#include <grp.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <paths.h>
#include <string.h>
#include "parselib.h"

static struct state __ps;

void setgrent(void) {
  __prepare_parse(_PATH_GROUP,&__ps);
}

void endgrent(void) {
  __end_parse(&__ps);
}

#define GROUPS 16

int getgrent_r(struct group *res, char *buf, size_t buflen,
	       struct group **res_sig) {
  size_t i,j,n,g;
  unsigned long l;
  if (!__ps.buffirst) setgrent();
  if (!__ps.buffirst) goto error;
  if (__ps.cur>=__ps.buflen) goto error;
  res->gr_mem=(char**)buf;
again:
  n=GROUPS*sizeof(char*); g=0;
  for (i=0; i<4; ++i) {
    char sep=i<3?':':',';
    char found;
    j=__parse_1(&__ps,sep);
    if ((found=__ps.buffirst[__ps.cur+j])!=sep) {
      if (found!='\n' || i!=3) {
parseerror:
	while (__ps.cur+j<__ps.buflen) {