user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<test_setenv>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  lea    D162(%rip),%rbp
  mov    %rbp,%rdi
  sub    $0x8,%rsp
  call   <unsetenv@plt>
  mov    %rbp,%rdi
  call   <getenv@plt>
  test   %rax,%rax
  je     L193
  mov    $0x1f,%edx
  lea    D11(%rip),%rsi
  lea    D100(%rip),%rdi
  xor    %r12d,%r12d
  call   <printf@plt>
L118:
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   (%rax)
L193:
  lea    D152(%rip),%r13
  xor    %edx,%edx
  mov    %rbp,%rdi
  mov    %r13,%rsi
  call   <setenv@plt>
  test   %rax,%rax
  jne    L174
  mov    %rbp,%rdi
  call   <getenv@plt>
  mov    %r13,%rsi
  mov    %rax,%rdi
  call   <strcmp@plt>
  mov    %eax,%r12d
  test   %eax,%eax
  jne    L124
  lea    D47(%rip),%r14
  xor    %edx,%edx
  mov    %rbp,%rdi
  mov    %r14,%rsi
  call   <setenv@plt>
  test   %rax,%rax
  jne    L150
  mov    %rbp,%rdi
  call   <getenv@plt>
  mov    %r13,%rsi
  mov    %rax,%rdi
  call   <strcmp@plt>
  test   %eax,%eax
  jne    L81
  mov    $0x1,%edx
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <setenv@plt>
  test   %rax,%rax
  jne    L75
  mov    %rbp,%rdi
  call   <getenv@plt>
  mov    %r14,%rsi
  mov    %rax,%rdi
  call   <strcmp@plt>
  mov    %eax,%r12d
  test   %eax,%eax
  jne    L80
  mov    %rbp,%rdi
  call   <unsetenv@plt>
  test   %rax,%rax
  jne    L139
  mov    %rbp,%rdi
  call   <getenv@plt>
  test   %rax,%rax
  je     L184
  mov    $0x2b,%edx
  lea    D11(%rip),%rsi
  lea    D100(%rip),%rdi
  call   <printf@plt>
  jmp    L118
  nopl   0x0(%rax)
L124:
  mov    $0x22,%edx
  lea    D284(%rip),%rsi
  lea    D100(%rip),%rdi
  xor    %r12d,%r12d
  call   <printf@plt>
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopw   0x0(%rax,%rax,1)
L174:
  mov    $0x21,%edx
  lea    D193(%rip),%rsi
  lea    D100(%rip),%rdi
  xor    %r12d,%r12d
  call   <printf@plt>
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopw   0x0(%rax,%rax,1)
L150:
  mov    $0x24,%edx
  lea    D243(%rip),%rsi
  lea    D100(%rip),%rdi
  call   <printf@plt>
  jmp    L118
  nopl   (%rax)
L80:
  mov    $0x28,%edx
  lea    D57(%rip),%rsi
  lea    D100(%rip),%rdi
  xor    %r12d,%r12d
  call   <printf@plt>
  jmp    L118
  nopl   0x0(%rax,%rax,1)
L81:
  mov    $0x25,%edx
  lea    D284(%rip),%rsi
  lea    D100(%rip),%rdi
  call   <printf@plt>
  jmp    L118
  nopl   (%rax)
L75:
  mov    $0x27,%edx
  lea    D189(%rip),%rsi
  lea    D100(%rip),%rdi
  call   <printf@plt>
  jmp    L118
  nopl   (%rax)
L139:
  mov    $0x2a,%edx
  lea    D233(%rip),%rsi
  lea    D100(%rip),%rdi
  call   <printf@plt>
  jmp    L118
  nopl   (%rax)
L184:
  mov    $0x1,%edx
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <setenv@plt>
  test   %rax,%rax
  jne    L53
  mov    %rbp,%rdi
  call   <getenv@plt>
  mov    %r14,%rsi
  mov    %rax,%rdi
  call   <strcmp@plt>
  test   %eax,%eax
  jne    L147
  xor    %eax,%eax
  call   <clearenv@plt>
  test   %rax,%rax
  jne    L132
  mov    %rbp,%rdi
  mov    $0x1,%r12d
  call   <getenv@plt>
  test   %rax,%rax
  je     L118
  mov    $0x31,%edx
  lea    D11(%rip),%rsi
  lea    D100(%rip),%rdi
  xor    %r12d,%r12d
  call   <printf@plt>
  jmp    L118
L53:
  mov    $0x2d,%edx
  lea    D189(%rip),%rsi
  lea    D100(%rip),%rdi
  call   <printf@plt>
  jmp    L118
L147:
  mov    $0x2e,%edx
  lea    D57(%rip),%rsi
  lea    D100(%rip),%rdi
  call   <printf@plt>
  jmp    L118
L132:
  mov    $0x30,%edx
  lea    D131(%rip),%rsi
  lea    D100(%rip),%rdi
  xor    %r12d,%r12d
  call   <printf@plt>
  jmp    L118
```

tool_calls: name: read_data
arguments: label: D162
data_type: string
name: read_data
arguments: label: D11
data_type: string
name: read_data
arguments: label: D100
data_type: string
name: read_data
arguments: label: D152
data_type: string
name: read_data
arguments: label: D47
data_type: string
name: read_data
arguments: label: D284
data_type: string
name: read_data
arguments: label: D193
data_type: string
name: read_data
arguments: label: D243
data_type: string
name: read_data
arguments: label: D57
data_type: string
name: read_data
arguments: label: D189
data_type: string
name: read_data
arguments: label: D233
data_type: string
name: read_data
arguments: label: D131
data_type: string

tool: D162: X

tool: D11: NULL == getenv("X")

tool: D100: expression '%s' untrue at %d


tool: D152: foo

tool: D47: bar

tool: D284: !strcmp(getenv("X"), "foo")

tool: D193: 0 == setenv("X", "foo", 0)

tool: D243: 0 == setenv("X", "bar", 0)

tool: D57: !strcmp(getenv("X"), "bar")

tool: D189: 0 == setenv("X", "bar", 1)

tool: D233: 0 == unsetenv("X")

tool: D131: 0 == clearenv()

assistant: ```c
int test_setenv(void) {
  unsetenv("X");
  do {
    if (!(NULL == getenv("X"))) {
      printf("expression '%s' untrue at %d\n", "NULL == getenv(\"X\")", 31);
      return 0;
    }
  } while (0);
  do {
    if (!(0 == setenv("X", "foo", 0))) {
      printf("expression '%s' untrue at %d\n", "0 == setenv(\"X\", \"foo\", 0)", 33);
      return 0;
    }
  } while (0);
  do {
    if (!(!strcmp(getenv("X"), "foo"))) {
      printf("expression '%s' untrue at %d\n", "!strcmp(getenv(\"X\"), \"foo\")", 34);
      return 0;
    }
  } while (0);
  do {
    if (!(0 == setenv("X", "bar", 0))) {
      printf("expression '%s' untrue at %d\n", "0 == setenv(\"X\", \"bar\", 0)", 36);
      return 0;
    }
  } while (0);
  do {
    if (!(!strcmp(getenv("X"), "foo"))) {
      printf("expression '%s' untrue at %d\n", "!strcmp(getenv(\"X\"), \"foo\")", 37);
      return 0;
    }
  } while (0);
  do {
    if (!(0 == setenv("X", "bar", 1))) {
      printf("expression '%s' untrue at %d\n", "0 == setenv(\"X\", \"bar\", 1)", 39);
      return 0;
    }
  } while (0);
  do {
    if (!(!strcmp(getenv("X"), "bar"))) {
      printf("expression '%s' untrue at %d\n", "!strcmp(getenv(\"X\"), \"bar\")", 40);
      return 0;
    }
  } while (0);
  do {
    if (!(0 == unsetenv("X"))) {
      printf("expression '%s' untrue at %d\n", "0 == unsetenv(\"X\")", 42);
      return 0;
    }
  } while (0);
  do {
    if (!(NULL == getenv("X"))) {
      printf("expression '%s' untrue at %d\n", "NULL == getenv(\"X\")", 43);
      return 0;
    }
  } while (0);
  do {
    if (!(0 == setenv("X", "bar", 1))) {
      printf("expression '%s' untrue at %d\n", "0 == setenv(\"X\", \"bar\", 1)", 45);
      return 0;
    }
  } while (0);
  do {
    if (!(!strcmp(getenv("X"), "bar"))) {
      printf("expression '%s' untrue at %d\n", "!strcmp(getenv(\"X\"), \"bar\")", 46);
      return 0;
    }
  } while (0);
  do {
    if (!(0 == clearenv())) {
      printf("expression '%s' untrue at %d\n", "0 == clearenv()", 48);
      return 0;
    }
  } while (0);
  do {
    if (!(NULL == getenv("X"))) {
      printf("expression '%s' untrue at %d\n", "NULL == getenv(\"X\")", 49);
      return 0;
    }
  } while (0);
  return 1;
}
```