/*
* header.c
*
- * Read, write, or create a WIM header.
+ * Read, write, or print a WIM header.
*/
/*
- * Copyright (C) 2012, 2013 Eric Biggers
+ * Copyright (C) 2012, 2013, 2015 Eric Biggers
*
* 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
# include "config.h"
#endif
+#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
BUILD_BUG_ON(sizeof(struct wim_header_disk) != WIM_HEADER_DISK_SIZE);
- DEBUG("Reading WIM header from \"%"TS"\"", filename);
-
ret = full_read(in_fd, &disk_hdr, sizeof(disk_hdr));
if (ret)
goto read_error;
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_GUID_LEN);
+ copy_guid(hdr->guid, disk_hdr.guid);
hdr->part_number = le16_to_cpu(disk_hdr.part_number);
hdr->total_parts = le16_to_cpu(disk_hdr.total_parts);
hdr->image_count = le32_to_cpu(disk_hdr.image_count);
- DEBUG("part_number = %u, total_parts = %u, image_count = %u",
- hdr->part_number, hdr->total_parts, hdr->image_count);
-
if (unlikely(hdr->image_count > MAX_IMAGES)) {
ERROR("\"%"TS"\": Invalid image count (%u)",
filename, hdr->image_count);
* specified is the current one, the position is advanced by the size of the
* header. */
int
-write_wim_header_at_offset(const struct wim_header *hdr, struct filedes *out_fd,
- off_t offset)
+write_wim_header(const struct wim_header *hdr, struct filedes *out_fd,
+ off_t offset)
{
struct wim_header_disk disk_hdr _aligned_attribute(8);
int ret;
- DEBUG("Writing %sWIM header at offset %"PRIu64,
- ((hdr->magic == PWM_MAGIC) ? "pipable " : ""),
- offset);
-
disk_hdr.magic = cpu_to_le64(hdr->magic);
disk_hdr.hdr_size = cpu_to_le32(sizeof(struct wim_header_disk));
disk_hdr.wim_version = cpu_to_le32(hdr->wim_version);
disk_hdr.wim_flags = cpu_to_le32(hdr->flags);
- if (hdr->flags & WIM_HDR_FLAG_COMPRESSION)
- disk_hdr.chunk_size = cpu_to_le32(hdr->chunk_size);
- else
- disk_hdr.chunk_size = 0;
- memcpy(disk_hdr.guid, hdr->guid, WIM_GUID_LEN);
-
+ disk_hdr.chunk_size = cpu_to_le32(hdr->chunk_size);
+ copy_guid(disk_hdr.guid, hdr->guid);
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);
return ret;
}
-/* Writes the header for a WIM file at the output file descriptor's current
- * offset. */
-int
-write_wim_header(const struct wim_header *hdr, struct filedes *out_fd)
-{
- return write_wim_header_at_offset(hdr, out_fd, out_fd->offset);
-}
-
/* Update just the wim_flags field. */
int
write_wim_header_flags(u32 hdr_flags, struct filedes *out_fd)
offsetof(struct wim_header_disk, wim_flags));
}
-int
-set_wim_hdr_cflags(int ctype, struct wim_header *hdr)
-{
- hdr->flags &= ~(WIM_HDR_FLAG_COMPRESSION |
- WIM_HDR_FLAG_COMPRESS_LZX |
- WIM_HDR_FLAG_COMPRESS_RESERVED |
- WIM_HDR_FLAG_COMPRESS_XPRESS |
- WIM_HDR_FLAG_COMPRESS_LZMS |
- WIM_HDR_FLAG_COMPRESS_XPRESS_2);
- switch (ctype) {
-
- case WIMLIB_COMPRESSION_TYPE_NONE:
- return 0;
-
- case WIMLIB_COMPRESSION_TYPE_LZX:
- hdr->flags |= WIM_HDR_FLAG_COMPRESSION | WIM_HDR_FLAG_COMPRESS_LZX;
- return 0;
-
- case WIMLIB_COMPRESSION_TYPE_XPRESS:
- hdr->flags |= WIM_HDR_FLAG_COMPRESSION | WIM_HDR_FLAG_COMPRESS_XPRESS;
- return 0;
-
- case WIMLIB_COMPRESSION_TYPE_LZMS:
- hdr->flags |= WIM_HDR_FLAG_COMPRESSION | WIM_HDR_FLAG_COMPRESS_LZMS;
- return 0;
-
- default:
- return WIMLIB_ERR_INVALID_COMPRESSION_TYPE;
- }
-}
-
-/*
- * Initializes the header for a WIM file.
- */
-int
-init_wim_header(struct wim_header *hdr, int ctype, u32 chunk_size)
-{
- memset(hdr, 0, sizeof(struct wim_header));
- hdr->magic = WIM_MAGIC;
-
- if (ctype == WIMLIB_COMPRESSION_TYPE_LZMS)
- hdr->wim_version = WIM_VERSION_SOLID;
- else
- hdr->wim_version = WIM_VERSION_DEFAULT;
- if (set_wim_hdr_cflags(ctype, hdr)) {
- ERROR("Invalid compression type specified (%d)", ctype);
- return WIMLIB_ERR_INVALID_COMPRESSION_TYPE;
- }
- hdr->chunk_size = chunk_size;
- hdr->total_parts = 1;
- hdr->part_number = 1;
- randomize_byte_array(hdr->guid, sizeof(hdr->guid));
- return 0;
-}
-
-struct hdr_flag {
+static const struct {
u32 flag;
const char *name;
-};
-struct hdr_flag hdr_flags[] = {
+} hdr_flags[] = {
{WIM_HDR_FLAG_RESERVED, "RESERVED"},
{WIM_HDR_FLAG_COMPRESSION, "COMPRESSION"},
{WIM_HDR_FLAG_READONLY, "READONLY"},
{
const struct wim_header *hdr = &wim->hdr;
- tprintf(T("Magic Characters = MSWIM\\000\\000\\000\n"));
+ tprintf(T("Magic Characters = "));
+ for (int i = 0; i < sizeof(hdr->magic); i++) {
+ tchar c = (u8)(hdr->magic >> ((8 * i)));
+ if (istalpha(c))
+ tputchar(c);
+ else
+ tprintf(T("\\%o"), c);
+ }
+ tputchar(T('\n'));
tprintf(T("Header Size = %u\n"), WIM_HEADER_DISK_SIZE);
tprintf(T("Version = 0x%x\n"), hdr->wim_version);
tprintf(T("Chunk Size = %u\n"), hdr->chunk_size);
tfputs (T("GUID = "), stdout);
- print_byte_field(hdr->guid, WIM_GUID_LEN, stdout);
+ print_byte_field(hdr->guid, GUID_SIZE, 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("Blob Table Size = %"PRIu64"\n"),
+ tprintf(T("Blob Table Size = %"PRIu64"\n"),
(u64)hdr->blob_table_reshdr.size_in_wim);
- tprintf(T("Blob Table Flags = 0x%hhx\n"),
+ tprintf(T("Blob Table Flags = 0x%hhx\n"),
(u8)hdr->blob_table_reshdr.flags);
- tprintf(T("Blob Table Offset = %"PRIu64"\n"),
+ tprintf(T("Blob Table Offset = %"PRIu64"\n"),
hdr->blob_table_reshdr.offset_in_wim);
- tprintf(T("Blob Table Original_size = %"PRIu64"\n"),
+ 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);
git://wimlib.net / wimlib / blobdiff