user: Please show me the C implementation that matches the assembly code listed below:

```asm
<obsolete>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %rdi,-0x38(%rbp)
  jmp    L83
L360:
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2d,%al
  jne    L31
  mov    -0x28(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  cmp    $0x2d,%al
  je     L134
L31:
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2d,%al
  je     L44
  jmp    L83
L44:
  mov    -0x28(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  cmp    $0x6f,%eax
  je     L314
  cmp    $0x6f,%eax
  jg     L83
  cmp    $0x61,%eax
  je     L267
  cmp    $0x6a,%eax
  je     L336
  jmp    L83
L267:
  mov    -0x28(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L83
  mov    -0x38(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%rax
  test   %rax,%rax
  je     L97
  mov    -0x38(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%rax
  lea    D43(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcmp@plt>
  test   %eax,%eax
  je     L83
  mov    -0x38(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%rax
  lea    D34(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcmp@plt>
  test   %eax,%eax
  je     L83
L97:
  mov    -0x28(%rbp),%rax
  add    $0x1,%rax
  movb   $0x1,(%rax)
  lea    D15(%rip),%rax
  mov    %rax,%rdi
  call   <warnx@plt>
  jmp    L83
L336:
  mov    -0x28(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  cmp    $0x32,%eax
  je     L128
  cmp    $0x32,%eax
  jg     L100
  test   %eax,%eax
  je     L238
  cmp    $0x31,%eax
  jne    L100
  mov    -0x28(%rbp),%rax
  add    $0x3,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L250
  mov    -0x28(%rbp),%rax
  add    $0x1,%rax
  movb   $0x31,(%rax)
  mov    -0x28(%rbp),%rax
  add    $0x2,%rax
  movb   $0x0,(%rax)
  jmp    L199
L128:
  mov    -0x28(%rbp),%rax
  add    $0x3,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L154
  mov    -0x28(%rbp),%rax
  add    $0x1,%rax
  movb   $0x32,(%rax)
  mov    -0x28(%rbp),%rax
  add    $0x2,%rax
  movb   $0x0,(%rax)
  jmp    L199
L250:
  nop
  jmp    L100
L154:
  nop
L100:
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdx
  lea    D2(%rip),%rax
  mov    %rax,%rsi
  mov    $0x1,%edi
  call   <errx@plt>
  mov    $0x0,%eax
  call   <usage@plt>
  jmp    L83
L238:
  nop
L199:
  jmp    L83
L314:
  mov    -0x28(%rbp),%rax
  add    $0x2,%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L66
  jmp    L83
L66:
  mov    -0x38(%rbp),%rax
  add    $0x10,%rax
  mov    %rax,-0x30(%rbp)
  jmp    L189
L74:
  mov    -0x30(%rbp),%rax
  mov    (%rax),%rax
  movzbl (%rax),%eax
  cmp    $0x30,%al
  je     L384
  mov    -0x30(%rbp),%rax
  mov    (%rax),%rax
  movzbl (%rax),%eax
  cmp    $0x31,%al
  je     L338
  mov    -0x30(%rbp),%rax
  mov    (%rax),%rax
  movzbl (%rax),%eax
  cmp    $0x32,%al
  jne    L384
L338:
  mov    -0x30(%rbp),%rax
  mov    (%rax),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  cmp    $0x2e,%al
  jne    L384
  mov    -0x30(%rbp),%rax
  mov    (%rax),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %rax,-0x20(%rbp)
  mov    -0x20(%rbp),%rax
  lea    -0x2(%rax),%rbx
  mov    -0x30(%rbp),%rax
  mov    (%rax),%rax
  add    $0x2,%rax
  lea    D27(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strspn@plt>
  cmp    %rax,%rbx
  jne    L257
  mov    -0x20(%rbp),%rax
  add    $0x3,%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,-0x18(%rbp)
  cmpq   $0x0,-0x18(%rbp)
  jne    L320
  mov    $0x0,%esi
  mov    $0x1,%edi
  call   <err@plt>
L320:
  mov    -0x18(%rbp),%rax
  movb   $0x2d,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x1,%rax
  movb   $0x6f,(%rax)
  mov    -0x20(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    -0x30(%rbp),%rax
  mov    (%rax),%rax
  mov    -0x18(%rbp),%rcx
  add    $0x2,%rcx
  mov    %rax,%rsi
  mov    %rcx,%rdi
  call   <memmove@plt>
  mov    -0x30(%rbp),%rax
  mov    -0x18(%rbp),%rdx
  mov    %rdx,(%rax)
  addq   $0x8,-0x30(%rbp)
L189:
  mov    -0x30(%rbp),%rax
  mov    (%rax),%rax
  test   %rax,%rax
  jne    L74
  jmp    L384
L257:
  nop
L384:
  mov    -0x30(%rbp),%rax
  sub    $0x8,%rax
  mov    %rax,-0x38(%rbp)
  nop
L83:
  addq   $0x8,-0x38(%rbp)
  mov    -0x38(%rbp),%rax
  mov    (%rax),%rax
  mov    %rax,-0x28(%rbp)
  cmpq   $0x0,-0x28(%rbp)
  jne    L360
  jmp    L61
L134:
  nop
L61:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

tool_calls: name: read_data
arguments: data_tag: D43
datatype: string
name: read_data
arguments: data_tag: D34
datatype: string
name: read_data
arguments: data_tag: D15
datatype: string
name: read_data
arguments: data_tag: D2
datatype: string
name: read_data
arguments: data_tag: D27
datatype: string

tool: D43: 1

tool: D34: 2

tool: D15: -a option used without an argument; reverting to historical behavior

tool: D2: illegal option -- %s

tool: D27: 0123456789

assistant: ```c
void obsolete(char **argv) {
  size_t len;
  char **p, *ap, *t;
  while ((ap = *++argv) != NULL) {
    if (ap[0] == '-' && ap[1] == '-')
      return;
    if (ap[0] != '-')
      continue;
    switch (ap[1]) {
    case 'a':
      if (ap[2] == '\0' && (argv[1] == NULL || (strcmp(argv[1], "1") != 0 && strcmp(argv[1], "2") != 0))) {
        ap[1] = '\01';
        warnx("-a option used without an argument; "
              "reverting to historical behavior");
      }
      break;
    case 'j':
      switch (ap[2]) {
      case '1':
        if (ap[3] != '\0')
          goto jbad;
        ap[1] = '1';
        ap[2] = '\0';
        break;
      case '2':
        if (ap[3] != '\0')
          goto jbad;
        ap[1] = '2';
        ap[2] = '\0';
        break;
      case '\0':
        break;
      default:
      jbad:
        errx(1, "illegal option -- %s", ap);
        usage();
      }
      break;
    case 'o':
      if (ap[2] != '\0')
        break;
      for (p = argv + 2; *p; ++p) {
        if (p[0][0] == '0' || ((p[0][0] != '1' && p[0][0] != '2') || p[0][1] != '.'))
          break;
        len = strlen(*p);
        if (len - 2 != strspn(*p + 2, "0123456789"))
          break;
        if ((t = malloc(len + 3)) == NULL)
          err(1, NULL);
        t[0] = '-';
        t[1] = 'o';
        memmove(t + 2, *p, len + 1);
        *p = t;
      }
      argv = p - 1;
      break;
    }
  }
}
```