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

```asm
<test_setenv>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  lea    D347(%rip),%rbx
  mov    %rbx,%rdi
  call   <unsetenv@plt>
  mov    %rbx,%rdi
  call   <getenv@plt>
  test   %rax,%rax
  je     L96
  mov    $0x1f,%edx
  lea    D125(%rip),%rsi
  lea    D166(%rip),%rdi
  call   <printf@plt>
  mov    $0x0,%ebx
L32:
  mov    %ebx,%eax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L96:
  mov    $0x0,%edx
  lea    D106(%rip),%rsi
  lea    D347(%rip),%rdi
  call   <setenv@plt>
  test   %rax,%rax
  jne    L184
  lea    D347(%rip),%rdi
  call   <getenv@plt>
  mov    %rax,%rdi
  lea    D106(%rip),%rsi
  call   <strcmp@plt>
  mov    %eax,%ebx
  test   %eax,%eax
  jne    L82
  mov    $0x0,%edx
  lea    D266(%rip),%rsi
  lea    D347(%rip),%rdi
  call   <setenv@plt>
  test   %rax,%rax
  jne    L214
  lea    D347(%rip),%rdi
  call   <getenv@plt>
  mov    %rax,%rdi
  lea    D106(%rip),%rsi
  call   <strcmp@plt>
  mov    %eax,%ebp
  test   %eax,%eax
  jne    L128
  mov    $0x1,%edx
  lea    D266(%rip),%rsi
  lea    D347(%rip),%rdi
  call   <setenv@plt>
  test   %rax,%rax
  jne    L34
  lea    D347(%rip),%rdi
  call   <getenv@plt>
  mov    %rax,%rdi
  lea    D266(%rip),%rsi
  call   <strcmp@plt>
  mov    %eax,%ebx
  test   %eax,%eax
  jne    L145
  lea    D347(%rip),%rdi
  call   <unsetenv@plt>
  test   %rax,%rax
  jne    L98
  lea    D347(%rip),%rdi
  call   <getenv@plt>
  test   %rax,%rax
  je     L101
  mov    $0x2b,%edx
  lea    D125(%rip),%rsi
  lea    D166(%rip),%rdi
  call   <printf@plt>
  jmp    L32
L184:
  mov    $0x21,%edx
  lea    D381(%rip),%rsi
  lea    D166(%rip),%rdi
  call   <printf@plt>
  mov    $0x0,%ebx
  jmp    L32
L82:
  mov    $0x22,%edx
  lea    D401(%rip),%rsi
  lea    D166(%rip),%rdi
  call   <printf@plt>
  mov    $0x0,%ebx
  jmp    L32
L214:
  mov    $0x24,%edx
  lea    D259(%rip),%rsi
  lea    D166(%rip),%rdi
  call   <printf@plt>
  jmp    L32
L128:
  mov    $0x25,%edx
  lea    D401(%rip),%rsi
  lea    D166(%rip),%rdi
  call   <printf@plt>
  jmp    L32
L34:
  mov    $0x27,%edx
  lea    D444(%rip),%rsi
  lea    D166(%rip),%rdi
  call   <printf@plt>
  mov    %ebp,%ebx
  jmp    L32
L145:
  mov    $0x28,%edx
  lea    D32(%rip),%rsi
  lea    D166(%rip),%rdi
  call   <printf@plt>
  mov    %ebp,%ebx
  jmp    L32
L98:
  mov    $0x2a,%edx
  lea    D394(%rip),%rsi
  lea    D166(%rip),%rdi
  call   <printf@plt>
  jmp    L32
L101:
  mov    $0x1,%edx
  lea    D266(%rip),%rsi
  lea    D347(%rip),%rdi
  call   <setenv@plt>
  test   %rax,%rax
  jne    L97
  lea    D347(%rip),%rdi
  call   <getenv@plt>
  mov    %rax,%rdi
  lea    D266(%rip),%rsi
  call   <strcmp@plt>
  mov    %eax,%ebp
  test   %eax,%eax
  jne    L47
  mov    $0x0,%eax
  call   <clearenv@plt>
  test   %rax,%rax
  jne    L218
  lea    D347(%rip),%rdi
  call   <getenv@plt>
  mov    $0x1,%ebx
  test   %rax,%rax
  je     L32
  mov    $0x31,%edx
  lea    D125(%rip),%rsi
  lea    D166(%rip),%rdi
  call   <printf@plt>
  mov    %ebp,%ebx
  jmp    L32
L97:
  mov    $0x2d,%edx
  lea    D444(%rip),%rsi
  lea    D166(%rip),%rdi
  call   <printf@plt>
  jmp    L32
L47:
  mov    $0x2e,%edx
  lea    D32(%rip),%rsi
  lea    D166(%rip),%rdi
  call   <printf@plt>
  jmp    L32
L218:
  mov    $0x30,%edx
  lea    D104(%rip),%rsi
  lea    D166(%rip),%rdi
  call   <printf@plt>
  mov    %ebp,%ebx
  jmp    L32
```

tool_calls: name: unpack_data
arguments: data_tag: D347
data_type: string
name: unpack_data
arguments: data_tag: D125
data_type: string
name: unpack_data
arguments: data_tag: D166
data_type: string
name: unpack_data
arguments: data_tag: D106
data_type: string
name: unpack_data
arguments: data_tag: D266
data_type: string
name: unpack_data
arguments: data_tag: D381
data_type: string
name: unpack_data
arguments: data_tag: D401
data_type: string
name: unpack_data
arguments: data_tag: D259
data_type: string
name: unpack_data
arguments: data_tag: D444
data_type: string
name: unpack_data
arguments: data_tag: D32
data_type: string
name: unpack_data
arguments: data_tag: D394
data_type: string
name: unpack_data
arguments: data_tag: D104
data_type: string

tool: D347: X

tool: D125: NULL == getenv("X")

tool: D166: expression '%s' untrue at %d


tool: D106: foo

tool: D266: bar

tool: D381: 0 == setenv("X", "foo", 0)

tool: D401: !strcmp(getenv("X"), "foo")

tool: D259: 0 == setenv("X", "bar", 0)

tool: D444: 0 == setenv("X", "bar", 1)

tool: D32: !strcmp(getenv("X"), "bar")

tool: D394: 0 == unsetenv("X")

tool: D104: 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;
}
```