@@ -219,8 +219,11 @@ tests := \
tst-fphex-wide \
tst-freopen2 \
tst-freopen3 \
+ tst-freopen4 \
+ tst-freopen5 \
tst-freopen64-2 \
tst-freopen64-3 \
+ tst-freopen64-4 \
tst-fseek \
tst-fwrite \
tst-fwrite-memstrm \
@@ -324,8 +327,11 @@ ifneq ($(PERL),no)
tests-special += \
$(objpfx)tst-freopen2-mem.out \
$(objpfx)tst-freopen3-mem.out \
+ $(objpfx)tst-freopen4-mem.out \
+ $(objpfx)tst-freopen5-mem.out \
$(objpfx)tst-freopen64-2-mem.out \
$(objpfx)tst-freopen64-3-mem.out \
+ $(objpfx)tst-freopen64-4-mem.out \
$(objpfx)tst-getline-enomem-mem.out \
$(objpfx)tst-getline-mem.out \
$(objpfx)tst-printf-bz18872-mem.out \
@@ -341,10 +347,16 @@ generated += \
tst-freopen2.mtrace \
tst-freopen3-mem.out \
tst-freopen3.mtrace \
+ tst-freopen4-mem.out \
+ tst-freopen4.mtrace \
+ tst-freopen5-mem.out \
+ tst-freopen5.mtrace \
tst-freopen64-2-mem.out \
tst-freopen64-2.mtrace \
tst-freopen64-3-mem.out \
tst-freopen64-3.mtrace \
+ tst-freopen64-4-mem.out \
+ tst-freopen64-4.mtrace \
tst-getline-enomem-mem.out \
tst-getline-enomem.mtrace \
tst-getline-mem.out \
@@ -476,6 +488,15 @@ tst-freopen3-ENV = \
tst-freopen64-3-ENV = \
MALLOC_TRACE=$(objpfx)tst-freopen64-3.mtrace \
LD_PRELOAD=$(common-objpfx)malloc/libc_malloc_debug.so
+tst-freopen4-ENV = \
+ MALLOC_TRACE=$(objpfx)tst-freopen4.mtrace \
+ LD_PRELOAD=$(common-objpfx)malloc/libc_malloc_debug.so
+tst-freopen64-4-ENV = \
+ MALLOC_TRACE=$(objpfx)tst-freopen64-4.mtrace \
+ LD_PRELOAD=$(common-objpfx)malloc/libc_malloc_debug.so
+tst-freopen5-ENV = \
+ MALLOC_TRACE=$(objpfx)tst-freopen5.mtrace \
+ LD_PRELOAD=$(common-objpfx)malloc/libc_malloc_debug.so
$(objpfx)tst-unbputc.out: tst-unbputc.sh $(objpfx)tst-unbputc
$(SHELL) $< $(common-objpfx) '$(test-program-prefix)'; \
new file mode 100644
@@ -0,0 +1,100 @@
+/* Test freopen in chroot.
+ Copyright (C) 2024 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 <mcheck.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <support/check.h>
+#include <support/file_contents.h>
+#include <support/namespace.h>
+#include <support/support.h>
+#include <support/temp_file.h>
+#include <support/test-driver.h>
+#include <support/xstdio.h>
+#include <support/xunistd.h>
+
+int
+do_test (void)
+{
+ mtrace ();
+ char *temp_dir = support_create_temp_directory ("tst-freopen4");
+ FILE *fp;
+ int ret;
+
+ /* These chroot tests verify that either reopening a renamed or
+ deleted file works even in the absence of /proc, or that it fails
+ (without memory leaks); thus, for example, such reopening does
+ not crash in the absence of /proc. */
+
+ support_become_root ();
+ if (!support_can_chroot ())
+ return EXIT_UNSUPPORTED;
+ xchroot (temp_dir);
+
+ /* Test freopen with NULL, renamed file. This verifies that
+ reopening succeeds (and resets the file position indicator to
+ start of file) even when the original path could no longer be
+ opened, or fails without a memory leak. (It is not possible to
+ use <support/descriptors.h> to test for file descriptor leaks
+ here, because that also depends on /proc.) */
+
+ verbose_printf ("testing freopen with NULL, renamed file\n");
+ fp = xfopen ("/file1", "w+");
+ ret = fputs ("file has been renamed", fp);
+ TEST_VERIFY (ret >= 0);
+ ret = rename ("/file1", "/file1a");
+ TEST_COMPARE (ret, 0);
+ fp = FREOPEN (NULL, "r+", fp);
+ if (fp != NULL)
+ {
+ puts ("freopen of renamed file succeeded");
+ TEST_COMPARE_FILE_STRING (fp, "file has been renamed");
+ xfclose (fp);
+ }
+ else
+ puts ("freopen of renamed file failed (OK)");
+ ret = rename ("/file1a", "/file1");
+ TEST_COMPARE (ret, 0);
+
+ /* Test freopen with NULL, deleted file. This verifies that
+ reopening succeeds (and resets the file position indicator to
+ start of file) even when the original path could no longer be
+ opened, or fails without a memory leak. */
+
+ verbose_printf ("testing freopen with NULL, deleted file\n");
+ fp = xfopen ("/file1", "r+");
+ ret = fputs ("file has now been deleted", fp);
+ TEST_VERIFY (ret >= 0);
+ ret = remove ("/file1");
+ TEST_COMPARE (ret, 0);
+ fp = FREOPEN (NULL, "r+", fp);
+ if (fp != NULL)
+ {
+ puts ("freopen of deleted file succeeded");
+ TEST_COMPARE_FILE_STRING (fp, "file has now been deleted");
+ xfclose (fp);
+ }
+ else
+ puts ("freopen of deleted file failed (OK)");
+
+ free (temp_dir);
+ return 0;
+}
+
+#include <support/test-driver.c>
new file mode 100644
@@ -0,0 +1,3 @@
+#define FREOPEN freopen
+#define OTHER_FREOPEN freopen64
+#include <tst-freopen4-main.c>
new file mode 100644
@@ -0,0 +1,144 @@
+/* Test freopen and freopen64 with large offsets.
