update from main archive 961008

[kopensolaris-gnu/glibc.git] / sunrpc / auth_unix.c

diff --git a/sunrpc/auth_unix.c b/sunrpc/auth_unix.c
index 92703fb..9062e79 100644 (file)
--- a/sunrpc/auth_unix.c
+++ b/sunrpc/auth_unix.c
@@ -43,7 +43,10 @@ static char sccsid[] = "@(#)auth_unix.c 1.19 87/08/11 Copyr 1984 Sun Micro";
  *
  */
 
+#include <limits.h>
 #include <stdio.h>
+#include <unistd.h>
+#include <sys/params.h>
 
 #include <rpc/types.h>
 #include <rpc/xdr.h>
@@ -171,16 +174,21 @@ authunix_create_default()
        char machname[MAX_MACHINE_NAME + 1];
        register int uid;
        register int gid;
-       int gids[NGRPS];
+       int max_nr_groups = sysconf (_SC_NGROUP_MAX);
+       gid_t gids[max_nr_groups];
 
        if (gethostname(machname, MAX_MACHINE_NAME) == -1)
                abort();
        machname[MAX_MACHINE_NAME] = 0;
        uid = geteuid();
        gid = getegid();
-       if ((len = getgroups(NGRPS, gids)) < 0)
+
+       if ((len = getgroups(max_nr_groups, gids)) < 0)
                abort();
-       return (authunix_create(machname, uid, gid, len, gids));
+       /* This braindamaged Sun code forces us here to truncate the
+          list of groups to NGRPS members since the code in
+          authuxprot.c transforms a fixed array.  Grrr.  */
+       return (authunix_create(machname, uid, gid, MIN (NGRPS, len), gids));
 }
 
 /*