diff options
| -rw-r--r-- | block/qcow.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/block/qcow.c b/block/qcow.c index 1e3e59b..003db1e 100644 --- a/block/qcow.c +++ b/block/qcow.c @@ -750,6 +750,7 @@ static int qcow_create(const char *filename, QEMUOptionParameter *options) int64_t total_size = 0; const char *backing_file = NULL; int flags = 0; + int ret; /* Read out options */ while (options && options->name) { @@ -801,17 +802,34 @@ static int qcow_create(const char *filename, QEMUOptionParameter *options) } /* write all the data */ - write(fd, &header, sizeof(header)); + ret = qemu_write_full(fd, &header, sizeof(header)); + if (ret != sizeof(header)) { + ret = -1; + goto exit; + } + if (backing_file) { - write(fd, backing_file, backing_filename_len); + ret = qemu_write_full(fd, backing_file, backing_filename_len); + if (ret != backing_filename_len) { + ret = -1; + goto exit; + } + } lseek(fd, header_size, SEEK_SET); tmp = 0; for(i = 0;i < l1_size; i++) { - write(fd, &tmp, sizeof(tmp)); + ret = qemu_write_full(fd, &tmp, sizeof(tmp)); + if (ret != sizeof(tmp)) { + ret = -1; + goto exit; + } } + + ret = 0; +exit: close(fd); - return 0; + return ret; } static int qcow_make_empty(BlockDriverState *bs) |