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/* ISC license. */
#include <string.h>
#include <errno.h>
#include <skalibs/stralloc.h>
#include <skalibs/genalloc.h>
#include <nsss/grp-unix.h>
#include <nsss/nsss-unix.h>
int nsss_unix_grp_getlist (nsss_unix_t *a, char const *user, gid_t *gids, size_t n, size_t *r, stralloc *sa, genalloc *ga)
{
int sawasnull = !sa->s ;
int gawasnull = !genalloc_s(char *, ga) ;
size_t sabase = sa->len ;
size_t gabase = genalloc_len(char *, ga) ;
size_t m = 0 ;
for (;;)
{
struct group gr ;
sa->len = sabase ;
genalloc_setlen(char *, ga, gabase) ;
errno = 0 ;
if (!nsss_unix_grp_get(a, &gr, sa, ga))
{
if (errno) goto err ;
else break ;
}
for (char **p = gr.gr_mem ; *p ; p++)
if (!strcmp(user, *p))
{
if (m < n) gids[m] = gr.gr_gid ;
m++ ;
break ;
}
}
if (gawasnull) genalloc_free(char *, ga) ;
else genalloc_setlen(char *, ga, gabase) ;
if (sawasnull) stralloc_free(sa) ;
else sa->len = sabase ;
*r = m ;
return 1 ;
err:
if (gawasnull) genalloc_free(char *, ga) ;
else genalloc_setlen(char *, ga, gabase) ;
if (sawasnull) stralloc_free(sa) ;
else sa->len = sabase ;
return 0 ;
}
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