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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-24 04:52:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-24 04:52:22 +0000
commit3d08cd331c1adcf0d917392f7e527b3f00511748 (patch)
tree312f0d1e1632f48862f044b8bb87e602dcffb5f9 /man3/initgroups.3
parentAdding debian version 6.7-2. (diff)
downloadmanpages-3d08cd331c1adcf0d917392f7e527b3f00511748.tar.xz
manpages-3d08cd331c1adcf0d917392f7e527b3f00511748.zip
Merging upstream version 6.8.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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-'\" t
-.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
-.\"
-.\" SPDX-License-Identifier: Linux-man-pages-copyleft
-.\"
-.\" References consulted:
-.\" Linux libc source code
-.\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
-.\" 386BSD man pages
-.\" Modified 1993-07-24 by Rik Faith <faith@cs.unc.edu>
-.\" Modified 2004-10-10 by aeb
-.\"
-.TH initgroups 3 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-initgroups \- initialize the supplementary group access list
-.SH LIBRARY
-Standard C library
-.RI ( libc ", " \-lc )
-.SH SYNOPSIS
-.nf
-.B #include <sys/types.h>
-.B #include <grp.h>
-.P
-.BI "int initgroups(const char *" user ", gid_t " group );
-.fi
-.P
-.RS -4
-Feature Test Macro Requirements for glibc (see
-.BR feature_test_macros (7)):
-.RE
-.P
-.BR initgroups ():
-.nf
- Since glibc 2.19:
- _DEFAULT_SOURCE
- glibc 2.19 and earlier:
- _BSD_SOURCE
-.fi
-.SH DESCRIPTION
-The
-.BR initgroups ()
-function initializes the group access list by
-reading the group database
-.I /etc/group
-and using all groups of
-which
-.I user
-is a member.
-The additional group
-.I group
-is
-also added to the list.
-.P
-The
-.I user
-argument must be non-NULL.
-.SH RETURN VALUE
-The
-.BR initgroups ()
-function returns 0 on success.
-On error, \-1 is returned, and
-.I errno
-is set to indicate the error.
-.SH ERRORS
-.TP
-.B ENOMEM
-Insufficient memory to allocate group information structure.
-.TP
-.B EPERM
-The calling process has insufficient privilege.
-See the underlying system call
-.BR setgroups (2).
-.SH FILES
-.TP
-.I /etc/group
-group database file
-.SH ATTRIBUTES
-For an explanation of the terms used in this section, see
-.BR attributes (7).
-.TS
-allbox;
-lbx lb lb
-l l l.
-Interface Attribute Value
-T{
-.na
-.nh
-.BR initgroups ()
-T} Thread safety MT-Safe locale
-.TE
-.SH STANDARDS
-None.
-.SH HISTORY
-SVr4, 4.3BSD.
-.SH SEE ALSO
-.BR getgroups (2),
-.BR setgroups (2),
-.BR credentials (7)