user: 请从给定的汇编指令推导出C源代码：

```asm
<main>:
  endbr64
  push   %r15
  lea    D3(%rip),%rsi
  lea    D177(%rip),%rdi
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0xc8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0xb8(%rsp)
  xor    %eax,%eax
  call   <fopen@plt>
  lea    D87(%rip),%rdi
  mov    %rax,%r12
  call   <printf@plt>
  lea    0x6c(%rsp),%rax
  lea    0x80(%rsp),%rdx
  mov    %rax,0x18(%rsp)
  mov    %rax,%rsi
  xor    %eax,%eax
  lea    0x54(%rsp),%rcx
  lea    D83(%rip),%rdi
  mov    %rdx,0x48(%rsp)
  call   <scanf@plt>
  movsbl 0x6c(%rsp),%edx
  test   %dl,%dl
  je     L117
  movsbl 0x6d(%rsp),%eax
  test   %al,%al
  je     L195
  add    %eax,%edx
  movsbl 0x6e(%rsp),%eax
  test   %al,%al
  je     L195
  add    %eax,%edx
  movsbl 0x6f(%rsp),%eax
  test   %al,%al
  je     L195
  add    %eax,%edx
  movsbl 0x70(%rsp),%eax
  test   %al,%al
  je     L195
  add    %eax,%edx
  movsbl 0x71(%rsp),%eax
  test   %al,%al
  je     L195
  add    %eax,%edx
  movsbl 0x72(%rsp),%eax
  test   %al,%al
  je     L195
  add    %eax,%edx
  movsbl 0x73(%rsp),%eax
  test   %al,%al
  je     L195
  add    %edx,%eax
  movsbl 0x74(%rsp),%edx
  add    %eax,%edx
L195:
  movslq %edx,%rax
  mov    %edx,%ecx
  imul   $0x66666667,%rax,%rax
  sar    $0x1f,%ecx
  sar    $0x22,%rax
  sub    %ecx,%eax
  lea    (%rax,%rax,4),%ecx
  mov    %edx,%eax
  add    %ecx,%ecx
  sub    %ecx,%eax
  cmp    $0xffffffff,%eax
  je     L41
L65:
  lea    0x64(%rsp),%rbx
  lea    0x58(%rsp),%r14
  movq   $0x0,0x20(%rsp)
  mov    %rbx,0x38(%rsp)
  lea    0x60(%rsp),%rbx
  mov    %r14,%rbp
  mov    %rbx,0x30(%rsp)
  lea    D189(%rip),%rbx
  mov    %rbx,0x28(%rsp)
  lea    0x5c(%rsp),%rbx
  mov    %rbx,0x10(%rsp)
  lea    D144(%rip),%rbx
  nopl   0x0(%rax)
L244:
  cltq
  mov    %r12,%rdi
  lea    (%rax,%rax,8),%rdx
  lea    (%rax,%rdx,4),%rax
  xor    %edx,%edx
  shl    $0x2,%rax
  mov    %rax,%rsi
  mov    %rax,0x40(%rsp)
  call   <fseek@plt>
  mov    0x38(%rsp),%rcx
  mov    %r12,%rdi
  xor    %eax,%eax
  mov    0x30(%rsp),%rdx
  lea    D63(%rip),%rsi
  call   <fscanf@plt>
  mov    0x60(%rsp),%eax
  test   %eax,%eax
  jle    L250
  xor    %r13d,%r13d
  lea    0xa0(%rsp),%r15
  lea    0x76(%rsp),%r14
  nopl   0x0(%rax,%rax,1)
L142:
  mov    %r12,%rdi
  call   <ftell@plt>
  mov    0x10(%rsp),%r9
  mov    %r15,%r8
  mov    %r14,%rcx
  mov    %eax,0xc(%rsp)
  mov    %rbp,%rdx
  mov    %rbx,%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <fscanf@plt>
  mov    0x58(%rsp),%eax
  test   %eax,%eax
  je     L157
  cmp    $0x1,%eax
  je     L198
L14:
  add    $0x1,%r13d
  cmp    %r13d,0x60(%rsp)
  jg     L142
L250:
  mov    0x64(%rsp),%eax
  cmp    $0xffffffff,%eax
  jne    L244
L151:
  mov    0x20(%rsp),%rbx
  mov    %rbp,%r14
  test   %rbx,%rbx
  je     L245
  mov    0x48(%rsp),%r8
  mov    0x18(%rsp),%rcx
  mov    %rbx,%rdi
  xor    %edx,%edx
  pxor   %xmm0,%xmm0
  lea    D135(%rip),%rsi
  mov    $0x1,%eax
  cvtss2sd 0x54(%rsp),%xmm0
  call   <fprintf@plt>
  mov    %rbx,%rdi
  call   <fclose@plt>
L215:
  mov    %r12,%rdi
  call   <fclose@plt>
  lea    D86(%rip),%rdi
  call   <printf@plt>
  mov    0x28(%rsp),%rdi
  xor    %eax,%eax
  mov    %r14,%rsi
