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-rw-r--r--Utilities/cmlibarchive/libarchive/test/test_write_disk_sparse.c280
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diff --git a/Utilities/cmlibarchive/libarchive/test/test_write_disk_sparse.c b/Utilities/cmlibarchive/libarchive/test/test_write_disk_sparse.c
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+/*-
+ * Copyright (c) 2003-2007 Tim Kientzle
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "test.h"
+__FBSDID("$FreeBSD$");
+
+/*
+ * Write a file using archive_write_data call, read the file
+ * back and verify the contents. The data written includes large
+ * blocks of nulls, so it should exercise the sparsification logic
+ * if ARCHIVE_EXTRACT_SPARSE is enabled.
+ */
+static void
+verify_write_data(struct archive *a, int sparse)
+{
+ static const char data[]="abcdefghijklmnopqrstuvwxyz";
+ struct stat st;
+ struct archive_entry *ae;
+ size_t buff_size = 64 * 1024;
+ char *buff, *p;
+ const char *msg = sparse ? "sparse" : "non-sparse";
+ FILE *f;
+
+ buff = malloc(buff_size);
+ assert(buff != NULL);
+
+ ae = archive_entry_new();
+ assert(ae != NULL);
+ archive_entry_set_size(ae, 8 * buff_size);
+ archive_entry_set_pathname(ae, "test_write_data");
+ archive_entry_set_mode(ae, AE_IFREG | 0755);
+ assertEqualIntA(a, 0, archive_write_header(a, ae));
+
+ /* Use archive_write_data() to write three relatively sparse blocks. */
+
+ /* First has non-null data at beginning. */
+ memset(buff, 0, buff_size);
+ memcpy(buff, data, sizeof(data));
+ failure("%s", msg);
+ assertEqualInt(buff_size, archive_write_data(a, buff, buff_size));
+
+ /* Second has non-null data in the middle. */
+ memset(buff, 0, buff_size);
+ memcpy(buff + buff_size / 2 - 3, data, sizeof(data));
+ failure("%s", msg);
+ assertEqualInt(buff_size, archive_write_data(a, buff, buff_size));
+
+ /* Third has non-null data at the end. */
+ memset(buff, 0, buff_size);
+ memcpy(buff + buff_size - sizeof(data), data, sizeof(data));
+ failure("%s", msg);
+ assertEqualInt(buff_size, archive_write_data(a, buff, buff_size));
+
+ failure("%s", msg);
+ assertEqualIntA(a, 0, archive_write_finish_entry(a));
+
+ /* Test the entry on disk. */
+ assert(0 == stat(archive_entry_pathname(ae), &st));
+ assertEqualInt(st.st_size, 8 * buff_size);
+ f = fopen(archive_entry_pathname(ae), "rb");
+ if (!assert(f != NULL))
+ return;
+
+ /* Check first block. */
+ assertEqualInt(buff_size, fread(buff, 1, buff_size, f));
+ failure("%s", msg);
+ assertEqualMem(buff, data, sizeof(data));
+ for (p = buff + sizeof(data); p < buff + buff_size; ++p) {
+ failure("offset: %d, %s", (int)(p - buff), msg);
+ if (!assertEqualInt(0, *p))
+ break;
+ }
+
+ /* Check second block. */
+ assertEqualInt(buff_size, fread(buff, 1, buff_size, f));
+ for (p = buff; p < buff + buff_size; ++p) {
+ failure("offset: %d, %s", (int)(p - buff), msg);
+ if (p == buff + buff_size / 2 - 3) {
+ assertEqualMem(p, data, sizeof(data));
+ p += sizeof(data);
+ } else if (!assertEqualInt(0, *p))
+ break;
+ }
+
+ /* Check third block. */
+ assertEqualInt(buff_size, fread(buff, 1, buff_size, f));
+ for (p = buff; p < buff + buff_size - sizeof(data); ++p) {
+ failure("offset: %d, %s", (int)(p - buff), msg);
+ if (!assertEqualInt(0, *p))
+ break;
+ }
+ failure("%s", msg);
+ assertEqualMem(buff + buff_size - sizeof(data), data, sizeof(data));
+
+ /* XXX more XXX */
+
+ assertEqualInt(0, fclose(f));
+ archive_entry_free(ae);
+ free(buff);
+}
+
+/*
+ * As above, but using the archive_write_data_block() call.
