user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<main>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x68,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x58(%rsp)
  xor    %eax,%eax
  cmp    $0x3,%edi
  jle    L40
L28:
  mov    0x18(%rbx),%rdi
  lea    D74(%rip),%rsi
  call   <fopen@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L24
L73:
  xor    %edi,%edi
  lea    0xc(%rsp),%r13
  call   <time@plt>
  mov    %rbp,%rcx
  mov    $0x3,%edx
  mov    $0x1,%esi
  lea    D0(%rip),%rdi
  mov    %eax,0xc(%rsp)
  call   <fwrite@plt>
  mov    %r13,%rdi
  call   <ctime@plt>
  lea    D82(%rip),%rsi
  mov    %rbp,%rdi
  mov    %rax,%rdx
  xor    %eax,%eax
  call   <fprintf@plt>
  mov    %rbp,%rcx
  mov    $0x36,%edx
  mov    $0x1,%esi
  lea    D77(%rip),%rdi
  call   <fwrite@plt>
  mov    %rbp,%rcx
  mov    $0x5,%edx
  mov    $0x1,%esi
  lea    D69(%rip),%rdi
  call   <fwrite@plt>
  mov    0x10(%rbx),%rcx
  mov    0x8(%rbx),%rdx
  mov    %rbp,%rdi
  lea    D57(%rip),%rsi
  xor    %eax,%eax
  call   <fprintf@plt>
  xor    %edi,%edi
  call   <cuserid@plt>
  mov    %r13,%rdi
  lea    0x10(%rsp),%r13
  mov    %rax,%r12
  call   <ctime@plt>
  mov    $0x40,%edx
  mov    %r13,%rdi
  mov    %rax,%rsi
  call   <strncpy@plt>
  cmpb   $0x0,0x10(%rsp)
  mov    %r13,%rdx
  je     L62
  nopw   0x0(%rax,%rax,1)
L72:
  add    $0x1,%rdx
  cmpb   $0x0,(%rdx)
  jne    L72
L62:
  cmpb   $0xa,-0x1(%rdx)
  jne    L21
  movb   $0x0,-0x1(%rdx)
L21:
  mov    %rbp,%rdi
  xor    %eax,%eax
  mov    %r13,%rcx
  mov    %r12,%rdx
  lea    D15(%rip),%rsi
  call   <fprintf@plt>
  xor    %edi,%edi
  call   <exit@plt>
  mov    0x58(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L71
  add    $0x68,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L40:
  lea    D31(%rip),%rdi
  call   <puts@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L28
L24:
  mov    0x18(%rbx),%rsi
  lea    D51(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L73
L71:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: tag: D74
data_type: string
name: extract_symbolic_data
arguments: tag: D0
data_type: string
name: extract_symbolic_data
arguments: tag: D82
data_type: string
name: extract_symbolic_data
arguments: tag: D77
data_type: string
name: extract_symbolic_data
arguments: tag: D69
data_type: string
name: extract_symbolic_data
arguments: tag: D57
data_type: string
name: extract_symbolic_data
arguments: tag: D15
data_type: string
name: extract_symbolic_data
arguments: tag: D31
data_type: string
name: extract_symbolic_data
arguments: tag: D51
data_type: string

tool: D74: w

tool: D0: /*


tool: D82:  * G2 Version Stamp, %s

tool: D77:  * Automatically generated, hand edits are pointless.


tool: D69:  */



tool: D57: const char *version_string = "G2 (%s) major version %s";


tool: D15: const char *minor_v_string = "Built by %s at %s";


tool: D31: usage: mkversion ostype version outputfile

tool: D51: Couldn't create %s


assistant: ```c
int main(int argc, char **argv) {
  time_t now;
  FILE *ofp;
  char *dateval;
  char *username;
  char *userstr;
  char *datestr;
  int i;
  char propname[32];
  char *propvalue;
  char timestr[64];
  char *cp;
  if (argc < 4) {
    printf("usage: mkversion ostype version outputfile\n");
    exit(1);
  }
  ofp = fopen(argv[3], "w");
  if (ofp == NULL) {
    printf("Couldn't create %s\n", argv[3]);
    exit(1);
  }
  now = time(0);
  fprintf(ofp, "/*\n");
  fprintf(ofp, " * G2 Version Stamp, %s", ctime(&now));
  fprintf(ofp, " * Automatically generated, hand edits are pointless.\n");
  fprintf(ofp, " */\n\n");
  fprintf(ofp, "const char *version_string = \"G2 (%s) major version %s\";\n", argv[1], argv[2]);
  username = (char *)cuserid(0);
  strncpy(timestr, ctime(&now), sizeof(timestr));
  cp = timestr;
  while (*cp) {
    cp++;
  }
  if (*--cp == '\n')
    *cp = 0;
  fprintf(ofp, "const char *minor_v_string = \"Built by %s at %s\";\n", username, timestr);
  exit(0);
}
```