user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<omb_utils_find_and_mount>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x220,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    D44(%rip),%rax
  mov    %rax,%rdi
  call   <opendir@plt>
  mov    %rax,-0x220(%rbp)
  cmpq   $0x0,-0x220(%rbp)
  je     L31
  mov    $0x0,%eax
  call   <omb_utils_create_dir_tree@plt>
  jmp    L50
L76:
  mov    -0x218(%rbp),%rax
  mov    (%rax),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cmp    $0x4,%eax
  jne    L50
  mov    -0x218(%rbp),%rax
  mov    (%rax),%rax
  mov    $0x2,%edx
  lea    D122(%rip),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcmp@plt>
  test   %rax,%rax
  jne    L50
  mov    -0x218(%rbp),%rax
  mov    (%rax),%rdx
  lea    -0x210(%rbp),%rax
  mov    %rdx,%rcx
  lea    D44(%rip),%rdx
  lea    D94(%rip),%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  lea    -0x210(%rbp),%rax
  mov    %rax,%rdx
  lea    D33(%rip),%rax
  mov    %rax,%rsi
  mov    $0x2,%edi
  call   <omb_log@plt>
  lea    D135(%rip),%rax
  mov    %rax,%rdi
  call   <omb_utils_umount@plt>
  lea    -0x210(%rbp),%rax
  lea    D135(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <omb_utils_mount@plt>
  test   %rax,%rax
  jne    L50
  lea    -0x110(%rbp),%rax
  lea    D89(%rip),%rdx
  mov    %rdx,%rcx
  lea    D135(%rip),%rdx
  lea    D94(%rip),%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  lea    -0x110(%rbp),%rax
  mov    %rax,%rdi
  call   <omb_utils_dir_exists@plt>
  test   %rax,%rax
  je     L7
  lea    -0x210(%rbp),%rax
  mov    %rax,%rdx
  lea    D67(%rip),%rax
  mov    %rax,%rsi
  mov    $0x2,%edi
  call   <omb_log@plt>
  mov    -0x220(%rbp),%rax
  mov    %rax,%rdi
  call   <closedir@plt>
  mov    $0x0,%eax
  jmp    L30
L7:
  lea    D135(%rip),%rax
  mov    %rax,%rdi
  call   <omb_utils_umount@plt>
  cmp    $0xffffffff,%eax
  jne    L50
  lea    D135(%rip),%rax
  mov    %rax,%rdx
  lea    D115(%rip),%rax
  mov    %rax,%rsi
  mov    $0x0,%edi
  call   <omb_log@plt>
L50:
  mov    -0x220(%rbp),%rax
  mov    %rax,%rdi
  call   <readdir@plt>
  mov    %rax,-0x218(%rbp)
  cmpq   $0x0,-0x218(%rbp)
  jne    L76
  mov    -0x220(%rbp),%rax
  mov    %rax,%rdi
  call   <closedir@plt>
L31:
  mov    $0xffffffff,%eax
L30:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L9
  call   <__stack_chk_fail@plt>
L9:
  leave
  ret
```

tool_calls: name: read_data
arguments: label: D44
type_infered: string
name: read_data
arguments: label: D122
type_infered: string
name: read_data
arguments: label: D94
type_infered: string
name: read_data
arguments: label: D33
type_infered: string
name: read_data
arguments: label: D135
type_infered: string
name: read_data
arguments: label: D89
type_infered: string
name: read_data
arguments: label: D67
type_infered: string
name: read_data
arguments: label: D115
type_infered: string

tool: D44: /dev

tool: D122: sd

tool: D94: %s/%s

tool: D33: check device %s

tool: D135: /omb

tool: D89: open-multiboot

tool: D67: found data on device %s

tool: D115: cannot umount %s

assistant: ```c
int omb_utils_find_and_mount() {
  struct dirent *dir;
  DIR *fd = opendir("/dev");
  if (fd) {
    omb_utils_create_dir_tree();
    while ((dir = readdir(fd)) != NULL) {
      if (strlen(dir->d_name) == 4 && memcmp(dir->d_name, "sd", 2) == 0) {
        char device[255];
        sprintf(device, "%s/%s", "/dev", dir->d_name);
        omb_log(2, "check device %s", device);
        omb_utils_umount("/omb");
        if (omb_utils_mount(device, "/omb") == 0) {
          char datadir[255];
          sprintf(datadir, "%s/%s", "/omb", "open-multiboot");
          if (omb_utils_dir_exists(datadir)) {
            omb_log(2, "found data on device %s", device);
            closedir(fd);
            return 0;
          }
          if (omb_utils_umount("/omb") == -1)
            omb_log(0, "cannot umount %s", "/omb");
        }
      }
    }
    closedir(fd);
  }
  return -1;
}
```