+ */
+static void
+verify_write_data_block(struct archive *a, int sparse)
+{
+ static const char data[]="abcdefghijklmnopqrstuvwxyz";
+ struct stat st;
+ struct archive_entry *ae;
+ size_t buff_size = 64 * 1024;
+ char *buff, *p;
+ const char *msg = sparse ? "sparse" : "non-sparse";
+ FILE *f;
+
+ buff = malloc(buff_size);
+ assert(buff != NULL);
+
+ ae = archive_entry_new();
+ assert(ae != NULL);
+ archive_entry_set_size(ae, 8 * buff_size);
+ archive_entry_set_pathname(ae, "test_write_data_block");
+ archive_entry_set_mode(ae, AE_IFREG | 0755);
+ assertEqualIntA(a, 0, archive_write_header(a, ae));
+
+ /* Use archive_write_data_block() to write three
+ relatively sparse blocks. */
+
+ /* First has non-null data at beginning. */
+ memset(buff, 0, buff_size);
+ memcpy(buff, data, sizeof(data));
+ failure("%s", msg);
+ assertEqualInt(ARCHIVE_OK,
+ archive_write_data_block(a, buff, buff_size, 100));
+
+ /* Second has non-null data in the middle. */
+ memset(buff, 0, buff_size);
+ memcpy(buff + buff_size / 2 - 3, data, sizeof(data));
+ failure("%s", msg);
+ assertEqualInt(ARCHIVE_OK,
+ archive_write_data_block(a, buff, buff_size, buff_size + 200));
+
+ /* Third has non-null data at the end. */
+ memset(buff, 0, buff_size);
+ memcpy(buff + buff_size - sizeof(data), data, sizeof(data));
+ failure("%s", msg);
+ assertEqualInt(ARCHIVE_OK,
+ archive_write_data_block(a, buff, buff_size, buff_size * 2 + 300));
+
+ failure("%s", msg);
+ assertEqualIntA(a, 0, archive_write_finish_entry(a));
+
+ /* Test the entry on disk. */
+ assert(0 == stat(archive_entry_pathname(ae), &st));
+ assertEqualInt(st.st_size, 8 * buff_size);
+ f = fopen(archive_entry_pathname(ae), "rb");
+ if (!assert(f != NULL))
+ return;
+
+ /* Check 100-byte gap at beginning */
+ assertEqualInt(100, fread(buff, 1, 100, f));
+ failure("%s", msg);
+ for (p = buff; p < buff + 100; ++p) {
+ failure("offset: %d, %s", (int)(p - buff), msg);
+ if (!assertEqualInt(0, *p))
+ break;
+ }
+
+ /* Check first block. */
+ assertEqualInt(buff_size, fread(buff, 1, buff_size, f));
+ failure("%s", msg);
+ assertEqualMem(buff, data, sizeof(data));
+ for (p = buff + sizeof(data); p < buff + buff_size; ++p) {
+ failure("offset: %d, %s", (int)(p - buff), msg);
+ if (!assertEqualInt(0, *p))
+ break;
+ }
+
+ /* Check 100-byte gap */
+ assertEqualInt(100, fread(buff, 1, 100, f));
+ failure("%s", msg);
+ for (p = buff; p < buff + 100; ++p) {
+ failure("offset: %d, %s", (int)(p - buff), msg);
+ if (!assertEqualInt(0, *p))
+ break;
+ }
+
+ /* Check second block. */
+ assertEqualInt(buff_size, fread(buff, 1, buff_size, f));
+ for (p = buff; p < buff + buff_size; ++p) {
+ failure("offset: %d, %s", (int)(p - buff), msg);
+ if (p == buff + buff_size / 2 - 3) {
+ assertEqualMem(p, data, sizeof(data));
+ p += sizeof(data);
+ } else if (!assertEqualInt(0, *p))
+ break;
+ }
+
+ /* Check 100-byte gap */
+ assertEqualInt(100, fread(buff, 1, 100, f));
+ failure("%s", msg);
+ for (p = buff; p < buff + 100; ++p) {
+ failure("offset: %d, %s", (int)(p - buff), msg);
+ if (!assertEqualInt(0, *p))
+ break;
+ }
+
+ /* Check third block. */
+ assertEqualInt(buff_size, fread(buff, 1, buff_size, f));
+ for (p = buff; p < buff + buff_size - sizeof(data); ++p) {
+ failure("offset: %d, %s", (int)(p - buff), msg);
+ if (!assertEqualInt(0, *p))
+ break;
+ }
+ failure("%s", msg);
+ assertEqualMem(buff + buff_size - sizeof(data), data, sizeof(data));
+
+ /* Check another block size beyond last we wrote. */
+ assertEqualInt(buff_size, fread(buff, 1, buff_size, f));
+ failure("%s", msg);
+ for (p = buff; p < buff + buff_size; ++p) {
+ failure("offset: %d, %s", (int)(p - buff), msg);
+ if (!assertEqualInt(0, *p))
+ break;
+ }
+
+
+ /* XXX more XXX */
+
+ assertEqualInt(0, fclose(f));
+ free(buff);
+ archive_entry_free(ae);
+}
+
+DEFINE_TEST(test_write_disk_sparse)
+{
+ struct archive *ad;
+
+
+ /*
+ * The return values, etc, of the write data functions
+ * shouldn't change regardless of whether we've requested
+ * sparsification. (The performance and pattern of actual
+ * write calls to the disk should vary, of course, but the
+ * client program shouldn't see any difference.)
+ */
+ assert((ad = archive_write_disk_new()) != NULL);
+ archive_write_disk_set_options(ad, 0);
+ verify_write_data(ad, 0);
+ verify_write_data_block(ad, 0);
+ assertEqualInt(0, archive_write_finish(ad));
+
+ assert((ad = archive_write_disk_new()) != NULL);
+ archive_write_disk_set_options(ad, ARCHIVE_EXTRACT_SPARSE);
+ verify_write_data(ad, 1);
+ verify_write_data_block(ad, 1);
+ assertEqualInt(0, archive_write_finish(ad));
+
+}
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