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

```asm
<readtga>:
  endbr64
  push   %r15
  xor    %eax,%eax
  mov    %rcx,%r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x48,%rsp
  mov    %rsi,(%rsp)
  lea    D3(%rip),%rsi
  mov    %rdx,0x8(%rsp)
  call   <fopen@plt>
  mov    $0x1,%r9d
  test   %eax,%eax
  jne    L14
L45:
  add    $0x48,%rsp
  mov    %r9d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax,%rax,1)
L14:
  movslq %eax,%rbp
  xor    %eax,%eax
  mov    %rbp,%rdi
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  mov    %eax,%r13d
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  mov    %eax,0x10(%rsp)
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  mov    %eax,%r12d
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  mov    %eax,0x18(%rsp)
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  mov    %eax,%ebx
  xor    %eax,%eax
  call   <_IO_getc@plt>
  mov    %rbp,%rdi
  mov    %eax,%r14d
  xor    %eax,%eax
  call   <_IO_getc@plt>
  cmp    $0x2,%r13d
  jne    L8
  cmp    $0x18,%r14d
  jne    L8
  mov    %eax,0x38(%rsp)
  mov    0x10(%rsp),%eax
  shl    $0x8,%r12d
  shl    $0x8,%ebx
  or     0x18(%rsp),%ebx
  or     %r12d,%eax
  mov    %ebx,0x24(%rsp)
  mov    %eax,0x28(%rsp)
  imul   %ebx,%eax
  lea    (%rax,%rax,2),%r12d
  movslq %r12d,%r13
  mov    %r13,%rdi
  call   <malloc@plt>
  mov    %rbp,%rcx
  mov    %r13,%rdx
  mov    $0x1,%esi
  mov    %rax,(%r15)
  mov    %rax,%rdi
  xor    %eax,%eax
  call   <fread@plt>
  mov    %rbp,%rdi
  mov    %eax,0x2c(%rsp)
  xor    %eax,%eax
  call   <fclose@plt>
  mov    0x38(%rsp),%r9d
  cmp    $0x20,%r9d
  je     L100
L68:
  xor    %eax,%eax
  test   %r12d,%r12d
  jle    L69
  cs nopw 0x0(%rax,%rax,1)
L105:
  mov    (%r15),%rcx
  lea    (%rcx,%rax,1),%rdx
  movzbl 0x2(%rcx,%rax,1),%ecx
  movzbl (%rdx),%esi
  mov    %cl,(%rdx)
  mov    (%r15),%rdx
  mov    %sil,0x2(%rdx,%rax,1)
  add    $0x3,%rax
  cmp    %eax,%r12d
  jg     L105
L69:
  mov    (%rsp),%rax
  mov    0x28(%rsp),%ebx
  xor    %r9d,%r9d
  cmp    %r12d,0x2c(%rsp)
  mov    %ebx,(%rax)
  mov    0x8(%rsp),%rax
  setne  %r9b
  mov    0x24(%rsp),%ebx
  shl    $0x2,%r9d
  mov    %ebx,(%rax)
  jmp    L45
  nopl   0x0(%rax)
L8:
  mov    %rbp,%rdi
  xor    %eax,%eax
  call   <fclose@plt>
  mov    $0x2,%r9d
  jmp    L45
  nopl   (%rax)
L100:
  mov    0x28(%rsp),%eax
  lea    (%rax,%rax,2),%r13d
  movslq %r13d,%r14
  mov    %r14,%rdi
  call   <malloc@plt>
  mov    0x24(%rsp),%esi
  mov    %rax,%rbx
  mov    %esi,%eax
  shr    $0x1f,%eax
  add    %esi,%eax
  sar    %eax
  mov    %eax,0x38(%rsp)
  cmp    $0x1,%esi
  jle    L30
  mov    %r13d,%eax
  xor    %ecx,%ecx
  xor    %r8d,%r8d
  mov    %r12d,0x3c(%rsp)
  neg    %eax
  mov    %r14,%r12
  mov    %r8d,%r14d
  cltq
  mov    %rax,0x30(%rsp)
  mov    0x24(%rsp),%eax
  lea    -0x1(%rax),%ebp
  imul   %r13d,%ebp
  mov    %rcx,%r13
  movslq %ebp,%rbp
  nopl   (%rax)
L77:
  mov    (%r15),%r9
  mov    %r12,%rdx
  mov    %rbx,%rdi
  add    $0x1,%r14d
  lea    (%r9,%r13,1),%r10
  mov    %r9,0x18(%rsp)
  add    %r12,%r13
  mov    %r10,%rsi
  mov    %r10,0x10(%rsp)
  call   <memcpy@plt>
  mov    0x18(%rsp),%r9
  mov    0x10(%rsp),%rdi
  mov    %r12,%rdx
  lea    (%r9,%rbp,1),%rsi
  call   <memcpy@plt>
  mov    (%r15),%rdi
  mov    %r12,%rdx
  mov    %rbx,%rsi
  add    %rbp,%rdi
  call   <memcpy@plt>
  add    0x30(%rsp),%rbp
  cmp    0x38(%rsp),%r14d
  jl     L77
  mov    0x3c(%rsp),%r12d
L30:
  mov    %rbx,%rdi
  call   <free@plt>
  jmp    L68
```

