| /* -*- Mode: C; tab-width: 4 -*- |
| * |
| * Copyright (c) 2003-2004, Apple Computer, Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of its |
| * contributors may be used to endorse or promote products derived from this |
| * software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| Change History (most recent first): |
| |
| $Log: dnssd_ipc.c,v $ |
| Revision 1.23 2009/04/01 21:10:34 herscher |
| <rdar://problem/5925472> Current Bonjour code does not compile on Windows |
| |
| Revision 1.22 2009/02/12 20:28:31 cheshire |
| Added some missing "const" declarations |
| |
| Revision 1.21 2008/10/23 23:21:31 cheshire |
| Moved definition of dnssd_strerror() to be with the definition of dnssd_errno, in dnssd_ipc.h |
| |
| Revision 1.20 2007/07/23 22:12:53 cheshire |
| <rdar://problem/5352299> Make mDNSResponder more defensive against malicious local clients |
| |
| Revision 1.19 2007/05/16 01:06:52 cheshire |
| <rdar://problem/4471320> Improve reliability of kDNSServiceFlagsMoreComing flag on multiprocessor machines |
| |
| Revision 1.18 2007/03/21 19:01:57 cheshire |
| <rdar://problem/5078494> IPC code not 64-bit-savvy: assumes long=32bits, and short=16bits |
| |
| Revision 1.17 2006/10/27 00:38:22 cheshire |
| Strip accidental trailing whitespace from lines |
| |
| Revision 1.16 2006/08/14 23:05:53 cheshire |
| Added "tab-width" emacs header line |
| |
| Revision 1.15 2005/01/27 22:57:56 cheshire |
| Fix compile errors on gcc4 |
| |
| Revision 1.14 2004/10/06 02:22:20 cheshire |
| Changed MacRoman copyright symbol (should have been UTF-8 in any case :-) to ASCII-compatible "(c)" |
| |
| Revision 1.13 2004/10/01 22:15:55 rpantos |
| rdar://problem/3824265: Replace APSL in client lib with BSD license. |
| |
| Revision 1.12 2004/09/16 23:14:24 cheshire |
| Changes for Windows compatibility |
| |
| Revision 1.11 2004/06/18 04:56:09 rpantos |
| casting goodness |
| |
| Revision 1.10 2004/06/12 01:08:14 cheshire |
| Changes for Windows compatibility |
| |
| Revision 1.9 2004/05/18 23:51:27 cheshire |
| Tidy up all checkin comments to use consistent "<rdar://problem/xxxxxxx>" format for bug numbers |
| |
| Revision 1.8 2003/11/05 22:44:57 ksekar |
| <rdar://problem/3335230>: No bounds checking when reading data from client |
| Reviewed by: Stuart Cheshire |
| |
| Revision 1.7 2003/08/12 19:56:25 cheshire |
| Update to APSL 2.0 |
| |
| */ |
| |
| #include "dnssd_ipc.h" |
| |
| #if defined(_WIN32) |
| |
| char *win32_strerror(int inErrorCode) |
| { |
| static char buffer[1024]; |
| DWORD n; |
| memset(buffer, 0, sizeof(buffer)); |
| n = FormatMessageA( |
| FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, |
| NULL, |
| (DWORD) inErrorCode, |
| MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
| buffer, |
| sizeof(buffer), |
| NULL); |
| if (n > 0) |
| { |
| // Remove any trailing CR's or LF's since some messages have them. |
| while ((n > 0) && isspace(((unsigned char *) buffer)[n - 1])) |
| buffer[--n] = '\0'; |
| } |
| return buffer; |
| } |
| |
| #endif |
| |
| void put_uint32(const uint32_t l, char **ptr) |
| { |
| (*ptr)[0] = (char)((l >> 24) & 0xFF); |
| (*ptr)[1] = (char)((l >> 16) & 0xFF); |
| (*ptr)[2] = (char)((l >> 8) & 0xFF); |
| (*ptr)[3] = (char)((l ) & 0xFF); |
| *ptr += sizeof(uint32_t); |
| } |
| |
| uint32_t get_uint32(const char **ptr, const char *end) |
| { |
| if (!*ptr || *ptr + sizeof(uint32_t) > end) |
| { |
| *ptr = NULL; |
| return(0); |
| } |
| else |
| { |
| uint8_t *p = (uint8_t*) *ptr; |
| *ptr += sizeof(uint32_t); |
| return((uint32_t) ((uint32_t)p[0] << 24 | (uint32_t)p[1] << 16 | (uint32_t)p[2] << 8 | p[3])); |
| } |
| } |
| |
| void put_uint16(uint16_t s, char **ptr) |
| { |
| (*ptr)[0] = (char)((s >> 8) & 0xFF); |
| (*ptr)[1] = (char)((s ) & 0xFF); |
| *ptr += sizeof(uint16_t); |
| } |
| |
| uint16_t get_uint16(const char **ptr, const char *end) |
| { |
| if (!*ptr || *ptr + sizeof(uint16_t) > end) |
| { |
| *ptr = NULL; |
| return(0); |
| } |
| else |
| { |
| uint8_t *p = (uint8_t*) *ptr; |
| *ptr += sizeof(uint16_t); |
| return((uint16_t) ((uint16_t)p[0] << 8 | p[1])); |
| } |
| } |
| |
| int put_string(const char *str, char **ptr) |
| { |
| if (!str) str = ""; |
| strcpy(*ptr, str); |
| *ptr += strlen(str) + 1; |
| return 0; |
| } |
| |
| int get_string(const char **ptr, const char *const end, char *buffer, int buflen) |
| { |
| if (!*ptr) |
| { |
| *buffer = 0; |
| return(-1); |
| } |
| else |
| { |
| char *lim = buffer + buflen; // Calculate limit |
| while (*ptr < end && buffer < lim) |
| { |
| char c = *buffer++ = *(*ptr)++; |
| if (c == 0) return(0); // Success |
| } |
| if (buffer == lim) buffer--; |
| *buffer = 0; // Failed, so terminate string, |
| *ptr = NULL; // clear pointer, |
| return(-1); // and return failure indication |
| } |
| } |
| |
| void put_rdata(const int rdlen, const unsigned char *rdata, char **ptr) |
| { |
| memcpy(*ptr, rdata, rdlen); |
| *ptr += rdlen; |
| } |
| |
| const char *get_rdata(const char **ptr, const char *end, int rdlen) |
| { |
| if (!*ptr || *ptr + rdlen > end) |
| { |
| *ptr = NULL; |
| return(0); |
| } |
| else |
| { |
| const char *rd = *ptr; |
| *ptr += rdlen; |
| return rd; |
| } |
| } |
| |
| void ConvertHeaderBytes(ipc_msg_hdr *hdr) |
| { |
| hdr->version = htonl(hdr->version); |
| hdr->datalen = htonl(hdr->datalen); |
| hdr->ipc_flags = htonl(hdr->ipc_flags); |
| hdr->op = htonl(hdr->op ); |
| hdr->reg_index = htonl(hdr->reg_index); |
| } |