NetUserEnum

[suppandi]

Hi,

I was trying to run notes7 and it was crashing because NetUserEnum() was not
implemented. So i tried writing a simple implementation. Could anybody have
a look at this, and tell me whats wrong. Now notes just crashes without any
doc. unfortunately i amn't a windows programmer to write a simple program
to make the call.

NetUserEnum(LPCWSTR servername, DWORD level, DWORD filter, LPBYTE* bufptr,
            DWORD prefmaxlen, LPDWORD entriesread, LPDWORD totalentries,
            LPDWORD resume_handle)
{
  struct USER_INFO_20
  {
      LPWSTR usri20_name;
      LPWSTR usri20_full_name;
      LPWSTR usri20_comment;
      DWORD  usri20_flags;
      DWORD  usri20_user_id;
  };

switch(level)
  {
     case 20:
     {
        struct USER_INFO_20 *data;
        char user[]={'t','e','s','t'};
        NetApiBufferAllocate(sizeof(struct USER_INFO_20),
                             (LPVOID *) bufptr);
        data = (struct USER_INFO_20 *)malloc(sizeof(struct USER_INFO_20));
        data->usri20_name = (LPWSTR)malloc(20);
        memcpy((void*)data->usri20_name,user,4);
        data->usri20_full_name = (LPWSTR)malloc(20);
        memcpy((void*)data->usri20_full_name,user,4);
        data->usri20_comment = (LPWSTR)malloc(20);
        memcpy((void*)data->usri20_comment,user,4);
        data->usri20_flags = UF_NORMAL_ACCOUNT;
        data->usri20_user_id = 1000;
        *entriesread = *totalentries = 1;
        return 0;
     }
     break;
     default:
       FIXME("(%s,%ld, 0x%ld,%p,%ld,%p,%p,%p) stub!\n",
debugstr_w(servername), level,
          filter, bufptr, prefmaxlen, entriesread, totalentries,
resume_handle);

return ERROR_ACCESS_DENIED;
     break;
  }
}

[Stefan Leichter]

Hello,

some things me think are not correct.

1. you fill the values into the memory pointed by data but how is data passed 
back to the caller of the function ?
2. the string you like to pass back for some fields of the USER_INFO_20 is 
ASCII but it must be UNICODE (change char -> WCHAR).
3. the above string  is not terminated (add ,0)

Note: For 2 and 3 you need to adjust the count of memcpy or better use 
lstrcpy[n]W.

By Stefan

Am Samstag, 28. Januar 2006 06:02 schrieb suppandi:
> Hi,
>
> I was trying to run notes7 and it was crashing because NetUserEnum() was
> not implemented. So i tried writing a simple implementation. Could anybody
> have a look at this, and tell me whats wrong. Now notes just crashes
> without any doc. unfortunately i amn't a windows programmer to write a
> simple program to make the call.
>
> NetUserEnum(LPCWSTR servername, DWORD level, DWORD filter, LPBYTE* bufptr,
>             DWORD prefmaxlen, LPDWORD entriesread, LPDWORD totalentries,
>             LPDWORD resume_handle)
> {
>   struct USER_INFO_20
>   {
>       LPWSTR usri20_name;
>       LPWSTR usri20_full_name;
>       LPWSTR usri20_comment;
>       DWORD  usri20_flags;
>       DWORD  usri20_user_id;
>   };
>
> switch(level)
>   {
>      case 20:
>      {
>         struct USER_INFO_20 *data;
>         char user[]={'t','e','s','t'};
>         NetApiBufferAllocate(sizeof(struct USER_INFO_20),
>                              (LPVOID *) bufptr);
>         data = (struct USER_INFO_20 *)malloc(sizeof(struct USER_INFO_20));
>         data->usri20_name = (LPWSTR)malloc(20);
>         memcpy((void*)data->usri20_name,user,4);
>         data->usri20_full_name = (LPWSTR)malloc(20);
>         memcpy((void*)data->usri20_full_name,user,4);
>         data->usri20_comment = (LPWSTR)malloc(20);
>         memcpy((void*)data->usri20_comment,user,4);
>         data->usri20_flags = UF_NORMAL_ACCOUNT;
>         data->usri20_user_id = 1000;
>         *entriesread = *totalentries = 1;
>         return 0;
>      }
>      break;
>      default:
>        FIXME("(%s,%ld, 0x%ld,%p,%ld,%p,%p,%p) stub!\n",
> debugstr_w(servername), level,
>           filter, bufptr, prefmaxlen, entriesread, totalentries,
> resume_handle);
>    return ERROR_ACCESS_DENIED;
>  break;
>
> }
> }