Revision d5249393 block.c
| b/block.c | ||
|---|---|---|
| 71 | 71 |
return drv->bdrv_create(filename, size_in_sectors, backing_file, flags); |
| 72 | 72 |
} |
| 73 | 73 |
|
| 74 |
/* XXX: race condition possible */ |
|
| 74 |
#ifdef _WIN32 |
|
| 75 |
static void get_tmp_filename(char *filename, int size) |
|
| 76 |
{
|
|
| 77 |
/* XXX: find a better function */ |
|
| 78 |
tmpnam(filename); |
|
| 79 |
} |
|
| 80 |
#else |
|
| 75 | 81 |
static void get_tmp_filename(char *filename, int size) |
| 76 | 82 |
{
|
| 77 | 83 |
int fd; |
| 84 |
/* XXX: race condition possible */ |
|
| 78 | 85 |
pstrcpy(filename, size, "/tmp/vl.XXXXXX"); |
| 79 | 86 |
fd = mkstemp(filename); |
| 80 | 87 |
close(fd); |
| 81 | 88 |
} |
| 89 |
#endif |
|
| 82 | 90 |
|
| 83 | 91 |
static BlockDriver *find_image_format(const char *filename) |
| 84 | 92 |
{
|
| ... | ... | |
| 514 | 522 |
return -1; |
| 515 | 523 |
bs->read_only = 1; |
| 516 | 524 |
} |
| 517 |
size = lseek64(fd, 0, SEEK_END);
|
|
| 525 |
size = lseek(fd, 0, SEEK_END); |
|
| 518 | 526 |
bs->total_sectors = size / 512; |
| 519 | 527 |
s->fd = fd; |
| 520 | 528 |
return 0; |
| ... | ... | |
| 526 | 534 |
BDRVRawState *s = bs->opaque; |
| 527 | 535 |
int ret; |
| 528 | 536 |
|
| 529 |
lseek64(s->fd, sector_num * 512, SEEK_SET);
|
|
| 537 |
lseek(s->fd, sector_num * 512, SEEK_SET); |
|
| 530 | 538 |
ret = read(s->fd, buf, nb_sectors * 512); |
| 531 | 539 |
if (ret != nb_sectors * 512) |
| 532 | 540 |
return -1; |
| ... | ... | |
| 539 | 547 |
BDRVRawState *s = bs->opaque; |
| 540 | 548 |
int ret; |
| 541 | 549 |
|
| 542 |
lseek64(s->fd, sector_num * 512, SEEK_SET);
|
|
| 550 |
lseek(s->fd, sector_num * 512, SEEK_SET); |
|
| 543 | 551 |
ret = write(s->fd, buf, nb_sectors * 512); |
| 544 | 552 |
if (ret != nb_sectors * 512) |
| 545 | 553 |
return -1; |
| ... | ... | |
| 564 | 572 |
0644); |
| 565 | 573 |
if (fd < 0) |
| 566 | 574 |
return -EIO; |
| 567 |
ftruncate64(fd, total_size * 512);
|
|
| 575 |
ftruncate(fd, total_size * 512); |
|
| 568 | 576 |
close(fd); |
| 569 | 577 |
return 0; |
| 570 | 578 |
} |
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