tool_calls: name: unpack_data
arguments: tag: D3
data_type: string

tool: D3: r

assistant: ```c
signed int readtga(char *name, signed int *xres, signed int *yres, unsigned char **imgdata) {
  signed int format;
  signed int width;
  signed int height;
  signed int w1;
  signed int w2;
  signed int h1;
  signed int h2;
  signed int depth;
  signed int flags;
  signed int imgsize;
  signed int bytesread;
  signed int i;
  signed int tmp;
  struct _IO_FILE$link43 *ifp;
  ifp = fopen(name, "r");
  if (ifp == ((struct _IO_FILE$link43 *)((void *)0)))
    return 1;
  _IO_getc(ifp);
  _IO_getc(ifp);
  format = _IO_getc(ifp);
  _IO_getc(ifp);
  _IO_getc(ifp);
  _IO_getc(ifp);
  _IO_getc(ifp);
  _IO_getc(ifp);
  _IO_getc(ifp);
  _IO_getc(ifp);
  _IO_getc(ifp);
  _IO_getc(ifp);
  w1 = _IO_getc(ifp);
  w2 = _IO_getc(ifp);
  h1 = _IO_getc(ifp);
  h2 = _IO_getc(ifp);
  depth = _IO_getc(ifp);
  flags = _IO_getc(ifp);
  if (format == 2) {
    if (depth != 24)
      goto __CPROVER_DUMP_L2;
  } else {
  __CPROVER_DUMP_L2:;
    fclose(ifp);
    return 2;
  }
  width = w2 << 8 | w1;
  height = h2 << 8 | h1;
  imgsize = 3 * width * height;
  void *return_value_malloc$1;
  return_value_malloc$1 = malloc((unsigned long int)imgsize);
  *imgdata = (unsigned char *)return_value_malloc$1;
  unsigned long int return_value_fread$2;
  return_value_fread$2 = fread((void *)*imgdata, (unsigned long int)1, (unsigned long int)imgsize, ifp);
  bytesread = (signed int)return_value_fread$2;
  fclose(ifp);
  if (flags == 32) {
    signed int rowsize = 3 * width;
    unsigned char *copytmp;
    void *return_value_malloc$3;
    return_value_malloc$3 = malloc((unsigned long int)rowsize);
    copytmp = (unsigned char *)return_value_malloc$3;
    i = 0;
    while (!(i >= height / 2)) {
      memcpy((void *)copytmp, (const void *)&(*imgdata)[(signed long int)(rowsize * i)], (unsigned long int)rowsize);
      memcpy((void *)&(*imgdata)[(signed long int)(rowsize * i)], (const void *)&(*imgdata)[(signed long int)(rowsize * ((height - 1) - i))], (unsigned long int)rowsize);
      memcpy((void *)&(*imgdata)[(signed long int)(rowsize * ((height - 1) - i))], (const void *)copytmp, (unsigned long int)rowsize);
      i = i + 1;
    }
    free((void *)copytmp);
  }
  i = 0;
  while (!(i >= imgsize)) {
    tmp = (signed int)(*imgdata)[(signed long int)i];
    (*imgdata)[(signed long int)i] = (*imgdata)[(signed long int)(i + 2)];
    (*imgdata)[(signed long int)(i + 2)] = (unsigned char)tmp;
    i = i + 3;
  }
  *xres = width;
  *yres = height;
  if (!(bytesread == imgsize))
    return 4;
  return 0;
}
```