diff options
Diffstat (limited to 'block.c')
-rw-r--r-- | block.c | 54 |
1 files changed, 27 insertions, 27 deletions
@@ -21,29 +21,11 @@ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ -#include <stdlib.h> -#include <stdio.h> -#include <stdarg.h> -#include <string.h> -#include <getopt.h> -#include <inttypes.h> -#include <unistd.h> -#include <sys/mman.h> -#include <fcntl.h> -#include <signal.h> -#include <time.h> -#include <sys/time.h> -#include <malloc.h> -#include <termios.h> -#include <sys/poll.h> -#include <errno.h> -#include <sys/wait.h> -#include <netinet/in.h> - #include "vl.h" -#define NO_THUNK_TYPE_SIZE -#include "thunk.h" +#ifndef _WIN32 +#include <sys/mman.h> +#endif #include "cow.h" @@ -97,11 +79,14 @@ BlockDriverState *bdrv_new(const char *device_name) int bdrv_open(BlockDriverState *bs, const char *filename, int snapshot) { - int fd, cow_fd; + int fd; int64_t size; - char template[] = "/tmp/vl.XXXXXX"; struct cow_header_v2 cow_header; +#ifndef _WIN32 + char template[] = "/tmp/vl.XXXXXX"; + int cow_fd; struct stat st; +#endif bs->read_only = 0; bs->fd = -1; @@ -110,10 +95,18 @@ int bdrv_open(BlockDriverState *bs, const char *filename, int snapshot) strcpy(bs->filename, filename); /* open standard HD image */ +#ifdef _WIN32 + fd = open(filename, O_RDWR | O_BINARY); +#else fd = open(filename, O_RDWR | O_LARGEFILE); +#endif if (fd < 0) { /* read only image on disk */ +#ifdef _WIN32 + fd = open(filename, O_RDONLY | O_BINARY); +#else fd = open(filename, O_RDONLY | O_LARGEFILE); +#endif if (fd < 0) { perror(filename); goto fail; @@ -128,8 +121,9 @@ int bdrv_open(BlockDriverState *bs, const char *filename, int snapshot) fprintf(stderr, "%s: could not read header\n", filename); goto fail; } - if (cow_header.magic == htonl(COW_MAGIC) && - cow_header.version == htonl(COW_VERSION)) { +#ifndef _WIN32 + if (be32_to_cpu(cow_header.magic) == COW_MAGIC && + be32_to_cpu(cow_header.version) == COW_VERSION) { /* cow image found */ size = cow_header.size; #ifndef WORDS_BIGENDIAN @@ -144,7 +138,7 @@ int bdrv_open(BlockDriverState *bs, const char *filename, int snapshot) fprintf(stderr, "%s: could not find original disk image '%s'\n", filename, cow_header.backing_file); goto fail; } - if (st.st_mtime != htonl(cow_header.mtime)) { + if (st.st_mtime != be32_to_cpu(cow_header.mtime)) { fprintf(stderr, "%s: original raw disk image '%s' does not match saved timestamp\n", filename, cow_header.backing_file); goto fail; } @@ -164,13 +158,16 @@ int bdrv_open(BlockDriverState *bs, const char *filename, int snapshot) bs->cow_bitmap = bs->cow_bitmap_addr + sizeof(cow_header); bs->cow_sectors_offset = (bs->cow_bitmap_size + 511) & ~511; snapshot = 0; - } else { + } else +#endif + { /* standard raw image */ size = lseek64(fd, 0, SEEK_END); bs->total_sectors = size / 512; bs->fd = fd; } +#ifndef _WIN32 if (snapshot) { /* create a temporary COW file */ cow_fd = mkstemp(template); @@ -190,6 +187,7 @@ int bdrv_open(BlockDriverState *bs, const char *filename, int snapshot) bs->cow_bitmap = bs->cow_bitmap_addr; bs->cow_sectors_offset = 0; } +#endif bs->inserted = 1; @@ -206,9 +204,11 @@ int bdrv_open(BlockDriverState *bs, const char *filename, int snapshot) void bdrv_close(BlockDriverState *bs) { if (bs->inserted) { +#ifndef _WIN32 /* we unmap the mapping so that it is written to the COW file */ if (bs->cow_bitmap_addr) munmap(bs->cow_bitmap_addr, bs->cow_bitmap_size); +#endif if (bs->cow_fd >= 0) close(bs->cow_fd); if (bs->fd >= 0) |