non-export.c

/*
 * non-export.c - Part of Wsock-Trace.
 *
 * The resulting 'wsock_trace.lib' (or 'libwsock_trace.a') is an import-lib for
 * 'wsock_trace.dll' (or 'wsock_trace_mw.dll' / 'wsock_trace_cyg.dll').
 *
 * Since the SDK header <ws2ipdef.h> declares the below data with no export
 * declaration, this non-export.obj is simply added to the imp-lib.
 */

#if defined(__MINGW32__) || defined(__CYGWIN__)
  /*
   * A hack to hide the different MinGW/CygWin's prototype of
   * 'gai_strerror[A|W]' in <ws2tcpip.h>.
   */
  #define gai_strerrorA orig_gai_strerrorA
  #define gai_strerrorW orig_gai_strerrorW
#endif

#include "common.h"
#include "in_addr.h"

GCC_PRAGMA (GCC diagnostic ignored "-Wmissing-braces")

const IN_ADDR in4addr_any                     = { 0,0,0,0 };
const IN_ADDR in4addr_loopback                = { 127,0,0,1 };
const IN_ADDR in4addr_broadcast               = { 255,255,255,255 };
const IN_ADDR in4addr_allnodesonlink          = { 224,0,0,1 };
const IN_ADDR in4addr_allroutersonlink        = { 224,0,0,2 };
const IN_ADDR in4addr_alligmpv3routersonlink  = { 224,0,0,22 };
const IN_ADDR in4addr_allteredohostsonlink    = { 224,0,0,253 };
const IN_ADDR in4addr_linklocalprefix         = { 169,254,0,0 };
const IN_ADDR in4addr_multicastprefix         = { 224,0,0,0 };

const IN6_ADDR in6addr_any = {{
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
    }};

const IN6_ADDR in6addr_loopback = {{
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1
    }};

const IN6_ADDR in6addr_allnodesonnode = {{
      0xFF,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1
    }};

const IN6_ADDR in6addr_allnodesonlink = {{
      0xFF,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1
    }};

const IN6_ADDR in6addr_allroutersonlink = {{
      0xFF,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2
    }};

const IN6_ADDR in6addr_allmldv2routersonlink = {{
      0xFF,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0x10
    }};

const IN6_ADDR in6addr_teredoinitiallinklocaladdress = {{
      0xFE,0x80,0,0,0,0,0,0,0,0,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE
    }};

const IN6_ADDR in6addr_linklocalprefix = {{
      0xFE,0x80,0,0,0,0,0,0,0,0,0,0,0,0,0,0
    }};

const IN6_ADDR in6addr_multicastprefix = {{
      0xFF,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
    }};

const IN6_ADDR in6addr_solicitednodemulticastprefix = {{
      0xFF,2,0,0,0,0,0,0,0,0,0,1,0xFF,0,0,0
    }};

const IN6_ADDR in6addr_v4mappedprefix = {{
      0,0,0,0,0,0,0,0,0,0,0xFF,0xFF,0,0,0,0
    }};

const IN6_ADDR in6addr_6to4prefix = {{
      0x20,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0
    }};

const IN6_ADDR in6addr_teredoprefix = {{
      0x20,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0
    }};

const IN6_ADDR in6addr_teredoprefix_old = {{
      0x3F,0xFE,0x83,0x1F,0,0,0,0,0,0,0,0,0,0,0,0
    }};

#if defined(__MINGW32__) || defined(__CYGWIN__) || defined(__WATCOMC__) /* Rest of file */
/*
 * These are 'static __inline' function in MinGW.org's <ws2tcpip.h>.
 * But in other MinGW distribution they are not.
 *
 * Under CygWin these functions seems to be in several places:
 * libc.a, libcygwin.a and libg.a.
 *
 * In any case, they are part of 'libws2_32.a' even though 'gai_strerror[A|W]'
 * is not part of the system 'ws2_32.dll'. So for 'libwsock_trace.a' to be a
 * replacement for 'libws2_32.a', we must also add these functions to it.
 *
 * But tracing these calls would be difficult since the needed functions
 * for that is in wsock_trace.c.
 */
#define FORMAT_FLAGS (FORMAT_MESSAGE_FROM_SYSTEM    | \
                      FORMAT_MESSAGE_IGNORE_INSERTS | \
                      FORMAT_MESSAGE_MAX_WIDTH_MASK)

#undef gai_strerrorA
#undef gai_strerrorW

char *gai_strerrorA (int err)
{
  static char err_buf [512];

  err_buf[0] = '\0';
  FormatMessageA (FORMAT_FLAGS, NULL, err, LANG_NEUTRAL,
                  err_buf, sizeof(err_buf)-1, NULL);
  return str_rip (err_buf);
}

wchar_t *gai_strerrorW (int err)
{
  static wchar_t err_buf [512];

  err_buf[0] = L'\0';
  FormatMessageW (FORMAT_FLAGS, NULL, err, LANG_NEUTRAL,
                  err_buf, DIM(err_buf)-1, NULL);
  return str_ripw (err_buf);
}

/*
 * These are also in common.c. But since this module is not part of
 * the wsock_trace_mw.dll (only added to libwsock_trace.a), these
 * function must also be here.
 */
char *str_rip (char *s)
{
  char *p;

  if ((p = strrchr(s,'\n')) != NULL) *p = '\0';
  if ((p = strrchr(s,'\r')) != NULL) *p = '\0';
  return (s);
}

wchar_t *str_ripw (wchar_t *s)
{
  wchar_t *p;

  if ((p = wcsrchr(s,L'\n')) != NULL) *p = L'\0';
  if ((p = wcsrchr(s,L'\r')) != NULL) *p = L'\0';
  return (s);
}
#endif  /* __MINGW32__ || __CYGWIN__ || __WATCOMC__ */