user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<timeparse>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x48,%rsp
  mov    %rdi,-0x48(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  mov    -0x48(%rbp),%rax
  mov    %rax,%rdi
  call   <atoi@plt>
  mov    %rax,-0x20(%rbp)
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <dbtget@plt>
  mov    %rax,-0x30(%rbp)
  cmpq   $0x0,-0x30(%rbp)
  jne    L56
  mov    $0x0,%edi
  call   <dbtgetnxt@plt>
  mov    %rax,-0x30(%rbp)
  mov    -0x30(%rbp),%rax
  mov    %rax,-0x28(%rbp)
  lea    -0x34(%rbp),%rax
  mov    $0x4,%edx
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  cmpq   $0x0,-0x30(%rbp)
  jne    L59
  mov    -0x20(%rbp),%rdx
  mov    -0x48(%rbp),%rax
  mov    %rdx,%rcx
  mov    %rax,%rdx
  lea    D6(%rip),%rax
  mov    %rax,%rsi
  mov    $0x1,%edi
  call   <error@plt>
L59:
  lea    -0x34(%rbp),%rdx
  mov    -0x48(%rbp),%rax
  lea    D41(%rip),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <strptime@plt>
  test   %eax,%eax
  jne    L72
  lea    -0x34(%rbp),%rdx
  mov    -0x48(%rbp),%rax
  lea    D53(%rip),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <strptime@plt>
  test   %eax,%eax
  jne    L72
  lea    -0x34(%rbp),%rdx
  mov    -0x48(%rbp),%rax
  lea    D3(%rip),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <strptime@plt>
  test   %eax,%eax
  jne    L72
  lea    -0x34(%rbp),%rdx
  mov    -0x48(%rbp),%rax
  lea    D26(%rip),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <strptime@plt>
  test   %eax,%eax
  jne    L72
  mov    -0x20(%rbp),%rdx
  mov    -0x48(%rbp),%rax
  mov    %rdx,%rcx
  mov    %rax,%rdx
  lea    D12(%rip),%rax
  mov    %rax,%rsi
  mov    $0x1,%edi
  call   <error@plt>
L72:
  lea    -0x34(%rbp),%rax
  mov    %rax,%rdi
  call   <mktime@plt>
  mov    %rax,-0x20(%rbp)
  jmp    L31
L5:
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <dbtgett@plt>
  sub    -0x20(%rbp),%rax
  mov    %rax,%rdx
  neg    %rdx
  cmovns %rdx,%rax
  mov    %rax,%rbx
  mov    -0x30(%rbp),%rax
  mov    %rax,%rdi
  call   <dbtgett@plt>
  sub    -0x20(%rbp),%rax
  mov    %rax,%rdx
  neg    %rdx
  cmovns %rdx,%rax
  cmp    %rax,%rbx
  jge    L31
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x30(%rbp)
L31:
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <dbtgetnxt@plt>
  mov    %rax,-0x28(%rbp)
  cmpq   $0x0,-0x28(%rbp)
  jne    L5
L56:
  mov    -0x30(%rbp),%rax
  mov    -0x18(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L44
  call   <__stack_chk_fail@plt>
L44:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: label: D6
type_guessed: string
name: extract_symbolic_data
arguments: label: D41
type_guessed: string
name: extract_symbolic_data
arguments: label: D53
type_guessed: string
name: extract_symbolic_data
arguments: label: D3
type_guessed: string
name: extract_symbolic_data
arguments: label: D26
type_guessed: string
name: extract_symbolic_data
arguments: label: D12
type_guessed: string

tool: D6: not time found: '%s' -> %li


tool: D41: %y-%m-%d %H:%M

tool: D53: %y-%m-%d

tool: D3: %y-%m

tool: D26: %y

tool: D12: time not parseable: '%s' -> %li


assistant: ```c
struct dbt *timeparse(const char *stime) {
  time_t t = atoi(stime);
  struct dbt *dt = dbtget(t);
  if (!dt) {
    struct tm tm;
    struct dbt *dti = dt = dbtgetnxt(NULL);
    memset(&tm, 0, sizeof(struct tm));
    if (!dt)
      error(1, "not time found: '%s' -> %li\n", stime, t);
    if (!strptime(stime, "%y-%m-%d %H:%M", &tm) && !strptime(stime, "%y-%m-%d", &tm) && !strptime(stime, "%y-%m", &tm) && !strptime(stime, "%y", &tm))
      error(1, "time not parseable: '%s' -> %li\n", stime, t);
    t = mktime(&tm);
    while ((dti = dbtgetnxt(dti)))
      if (labs((long)dbtgett(dti) - (long)t) < labs((long)dbtgett(dt) - (long)t))
        dt = dti;
  }
  return dt;
}
```