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Diffstat (limited to 'lib/libc/gen/initgroups.3')
-rw-r--r-- | lib/libc/gen/initgroups.3 | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/lib/libc/gen/initgroups.3 b/lib/libc/gen/initgroups.3 new file mode 100644 index 0000000..3ed3ca7 --- /dev/null +++ b/lib/libc/gen/initgroups.3 @@ -0,0 +1,93 @@ +.\" Copyright (c) 1983, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)initgroups.3 8.1 (Berkeley) 6/4/93 +.\" $FreeBSD$ +.\" +.Dd June 4, 1993 +.Dt INITGROUPS 3 +.Os +.Sh NAME +.Nm initgroups +.Nd initialize group access list +.Sh LIBRARY +.Lb libc +.Sh SYNOPSIS +.In unistd.h +.Ft int +.Fn initgroups "const char *name" "gid_t basegid" +.Sh DESCRIPTION +The +.Fn initgroups +function +uses the +.Xr getgrouplist 3 +function to calculate the group access list for the user +specified in +.Fa name . +This group list is then setup for the current process using +.Xr setgroups 2 . +The +.Fa basegid +is automatically included in the groups list. +Typically this value is given as +the group number from the password file. +.Sh RETURN VALUES +.Rv -std initgroups +.Sh ERRORS +The +.Fn initgroups +function may fail and set +.Va errno +for any of the errors specified for the library function +.Xr setgroups 2 . +It may also return: +.Bl -tag -width Er +.It Bq Er ENOMEM +The +.Fn initgroups +function was unable to allocate temporary storage. +.El +.Sh SEE ALSO +.Xr setgroups 2 , +.Xr getgrouplist 3 +.Sh HISTORY +The +.Fn initgroups +function appeared in +.Bx 4.2 . +.Sh BUGS +The +.Fn getgrouplist +function called by +.Fn initgroups +uses the routines based on +.Xr getgrent 3 . +If the invoking program uses any of these routines, +the group structure will +be overwritten in the call to +.Fn initgroups . |