+++ /dev/null
-/*
- * Copyright (c) 2003 Ben Harris
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use,
- * copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following
- * conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
- * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-/*
- * mtcpnet.c - MacTCP interface
- */
-
-#if !TARGET_API_MAC_CARBON
-
-#include <MacTypes.h>
-#include <Devices.h>
-#include <Endian.h>
-#include <Folders.h>
-#include <MacTCP.h>
-#include <MixedMode.h>
-#include <Resources.h>
-
-#include <assert.h>
-
-#define DEFINE_PLUG_METHOD_MACROS
-#include "putty.h"
-#include "network.h"
-#include "mac.h"
-
-/*
- * The following structures are documented as being in
- * <AddressXlation.h>, but that isn't shipped with Universal
- * Interfaces, and it's easier to define them here than to require
- * people to download yet another SDK.
- */
-
-static OSErr OpenResolver(char *);
-static OSErr CloseResolver(void);
-
-enum {
- OPENRESOLVER = 1,
- CLOSERESOLVER,
- STRTOADDR,
- ADDRTOSTR,
- ENUMCACHE,
- ADDRTONAME,
- HXINFO,
- MXINFO
-};
-
-#define NUM_ALT_ADDRS 4
-
-typedef struct hostInfo {
- int rtnCode;
- char cname[255];
- unsigned long addr[NUM_ALT_ADDRS];
-};
-
-typedef CALLBACK_API(void, ResultProcPtr)(struct hostInfo *, char *);
-typedef STACK_UPP_TYPE(ResultProcPtr) ResultUPP;
-enum { uppResultProcInfo = kPascalStackBased
- | STACK_ROUTINE_PARAMETER(1, SIZE_CODE(sizeof(struct hostInfo*)))
- | STACK_ROUTINE_PARAMETER(2, SIZE_CODE(sizeof(char *)))
-};
-#define NewResultUPP(userRoutine) \
- (ResultUPP)NewRoutineDescriptor((ProcPtr)(userRoutine), \
- uppResultProcInfo, \
- GetCurrentArchitecture())
-#define DisposeResultUPP(userUPP) DisposeRoutineDescriptor(userUPP)
-
-static OSErr StrToAddr(char *, struct hostInfo *, ResultUPP *, char *);
-
-typedef CALLBACK_API_C(OSErr, OpenResolverProcPtr)(UInt32, char *);
-typedef STACK_UPP_TYPE(OpenResolverProcPtr) OpenResolverUPP;
-enum { uppOpenResolverProcInfo = kCStackBased
- | RESULT_SIZE(SIZE_CODE(sizeof(OSErr)))
- | STACK_ROUTINE_PARAMETER(1, SIZE_CODE(sizeof(UInt32)))
- | STACK_ROUTINE_PARAMETER(2, SIZE_CODE(sizeof(char*)))
-};
-#define InvokeOpenResolverUPP(selector, fileName, userUPP) \
- CALL_TWO_PARAMETER_UPP((userUPP), uppOpenResolverProcInfo, \
- (selector), (fileName))
-
-typedef CALLBACK_API_C(OSErr, CloseResolverProcPtr)(UInt32);
-typedef STACK_UPP_TYPE(CloseResolverProcPtr) CloseResolverUPP;
-enum { uppCloseResolverProcInfo = kCStackBased
- | RESULT_SIZE(SIZE_CODE(sizeof(OSErr)))
- | STACK_ROUTINE_PARAMETER(1, SIZE_CODE(sizeof(UInt32)))
-};
-#define InvokeCloseResolverUPP(selector, userUPP) \
- CALL_ONE_PARAMETER_UPP((userUPP), uppCloseResolverProcInfo, (selector))
-
-typedef CALLBACK_API_C(OSErr, StrToAddrProcPtr)(UInt32, char *,
- struct hostInfo *, ResultUPP,
- char *);
-typedef STACK_UPP_TYPE(StrToAddrProcPtr) StrToAddrUPP;
-enum { uppStrToAddrProcInfo = kCStackBased
- | RESULT_SIZE(SIZE_CODE(sizeof(OSErr)))
- | STACK_ROUTINE_PARAMETER(1, SIZE_CODE(sizeof(UInt32)))
- | STACK_ROUTINE_PARAMETER(2, SIZE_CODE(sizeof(char *)))
- | STACK_ROUTINE_PARAMETER(3, SIZE_CODE(sizeof(struct hostInfo *)))
