99 groups_check_positive_len(int ngrp)  in groups_check_positive_len()  argument
101 	MPASS2(ngrp >= 0, "negative number of groups");  in groups_check_positive_len()
102 	MPASS2(ngrp != 0, "at least one group expected (effective GID)");  in groups_check_positive_len()
105 groups_check_max_len(int ngrp)  in groups_check_max_len()  argument
107 	MPASS2(ngrp <= ngroups_max + 1, "too many groups");  in groups_check_max_len()
110 static void groups_normalize(int *ngrp, gid_t *groups);
111 static void crsetgroups_internal(struct ucred *cr, int ngrp,
324 	int ngrp, error;  in sys_getgroups()  local
327 	ngrp = cred->cr_ngroups;  in sys_getgroups()
333 	if (uap->gidsetsize < ngrp)  in sys_getgroups()
336 	error = copyout(cred->cr_groups, uap->gidset, ngrp * sizeof(gid_t));  in sys_getgroups()
338 	td->td_retval[0] = ngrp;  in sys_getgroups()
729 		int ngrp = wcred->sc_supp_groups_nb;  in kern_setcred()  local
735 		AUDIT_ARG_GROUPSET(groups + 1, ngrp);  in kern_setcred()
736 		++ngrp;  in kern_setcred()
737 		groups_normalize(&ngrp, groups);  in kern_setcred()
738 		wcred->sc_supp_groups_nb = ngrp - 1;  in kern_setcred()
1235 	int ngrp, error;  in kern_setgroups()  local
1237 	ngrp = *ngrpp;  in kern_setgroups()
1239 	if (ngrp < 0 || ngrp > ngroups_max + 1)  in kern_setgroups()
1242 	AUDIT_ARG_GROUPSET(groups, ngrp);  in kern_setgroups()
1243 	if (ngrp != 0) {  in kern_setgroups()
1246 		ngrp = *ngrpp;  in kern_setgroups()
1249 	if (ngrp != 0)  in kern_setgroups()
1250 		crextend(newcred, ngrp);  in kern_setgroups()
1255 	error = ngrp == 0 ?  in kern_setgroups()
1258 	    mac_cred_check_setgroups(oldcred, ngrp, groups);  in kern_setgroups()
1267 	if (ngrp == 0) {  in kern_setgroups()
1276 		crsetgroups_internal(newcred, ngrp, groups);  in kern_setgroups()
1689 groups_check_normalized(int ngrp, const gid_t *groups)  in groups_check_normalized()  argument
1693 	groups_check_positive_len(ngrp);  in groups_check_normalized()
1694 	groups_check_max_len(ngrp);  in groups_check_normalized()
1696 	if (ngrp == 1)  in groups_check_normalized()
1700 	for (int i = 2; i < ngrp; ++i) {  in groups_check_normalized()
2806 groups_normalize(int *ngrp, gid_t *groups)  in groups_normalize()  argument
2811 	groups_check_positive_len(*ngrp);  in groups_normalize()
2812 	groups_check_max_len(*ngrp);  in groups_normalize()
2814 	if (*ngrp == 1)  in groups_normalize()
2817 	qsort(groups + 1, *ngrp - 1, sizeof(*groups), gidp_cmp);  in groups_normalize()
2822 	for (int i = 2; i < *ngrp; ++i) {  in groups_normalize()
2832 	*ngrp = ins_idx;  in groups_normalize()
2834 	groups_check_normalized(*ngrp, groups);  in groups_normalize()
2850 crsetgroups_internal(struct ucred *cr, int ngrp, const gid_t *groups)  in crsetgroups_internal()  argument
2854 	MPASS2(cr->cr_agroups >= ngrp, "'cr_agroups' too small");  in crsetgroups_internal()
2855 	groups_check_positive_len(ngrp);  in crsetgroups_internal()
2857 	bcopy(groups, cr->cr_groups, ngrp * sizeof(gid_t));  in crsetgroups_internal()
2858 	cr->cr_ngroups = ngrp;  in crsetgroups_internal()
2870 crsetgroups(struct ucred *cr, int ngrp, const gid_t *groups)  in crsetgroups()  argument
2873 	if (ngrp > ngroups_max + 1)  in crsetgroups()
2874 		ngrp = ngroups_max + 1;  in crsetgroups()
2882 	crextend(cr, ngrp);  in crsetgroups()
2883 	crsetgroups_internal(cr, ngrp, groups);  in crsetgroups()
2895 crsetgroups_fallback(struct ucred *cr, int ngrp, const gid_t *groups,  in crsetgroups_fallback()  argument
2898 	if (ngrp == 0)  in crsetgroups_fallback()
2902 		crsetgroups(cr, ngrp, groups);  in crsetgroups_fallback()