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

```asm
<shift_cipher>:
  endbr64
  push   %r14
  lea    D149(%rip),%rcx
  push   %r13
  movq   %rcx,%xmm0
  lea    D69(%rip),%rcx
  mov    %rdi,%r13
  push   %r12
  mov    %r13,%rdi
  xor    %r12d,%r12d
  push   %rbp
  push   %rbx
  sub    $0xf0,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0xe8(%rsp)
  lea    D96(%rip),%rax
  lea    0xf(%rsp),%rbp
  movq   %rax,%xmm1
  lea    D57(%rip),%rax
  punpcklqdq %xmm1,%xmm0
  movq   %rax,%xmm2
  lea    D5(%rip),%rax
  movaps %xmm0,0x10(%rsp)
  movq   %rcx,%xmm0
  movq   %rax,%xmm3
  lea    D53(%rip),%rcx
  punpcklqdq %xmm2,%xmm0
  lea    D27(%rip),%rax
  movaps %xmm0,0x20(%rsp)
  movq   %rcx,%xmm0
  movq   %rax,%xmm4
  lea    D143(%rip),%rcx
  punpcklqdq %xmm3,%xmm0
  lea    D73(%rip),%rax
  movaps %xmm0,0x30(%rsp)
  movq   %rcx,%xmm0
  movq   %rax,%xmm5
  lea    D15(%rip),%rcx
  punpcklqdq %xmm4,%xmm0
  lea    D50(%rip),%rax
  movaps %xmm0,0x40(%rsp)
  movq   %rcx,%xmm0
  movq   %rax,%xmm6
  lea    D30(%rip),%rcx
  punpcklqdq %xmm5,%xmm0
  lea    D163(%rip),%rax
  movaps %xmm0,0x50(%rsp)
  movq   %rcx,%xmm0
  movq   %rax,%xmm7
  lea    D196(%rip),%rcx
  punpcklqdq %xmm6,%xmm0
  lea    D261(%rip),%rax
  movaps %xmm0,0x60(%rsp)
  movq   %rcx,%xmm0
  movq   %rax,%xmm1
  lea    D168(%rip),%rcx
  punpcklqdq %xmm7,%xmm0
  lea    D6(%rip),%rax
  movaps %xmm0,0x70(%rsp)
  movq   %rcx,%xmm0
  movq   %rax,%xmm2
  lea    D59(%rip),%rcx
  punpcklqdq %xmm1,%xmm0
  lea    D162(%rip),%rax
  movaps %xmm0,0x80(%rsp)
  movq   %rcx,%xmm0
  lea    D58(%rip),%rcx
  movq   %rax,%xmm3
  punpcklqdq %xmm2,%xmm0
  lea    D220(%rip),%rax
  movaps %xmm0,0x90(%rsp)
  movq   %rcx,%xmm0
  lea    D140(%rip),%rcx
  movq   %rax,%xmm4
  punpcklqdq %xmm3,%xmm0
  lea    D82(%rip),%rax
  movaps %xmm0,0xa0(%rsp)
  movq   %rcx,%xmm0
  lea    D23(%rip),%rcx
  movq   %rax,%xmm5
  punpcklqdq %xmm4,%xmm0
  lea    D200(%rip),%rax
  movaps %xmm0,0xb0(%rsp)
  movq   %rcx,%xmm0
  lea    D88(%rip),%rcx
  movq   %rax,%xmm6
  punpcklqdq %xmm5,%xmm0
  movaps %xmm0,0xc0(%rsp)
  movq   %rcx,%xmm0
  punpcklqdq %xmm6,%xmm0
  movaps %xmm0,0xd0(%rsp)
  call   <strlen@plt>
  sub    $0x1,%eax
  cmp    %r12d,%eax
  jle    L6
  xchg   %ax,%ax
L49:
  movzbl 0x0(%r13,%r12,1),%eax
  mov    $0x1,%ebx
  lea    0x10(%rsp),%r14
  mov    %al,0xf(%rsp)
  jmp    L48
  cs nopw 0x0(%rax,%rax,1)
L15:
  add    $0x1,%rbx
  cmp    $0x1b,%rbx
  je     L57
L48:
  mov    -0x8(%r14,%rbx,8),%rsi
  mov    $0x1,%edx
  mov    %rbp,%rdi
  call   <strncmp@plt>
  mov    %ebx,%edx
  test   %eax,%eax
  jne    L15
  mov    %ebx,%eax
  imul   $0x4ec4ec4f,%rax,%rax
  shr    $0x23,%rax
  imul   $0x1a,%eax,%eax
  sub    %eax,%edx
  movslq %edx,%rdx
  mov    0x10(%rsp,%rdx,8),%rax
  movzbl (%rax),%eax
  mov    %al,0x0(%r13,%r12,1)
L57:
  mov    %r13,%rdi
  add    $0x1,%r12
  call   <strlen@plt>
  sub    $0x1,%eax
