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| -rw-r--r-- | grp/tst_fgetgrent.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/grp/tst_fgetgrent.c b/grp/tst_fgetgrent.c new file mode 100644 index 0000000000..e7cd0d92b5 --- /dev/null +++ b/grp/tst_fgetgrent.c @@ -0,0 +1,111 @@ +/* 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); +} |