  call   <scanf@plt>
  xor    %edi,%edi
  call   <exit@plt>
  mov    0xb8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L172
  add    $0xc8,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L157:
  mov    0x18(%rsp),%rsi
  mov    %r14,%rdi
  call   <strcmp@plt>
  test   %rax,%rax
  je     L136
L253:
  mov    0x58(%rsp),%eax
  cmp    $0x1,%eax
  jne    L14
L198:
  lea    D3(%rip),%rsi
  lea    D177(%rip),%rdi
  add    $0x1,%r13d
  call   <fopen@plt>
  mov    0xc(%rsp),%esi
  xor    %edx,%edx
  mov    %rax,%rdi
  mov    %rax,0x20(%rsp)
  add    $0x2,%esi
  movslq %esi,%rsi
  call   <fseek@plt>
  cmp    %r13d,0x60(%rsp)
  jg     L142
  mov    0x64(%rsp),%eax
  cmp    $0xffffffff,%eax
  jne    L244
  jmp    L151
  nopl   0x0(%rax)
L136:
  lea    D118(%rip),%rdi
  call   <printf@plt>
  mov    %r12,%rdi
  call   <fclose@plt>
  mov    0x28(%rsp),%rdi
  mov    %rbp,%rsi
  xor    %eax,%eax
  call   <scanf@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L253
L41:
  lea    D189(%rip),%rax
  lea    0x58(%rsp),%r14
  mov    %rax,0x28(%rsp)
L245:
  cmpl   $0x2,0x60(%rsp)
  jg     L138
  mov    %r12,%rdi
  mov    $0x1,%edx
  mov    $0x2,%esi
  call   <fseek@plt>
  mov    0x48(%rsp),%r8
  xor    %edx,%edx
  mov    %r12,%rdi
  mov    0x18(%rsp),%rcx
  lea    D135(%rip),%rsi
  pxor   %xmm0,%xmm0
  mov    $0x1,%eax
  cvtss2sd 0x54(%rsp),%xmm0
  call   <fprintf@plt>
  mov    0x40(%rsp),%rsi
  xor    %edx,%edx
  mov    %r12,%rdi
  call   <fseek@plt>
  mov    0x60(%rsp),%eax
  lea    D26(%rip),%rsi
  mov    %r12,%rdi
  lea    0x1(%rax),%edx
  xor    %eax,%eax
  mov    %edx,0x60(%rsp)
  call   <fprintf@plt>
  jmp    L215
L138:
  lea    D3(%rip),%rsi
  lea    D89(%rip),%rdi
  call   <fopen@plt>
  mov    0x28(%rsp),%rsi
  lea    0x68(%rsp),%rdx
  lea    D112(%rip),%r13
  mov    %rax,%rbp
  mov    %rax,%rdi
  xor    %eax,%eax
  call   <fscanf@plt>
  mov    0x40(%rsp),%rsi
  xor    %edx,%edx
  mov    %r12,%rdi
  call   <fseek@plt>
  mov    0x68(%rsp),%eax
  mov    0x60(%rsp),%edx
  mov    %r13,%rsi
  mov    %r12,%rdi
  lea    0xa(%rax),%ecx
  xor    %eax,%eax
  call   <fprintf@plt>
  xor    %esi,%esi
  mov    %r12,%rdi
  mov    $0x2,%edx
  call   <fseek@plt>
  or     $0xffffffff,%ecx
  mov    %r13,%rsi
  mov    %r12,%rdi
  mov    $0x1,%edx
  xor    %eax,%eax
  lea    D135(%rip),%r13
  call   <fprintf@plt>
  mov    0x48(%rsp),%r8
  xor    %edx,%edx
  mov    %r13,%rsi
  mov    0x18(%rsp),%rcx
  mov    %r12,%rdi
  pxor   %xmm0,%xmm0
  mov    $0x1,%eax
  cvtss2sd 0x54(%rsp),%xmm0
  call   <fprintf@plt>
  or     $0xffffffff,%edx
  mov    %r13,%rsi
  mov    %r12,%rdi
  lea    D202(%rip),%r8
  pxor   %xmm0,%xmm0
  mov    $0x1,%eax
  mov    %r8,%r15
  mov    %r8,%rcx
  call   <fprintf@plt>
  pxor   %xmm0,%xmm0
  mov    %r15,%r8
  mov    %r15,%rcx
  or     $0xffffffff,%edx
  mov    %r13,%rsi
  mov    %r12,%rdi
  mov    $0x1,%eax
  call   <fprintf@plt>
  xor    %edx,%edx
  xor    %esi,%esi
  mov    %rbp,%rdi
  call   <fseek@plt>
  mov    0x68(%rsp),%eax
  mov    %rbp,%rdi
  lea    D54(%rip),%rsi
  lea    0x1(%rax),%edx
  xor    %eax,%eax
  mov    %edx,0x68(%rsp)
  call   <fprintf@plt>
  mov    %rbp,%rdi
  call   <fclose@plt>
