user: Converte this assembly snippet into its equivalent C code:

```asm
<main>:
  endbr64
  push   %r15
  xor    %esi,%esi
  mov    $0x400,%edx
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x828,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x818(%rsp)
  xor    %eax,%eax
  lea    0x10(%rsp),%r15
  lea    0x410(%rsp),%r13
  mov    %r15,%rdi
  call   <memset@plt>
  xor    %esi,%esi
  mov    $0x400,%edx
  mov    %r13,%rdi
  call   <memset@plt>
  lea    D134(%rip),%rdi
  call   <getenv@plt>
  lea    D66(%rip),%rdi
  mov    %rax,%rbp
  call   <getenv@plt>
  test   %rbp,%rbp
  je     L21
  mov    %rax,%r12
  test   %rax,%rax
  je     L106
  mov    %rbp,%rsi
  mov    %r15,%rdi
  call   <strcat@plt>
  mov    $0x4,%edx
  lea    D79(%rip),%rsi
  mov    %r12,%rdi
  call   <strncmp@plt>
  test   %rax,%rax
  jne    L153
L80:
  lea    D0(%rip),%rsi
  mov    %r15,%rdi
  call   <strcat@plt>
L115:
  mov    %rbp,%rsi
  mov    %r13,%rdi
  call   <strcat@plt>
  lea    D202(%rip),%rsi
  mov    %r13,%rdi
  call   <strcat@plt>
  lea    D50(%rip),%rsi
  mov    %r15,%rdi
  call   <fopen@plt>
  mov    %rax,%r14
  test   %rax,%rax
  je     L34
  lea    D243(%rip),%rsi
  mov    %r13,%rdi
  call   <fopen@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L112
  mov    %rax,%rcx
  mov    $0x28,%edx
  mov    $0x1,%esi
  xor    %r13d,%r13d
  lea    D180(%rip),%r12
  lea    D106(%rip),%r15
  mov    %r12,%rdi
  call   <fwrite@plt>
  mov    %rbp,%rcx
  mov    $0x28,%edx
  mov    %r12,%rdi
  mov    $0x1,%esi
  lea    0xe(%rsp),%r12
  call   <fwrite@plt>
  mov    %rbp,%rsi
  mov    $0xa,%edi
  call   <fputc@plt>
  mov    %rbp,%rsi
  mov    $0xa,%edi
  call   <fputc@plt>
  mov    %rbp,%rcx
  mov    $0x1c,%edx
  mov    $0x1,%esi
  lea    D205(%rip),%rdi
  call   <fwrite@plt>
  jmp    L72
  nop
L39:
  add    $0x1,%r13d
L54:
  mov    %rbp,%rcx
  mov    $0x2,%edx
  mov    $0x1,%esi
  mov    %r15,%rdi
  call   <fwrite@plt>
  movzbl %bl,%edx
  lea    D166(%rip),%rsi
  mov    %r12,%rdi
  call   <sprintf@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <fputs@plt>
  mov    %rbp,%rcx
  mov    $0x2,%edx
  mov    $0x1,%esi
  lea    D90(%rip),%rdi
  call   <fwrite@plt>
L72:
  mov    %r14,%rdi
  call   <getc@plt>
  mov    %r14,%rdi
  mov    %eax,%ebx
  call   <feof@plt>
  test   %rax,%rax
  jne    L42
  xor    %esi,%esi
  mov    $0x2,%edx
  mov    %r12,%rdi
  call   <memset@plt>
  cmp    $0x10,%r13d
  jne    L39
  mov    %rbp,%rsi
  mov    $0xa,%edi
  mov    $0x1,%r13d
  call   <fputc@plt>
  jmp    L54
  nopl   0x0(%rax,%rax,1)
L42:
  mov    %rbp,%rcx
  mov    $0x4,%edx
  mov    $0x1,%esi
  lea    D153(%rip),%rdi
  call   <fwrite@plt>
  mov    %r14,%rdi
  call   <fclose@plt>
  mov    %rbp,%rdi
  call   <fclose@plt>
  xor    %edi,%edi
  call   <exit@plt>
  xor    %eax,%eax
L103:
  mov    0x818(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L207
  add    $0x828,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L153:
  mov    $0x4,%edx
  lea    D249(%rip),%rsi
  mov    %r12,%rdi
  call   <strncmp@plt>
  test   %rax,%rax
  je     L78
  mov    $0x4,%edx
  lea    D212(%rip),%rsi
  mov    %r12,%rdi
  call   <strncmp@plt>
  test   %rax,%rax
  je     L80
  mov    $0x4,%edx
  lea    D195(%rip),%rsi
  mov    %r12,%rdi
  call   <strncmp@plt>
  test   %rax,%rax
  je     L78
  mov    $0x4,%edx
  lea    D119(%rip),%rsi
  mov    %r12,%rdi
  call   <strncmp@plt>
  test   %rax,%rax
  je     L78
  mov    $0x4,%edx
  lea    D28(%rip),%rsi
  mov    %r12,%rdi
  call   <strncmp@plt>
  test   %rax,%rax
  je     L78
  mov    $0x4,%edx
  lea    D77(%rip),%rsi
  mov    %r12,%rdi
  call   <strncmp@plt>
  test   %rax,%rax
  je     L78
  mov    $0x9,%edx
  lea    D68(%rip),%rsi
  mov    %r12,%rdi
  call   <strncmp@plt>
  test   %rax,%rax
  jne    L80
L78:
  lea    D174(%rip),%rsi
  mov    %r15,%rdi
  call   <strcat@plt>
  jmp    L115
L106:
  lea    D22(%rip),%rdi
  call   <puts@plt>
L10:
  or     $0xffffffff,%eax
  jmp    L103
L21:
  lea    D58(%rip),%rdi
  call   <puts@plt>
  jmp    L10
L112:
  mov    %r13,%rsi
  lea    D96(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  jmp    L10
L34:
  mov    %r15,%rsi
  lea    D75(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  jmp    L10
L207:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: data_tag: D134
type_infered: string
name: retrieve_data
arguments: data_tag: D66
type_infered: string
name: retrieve_data
