12 int getgrouplist(const char *user, gid_t gid, gid_t *groups, int *ngroups)
14 int rv, nlim, ret = -1;
20 int32_t resp[INITGR_LEN];
21 uint32_t *nscdbuf = 0;
27 if (nlim >= 1) *groups++ = gid;
29 f = __nscd_query(GETINITGR, user, resp, sizeof resp, &swap);
31 if (resp[INITGRFOUND]) {
32 nscdbuf = calloc(resp[INITGRNGRPS], sizeof(uint32_t));
33 if (!nscdbuf) goto cleanup;
34 size_t nbytes = sizeof(*nscdbuf)*resp[INITGRNGRPS];
35 if (nbytes && !fread(nscdbuf, nbytes, 1, f)) {
36 if (!ferror(f)) errno = EIO;
40 for (i = 0; i < resp[INITGRNGRPS]; i++)
41 nscdbuf[i] = bswap_32(nscdbuf[i]);
46 f = fopen("/etc/group", "rbe");
47 if (!f && errno != ENOENT && errno != ENOTDIR)
51 while (!(rv = __getgrent_a(f, &gr, &buf, &size, &mem, &nmem, &res)) && res) {
53 for (i=0; i < resp[INITGRNGRPS]; i++) {
54 if (nscdbuf[i] == gr.gr_gid) nscdbuf[i] = gid;
56 for (i=0; gr.gr_mem[i] && strcmp(user, gr.gr_mem[i]); i++);
57 if (!gr.gr_mem[i]) continue;
58 if (++n <= nlim) *groups++ = gr.gr_gid;
66 for(i=0; i < resp[INITGRNGRPS]; i++) {
67 if (nscdbuf[i] != gid)
68 if(++n <= nlim) *groups++ = nscdbuf[i];
72 ret = n > nlim ? -1 : n;