From 49d66bcce5aa57acc5fb71efe93f531cae9d7402 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Sat, 21 Sep 2019 06:14:58 +0000
Subject:  Remove tainnow dependency in configure too

---
 src/libnsss/nsss_unix_getgrouplist.c | 43 ++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 src/libnsss/nsss_unix_getgrouplist.c

(limited to 'src/libnsss/nsss_unix_getgrouplist.c')

diff --git a/src/libnsss/nsss_unix_getgrouplist.c b/src/libnsss/nsss_unix_getgrouplist.c
new file mode 100644
index 0000000..e9a11ab
--- /dev/null
+++ b/src/libnsss/nsss_unix_getgrouplist.c
@@ -0,0 +1,43 @@
+/* ISC license. */
+
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <limits.h>
+
+#include <skalibs/stralloc.h>
+#include <skalibs/genalloc.h>
+#include <skalibs/skamisc.h>
+
+#include <nsss/grp-def.h>
+#include <nsss/grp-unix.h>
+#include <nsss/nsss-unix.h>
+#include "nsss-unix-internal.h"
+
+int nsss_unix_getgrouplist (char const *user, gid_t gid, gid_t *gids, int *ngids)
+{
+  nsss_unix_t a = NSSS_UNIX_ZERO ;
+  stralloc sa = STRALLOC_ZERO ;
+  genalloc ga = GENALLOC_ZERO ;  /* char * */
+  int e = errno ;
+  size_t r = 0 ;
+  size_t n ;
+  if (*ngids < 0) return (errno = EINVAL, -1) ;
+  n = *ngids ;
+  if (!nsss_unix_grp_start(&a)) return -1 ;
+  if (!nsss_unix_grp_getlist(&a, gids, n, &r, &sa, &ga, user)) return -1 ;
+  nsss_unix_grp_end(&a) ;
+  if (r > INT_MAX) return (errno = EMSGSIZE, -1) ;
+  if (r > n) return (*ngids = (int)r, errno = ENOBUFS, -1) ;
+  for (size_t i = 0 ; i < r ; i++)
+    if (gid == gids[i]) goto ok ;
+  r++ ;
+  if (r > INT_MAX) return (errno = EMSGSIZE, -1) ;
+  if (r > n) return (*ngids = (int)r, errno = ENOBUFS, -1) ;
+  memmove(gids + 1, gids, (r-1) * sizeof(gid_t)) ;
+  gids[0] = gid ;
+ ok:
+  *ngids = (int)r ;
+  errno = e ;
+  return (int)n ;
+}
-- 
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