]> wimlib.net Git - wimlib/blobdiff - src/header.c
inode/blob cleanups
[wimlib] / src / header.c
index 0f9555195238e170aee895c640f96f9292b4cb80..21dec59a9345a55322c5a6b94cb5538827d76c4e 100644 (file)
@@ -7,27 +7,30 @@
 /*
  * Copyright (C) 2012, 2013 Eric Biggers
  *
- * This file is part of wimlib, a library for working with WIM files.
+ * This file 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 3 of the License, or (at your option) any
+ * later version.
  *
- * wimlib is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 3 of the License, or (at your option)
- * any later version.
- *
- * wimlib 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 General Public License for more
+ * This file 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 General Public License
- * along with wimlib; if not, see http://www.gnu.org/licenses/.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this file; if not, see http://www.gnu.org/licenses/.
  */
 
 #ifdef HAVE_CONFIG_H
 #  include "config.h"
 #endif
 
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
 #include "wimlib.h"
+#include "wimlib/alloca.h"
 #include "wimlib/assert.h"
 #include "wimlib/endianness.h"
 #include "wimlib/error.h"
 #include "wimlib/util.h"
 #include "wimlib/wim.h"
 
-#include <limits.h>
-#include <string.h>
-#include <unistd.h>
-#ifdef HAVE_ALLOCA_H
-#  include <alloca.h>
-#else
-#  include <stdlib.h>
-#endif
-
 /*
  * Reads the header from a WIM file.
  *
  * @wim
- *     WIM to read the header from; @wim->in_fd must be positioned at the
- *     offset at which to read the header.
+ *     WIM to read the header from @wim->in_fd must be positioned at the
+ *     beginning of the file.
  *
  * @hdr
  *     Structure to read the header into.
@@ -96,7 +90,9 @@ read_wim_header(WIMStruct *wim, struct wim_header *hdr)
                        /* Pipable WIM:  Use header at end instead, unless
                         * actually reading from a pipe.  */
                        if (!in_fd->is_pipe) {
-                               lseek(in_fd->fd, -WIM_HEADER_DISK_SIZE, SEEK_END);
+                               ret = WIMLIB_ERR_READ;
+                               if (-1 == lseek(in_fd->fd, -WIM_HEADER_DISK_SIZE, SEEK_END))
+                                       goto read_error;
                                ret = full_read(in_fd, &disk_hdr, sizeof(disk_hdr));
                                if (ret)
                                        goto read_error;
@@ -115,15 +111,16 @@ read_wim_header(WIMStruct *wim, struct wim_header *hdr)
 
        hdr->wim_version = le32_to_cpu(disk_hdr.wim_version);
        if (hdr->wim_version != WIM_VERSION_DEFAULT &&
-           hdr->wim_version != WIM_VERSION_PACKED_STREAMS)
+           hdr->wim_version != WIM_VERSION_SOLID)
        {
-               ERROR("\"%"TS"\": Unknown WIM version: %u", hdr->wim_version);
+               ERROR("\"%"TS"\": Unknown WIM version: %u",
+                     filename, hdr->wim_version);
                return WIMLIB_ERR_UNKNOWN_VERSION;
        }
 
        hdr->flags = le32_to_cpu(disk_hdr.wim_flags);
        hdr->chunk_size = le32_to_cpu(disk_hdr.chunk_size);
-       memcpy(hdr->guid, disk_hdr.guid, WIM_GID_LEN);
+       memcpy(hdr->guid, disk_hdr.guid, WIM_GUID_LEN);
        hdr->part_number = le16_to_cpu(disk_hdr.part_number);
        hdr->total_parts = le16_to_cpu(disk_hdr.total_parts);
 
@@ -140,13 +137,13 @@ read_wim_header(WIMStruct *wim, struct wim_header *hdr)
        DEBUG("part_number = %u, total_parts = %u, image_count = %u",
              hdr->part_number, hdr->total_parts, hdr->image_count);
 
-       if (hdr->image_count >= INT_MAX) {
+       if (unlikely(hdr->image_count > MAX_IMAGES)) {
                ERROR("\"%"TS"\": Invalid image count (%u)",
                      filename, hdr->image_count);
                return WIMLIB_ERR_IMAGE_COUNT;
        }
 
-       get_wim_reshdr(&disk_hdr.lookup_table_reshdr, &hdr->lookup_table_reshdr);
+       get_wim_reshdr(&disk_hdr.blob_table_reshdr, &hdr->blob_table_reshdr);
        get_wim_reshdr(&disk_hdr.xml_data_reshdr, &hdr->xml_data_reshdr);
        get_wim_reshdr(&disk_hdr.boot_metadata_reshdr, &hdr->boot_metadata_reshdr);
        hdr->boot_idx = le32_to_cpu(disk_hdr.boot_idx);
@@ -180,12 +177,12 @@ write_wim_header_at_offset(const struct wim_header *hdr, struct filedes *out_fd,
                disk_hdr.chunk_size = cpu_to_le32(hdr->chunk_size);
        else
                disk_hdr.chunk_size = 0;
-       memcpy(disk_hdr.guid, hdr->guid, WIM_GID_LEN);
+       memcpy(disk_hdr.guid, hdr->guid, WIM_GUID_LEN);
 
