static int getgrouplist_getgrset(const char *user, gid_t gid, gid_t *groups,
int *grpcnt)
{
char *grplist;
char *grp;
gid_t temp_gid;
int num_gids = 1;
int ret = 0;
long l;
grplist = getgrset(user);
DEBUG(10, ("getgrset returned %s\n", grplist));
if (grplist == NULL) {
return -1;
}
if (*grpcnt > 0) {
groups[0] = gid;
}
while ((grp = strsep(&grplist, ",")) != NULL) {
l = strtol(grp, NULL, 10);
temp_gid = (gid_t) l;
if (temp_gid == gid) {
continue;
}
if (num_gids + 1 > *grpcnt) {
num_gids++;
continue;
}
groups[num_gids++] = temp_gid;
}
free(grplist);
if (num_gids > *grpcnt) {
ret = -1;
}
*grpcnt = num_gids;
DEBUG(10, ("Found %d groups for user %s\n", *grpcnt, user));
return ret;
}
int
getgrouplist(const char *user, gid_t pgid, gid_t *groups, int *grpcnt)
{
char *cp, *grplist, *grp;
gid_t gid;
int ret = 0, ngroups = 0, maxgroups;
long l;
maxgroups = *grpcnt;
if ((cp = grplist = getgrset(user)) == NULL)
return -1;
/* handle zero-length case */
if (maxgroups <= 0) {
*grpcnt = 0;
return -1;
}
/* copy primary group */
groups[ngroups++] = pgid;
/* copy each entry from getgrset into group list */
while ((grp = strsep(&grplist, ",")) != NULL) {
l = strtol(grp, NULL, 10);
if (ngroups >= maxgroups || l == LONG_MIN || l == LONG_MAX) {
ret = -1;
goto out;
}
gid = (gid_t)l;
if (gid == pgid)
continue; /* we have already added primary gid */
groups[ngroups++] = gid;
}
out:
free(cp);
*grpcnt = ngroups;
return ret;
}
/*
* BSD-compatible getgrouplist(3) using getgrset(3)
*/
int
getgrouplist(const char *name, gid_t basegid, gid_t *groups, int *ngroupsp)
{
char *cp, *grset = NULL;
int i, ngroups = 1;
int grpsize = *ngroupsp;
int rval = -1;
gid_t gid;
/* We support BSD semantics where the first element is the base gid */
if (grpsize <= 0)
return -1;
groups[0] = basegid;
#ifdef HAVE_SETAUTHDB
aix_setauthdb((char *) name);
#endif
if ((grset = getgrset(name)) != NULL) {
const char *errstr;
for (cp = strtok(grset, ","); cp != NULL; cp = strtok(NULL, ",")) {
gid = atoid(cp, NULL, NULL, &errstr);
if (errstr == NULL && gid != basegid) {
if (ngroups == grpsize)
goto done;
groups[ngroups++] = gid;
}
}
}
rval = 0;
done:
free(grset);
#ifdef HAVE_SETAUTHDB
aix_restoreauthdb();
#endif
*ngroupsp = ngroups;
return rval;
}
