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#ifndef __CHECKER__
#include <sys/ioctl.h>
#include <sys/mount.h>
#include "ioctl.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include "kerncompat.h"
#ifdef __CHECKER__
#define BLKGETSIZE64 0
#define BTRFS_IOC_SNAP_CREATE 0
#define BTRFS_VOL_NAME_MAX 255
struct btrfs_ioctl_vol_args { char name[BTRFS_VOL_NAME_MAX]; };
static inline int ioctl(int fd, int define, void *arg) { return 0; }
#endif
void print_usage(void)
{
printf("usage: btrfsctl [ -s snapshot_name ] dir\n");
exit(1);
}
int main(int ac, char **av)
{
char *fname;
int fd;
int ret;
struct btrfs_ioctl_vol_args args;
char *name;
int i;
for (i = 1; i < ac - 1; i++) {
if (strcmp(av[i], "-s") == 0) {
if (i + 1 >= ac - 1) {
fprintf(stderr, "-s requires an arg");
print_usage();
}
name = av[i + 1];
if (strlen(name) >= BTRFS_VOL_NAME_MAX) {
fprintf(stderr, "snapshot name is too long\n");
exit(1);
}
}
}
fname = av[ac - 1];
printf("fname is %s\n", fname);
fd = open(fname, O_RDWR);
if (fd < 0) {
perror("open");
exit(1);
}
strcpy(args.name, name);
ret = ioctl(fd, BTRFS_IOC_SNAP_CREATE, &args);
printf("ioctl returns %d\n", ret);
return 0;
}
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