| /* Copyright (C) 1999-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Andreas Jaeger <aj@arthur.rhein-neckar.de>, 1999. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <grp.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/types.h> |
| |
| static int errors; |
| |
| static void |
| write_users (FILE *f, int large_pos, int pos) |
| { |
| int i; |
| |
| if (pos == large_pos) |
| { |
| if (large_pos == 3) |
| fprintf (f, ":three"); |
| |
| /* we need more than 2048 bytes for proper testing. */ |
| for (i = 0; i < 500; i++) |
| fprintf (f, ",user%03d", i); |
| } |
| fprintf (f, "\n"); |
| |
| } |
| |
| static void |
| write_group (const char *filename, int pos) |
| { |
| FILE *f; |
| |
| f = fopen (filename, "w"); |
| fprintf (f, "one:x:1:one"); |
| write_users (f, pos, 1); |
| fprintf (f, "two:x:2:two"); |
| write_users (f, pos, 2); |
| fprintf (f, "three:x:3"); |
| write_users (f, pos, 3); |
| fclose (f); |
| } |
| |
| static void |
| test_entry (const char *name, gid_t gid, struct group *g) |
| { |
| if (!g) |
| { |
| printf ("Error: Entry is empty\n"); |
| errors++; |
| return; |
| } |
| |
| if ((g->gr_gid == gid) && (strcmp (g->gr_name, name) == 0)) |
| printf ("Ok: %s: %d\n", g->gr_name, g->gr_gid); |
| else |
| { |
| printf ("Error: %s: %d should be: %s: %d\n", g->gr_name, g->gr_gid, |
| name, gid); |
| errors++; |
| } |
| } |
| |
| |
| static void |
| test_fgetgrent (const char *filename) |
| { |
| struct group *g; |
| FILE *f; |
| |
| f = fopen (filename,"r"); |
| |
| g = fgetgrent (f); |
| test_entry ("one", 1, g); |
| g = fgetgrent (f); |
| test_entry ("two", 2, g); |
| g = fgetgrent (f); |
| test_entry ("three", 3, g); |
| fclose (f); |
| } |
| |
| |
| int |
| main (int argc, char *argv[]) |
| { |
| char *file = tmpnam (NULL); |
| int i = 0; |
| |
| if (argc > 1) |
| i = atoi (argv[1]); |
| if (i > 3) |
| i = 3; |
| if (i) |
| printf ("Large group is group: %d\n", i); |
| else |
| printf ("Not using a large group\n"); |
| write_group (file, i); |
| test_fgetgrent (file); |
| |
| remove (file); |
| |
| return (errors != 0); |
| } |