4b22b9337f359bfd063322244f5336cc7c6ffcfars/* -*- Mode: C; tab-width: 4 -*-
4b22b9337f359bfd063322244f5336cc7c6ffcfars *
cda73f64f20b8a0afc4909f5ea1f055ec7913856Toomas Soome * Copyright (c) 2003-2011 Apple Inc. All rights reserved.
4b22b9337f359bfd063322244f5336cc7c6ffcfars *
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * Redistribution and use in source and binary forms, with or without
4b22b9337f359bfd063322244f5336cc7c6ffcfars * modification, are permitted provided that the following conditions are met:
4b22b9337f359bfd063322244f5336cc7c6ffcfars *
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * 1. Redistributions of source code must retain the above copyright notice,
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * this list of conditions and the following disclaimer.
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * 2. Redistributions in binary form must reproduce the above copyright notice,
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * this list of conditions and the following disclaimer in the documentation
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * and/or other materials provided with the distribution.
cda73f64f20b8a0afc4909f5ea1f055ec7913856Toomas Soome * 3. Neither the name of Apple Inc. ("Apple") nor the names of its
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * contributors may be used to endorse or promote products derived from this
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * software without specific prior written permission.
4b22b9337f359bfd063322244f5336cc7c6ffcfars *
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
4b22b9337f359bfd063322244f5336cc7c6ffcfars * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
4b22b9337f359bfd063322244f5336cc7c6ffcfars */
4b22b9337f359bfd063322244f5336cc7c6ffcfars
4b22b9337f359bfd063322244f5336cc7c6ffcfars#include "dnssd_ipc.h"
4b22b9337f359bfd063322244f5336cc7c6ffcfars
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome#if defined(_WIN32)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soomechar *win32_strerror(int inErrorCode)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome{
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome static char buffer[1024];
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome DWORD n;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome memset(buffer, 0, sizeof(buffer));
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome n = FormatMessageA(
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome NULL,
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome (DWORD) inErrorCode,
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome buffer,
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome sizeof(buffer),
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome NULL);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome if (n > 0)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome {
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome // Remove any trailing CR's or LF's since some messages have them.
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome while ((n > 0) && isspace(((unsigned char *) buffer)[n - 1]))
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome buffer[--n] = '\0';
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome }
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome return buffer;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome}
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome#endif
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soomevoid put_uint32(const uint32_t l, char **ptr)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome{
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome (*ptr)[0] = (char)((l >> 24) & 0xFF);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome (*ptr)[1] = (char)((l >> 16) & 0xFF);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome (*ptr)[2] = (char)((l >> 8) & 0xFF);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome (*ptr)[3] = (char)((l ) & 0xFF);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome *ptr += sizeof(uint32_t);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome}
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soomeuint32_t get_uint32(const char **ptr, const char *end)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome{
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome if (!*ptr || *ptr + sizeof(uint32_t) > end)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome {
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome *ptr = NULL;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome return(0);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome }
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome else
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome {
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome uint8_t *p = (uint8_t*) *ptr;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome *ptr += sizeof(uint32_t);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome return((uint32_t) ((uint32_t)p[0] << 24 | (uint32_t)p[1] << 16 | (uint32_t)p[2] << 8 | p[3]));
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome }
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome}
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soomevoid put_uint16(uint16_t s, char **ptr)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome{
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome (*ptr)[0] = (char)((s >> 8) & 0xFF);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome (*ptr)[1] = (char)((s ) & 0xFF);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome *ptr += sizeof(uint16_t);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome}
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soomeuint16_t get_uint16(const char **ptr, const char *end)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome{
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome if (!*ptr || *ptr + sizeof(uint16_t) > end)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome {
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome *ptr = NULL;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome return(0);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome }
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome else
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome {
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome uint8_t *p = (uint8_t*) *ptr;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome *ptr += sizeof(uint16_t);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome return((uint16_t) ((uint16_t)p[0] << 8 | p[1]));
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome }
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome}
4b22b9337f359bfd063322244f5336cc7c6ffcfars
4b22b9337f359bfd063322244f5336cc7c6ffcfarsint put_string(const char *str, char **ptr)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome{
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome if (!str) str = "";
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome strcpy(*ptr, str);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome *ptr += strlen(str) + 1;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome return 0;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome}
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soomeint get_string(const char **ptr, const char *const end, char *buffer, int buflen)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome{
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome if (!*ptr)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome {
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome *buffer = 0;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome return(-1);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome }
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome else
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome {
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome char *lim = buffer + buflen; // Calculate limit
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome while (*ptr < end && buffer < lim)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome {
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome char c = *buffer++ = *(*ptr)++;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome if (c == 0) return(0); // Success
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome }
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome if (buffer == lim) buffer--;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome *buffer = 0; // Failed, so terminate string,
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome *ptr = NULL; // clear pointer,
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome return(-1); // and return failure indication
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome }
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome}
4b22b9337f359bfd063322244f5336cc7c6ffcfars
4b22b9337f359bfd063322244f5336cc7c6ffcfarsvoid put_rdata(const int rdlen, const unsigned char *rdata, char **ptr)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome{
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome memcpy(*ptr, rdata, rdlen);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome *ptr += rdlen;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome}
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soomeconst char *get_rdata(const char **ptr, const char *end, int rdlen)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome{
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome if (!*ptr || *ptr + rdlen > end)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome {
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome *ptr = NULL;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome return(0);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome }
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome else
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome {
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome const char *rd = *ptr;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome *ptr += rdlen;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome return rd;
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome }
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome}
4b22b9337f359bfd063322244f5336cc7c6ffcfars
4b22b9337f359bfd063322244f5336cc7c6ffcfarsvoid ConvertHeaderBytes(ipc_msg_hdr *hdr)
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome{
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome hdr->version = htonl(hdr->version);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome hdr->datalen = htonl(hdr->datalen);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome hdr->ipc_flags = htonl(hdr->ipc_flags);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome hdr->op = htonl(hdr->op );
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome hdr->reg_index = htonl(hdr->reg_index);
5ffb0c9b03b5149ff4f5821a62be4a52408ada2aToomas Soome}