mirror of
https://github.com/reactos/reactos.git
synced 2024-08-28 14:18:41 +00:00
495 lines
11 KiB
C
495 lines
11 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS WinSock 2 API
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* FILE: dll/win32/ws2_32_new/src/addrconv.c
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* PURPOSE: Address and Port Conversion Support
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* PROGRAMMER: Alex Ionescu (alex@relsoft.net)
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*/
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/* INCLUDES ******************************************************************/
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#include <ws2_32.h>
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#define NDEBUG
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#include <debug.h>
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/* DEFINES *******************************************************************/
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#ifndef BE
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/* DWORD network to host byte order conversion for little endian machines */
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#define DN2H(dw) \
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((((dw) & 0xFF000000L) >> 24) | \
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(((dw) & 0x00FF0000L) >> 8) | \
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(((dw) & 0x0000FF00L) << 8) | \
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(((dw) & 0x000000FFL) << 24))
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/* DWORD host to network byte order conversion for little endian machines */
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#define DH2N(dw) \
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((((dw) & 0xFF000000L) >> 24) | \
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(((dw) & 0x00FF0000L) >> 8) | \
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(((dw) & 0x0000FF00L) << 8) | \
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(((dw) & 0x000000FFL) << 24))
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/* WORD network to host order conversion for little endian machines */
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#define WN2H(w) \
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((((w) & 0xFF00) >> 8) | \
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(((w) & 0x00FF) << 8))
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/* WORD host to network byte order conversion for little endian machines */
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#define WH2N(w) \
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((((w) & 0xFF00) >> 8) | \
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(((w) & 0x00FF) << 8))
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#else /* BE */
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/* DWORD network to host byte order conversion for big endian machines */
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#define DN2H(dw) \
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(dw)
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/* DWORD host to network byte order conversion big endian machines */
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#define DH2N(dw) \
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(dw)
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/* WORD network to host order conversion for big endian machines */
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#define WN2H(w) \
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(w)
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/* WORD host to network byte order conversion for big endian machines */
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#define WH2N(w) \
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(w)
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#endif /* BE */
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/* FUNCTIONS *****************************************************************/
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/*
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* @implemented
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*/
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ULONG
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WSAAPI
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inet_addr(IN CONST CHAR FAR* cp)
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{
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register u_long val, base, n;
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register unsigned char c;
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u_long parts[4], *pp = parts;
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if (!cp) return INADDR_ANY;
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if (!isdigit(*cp)) return INADDR_NONE;
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again:
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/*
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* Collect number up to ``.''.
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* Values are specified as for C:
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* 0x=hex, 0=octal, other=decimal.
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*/
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val = 0; base = 10;
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if (*cp == '0') {
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if (*++cp == 'x' || *cp == 'X')
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base = 16, cp++;
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else
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base = 8;
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}
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while ((c = *cp)) {
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if (isdigit(c)) {
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val = (val * base) + (c - '0');
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cp++;
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continue;
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}
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if (base == 16 && isxdigit(c)) {
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val = (val << 4) + (c + 10 - (islower(c) ? 'a' : 'A'));
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cp++;
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continue;
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}
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break;
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}
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if (*cp == '.') {
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/*
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* Internet format:
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* a.b.c.d
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* a.b.c (with c treated as 16-bits)
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* a.b (with b treated as 24 bits)
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*/
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if (pp >= parts + 4) return (INADDR_NONE);
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*pp++ = val;
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cp++;
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goto again;
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}
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/*
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* Check for trailing characters.
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*/
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if (*cp && !isspace((UCHAR)*cp)) return (INADDR_NONE);
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*pp++ = val;
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/*
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* Concoct the address according to
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* the number of parts specified.
