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/* ISC license. */
#include <string.h>
#include <pthread.h>
#include <skalibs/types.h>
#include <skalibs/genalloc.h>
#include <skalibs/skamisc.h>
#include <nsss/grp-def.h>
#include <nsss/nsss-unix.h>
#include "nsss-unix-internal.h"
static inline char **grp_parsemem (char *s, genalloc *ga)
{
char **grmem ;
char **p ;
size_t n = 0 ;
for (char *t = s ; *t ; t++) if (*t == ',') { n++ ; *t = 0 ; } ;
if (*s) n++ ;
if (!genalloc_readyplus(char *, ga, n+1)) return 0 ;
p = genalloc_s(char *, ga) + genalloc_len(char *, ga) ;
grmem = p ;
for (size_t i = 0 ; i < n ; i++) { *p++ = s ; s += strlen(s) + 1 ; }
*p++ = 0 ;
genalloc_setlen(char *, ga, genalloc_len(char *, ga) + n+1) ;
return grmem ;
}
static inline int grp_parseline (struct group *gr, char *s, size_t max, genalloc *ga)
{
struct group gr2 ;
char *p ;
s[max-1] = 0 ;
if (!nsss_unix_field(&gr2.gr_name, &s)) return 0 ;
if (!nsss_unix_field(&gr2.gr_passwd, &s)) return 0 ;
if (!nsss_unix_field(&p, &s)) return 0 ;
if (!gid0_scan(p, &gr2.gr_gid)) return 0 ;
gr2.gr_mem = grp_parsemem(s, ga) ;
if (!gr2.gr_mem) return 0 ;
*gr = gr2 ;
return 1 ;
}
int nsss_unix_grp_get (nsss_unix_t *a, struct group *gr, stralloc *sa, genalloc *ga)
{
int cs ;
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs) ;
for (;;)
{
size_t sabase = sa->len ;
size_t gabase = genalloc_len(char *, ga) ;
if (skagetln_loose(&a->b, sa, '\n') <= 0) goto err ;
if (grp_parseline(gr, sa->s + sabase, sa->len - sabase, ga)) break ;
sa->len = sabase ;
genalloc_setlen(char *, ga, gabase) ;
}
pthread_setcancelstate(cs, 0) ;
return 1 ;
err:
pthread_setcancelstate(cs, 0) ;
return 0 ;
}
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