mirror of
https://github.com/ceph/ceph
synced 2024-12-16 16:39:21 +00:00
36 lines
919 B
C
36 lines
919 B
C
#include <fcntl.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#include <string.h>
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#include <linux/types.h>
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#include "../../src/os/btrfs_ioctl.h"
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#include <stdio.h>
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#include <errno.h>
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int main(int argc, char **argv)
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{
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struct btrfs_ioctl_clone_range_args ca;
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int dfd;
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int r;
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if (argc < 6) {
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printf("usage: %s <srcfn> <srcoffset> <srclen> <destfn> <destoffset>\n", argv[0]);
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exit(1);
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}
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ca.src_fd = open(argv[1], O_RDONLY);
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ca.src_offset = atoi(argv[2]);
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ca.src_length = atoi(argv[3]);
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dfd = open(argv[4], O_WRONLY|O_CREAT);
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ca.dest_offset = atoi(argv[5]);
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r = ioctl(dfd, BTRFS_IOC_CLONE_RANGE, &ca);
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printf("clone_range %s %lld %lld~%lld to %s %d %lld = %d %s\n",
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argv[1], ca.src_fd,
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ca.src_offset, ca.src_length,
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argv[4], dfd,
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ca.dest_offset, r, strerror(errno));
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return r;
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}
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