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*/
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n = (u_long)(pp - parts);
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switch (n) {
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case 1: /* a -- 32 bits */
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val = parts[0];
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break;
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case 2: /* a.b -- 8.24 bits */
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val = (parts[0] << 24) | (parts[1] & 0xffffff);
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break;
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case 3: /* a.b.c -- 8.8.16 bits */
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val = (parts[0] << 24) | ((parts[1] & 0xff) << 16) |
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(parts[2] & 0xffff);
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break;
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case 4: /* a.b.c.d -- 8.8.8.8 bits */
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val = (parts[0] << 24) | ((parts[1] & 0xff) << 16) |
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((parts[2] & 0xff) << 8) | (parts[3] & 0xff);
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break;
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default:
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return (INADDR_NONE);
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}
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val = htonl(val);
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return (val);
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}
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/*
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* @implemented
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*/
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CHAR FAR*
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WSAAPI
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inet_ntoa(IN IN_ADDR in)
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{
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PWSPROCESS Process;
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PWSTHREAD Thread;
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INT ErrorCode;
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WSADATA WsaData;
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BOOL ManualLoad = FALSE;
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CHAR b[10];
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PCHAR p;
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DPRINT("inet_ntoa: %lx\n", in);
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/* Enter prolog */
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if ((ErrorCode = WsApiProlog(&Process, &Thread)) != ERROR_SUCCESS)
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{
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DPRINT("MANUAL LOAD\n");
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/* Only fail if the error wasn't related to a missing WSAStartup */
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if (ErrorCode != WSANOTINITIALISED)
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{
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/* Fail */
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SetLastError(ErrorCode);
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return NULL;
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}
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/* Apps aren't expected to call WSAStartup for this API, so we will */
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if ((ErrorCode = WSAStartup(MAKEWORD(2,2), &WsaData)) != ERROR_SUCCESS)
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{
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/* We failed */
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SetLastError(ErrorCode);
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return NULL;
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}
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/* Try the prolog again */
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ManualLoad = TRUE;
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if ((ErrorCode = WsApiProlog(&Process, &Thread)) != ERROR_SUCCESS)
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{
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/* Failed again... */
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WSACleanup();
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SetLastError(ErrorCode);
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return NULL;
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}
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}
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p = Thread->Buffer;
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_itoa(in.S_un.S_addr & 0xFF, b, 10);
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strcpy(p, b);
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_itoa((in.S_un.S_addr >> 8) & 0xFF, b, 10);
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strcat(p, ".");
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strcat(p, b);
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_itoa((in.S_un.S_addr >> 16) & 0xFF, b, 10);
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strcat(p, ".");
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strcat(p, b);
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_itoa((in.S_un.S_addr >> 24) & 0xFF, b, 10);
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strcat(p, ".");
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strcat(p, b);
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/* Cleanup the manual load */
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if (ManualLoad) WSACleanup();
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/* Return the buffer */
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return p;
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}
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/*
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* @implemented
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*/
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ULONG
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WSAAPI
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htonl(IN ULONG hostlong)
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{
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return DH2N(hostlong);
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}
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/*
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* @implemented
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*/
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USHORT
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WSAAPI
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htons(IN USHORT hostshort)
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{
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return WH2N(hostshort);
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}
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/*
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* @implemented
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*/
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ULONG
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WSAAPI
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ntohl(IN ULONG netlong)
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{
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return DN2H(netlong);
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}
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/*
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* @implemented
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*/
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USHORT
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WSAAPI
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ntohs(IN USHORT netshort)
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{
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return WN2H(netshort);
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}
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/*
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* @implemented
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*/
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INT
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WSAAPI
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WSAHtonl(IN SOCKET s,
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IN ULONG hostlong,
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OUT ULONG FAR* lpnetlong)
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{
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INT ErrorCode;
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PWSSOCKET Socket;
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DPRINT("WSAHtonl: %p, %lx, %p\n", s, hostlong, lpnetlong);
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/* Check for WSAStartup */
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if ((ErrorCode = WsQuickProlog()) == ERROR_SUCCESS)
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{
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/* Make sure we got a parameter */
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if (!lpnetlong)
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{
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/* Fail */
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SetLastError(WSAEFAULT);
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return SOCKET_ERROR;
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}
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/* Get the Socket Context */
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if ((Socket = WsSockGetSocket(s)))
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{
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/* Check which byte order to use */
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if (Socket->CatalogEntry->ProtocolInfo.iNetworkByteOrder ==
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LITTLEENDIAN)
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{
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/* No conversion needed */
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*lpnetlong = hostlong;
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}
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else
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{
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/* Use a swap */
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*lpnetlong = DN2H(hostlong);
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}
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/* Dereference the socket */
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WsSockDereference(Socket);
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/* Return success */
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return ERROR_SUCCESS;
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}
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else
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{
