user: What would the C source look like for the assembly code provided here:

```asm
<stime_arg1>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,%rbx
  mov    %rsi,%r13
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  mov    $0x0,%edi
  call   <time@plt>
  mov    %eax,0x4(%rsp)
  lea    0x4(%rsp),%rdi
  call   <localtime@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L7
L56:
  mov    $0x2e,%esi
  mov    %rbx,%rdi
  call   <strchr@plt>
  mov    %rax,%r12
  test   %rax,%rax
  je     L36
  lea    0x1(%rax),%rdi
  call   <strlen@plt>
  cmp    $0x2,%eax
  jne    L98
  movb   $0x0,(%r12)
  movsbl 0x1(%r12),%eax
  lea    0x10(%rax,%rax,4),%eax
  movzbl 0x2(%r12),%edx
  lea    -0x30(%rdx,%rax,2),%eax
  jmp    L50
L7:
  lea    D7(%rip),%rsi
  mov    $0x1,%edi
  call   <err@plt>
  jmp    L56
L36:
  mov    $0x0,%eax
L50:
  mov    %al,0x0(%rbp)
  mov    %rbx,%rdi
  call   <strlen@plt>
  cmp    $0xa,%eax
  je     L62
  cmp    $0xc,%eax
  je     L106
  cmp    $0x8,%eax
  je     L115
L98:
  lea    D19(%rip),%rsi
  mov    $0x1,%edi
  call   <errx@plt>
L33:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L55
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L62:
  movsbl (%rbx),%eax
  lea    -0xf0(%rax,%rax,4),%edx
  movsbl 0x1(%rbx),%eax
  lea    -0x30(%rax,%rdx,2),%edx
  add    $0x2,%rbx
  lea    0x6c(%rdx),%ecx
  lea    -0x30(%rdx),%eax
  cmp    $0x45,%edx
  cmovge %ecx,%eax
L6:
  sub    $0x6c,%eax
  mov    %al,0x1(%rbp)
L115:
  movsbl (%rbx),%eax
  lea    0x10(%rax,%rax,4),%eax
  movzbl 0x1(%rbx),%edx
  lea    -0x31(%rdx,%rax,2),%eax
  mov    %al,0x2(%rbp)
  movsbl 0x2(%rbx),%eax
  lea    0x10(%rax,%rax,4),%eax
  movzbl 0x3(%rbx),%edx
  lea    -0x30(%rdx,%rax,2),%eax
  mov    %al,0x3(%rbp)
  movsbl 0x4(%rbx),%eax
  lea    0x10(%rax,%rax,4),%eax
  movzbl 0x5(%rbx),%edx
  lea    -0x30(%rdx,%rax,2),%eax
  mov    %al,0x4(%rbp)
  movsbl 0x6(%rbx),%eax
  lea    0x10(%rax,%rax,4),%eax
  movzbl 0x7(%rbx),%edx
  lea    -0x30(%rdx,%rax,2),%eax
  mov    %al,0x5(%rbp)
  movl   $0xffffffff,0x8(%rbp)
  mov    %rbp,%rdi
  call   <mktime@plt>
  mov    %eax,0x10(%r13)
  mov    %eax,0x0(%r13)
  cmp    $0xffffffff,%eax
  je     L98
  movq   $0x0,0x18(%r13)
  movq   $0x0,0x8(%r13)
  jmp    L33
L106:
  movsbl (%rbx),%eax
  lea    0x10(%rax,%rax,4),%eax
  movzbl 0x1(%rbx),%edx
  lea    -0x30(%rdx,%rax,2),%eax
  mov    $0x64,%edx
  imul   %edx,%eax
  mov    %al,0x1(%rbp)
  movsbl 0x2(%rbx),%edx
  lea    -0xf0(%rdx,%rdx,4),%ecx
  movsbl 0x3(%rbx),%edx
  lea    -0x30(%rdx,%rcx,2),%edx
  add    $0x4,%rbx
  add    %edx,%eax
  jmp    L6
L55:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: data_tag: D7
type: string
name: read_data
arguments: data_tag: D19
type: string

tool: D7: localtime

tool: D19: out of range or illegal time specification: [[CC]YY]MMDDhhmm[.SS]

assistant: ```c
void stime_arg1(const char *arg, struct timespec *tvp) {
  time_t now;
  struct tm *t;
  int yearset;
  char *p;
  now = time(NULL);
  if ((t = localtime(&now)) == NULL)
    err(1, "localtime");
  if ((p = strchr(arg, '.')) == NULL)
    t->tm_sec = 0;
  else {
    if (strlen(p + 1) != 2)
      goto terr;
    *p++ = '\0';
    t->tm_sec = ((p)[0] - '0') * 10 + ((p)[1] - '0');
    (p) += 2;
    ;
  }
  yearset = 0;
  switch (strlen(arg)) {
  case 12:
    t->tm_year = ((arg)[0] - '0') * 10 + ((arg)[1] - '0');
    (arg) += 2;
    ;
    t->tm_year *= 100;
    yearset = 1;
  case 10:
    if (yearset) {
      yearset = ((arg)[0] - '0') * 10 + ((arg)[1] - '0');
      (arg) += 2;
      ;
      t->tm_year += yearset;
    } else {
      yearset = ((arg)[0] - '0') * 10 + ((arg)[1] - '0');
      (arg) += 2;
      ;
      if (yearset < 69)
        t->tm_year = yearset + 2000;
      else
        t->tm_year = yearset + 1900;
    }
    t->tm_year -= 1900;
  case 8:
    t->tm_mon = ((arg)[0] - '0') * 10 + ((arg)[1] - '0');
    (arg) += 2;
    ;
    --t->tm_mon;
    t->tm_mday = ((arg)[0] - '0') * 10 + ((arg)[1] - '0');
    (arg) += 2;
    ;
    t->tm_hour = ((arg)[0] - '0') * 10 + ((arg)[1] - '0');
    (arg) += 2;
    ;
    t->tm_min = ((arg)[0] - '0') * 10 + ((arg)[1] - '0');
    (arg) += 2;
    ;
    break;
  default:
    goto terr;
  }
  t->tm_isdst = -1;
  tvp[0].tv_sec = tvp[1].tv_sec = mktime(t);
  if (tvp[0].tv_sec == -1)
    goto terr;
  tvp[0].tv_nsec = tvp[1].tv_nsec = 0;
  return;
terr:
  errx(1, "out of range or illegal time specification: [[CC]YY]MMDDhhmm[.SS]");
}
```