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Return the full group count when it exceeds the maximum. Also DTRT if the 

maximum is 0 (possibly used to size the list for memory allocation, rather
than core dumping).
This commit is contained in:
mycroft 1999-04-05 18:52:28 +00:00
parent e20f288fe5
commit 71ebbb8000
1 changed files with 11 additions and 7 deletions
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18
lib/libc/gen/getgrouplist.c
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@ -1,4 +1,4 @@
/* $NetBSD: getgrouplist.c,v 1.9 1998/02/03 18:23:44 perry Exp $ */
/* $NetBSD: getgrouplist.c,v 1.10 1999/04/05 18:52:28 mycroft Exp $ */
/*
* Copyright (c) 1991, 1993
@ -38,7 +38,7 @@
#if 0
static char sccsid[] = "@(#)getgrouplist.c 8.2 (Berkeley) 12/8/94";
#else
__RCSID("$NetBSD: getgrouplist.c,v 1.9 1998/02/03 18:23:44 perry Exp $");
__RCSID("$NetBSD: getgrouplist.c,v 1.10 1999/04/05 18:52:28 mycroft Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
@ -73,7 +73,11 @@ getgrouplist(uname, agroup, groups, grpcnt)
/*
* install primary group
*/
groups[ngroups++] = agroup;
if (ngroups < maxgroups)
groups[ngroups] = agroup;
else
ret = -1;
ngroups++;
/*
* Scan the group file to find additional groups.
@ -84,11 +88,11 @@ getgrouplist(uname, agroup, groups, grpcnt)
continue;
for (i = 0; grp->gr_mem[i]; i++) {
if (!strcmp(grp->gr_mem[i], uname)) {
if (ngroups >= maxgroups) {
if (ngroups < maxgroups)
groups[ngroups] = grp->gr_gid;
else
ret = -1;
goto out;
}
groups[ngroups++] = grp->gr_gid;
ngroups++;
break;
}
}