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/* Test large input for sgetsgent (bug 30151).
Copyright (C) 2023 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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
<https://www.gnu.org/licenses/>. */
#include <gshadow.h>
#include <stddef.h>
#include <support/check.h>
#include <support/support.h>
#include <support/xmemstream.h>
#include <stdlib.h>
static int
do_test (void)
{
/* Create a shadow group with 1000 members. */
struct xmemstream mem;
xopen_memstream (&mem);
const char *passwd = "k+zD0nucwfxAo3sw1NXUj6K5vt5M16+X0TVGdE1uFvq5R8V7efJ";
fprintf (mem.out, "group-name:%s::m0", passwd);
for (int i = 1; i < 1000; ++i)
fprintf (mem.out, ",m%d", i);
xfclose_memstream (&mem);
/* Call sgetsgent. */
char *input = mem.buffer;
struct sgrp *e = sgetsgent (input);
TEST_VERIFY_EXIT (e != NULL);
TEST_COMPARE_STRING (e->sg_namp, "group-name");
TEST_COMPARE_STRING (e->sg_passwd, passwd);
/* No administrators. */
TEST_COMPARE_STRING (e->sg_adm[0], NULL);
/* Check the members list. */
for (int i = 0; i < 1000; ++i)
{
char *member = xasprintf ("m%d", i);
TEST_COMPARE_STRING (e->sg_mem[i], member);
free (member);
}
TEST_COMPARE_STRING (e->sg_mem[1000], NULL);
/* Check that putsgent brings back the input string. */
xopen_memstream (&mem);
TEST_COMPARE (putsgent (e, mem.out), 0);
xfclose_memstream (&mem);
/* Compare without the trailing '\n' that putsgent added. */
TEST_COMPARE (mem.buffer[mem.length - 1], '\n');
mem.buffer[mem.length - 1] = '\0';
TEST_COMPARE_STRING (mem.buffer, input);
free (mem.buffer);
free (input);
return 0;
}
#include <support/test-driver.c>
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