arguments: data_tag: D79
type_infered: string
name: retrieve_data
arguments: data_tag: D0
type_infered: string
name: retrieve_data
arguments: data_tag: D202
type_infered: string
name: retrieve_data
arguments: data_tag: D50
type_infered: string
name: retrieve_data
arguments: data_tag: D243
type_infered: string
name: retrieve_data
arguments: data_tag: D180
type_infered: string
name: retrieve_data
arguments: data_tag: D106
type_infered: string
name: retrieve_data
arguments: data_tag: D205
type_infered: string
name: retrieve_data
arguments: data_tag: D166
type_infered: string
name: retrieve_data
arguments: data_tag: D90
type_infered: string
name: retrieve_data
arguments: data_tag: D153
type_infered: string
name: retrieve_data
arguments: data_tag: D249
type_infered: string
name: retrieve_data
arguments: data_tag: D212
type_infered: string
name: retrieve_data
arguments: data_tag: D195
type_infered: string
name: retrieve_data
arguments: data_tag: D119
type_infered: string
name: retrieve_data
arguments: data_tag: D28
type_infered: string
name: retrieve_data
arguments: data_tag: D77
type_infered: string
name: retrieve_data
arguments: data_tag: D68
type_infered: string
name: retrieve_data
arguments: data_tag: D174
type_infered: string
name: retrieve_data
arguments: data_tag: D22
type_infered: string
name: retrieve_data
arguments: data_tag: D58
type_infered: string
name: retrieve_data
arguments: data_tag: D96
type_infered: string
name: retrieve_data
arguments: data_tag: D75
type_infered: string

tool: D134: RT28xx_DIR

tool: D66: CHIPSET

tool: D79: 2860

tool: D0: /common/rt2860.bin

tool: D202: /include/firmware.h

tool: D50: r

tool: D243: w

tool: D180: /* AUTO GEN PLEASE DO NOT MODIFY IT */ 


tool: D106: 0x

tool: D205: UCHAR FirmwareImage [] = { 


tool: D166: %02x

tool: D90: , 

tool: D153: } ;


tool: D249: 2870

tool: D212: 3090

tool: D195: 2070

tool: D119: 3070

tool: D28: 3572

tool: D77: 3370

tool: D68: USB_COMBO

tool: D174: /common/rt2870.bin

tool: D22: Environment value "CHIPSET" not export 

tool: D58: Environment value "RT28xx_DIR" not export 

tool: D96: Can't open write file %s 


tool: D75: Can't read file %s 


assistant: ```c
int main(int argc, char *argv[]) {
  FILE *infile, *outfile;
  char infname[1024];
  char outfname[1024];
  char *rt28xxdir;
  char *chipset;
  int i = 0;
  unsigned char c;
  memset(infname, 0, 1024);
  memset(outfname, 0, 1024);
  rt28xxdir = (char *)getenv("RT28xx_DIR");
  chipset = (char *)getenv("CHIPSET");
  if (!rt28xxdir) {
    printf("Environment value \"RT28xx_DIR\" not export \n");
    return -1;
  }
  if (!chipset) {
    printf("Environment value \"CHIPSET\" not export \n");
    return -1;
  }
  strcat(infname, rt28xxdir);
  if (strncmp(chipset, "2860", 4) == 0)
    strcat(infname, "/common/rt2860.bin");
  else if (strncmp(chipset, "2870", 4) == 0)
    strcat(infname, "/common/rt2870.bin");
  else if (strncmp(chipset, "3090", 4) == 0)
    strcat(infname, "/common/rt2860.bin");
  else if (strncmp(chipset, "2070", 4) == 0)
    strcat(infname, "/common/rt2870.bin");
  else if (strncmp(chipset, "3070", 4) == 0)
    strcat(infname, "/common/rt2870.bin");
  else if (strncmp(chipset, "3572", 4) == 0)
    strcat(infname, "/common/rt2870.bin");
  else if (strncmp(chipset, "3370", 4) == 0)
    strcat(infname, "/common/rt2870.bin");
  else if (strncmp(chipset, "USB_COMBO", 9) == 0)
    strcat(infname, "/common/rt2870.bin");
  else
    strcat(infname, "/common/rt2860.bin");
  strcat(outfname, rt28xxdir);
  strcat(outfname, "/include/firmware.h");
  infile = fopen(infname, "r");
  if (infile == (FILE *)NULL) {
    printf("Can't read file %s \n", infname);
    return -1;
  }
  outfile = fopen(outfname, "w");
  if (outfile == (FILE *)NULL) {
    printf("Can't open write file %s \n", outfname);
    return -1;
  }
  fputs("/* AUTO GEN PLEASE DO NOT MODIFY IT */ \n", outfile);
  fputs("/* AUTO GEN PLEASE DO NOT MODIFY IT */ \n", outfile);
  fputs("\n", outfile);
  fputs("\n", outfile);
  fputs("UCHAR FirmwareImage [] = { \n", outfile);
  while (1) {
    char cc[2];
    c = getc(infile);
    if (feof(infile))
      break;
    memset(cc, 0, 2);
    if (i >= 16) {
      fputs("\n", outfile);
      i = 0;
    }
    fputs("0x", outfile);
    sprintf(cc, "%02x", c);
    fputs(cc, outfile);
    fputs(", ", outfile);
    i++;
  }
  fputs("} ;\n", outfile);
  fclose(infile);
  fclose(outfile);
  exit(0);
}
```