | 58 | returns the effective group ID of the calling process. |
| | 59 | .Pp |
| | 60 | The real group ID is specified at login time. |
| | 61 | .Pp |
| | 62 | The real group ID is the group of the user who invoked the program. |
| | 63 | As the effective group ID gives the process additional permissions |
| | 64 | during the execution of |
| | 65 | .Dq Em set-group-ID |
| | 66 | mode processes, |
| | 67 | .Fn getgid |
| | 68 | is used to determine the real-user-id of the calling process. |
| | 69 | .Sh ERRORS |
| | 70 | The |
| | 71 | .Fn getgid |
| | 72 | and |
| | 73 | .Fn getegid |
| | 74 | functions are always successful; |
| | 75 | no return value is reserved to indicate an error. |
| | 76 | .Sh LEGACY SYNOPSIS |
| | 77 | .Fd #include <sys/types.h> |
| | 78 | .Fd #include <unistd.h> |
| | 79 | .Pp |
| | 80 | The include file |
| | 81 | .In sys/types.h |
| | 82 | is necessary. |
| | 83 | .Sh SEE ALSO |
| | 84 | .Xr getuid 2 , |
| | 85 | .Xr setregid 2 , |
| | 86 | .Xr setgid 3 |
| | 87 | .Sh STANDARDS |
| | 88 | .Fn getgid |
| | 89 | and |
| | 90 | .Fn getegid |
| | 91 | conform to |
| | 92 | .St -p1003.1-88 . |
projects / apple / xnu.git / blame_incremental