user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<getcmd>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x48,%rsp
  mov    %rdi,0x10(%rsp)
  mov    %esi,%ebx
  mov    %rdx,%r15
  mov    %rcx,(%rsp)
  mov    %r8,0x18(%rsp)
  mov    %r9,0x28(%rsp)
  mov    0x80(%rsp),%rax
  mov    %rax,%rcx
  mov    %rax,0x20(%rsp)
  mov    %fs:0x28,%rax
  mov    %rax,0x38(%rsp)
  xor    %eax,%eax
  movl   $0x0,(%rcx)
  mov    $0x28,%edi
  call   <malloc@plt>
  mov    %rax,%rbp
  cmpl   $0x10,(%r15)
  jne    L250
L145:
  lea    0x30(%rsp),%rsi
  lea    D57(%rip),%rdi
  call   <scanf@plt>
  mov    0x30(%rsp),%rax
  mov    %rax,0x0(%rbp)
  mov    $0x0,%ebx
  mov    $0x4,%r12d
  movl   $0x1,0xc(%rsp)
  lea    D57(%rip),%r13
  lea    D34(%rip),%r14
  jmp    L256
L250:
  mov    %ebx,%edi
  call   <prompt@plt>
  jmp    L145
L151:
  mov    $0x28,%esi
  mov    %rbp,%rdi
  call   <realloc@plt>
  mov    %rax,%rbp
  mov    $0x5,%r12d
  jmp    L21
L257:
  lea    D44(%rip),%rsi
  mov    0x30(%rsp),%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  jne    L143
  call   <getchar@plt>
  mov    $0x0,%ebx
  cmp    $0xa,%al
  jne    L182
L256:
  mov    $0x0,%eax
  call   <getchar@plt>
  test   %bl,%bl
  jne    L157
  cmp    $0xa,%al
  je     L157
  test   %r12d,%r12d
  je     L151
L21:
  lea    0x30(%rsp),%rsi
  mov    %r13,%rdi
  call   <scanf@plt>
  mov    %r14,%rsi
  mov    0x30(%rsp),%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  jne    L257
  call   <getchar@plt>
  mov    $0x0,%ebx
  cmp    $0xa,%al
  je     L256
  movl   $0x1,(%r15)
  mov    (%rsp),%rsi
  mov    %r13,%rdi
  call   <scanf@plt>
  jmp    L256
L182:
  movl   $0x2,(%r15)
  mov    (%rsp),%rsi
  mov    %r13,%rdi
  call   <scanf@plt>
  jmp    L256
L143:
  lea    D42(%rip),%rsi
  mov    0x30(%rsp),%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  jne    L199
  call   <getchar@plt>
  mov    $0x0,%ebx
  cmp    $0xa,%al
  je     L256
  movl   $0x4,(%r15)
  mov    0x18(%rsp),%rsi
  mov    %r13,%rdi
  call   <scanf@plt>
  jmp    L256
L199:
  lea    D54(%rip),%rsi
  mov    0x30(%rsp),%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  jne    L163
  call   <getchar@plt>
  mov    $0x0,%ebx
  cmp    $0xa,%al
  je     L256
  movl   $0x8,(%r15)
  mov    0x28(%rsp),%rsi
  mov    %r13,%rdi
  call   <scanf@plt>
  jmp    L256
L163:
  lea    D29(%rip),%rsi
  mov    0x30(%rsp),%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  jne    L10
  mov    0x20(%rsp),%rax
  movl   $0x1,(%rax)
  mov    $0x0,%ebx
  jmp    L256
L10:
  lea    D70(%rip),%rsi
  mov    0x30(%rsp),%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  jne    L72
  movl   $0x10,(%r15)
  mov    $0x1,%ebx
  jmp    L256
L72:
  mov    0xc(%rsp),%ecx
  movslq %ecx,%rax
  mov    0x30(%rsp),%rdx
  mov    %rdx,0x0(%rbp,%rax,8)
  add    $0x1,%ecx
  mov    %ecx,0xc(%rsp)
  sub    $0x1,%r12d
  mov    $0x0,%ebx
  jmp    L256
L157:
  test   %r12d,%r12d
  je     L233
L126:
  movslq 0xc(%rsp),%rax
  movq   $0x0,0x0(%rbp,%rax,8)
  mov    0x10(%rsp),%rax
  mov    %rbp,(%rax)
  mov    0x38(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L101
  mov    0xc(%rsp),%eax
  add    $0x48,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L233:
  mov    $0x1,%esi
  mov    %rbp,%rdi
  call   <realloc@plt>
  mov    %rax,%rbp
  jmp    L126
L101:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: data_tag: D57
type_infered: string
name: read_data
arguments: data_tag: D34
type_infered: string
name: read_data
arguments: data_tag: D44
type_infered: string
name: read_data
arguments: data_tag: D42
type_infered: string
name: read_data
arguments: data_tag: D54
type_infered: string
name: read_data
arguments: data_tag: D29
type_infered: string
name: read_data
arguments: data_tag: D70
type_infered: string

tool: D57: %ms

tool: D34: >

tool: D44: >>

tool: D42: <

tool: D54: 2>

tool: D29: &

tool: D70: |

assistant: ```c
int getcmd(char ***ret, int retVal, int *redir, char **fileOut, char **fileIn, char **fileErr, int *wait) {
  int argc, freeblocks;
  char *buf, **argv, pipe = 0;
  *wait = 0;
  argc = 0;
  freeblocks = 5;
  argv = (char **)malloc(5 * sizeof(char *));
  if (*redir != 16)
    prompt(retVal);
  scanf("%ms", &buf);
  argv[argc] = buf;
  argc++;
  freeblocks--;
  while (getchar() != '\n' && pipe == 0) {
    if (freeblocks == 0) {
      argv = (char **)realloc(argv, 5 * sizeof(char *));
      freeblocks = 5;
    }
    scanf("%ms", &buf);
    if (strcmp(buf, ">") == 0) {
      if (getchar() != '\n') {
        *redir = 1;
        scanf("%ms", fileOut);
      }
    } else if (strcmp(buf, ">>") == 0) {
      if (getchar() != '\n') {
        *redir = 2;
        scanf("%ms", fileOut);
      }
    } else if (strcmp(buf, "<") == 0) {
      if (getchar() != '\n') {
        *redir = 4;
        scanf("%ms", fileIn);
      }
    } else if (strcmp(buf, "2>") == 0) {
      if (getchar() != '\n') {
        *redir = 8;
        scanf("%ms", fileErr);
      }
    } else if (strcmp(buf, "&") == 0) {
      *wait = 1;
    } else if (strcmp(buf, "|") == 0) {
      pipe = 1;
      *redir = 16;
    } else {
      argv[argc] = buf;
      argc++;
      freeblocks--;
    }
  }
  if (freeblocks == 0) {
    argv = (char **)realloc(argv, sizeof(char));
  }
  argv[argc] = NULL;
  *ret = argv;
  return argc;
}
```