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2bac7daa58
If /etc/aliases ends with a continuation line (a line that starts with whitespace) which does not have a trailing newline character, the file parser would crash due to a null pointer dereference. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/* Check handling of missing end-of-line at end of /etc/aliases (bug 24059).
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Copyright (C) 2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 <aliases.h>
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#include <nss.h>
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#include <stddef.h>
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#include <support/check.h>
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#include <support/namespace.h>
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#include <support/test-driver.h>
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#include <support/xunistd.h>
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static void
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in_chroot (void *closure)
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{
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struct support_chroot *chroot_env = closure;
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xchroot (chroot_env->path_chroot);
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struct aliasent *e = getaliasbyname ("user1");
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TEST_VERIFY_EXIT (e != NULL);
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TEST_COMPARE_STRING (e->alias_name, "user1");
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TEST_COMPARE (e->alias_members_len, 1);
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TEST_VERIFY_EXIT (e->alias_members != NULL);
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TEST_COMPARE_STRING (e->alias_members[0], "alias1");
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TEST_VERIFY (e->alias_local);
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}
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static int
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do_test (void)
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{
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/* nss_files has already been loaded via DT_NEEDED, outside the
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chroot. */
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__nss_configure_lookup ("aliases", "files");
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support_become_root ();
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if (!support_can_chroot ())
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return EXIT_UNSUPPORTED;
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struct support_chroot *chroot_env = support_chroot_create
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((struct support_chroot_configuration)
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{
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.aliases = "user1: alias1,\n"
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" " /* Continuation line, but no \n. */
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});
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support_isolate_in_subprocess (in_chroot, chroot_env);
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support_chroot_free (chroot_env);
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return 0;
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}
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#include <support/test-driver.c>
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