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Update to 4.4-Lite version.

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This commit is contained in:
mycroft 1994-09-19 07:50:52 +00:00
parent 2c009d6038
commit fedcc257c7
2 changed files with 26 additions and 57 deletions
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31
lib/libc/gen/initgroups.3
View File

@ -1,5 +1,5 @@
.\" Copyright (c) 1983, 1991 Regents of the University of California.
.\" All rights reserved.
.\" 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
@ -29,10 +29,10 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" from: @(#)initgroups.3 6.3 (Berkeley) 4/19/91
.\" $Id: initgroups.3,v 1.2 1993/07/30 08:36:59 mycroft Exp $
.\" from: @(#)initgroups.3 8.1 (Berkeley) 6/4/93
.\" $Id: initgroups.3,v 1.3 1994/09/19 07:50:52 mycroft Exp $
.\"
.Dd April 19, 1991
.Dd June 4, 1993
.Dt INITGROUPS 3
.Os BSD 4.2
.Sh NAME
@ -46,12 +46,13 @@
The
.Fn initgroups
function
reads through the group file and sets up,
using the
.Xr setgroups 2
call, the group access list for the user
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.
@ -62,12 +63,9 @@ The
.Fn initgroups
function
returns \-1 if it was not invoked by the super-user.
.Sh FILES
.Bl -tag -width /etc/group -compact
.It Pa /etc/group
.El
.Sh SEE ALSO
.Xr setgroups 2
.Xr setgroups 2 ,
.Xr getgrouplist 3
.Sh HISTORY
The
.Nm
@ -75,8 +73,9 @@ function appeared in
.Bx 4.2 .
.Sh BUGS
The
.Fn initgroups
function
.Fn getgrouplist
function called by
.Nm
uses the routines based on
.Xr getgrent 3 .
If the invoking program uses any of these routines,

52
lib/libc/gen/initgroups.c
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@ -1,6 +1,6 @@
/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.
* Copyright (c) 1983, 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
@ -32,57 +32,27 @@
*/
#if defined(LIBC_SCCS) && !defined(lint)
/*static char *sccsid = "from: @(#)initgroups.c 5.7 (Berkeley) 2/23/91";*/
static char *rcsid = "$Id: initgroups.c,v 1.4 1994/03/30 03:51:32 cgd Exp $";
/*static char sccsid[] = "from: @(#)initgroups.c 8.1 (Berkeley) 6/4/93";*/
static char *rcsid = "$Id: initgroups.c,v 1.5 1994/09/19 07:50:54 mycroft Exp $";
#endif /* LIBC_SCCS and not lint */
/*
* initgroups
*/
#include <sys/param.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <grp.h>
struct group *getgrent();
#include <stdio.h>
int
initgroups(uname, agroup)
const char *uname;
int agroup;
{
gid_t groups[NGROUPS];
int ngroups = 0;
register struct group *grp;
register int i;
int groups[NGROUPS], ngroups;
/*
* If installing primary group, duplicate it;
* the first element of groups is the effective gid
* and will be overwritten when a setgid file is executed.
*/
if (agroup >= 0) {
groups[ngroups++] = agroup;
groups[ngroups++] = agroup;
}
setgrent();
while (grp = getgrent()) {
if (grp->gr_gid == agroup)
continue;
for (i = 0; grp->gr_mem[i]; i++)
if (!strcmp(grp->gr_mem[i], uname)) {
if (ngroups == NGROUPS) {
fprintf(stderr, "initgroups: %s is in too many groups\n", uname);
goto toomany;
}
groups[ngroups++] = grp->gr_gid;
}
}
toomany:
endgrent();
ngroups = NGROUPS;
if (getgrouplist(uname, agroup, groups, &ngroups) < 0)
warnx("%s is in too many groups, using first %d",
uname, ngroups);
if (setgroups(ngroups, groups) < 0) {
perror("setgroups");
warn("setgroups");
return (-1);
}
return (0);