source: azure_iot_hub/trunk/musl-1.1.18/src/passwd/getgrent.c@ 389

#include "pwf.h"

static FILE *f;
static char *line, **mem;
static struct group gr;

void setgrent()
{
        if (f) fclose(f);
        f = 0;
}

weak_alias(setgrent, endgrent);

struct group *getgrent()
{
        struct group *res;
        size_t size=0, nmem=0;
        if (!f) f = fopen("/etc/group", "rbe");
        if (!f) return 0;
        __getgrent_a(f, &gr, &line, &size, &mem, &nmem, &res);
        return res;
}

struct group *getgrgid(gid_t gid)
{
        struct group *res;
        size_t size=0, nmem=0;
        __getgr_a(0, gid, &gr, &line, &size, &mem, &nmem, &res);
        return res;
}

struct group *getgrnam(const char *name)
{
        struct group *res;
        size_t size=0, nmem=0;
        __getgr_a(name, 0, &gr, &line, &size, &mem, &nmem, &res);
        return res;
}