user: 请从给定的汇编指令推导出C源代码：

```asm
<read_profile_string>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  lea    -0x4000(%rsp),%r11
L33:
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  cmp    %r11,%rsp
  jne    L33
  sub    $0x48,%rsp
  pxor   %xmm0,%xmm0
  mov    %rdi,%r12
  mov    %rsi,%rbp
  lea    0x40(%rsp),%rdi
  mov    %rdx,%r13
  xor    %esi,%esi
  mov    $0x3ff0,%edx
  mov    %ecx,%r14d
  mov    %r8,%rbx
  mov    %fs:0x28,%rax
  mov    %rax,0x4038(%rsp)
  xor    %eax,%eax
  mov    %r9,%r15
  movaps %xmm0,0x30(%rsp)
  call   <memset@plt>
  xor    %edi,%edi
  test   %r12,%r12
  je     L85
  xor    %edi,%edi
  cmpb   $0x0,(%r12)
  setne  %dil
L85:
  call   <assert@plt>
  xor    %edi,%edi
  test   %rbp,%rbp
  je     L44
  xor    %edi,%edi
  cmpb   $0x0,0x0(%rbp)
  setne  %dil
L44:
  call   <assert@plt>
  xor    %edi,%edi
  test   %r13,%r13
  setne  %dil
  call   <assert@plt>
  xor    %edi,%edi
  test   %r14d,%r14d
  setg   %dil
  call   <assert@plt>
  xor    %edi,%edi
  test   %r15,%r15
  je     L39
  xor    %edi,%edi
  cmpb   $0x0,0x0(%rbp)
  setne  %dil
L39:
  call   <assert@plt>
  lea    0x30(%rsp),%r10
  lea    0x14(%rsp),%rdx
  mov    %r15,%rdi
  mov    %r10,%rsi
  mov    %r10,0x8(%rsp)
  call   <load_ini_file@plt>
  mov    0x8(%rsp),%r10
  test   %eax,%eax
  jne    L69
L8:
  xor    %r12d,%r12d
  test   %rbx,%rbx
  je     L88
  mov    %r14d,%edx
  mov    %rbx,%rsi
  mov    %r13,%rdi
  call   <strncpy@plt>
L88:
  mov    0x4038(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L28
  add    $0x4048,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  xchg   %ax,%ax
L69:
  lea    0x18(%rsp),%rcx
  sub    $0x8,%rsp
  mov    %r10,%rdx
  mov    %rbp,%rsi
  lea    0x34(%rsp),%rax
  mov    %r12,%rdi
  push   %rax
  lea    0x38(%rsp),%rax
  push   %rax
  lea    0x3c(%rsp),%rax
  push   %rax
  lea    0x40(%rsp),%r9
  lea    0x3c(%rsp),%r8
  mov    %r10,0x28(%rsp)
  call   <parse_file@plt>
  add    $0x20,%rsp
  test   %eax,%eax
  je     L8
  mov    0x2c(%rsp),%ebx
  sub    0x28(%rsp),%ebx
  lea    -0x1(%r14),%eax
  mov    %r14d,%edx
  cmp    %ebx,%r14d
  mov    %r13,%rdi
  mov    $0x1,%r12d
  cmovle %eax,%ebx
  xor    %esi,%esi
  call   <memset@plt>
  movslq 0x28(%rsp),%rax
  mov    0x8(%rsp),%r10
  mov    %r13,%rdi
  mov    %ebx,%edx
  movslq %ebx,%rbx
  lea    (%r10,%rax,1),%rsi
  call   <memcpy@plt>
  movb   $0x0,0x0(%r13,%rbx,1)
  jmp    L88
L28:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int read_profile_string(const char *section, const char *key, char *value, int size, const char *default_value, const char *file) {
  char buf[1024 * 16] = {0};
  int file_size;
  int sec_s, sec_e, key_s, key_e, value_s, value_e;
  assert(section != NULL && strlen(section));
  assert(key != NULL && strlen(key));
  assert(value != NULL);
  assert(size > 0);
  assert(file != NULL && strlen(key));
  if (!load_ini_file(file, buf, &file_size)) {
    if (default_value != NULL) {
      strncpy(value, default_value, size);
    }
    return 0;
  }
  if (!parse_file(section, key, buf, &sec_s, &sec_e, &key_s, &key_e, &value_s, &value_e)) {
    if (default_value != NULL) {
      strncpy(value, default_value, size);
    }
    return 0;
  } else {
    int cpcount = value_e - value_s;
    if (size - 1 < cpcount) {
      cpcount = size - 1;
    }
    memset(value, 0, size);
    memcpy(value, buf + value_s, cpcount);
    value[cpcount] = '\0';
    return 1;
  }
}
```