* Copyright (c) 1983 Regents of the University of California.
* %sccs.include.redist.c%
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid
[] = "@(#)initgroups.c 5.7 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */
struct group
*getgrent();
initgroups(uname
, agroup
)
int groups
[NGROUPS
], ngroups
= 0;
register struct group
*grp
;
* 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.
groups
[ngroups
++] = agroup
;
groups
[ngroups
++] = agroup
;
while (grp
= getgrent()) {
if (grp
->gr_gid
== agroup
)
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
);
groups
[ngroups
++] = grp
->gr_gid
;
if (setgroups(ngroups
, groups
) < 0) {