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/* Set the error code */
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ErrorCode = WSAENOTSOCK;
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}
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}
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/* Return with error */
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SetLastError(ErrorCode);
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return SOCKET_ERROR;
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}
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/*
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* @implemented
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*/
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INT
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WSAAPI
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WSAHtons(IN SOCKET s,
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IN USHORT hostshort,
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OUT USHORT FAR* lpnetshort)
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{
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INT ErrorCode;
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PWSSOCKET Socket;
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DPRINT("WSAHtons: %p, %lx, %p\n", s, hostshort, lpnetshort);
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/* Check for WSAStartup */
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if ((ErrorCode = WsQuickProlog()) == ERROR_SUCCESS)
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{
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/* Make sure we got a parameter */
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if (!lpnetshort)
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{
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/* Fail */
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SetLastError(WSAEFAULT);
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return SOCKET_ERROR;
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}
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/* Get the Socket Context */
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if ((Socket = WsSockGetSocket(s)))
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{
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/* Check which byte order to use */
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if (Socket->CatalogEntry->ProtocolInfo.iNetworkByteOrder ==
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LITTLEENDIAN)
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{
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/* No conversion needed */
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*lpnetshort = hostshort;
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}
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else
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{
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/* Use a swap */
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*lpnetshort = WN2H(hostshort);
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}
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/* Dereference the socket */
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WsSockDereference(Socket);
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/* Return success */
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return ERROR_SUCCESS;
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}
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else
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{
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/* Set the error code */
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ErrorCode = WSAENOTSOCK;
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}
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}
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/* Return with error */
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SetLastError(ErrorCode);
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return SOCKET_ERROR;
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}
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/*
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* @implemented
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*/
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INT
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WSAAPI
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WSANtohl(IN SOCKET s,
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IN ULONG netlong,
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OUT ULONG FAR* lphostlong)
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{
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INT ErrorCode;
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PWSSOCKET Socket;
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DPRINT("WSANtohl: %p, %lx, %p\n", s, netlong, lphostlong);
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/* Check for WSAStartup */
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if ((ErrorCode = WsQuickProlog()) == ERROR_SUCCESS)
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{
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/* Make sure we got a parameter */
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if (!lphostlong)
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{
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/* Fail */
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SetLastError(WSAEFAULT);
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return SOCKET_ERROR;
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}
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/* Get the Socket Context */
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if ((Socket = WsSockGetSocket(s)))
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{
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/* Check which byte order to use */
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if (Socket->CatalogEntry->ProtocolInfo.iNetworkByteOrder ==
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LITTLEENDIAN)
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{
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/* No conversion needed */
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*lphostlong = netlong;
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}
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else
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{
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/* Use a swap */
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*lphostlong = DN2H(netlong);
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}
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/* Dereference the socket */
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WsSockDereference(Socket);
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/* Return success */
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return ERROR_SUCCESS;
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}
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else
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{
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/* Set the error code */
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ErrorCode = WSAENOTSOCK;
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}
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}
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/* Return with error */
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SetLastError(ErrorCode);
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return SOCKET_ERROR;
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}
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/*
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* @implemented
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*/
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INT
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WSAAPI
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WSANtohs(IN SOCKET s,
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IN USHORT netshort,
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OUT USHORT FAR* lphostshort)
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{
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INT ErrorCode;
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PWSSOCKET Socket;
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DPRINT("WSANtohs: %p, %lx, %p\n", s, netshort, lphostshort);
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/* Check for WSAStartup */
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if ((ErrorCode = WsQuickProlog()) == ERROR_SUCCESS)
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{
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/* Make sure we got a parameter */
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if (!lphostshort)
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{
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/* Fail */
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SetLastError(WSAEFAULT);
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return SOCKET_ERROR;
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}
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/* Get the Socket Context */
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if ((Socket = WsSockGetSocket(s)))
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{
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/* Check which byte order to use */
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if (Socket->CatalogEntry->ProtocolInfo.iNetworkByteOrder ==
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LITTLEENDIAN)
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{
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/* No conversion needed */
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*lphostshort = netshort;
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}
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else
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{
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/* Use a swap */
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*lphostshort = WN2H(netshort);
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}
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/* Dereference the socket */
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WsSockDereference(Socket);
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/* Return success */
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return ERROR_SUCCESS;
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}
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else
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{
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/* Set the error code */
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ErrorCode = WSAENOTSOCK;
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}
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}
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/* Return with error */
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SetLastError(ErrorCode);
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return SOCKET_ERROR;
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}
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