        disk_hdr.part_number = cpu_to_le16(hdr->part_number);
        disk_hdr.total_parts = cpu_to_le16(hdr->total_parts);
        disk_hdr.image_count = cpu_to_le32(hdr->image_count);
-       put_wim_reshdr(&hdr->lookup_table_reshdr, &disk_hdr.lookup_table_reshdr);
+       put_wim_reshdr(&hdr->blob_table_reshdr, &disk_hdr.blob_table_reshdr);
        put_wim_reshdr(&hdr->xml_data_reshdr, &disk_hdr.xml_data_reshdr);
        put_wim_reshdr(&hdr->boot_metadata_reshdr, &disk_hdr.boot_metadata_reshdr);
        disk_hdr.boot_idx = cpu_to_le32(hdr->boot_idx);
@@ -226,7 +223,8 @@ set_wim_hdr_cflags(int ctype, struct wim_header *hdr)
                        WIM_HDR_FLAG_COMPRESS_LZX |
                        WIM_HDR_FLAG_COMPRESS_RESERVED |
                        WIM_HDR_FLAG_COMPRESS_XPRESS |
-                       WIM_HDR_FLAG_COMPRESS_LZMS);
+                       WIM_HDR_FLAG_COMPRESS_LZMS |
+                       WIM_HDR_FLAG_COMPRESS_XPRESS_2);
        switch (ctype) {
 
        case WIMLIB_COMPRESSION_TYPE_NONE:
@@ -259,7 +257,7 @@ init_wim_header(struct wim_header *hdr, int ctype, u32 chunk_size)
        hdr->magic = WIM_MAGIC;
 
        if (ctype == WIMLIB_COMPRESSION_TYPE_LZMS)
-               hdr->wim_version = WIM_VERSION_PACKED_STREAMS;
+               hdr->wim_version = WIM_VERSION_SOLID;
        else
                hdr->wim_version = WIM_VERSION_DEFAULT;
        if (set_wim_hdr_cflags(ctype, hdr)) {
@@ -289,6 +287,8 @@ struct hdr_flag hdr_flags[] = {
        {WIM_HDR_FLAG_COMPRESS_RESERVED,"COMPRESS_RESERVED"},
        {WIM_HDR_FLAG_COMPRESS_LZX,     "COMPRESS_LZX"},
        {WIM_HDR_FLAG_COMPRESS_XPRESS,  "COMPRESS_XPRESS"},
+       {WIM_HDR_FLAG_COMPRESS_LZMS,    "COMPRESS_LZMS"},
+       {WIM_HDR_FLAG_COMPRESS_XPRESS_2,"COMPRESS_XPRESS_2"},
 };
 
 /* API function documented in wimlib.h  */
@@ -308,19 +308,19 @@ wimlib_print_header(const WIMStruct *wim)
 
        tprintf(T("Chunk Size                  = %u\n"), hdr->chunk_size);
        tfputs (T("GUID                        = "), stdout);
-       print_byte_field(hdr->guid, WIM_GID_LEN, stdout);
+       print_byte_field(hdr->guid, WIM_GUID_LEN, stdout);
        tputchar(T('\n'));
        tprintf(T("Part Number                 = %hu\n"), hdr->part_number);
        tprintf(T("Total Parts                 = %hu\n"), hdr->total_parts);
        tprintf(T("Image Count                 = %u\n"), hdr->image_count);
-       tprintf(T("Lookup Table Size           = %"PRIu64"\n"),
-                               (u64)hdr->lookup_table_reshdr.size_in_wim);
-       tprintf(T("Lookup Table Flags          = 0x%hhx\n"),
-                               (u8)hdr->lookup_table_reshdr.flags);
-       tprintf(T("Lookup Table Offset         = %"PRIu64"\n"),
-                               hdr->lookup_table_reshdr.offset_in_wim);
-       tprintf(T("Lookup Table Original_size  = %"PRIu64"\n"),
-                               hdr->lookup_table_reshdr.uncompressed_size);
+       tprintf(T("Blob Table Size             = %"PRIu64"\n"),
+                               (u64)hdr->blob_table_reshdr.size_in_wim);
+       tprintf(T("Blob Table Flags            = 0x%hhx\n"),
+                               (u8)hdr->blob_table_reshdr.flags);
+       tprintf(T("Blob Table Offset           = %"PRIu64"\n"),
+                               hdr->blob_table_reshdr.offset_in_wim);
+       tprintf(T("Blob Table Original_size    = %"PRIu64"\n"),
+                               hdr->blob_table_reshdr.uncompressed_size);
        tprintf(T("XML Data Size               = %"PRIu64"\n"),
                                (u64)hdr->xml_data_reshdr.size_in_wim);
        tprintf(T("XML Data Flags              = 0x%hhx\n"),