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-rw-r--r--grp/tst_fgetgrent.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/grp/tst_fgetgrent.c b/grp/tst_fgetgrent.c
new file mode 100644
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+++ b/grp/tst_fgetgrent.c
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+/* Copyright (C) 1999 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <grp.h>
+#include <stdio.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)
+ {
+ /* 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:0:one");
+ write_users (f, pos, 1);
+ fprintf (f, "two:x:1:two");
+ write_users (f, pos, 2);
+ fprintf (f, "three:x:2");
+ 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", 0, g);
+ g = fgetgrent (f);
+ test_entry ("two", 1, g);
+ g = fgetgrent (f);
+ test_entry ("three", 2, g);
+ fclose (f);
+}
+
+
+int
+main (void)
+{
+ char *file = tmpnam (NULL);
+ int i;
+
+ for (i = 0; i < 4; i++)
+ {
+ printf ("Pass %d\n", i);
+ write_group (file, i);
+ test_fgetgrent (file);
+ }
+ remove (file);
+
+ return (errors != 0);
+}