/*
* 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>
* 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;
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;
+ disk_hdr.chunk_size = cpu_to_le32(hdr->chunk_size);
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);
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));
}
-void
-set_wim_hdr_cflags(enum wimlib_compression_type ctype, struct wim_header *hdr)
-{
- hdr->flags &= ~(WIM_HDR_FLAG_COMPRESSION |
- WIM_HDR_FLAG_COMPRESS_RESERVED |
- WIM_HDR_FLAG_COMPRESS_XPRESS |
- WIM_HDR_FLAG_COMPRESS_LZX |
- WIM_HDR_FLAG_COMPRESS_LZMS |
- WIM_HDR_FLAG_COMPRESS_XPRESS_2);
- switch (ctype) {
- case WIMLIB_COMPRESSION_TYPE_NONE:
- return;
- case WIMLIB_COMPRESSION_TYPE_XPRESS:
- hdr->flags |= WIM_HDR_FLAG_COMPRESSION | WIM_HDR_FLAG_COMPRESS_XPRESS;
- return;
- case WIMLIB_COMPRESSION_TYPE_LZX:
- hdr->flags |= WIM_HDR_FLAG_COMPRESSION | WIM_HDR_FLAG_COMPRESS_LZX;
- return;
- case WIMLIB_COMPRESSION_TYPE_LZMS:
- hdr->flags |= WIM_HDR_FLAG_COMPRESSION | WIM_HDR_FLAG_COMPRESS_LZMS;
- return;
- }
- wimlib_assert(0);
-}
-
-/* Initialize the header for a WIM file. */
-void
-init_wim_header(struct wim_header *hdr,
- enum wimlib_compression_type 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;
- set_wim_hdr_cflags(ctype, hdr);
- hdr->chunk_size = chunk_size;
- hdr->total_parts = 1;
- hdr->part_number = 1;
- randomize_byte_array(hdr->guid, sizeof(hdr->guid));
-}
-
static const struct {
u32 flag;
const char *name;
{
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);