+ Copyright (C) 2024 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 <errno.h>
+#include <mcheck.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <support/check.h>
+#include <support/descriptors.h>
+#include <support/support.h>
+#include <support/temp_file.h>
+#include <support/test-driver.h>
+#include <support/xstdio.h>
+
+#define START_TEST(DESC) \
+ do \
+ { \
+ fds = support_descriptors_list (); \
+ verbose_printf (DESC); \
+ } \
+ while (0)
+
+#define END_TEST \
+ do \
+ { \
+ support_descriptors_check (fds); \
+ support_descriptors_free (fds); \
+ } \
+ while (0)
+
+int
+do_test (void)
+{
+ mtrace ();
+ struct support_descriptors *fds;
+ FILE *fp;
+ int ret;
+
+ char *temp_dir = support_create_temp_directory ("tst-freopen5");
+ /* This file is removed at the end of each test rather than left
+ around between tests to avoid problems with subsequent tests
+ reopening it as a large (2GB + 1 byte) file. */
+ char *file1 = xasprintf ("%s/file1", temp_dir);
+
+ /* fopen with freopen64: large offsets OK. */
+ START_TEST ("testing fopen with freopen64\n");
+ fp = fopen ("/dev/null", "r");
+ TEST_VERIFY_EXIT (fp != NULL);
+ fp = freopen64 (file1, "w", fp);
+ TEST_VERIFY_EXIT (fp != NULL);
+ setbuf (fp, NULL);
+ ret = fseeko64 (fp, 1LL << 32, SEEK_SET);
+ TEST_COMPARE (ret, 0);
+ ret = fputc ('x', fp);
+ TEST_COMPARE (ret, 'x');
+ xfclose (fp);
+ ret = remove (file1);
+ TEST_COMPARE (ret, 0);
+ END_TEST;
+
+ /* fopen64 with freopen64: large offsets OK. */
+ START_TEST ("testing fopen64 with freopen64\n");
+ fp = fopen64 ("/dev/null", "r");
+ TEST_VERIFY_EXIT (fp != NULL);
+ fp = freopen64 (file1, "w", fp);
+ TEST_VERIFY_EXIT (fp != NULL);
+ setbuf (fp, NULL);
+ ret = fseeko64 (fp, 1LL << 32, SEEK_SET);
+ TEST_COMPARE (ret, 0);
+ ret = fputc ('x', fp);
+ TEST_COMPARE (ret, 'x');
+ xfclose (fp);
+ ret = remove (file1);
+ TEST_COMPARE (ret, 0);
+ END_TEST;
+
+ /* fopen with freopen: large offsets not OK on 32-bit systems. */
+ START_TEST ("testing fopen with freopen\n");
+ fp = fopen ("/dev/null", "r");
+ TEST_VERIFY_EXIT (fp != NULL);
+ fp = freopen (file1, "w", fp);
+ TEST_VERIFY_EXIT (fp != NULL);
+ setbuf (fp, NULL);
+ ret = fseeko64 (fp, 1LL << 32, SEEK_SET);
+ TEST_COMPARE (ret, 0);
+ errno = 0;
+ ret = fputc ('x', fp);
+ if (sizeof (off_t) == 4)
+ {
+ TEST_COMPARE (ret, EOF);
+ TEST_COMPARE (errno, EFBIG);
+ }
+ else
+ TEST_COMPARE (ret, 'x');
+ fclose (fp);
+ ret = remove (file1);
+ TEST_COMPARE (ret, 0);
+ END_TEST;
+
+ /* fopen64 with freopen: large offsets not OK on 32-bit systems. */
+ START_TEST ("testing fopen64 with freopen\n");
+ fp = fopen64 ("/dev/null", "r");
+ TEST_VERIFY_EXIT (fp != NULL);
+ fp = freopen (file1, "w", fp);
+ TEST_VERIFY_EXIT (fp != NULL);
+ setbuf (fp, NULL);
+ ret = fseeko64 (fp, 1LL << 32, SEEK_SET);
+ TEST_COMPARE (ret, 0);
+ errno = 0;
+ ret = fputc ('x', fp);
+ if (sizeof (off_t) == 4)
+ {
+ TEST_COMPARE (ret, EOF);
+ TEST_COMPARE (errno, EFBIG);
+ }
+ else
+ TEST_COMPARE (ret, 'x');
+ fclose (fp);
+ ret = remove (file1);
+ TEST_COMPARE (ret, 0);
+ END_TEST;
+
+ free (temp_dir);
+ free (file1);
+ return 0;
+}
+
+#include <support/test-driver.c>
new file mode 100644
@@ -0,0 +1,3 @@
+#define FREOPEN freopen64
+#define OTHER_FREOPEN freopen
+#include <tst-freopen4-main.c>