  jmp    L215
L117:
  xor    %eax,%eax
  jmp    L65
L172:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: tag: D3
data_type: string
name: unpack_data
arguments: tag: D177
data_type: string
name: unpack_data
arguments: tag: D87
data_type: string
name: unpack_data
arguments: tag: D83
data_type: string
name: unpack_data
arguments: tag: D189
data_type: string
name: unpack_data
arguments: tag: D144
data_type: string
name: unpack_data
arguments: tag: D63
data_type: string
name: unpack_data
arguments: tag: D135
data_type: string
name: unpack_data
arguments: tag: D86
data_type: string
name: unpack_data
arguments: tag: D118
data_type: string
name: unpack_data
arguments: tag: D26
data_type: string
name: unpack_data
arguments: tag: D89
data_type: string
name: unpack_data
arguments: tag: D112
data_type: string
name: unpack_data
arguments: tag: D202
data_type: string
name: unpack_data
arguments: tag: D54
data_type: string

tool: D3: r+

tool: D177: ../create/emp

tool: D87: Please enter SSN, name and salary separated by blanks


tool: D83: %s%s%f

tool: D189: %d

tool: D144: %d%s%s%f

tool: D63: %d%d

tool: D135: %3d%10s%21s%10.2f


tool: D86: Insert complete.


tool: D118: Error!!!SSN all ready Exist, aborting the insert.

tool: D26: %4d

tool: D89: ../create/over

tool: D112: %4d%4d


tool: D202: x

tool: D54: %4d


assistant: ```c
main() {
  FILE *fp;
  FILE *fpd = 0;
  char issn[10], iname[21];
  float isal;
  int del;
  char ssn[10], name[21];
  float sal;
  int h;
  long off;
  int x;
  int i;
  int nrec;
  int j, z;
  int ovptr;
  int offr;
  int nov;
  fp = fopen("../create/emp", "r+");
  printf("Please enter SSN, name and salary separated by blanks\n");
  scanf("%s%s%f", issn, iname, &isal);
  for (x = i = 0; issn[i] != 0; i++) {
    x = x + issn[i];
  }
  h = x % 10;
  for (i = h; i != -1; i = ovptr) {
    off = i * (10L + 3 * (3 + 10 + 21 + 10 + 2));
    fseek(fp, off, 0);
    fscanf(fp, "%d%d", &nrec, &ovptr);
    for (j = 0; j < nrec; j++) {
      offr = ftell(fp) + 2;
      fscanf(fp, "%d%s%s%f", &del, ssn, name, &sal);
      if ((del == 0) && (strcmp(ssn, issn) == 0)) {
        printf("Error!!!SSN all ready Exist, aborting the insert.");
        fclose(fp);
        scanf("%d", &del);
        exit(1);
      }
      if (del == 1) {
        fpd = fopen("../create/emp", "r+");
        fseek(fpd, offr, 0);
      }
    }
  }
  if (fpd != 0) {
    fprintf(fpd, "%3d%10s%21s%10.2f\n", 0, issn, iname, isal);
    fclose(fpd);
  } else if (nrec < 3) {
    fseek(fp, 2L, 1);
    fprintf(fp, "%3d%10s%21s%10.2f\n", 0, issn, iname, isal);
    fseek(fp, off, 0);
    fprintf(fp, "%4d", ++nrec);
  } else {
    fpd = fopen("../create/over", "r+");
    fscanf(fpd, "%d", &nov);
    fseek(fp, off, 0);
    fprintf(fp, "%4d%4d\n", nrec, 10 + nov);
    fseek(fp, 0L, 2);
    fprintf(fp, "%4d%4d\n", 1, -1);
    fprintf(fp, "%3d%10s%21s%10.2f\n", 0, issn, iname, isal);
    for (z = 0; z < 2; z++) {
      fprintf(fp, "%3d%10s%21s%10.2f\n", -1, "x", "x", 0.0);
    }
    fseek(fpd, 0L, 0);
    fprintf(fpd, "%4d\n", ++nov);
    fclose(fpd);
  }
  fclose(fp);
  printf("Insert complete.\n");
  scanf("%d", &del);
  exit(0);
}
```