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