return 0;
}
+/*
+ * This function should be only used when parsing
+ * command arg, it won't return error to it's
+ * caller and rather exit directly just like usage().
+ */
+u64 arg_strtou64(const char *str)
+{
+ u64 value;
+ char *ptr_parse_end = NULL;
+
+ value = strtoull(str, &ptr_parse_end, 0);
+ if (ptr_parse_end && *ptr_parse_end != '\0') {
+ fprintf(stderr, "ERROR: %s is not a valid numeric value.\n",
+ str);
+ exit(1);
+ }
+ /*
+ * if we pass a negative number to strtoull,
+ * it will return an unexpected number to us,
+ * so let's do the check ourselves.
+ */
+ if (str[0] == '-') {
+ fprintf(stderr, "ERROR: %s: negative value is invalid.\n",
+ str);
+ exit(1);
+ }
+ if (value == ULLONG_MAX) {
+ fprintf(stderr, "ERROR: %s is too large.\n", str);
+ exit(1);
+ }
+ return value;
+}
+
u64 parse_size(char *s)
{
int i;
int get_mountpt(char *dev, char *mntpt, size_t size);
int btrfs_scan_block_devices(int run_ioctl);
u64 parse_size(char *s);
+u64 arg_strtou64(const char *str);
int open_file_or_dir(const char *fname, DIR **dirstream);
void close_file_or_dir(int fd, DIR *dirstream);
int get_fs_info(char *path, struct btrfs_ioctl_fs_info_args *fi_args,