  cmp    %r12d,%eax
  jg     L49
L6:
  mov    0xe8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L27
  add    $0xf0,%rsp
  lea    D248(%rip),%rdi
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  jmp    10b0 <printf@plt>
L27:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: label: D149
type: string
name: disassemble_data
arguments: label: D69
type: string
name: disassemble_data
arguments: label: D96
type: string
name: disassemble_data
arguments: label: D57
type: string
name: disassemble_data
arguments: label: D5
type: string
name: disassemble_data
arguments: label: D53
type: string
name: disassemble_data
arguments: label: D27
type: string
name: disassemble_data
arguments: label: D143
type: string
name: disassemble_data
arguments: label: D73
type: string
name: disassemble_data
arguments: label: D15
type: string
name: disassemble_data
arguments: label: D50
type: string
name: disassemble_data
arguments: label: D30
type: string
name: disassemble_data
arguments: label: D163
type: string
name: disassemble_data
arguments: label: D196
type: string
name: disassemble_data
arguments: label: D261
type: string
name: disassemble_data
arguments: label: D168
type: string
name: disassemble_data
arguments: label: D6
type: string
name: disassemble_data
arguments: label: D59
type: string
name: disassemble_data
arguments: label: D162
type: string
name: disassemble_data
arguments: label: D58
type: string
name: disassemble_data
arguments: label: D220
type: string
name: disassemble_data
arguments: label: D140
type: string
name: disassemble_data
arguments: label: D82
type: string
name: disassemble_data
arguments: label: D23
type: string
name: disassemble_data
arguments: label: D200
type: string
name: disassemble_data
arguments: label: D88
type: string
name: disassemble_data
arguments: label: D248
type: string

tool: D149: a

tool: D69: c

tool: D96: b

tool: D57: d

tool: D5: f

tool: D53: e

tool: D27: h

tool: D143: g

tool: D73: j

tool: D15: i

tool: D50: l

tool: D30: k

tool: D163: n

tool: D196: m

tool: D261: p

tool: D168: o

tool: D6: r

tool: D59: q

tool: D162: t

tool: D58: s

tool: D220: v

tool: D140: u

tool: D82: x

tool: D23: w

tool: D200: z

tool: D88: y

tool: D248: 


assistant: ```c
void shift_cipher(char message[]) {
  char *letters[] = {"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"};
  int i;
  int j;
  for (j = 0; j < (strlen(message) - 1); j++) {
    char message_char = message[j];
    int shifted_found = 0;
    for (i = 0; i < 26; i++) {
      if (shifted_found)
        break;
      int result = strcmp(&message_char, letters[i]);
      if (!strncmp(&message_char, letters[i], 1)) {
        int shifted_index = (i + 1) % 26;
        message[j] = *letters[shifted_index];
        shifted_found = 1;
        break;
      } else if ((i + 1) == 26) {
      }
    }
  }
  printf("\n");
}
```