RPC broken on Windows

[dooglus]

See https://bitcointalk.org/index.php?topic=623147.msg11897391#msg11897391

Apparently the content-type header is having a 'u' appended.

[dooglus]

util.h defines the formats:

/* Format characters for (s)size_t and ptrdiff_t */
#if defined(_MSC_VER) || defined(__MSVCRT__)
  /* (s)size_t and ptrdiff_t have the same size specifier in MSVC:
     http://msdn.microsoft.com/en-us/library/tcxf1dw6%28v=vs.100%29.aspx
   */
  #define PRIszx    "Ix"
  #define PRIszu    "Iu"
  #define PRIszd    "Id"
  #define PRIpdx    "Ix"
  #define PRIpdu    "Iu"
  #define PRIpdd    "Id"
#else /* C99 standard */
  #define PRIszx    "zx"
  #define PRIszu    "zu"
  #define PRIszd    "zd"
  #define PRIpdx    "tx"
  #define PRIpdu    "tu"
  #define PRIpdd    "td"
#endif

So that's where the problem should be fixed?

[l0rdicon]

Your suggestion on the form of changing

bitcoin/src/rpcprotocol.cpp to:

        "Content-Length: %u\r\n"

was what I ended on as well. I think thats the way to go.

[creativecuriosity]

The Blackcoin commit for reference:

c974b21

[dooglus]

The blackcoin commit replaces PRIszu with u throughout? Wouldn't it be better to fix just the #define line if it's wrong?

I tried getting set up with gitian but am getting errors all over the place so I've so far been unable to experiment with the Windows compiler.

[ghost]

I encountered this in another altcoin (can't recall which, wasn't CLAMS tho'). Was under Linux (ubuntu 14.04) and bracketing the PRIszu with whitespace worked for me, as per the SO question on using symbols in a string referenced by dooglus in the bct thread.

See if this works:

"Content-Length: %" PRIszu "\r\n"

Cheers

Graham

[dooglus]

Fixed by #206 in release v1.4.15.

[dooglus]

@gjhiggins We tried adding spaces as you suggested, but it had no effect. It turned out the problem was that we were using gitian to cross-compile for Windows, which uses MinGW, which is a GNU c++ compiler and so doesn't know the non-ANSI Microsoft format codes.

See #205 for details of my testing and #206 for the resolution.

[casinobitcoin]

Cheers Guys!