user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<test_setenv>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  lea    D74(%rip),%rbp
  mov    %rbp,%rdi
  sub    $0x8,%rsp
  call   <unsetenv@plt>
  mov    %rbp,%rdi
  call   <getenv@plt>
  test   %rax,%rax
  je     L124
  mov    $0x1f,%edx
  lea    D115(%rip),%rsi
  lea    D230(%rip),%rdi
  xor    %r12d,%r12d
  call   <printf@plt>
L126:
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   (%rax)
L124:
  lea    D96(%rip),%r13
  xor    %edx,%edx
  mov    %rbp,%rdi
  mov    %r13,%rsi
  call   <setenv@plt>
  test   %rax,%rax
  jne    L77
  mov    %rbp,%rdi
  call   <getenv@plt>
  mov    %r13,%rsi
  mov    %rax,%rdi
  call   <strcmp@plt>
  mov    %eax,%r12d
  test   %eax,%eax
  jne    L15
  lea    D143(%rip),%r14
  xor    %edx,%edx
  mov    %rbp,%rdi
  mov    %r14,%rsi
  call   <setenv@plt>
  test   %rax,%rax
  jne    L179
  mov    %rbp,%rdi
  call   <getenv@plt>
  mov    %r13,%rsi
  mov    %rax,%rdi
  call   <strcmp@plt>
  test   %eax,%eax
  jne    L85
  mov    $0x1,%edx
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <setenv@plt>
  test   %rax,%rax
  jne    L229
  mov    %rbp,%rdi
  call   <getenv@plt>
  mov    %r14,%rsi
  mov    %rax,%rdi
  call   <strcmp@plt>
  mov    %eax,%r12d
  test   %eax,%eax
  jne    L133
  mov    %rbp,%rdi
  call   <unsetenv@plt>
  test   %rax,%rax
  jne    L108
  mov    %rbp,%rdi
  call   <getenv@plt>
  test   %rax,%rax
  je     L9
  mov    $0x2b,%edx
  lea    D115(%rip),%rsi
  lea    D230(%rip),%rdi
  call   <printf@plt>
  jmp    L126
  nopl   0x0(%rax)
L15:
  mov    $0x22,%edx
  lea    D119(%rip),%rsi
  lea    D230(%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)
L77:
  mov    $0x21,%edx
  lea    D137(%rip),%rsi
  lea    D230(%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)
L179:
  mov    $0x24,%edx
  lea    D51(%rip),%rsi
  lea    D230(%rip),%rdi
  call   <printf@plt>
  jmp    L126
  nopl   (%rax)
L133:
  mov    $0x28,%edx
  lea    D208(%rip),%rsi
  lea    D230(%rip),%rdi
  xor    %r12d,%r12d
  call   <printf@plt>
  jmp    L126
  nopl   0x0(%rax,%rax,1)
L85:
  mov    $0x25,%edx
  lea    D119(%rip),%rsi
  lea    D230(%rip),%rdi
  call   <printf@plt>
  jmp    L126
  nopl   (%rax)
L229:
  mov    $0x27,%edx
  lea    D249(%rip),%rsi
  lea    D230(%rip),%rdi
  call   <printf@plt>
  jmp    L126
  nopl   (%rax)
L108:
  mov    $0x2a,%edx
  lea    D140(%rip),%rsi
  lea    D230(%rip),%rdi
  call   <printf@plt>
  jmp    L126
  nopl   (%rax)
L9:
  mov    $0x1,%edx
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <setenv@plt>
  test   %rax,%rax
  jne    L203
  mov    %rbp,%rdi
  call   <getenv@plt>
  mov    %r14,%rsi
  mov    %rax,%rdi
  call   <strcmp@plt>
  test   %eax,%eax
  jne    L208
  xor    %eax,%eax
  call   <clearenv@plt>
  test   %rax,%rax
  jne    L41
  mov    %rbp,%rdi
  mov    $0x1,%r12d
  call   <getenv@plt>
  test   %rax,%rax
  je     L126
  mov    $0x31,%edx
  lea    D115(%rip),%rsi
  lea    D230(%rip),%rdi
  xor    %r12d,%r12d
  call   <printf@plt>
  jmp    L126
L203:
  mov    $0x2d,%edx
  lea    D249(%rip),%rsi
  lea    D230(%rip),%rdi
  call   <printf@plt>
  jmp    L126
L208:
  mov    $0x2e,%edx
  lea    D208(%rip),%rsi
  lea    D230(%rip),%rdi
  call   <printf@plt>
  jmp    L126
L41:
  mov    $0x30,%edx
  lea    D219(%rip),%rsi
  lea    D230(%rip),%rdi
  xor    %r12d,%r12d
  call   <printf@plt>
  jmp    L126
```

tool_calls: name: extract_symbolic_data
arguments: tag: D74
type_infered: string
name: extract_symbolic_data
arguments: tag: D115
type_infered: string
name: extract_symbolic_data
arguments: tag: D230
type_infered: string
name: extract_symbolic_data
arguments: tag: D96
type_infered: string
name: extract_symbolic_data
arguments: tag: D143
type_infered: string
name: extract_symbolic_data
arguments: tag: D119
type_infered: string
name: extract_symbolic_data
arguments: tag: D137
type_infered: string
name: extract_symbolic_data
arguments: tag: D51
type_infered: string
name: extract_symbolic_data
arguments: tag: D208
type_infered: string
name: extract_symbolic_data
arguments: tag: D249
type_infered: string
name: extract_symbolic_data
arguments: tag: D140
type_infered: string
name: extract_symbolic_data
arguments: tag: D219
type_infered: string

tool: D74: X

tool: D115: NULL == getenv("X")

tool: D230: expression '%s' untrue at %d


tool: D96: foo

tool: D143: bar

tool: D119: !strcmp(getenv("X"), "foo")

tool: D137: 0 == setenv("X", "foo", 0)

tool: D51: 0 == setenv("X", "bar", 0)

tool: D208: !strcmp(getenv("X"), "bar")

tool: D249: 0 == setenv("X", "bar", 1)

tool: D140: 0 == unsetenv("X")

tool: D219: 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;
}
```