- | STACK_ROUTINE_PARAMETER(4, SIZE_CODE(sizeof(ResultUPP)))
- | STACK_ROUTINE_PARAMETER(5, SIZE_CODE(sizeof(char *)))
-};
-#define InvokeStrToAddrUPP(selector, hostName, hostInfoPtr, ResultProc, \
- userDataPtr, userUPP) \
- CALL_FIVE_PARAMETER_UPP((userUPP), uppStrToAddrProcInfo, (selector),\
- (hostName), (hostInfoPtr), (ResultProc), \
- (userDataPtr))
-#define StrToAddr(hostName, hostInfoPtr, ResultProc, userDataPtr) \
- InvokeStrToAddrUPP(STRTOADDR, hostName, hostInfoPtr, ResultProc, \
- userDataPtr, (StrToAddrUPP)*mactcp.dnr_handle)
-
-typedef CALLBACK_API_C(OSErr, AddrToStrProcPtr)(UInt32, unsigned long, char *);
-typedef STACK_UPP_TYPE(AddrToStrProcPtr) AddrToStrUPP;
-enum { uppAddrToStrProcInfo = kCStackBased
- | RESULT_SIZE(SIZE_CODE(sizeof(OSErr)))
- | STACK_ROUTINE_PARAMETER(1, SIZE_CODE(sizeof(UInt32)))
- | STACK_ROUTINE_PARAMETER(2, SIZE_CODE(sizeof(unsigned long)))
- | STACK_ROUTINE_PARAMETER(3, SIZE_CODE(sizeof(char *)))
-};
-#define InvokeAddrToStrUPP(selector, addr, addrStr, userUPP) \
- CALL_THREE_PARAMETER_UPP((userUPP), uppAddrToStrProcInfo, (selector),\
- (addr), (addrStr))
-#define AddrToStr(addr, addrStr) \
- InvokeAddrToStrUPP(ADDRTOSTR, addr, addrStr, \
- (AddrToStrUPP)*mactcp.dnr_handle)
-
-/* End of AddressXlation.h bits */
-
-/* TCP connection states, mysteriously missing from <MacTCP.h> */
-#define TCPS_CLOSED 0
-#define TCPS_LISTEN 2
-#define TCPS_SYN_RECEIVED 4
-#define TCPS_SYN_SENT 6
-#define TCPS_ESTABLISHED 8
-#define TCPS_FIN_WAIT_1 10
-#define TCPS_FIN_WAIT_2 12
-#define TCPS_CLOSE_WAIT 14
-#define TCPS_CLOSING 16
-#define TCPS_LAST_ACK 18
-#define TCPS_TIME_WAIT 20
-
-struct Socket_tag {
- struct socket_function_table *fn;
- /* the above variable absolutely *must* be the first in this structure */
- StreamPtr s;
- OSErr err;
- Plug plug;
- void *private_ptr;
- bufchain output_data;
- int connected;
- int writable;
- int frozen; /* this causes readability notifications to be ignored */
- int frozen_readable; /* this means we missed at least one readability
- * notification while we were frozen */
- int localhost_only; /* for listening sockets */
- char oobdata[1];
- int sending_oob;
- int oobpending; /* is there OOB data available to read? */
- int oobinline;
- int pending_error; /* in case send() returns error */
- int listener;
- struct Socket_tag *next;
- struct Socket_tag **prev;
-};
-
-/*
- * We used to typedef struct Socket_tag *Socket.
- *
- * Since we have made the networking abstraction slightly more
- * abstract, Socket no longer means a tcp socket (it could mean
- * an ssl socket). So now we must use Actual_Socket when we know
- * we are talking about a tcp socket.
- */
-typedef struct Socket_tag *Actual_Socket;
-
-struct SockAddr_tag {
- int resolved;
- struct hostInfo hostinfo;
- char hostname[512];
-};
-
-/* Global variables */
-static struct {
- Handle dnr_handle;
- int initialised;
- short refnum;
- ProcessSerialNumber self;
- Actual_Socket socklist;
-} mactcp;
-
-static pascal void mactcp_lookupdone(struct hostInfo *hi, char *cookie);
-static pascal void mactcp_asr(StreamPtr, unsigned short, Ptr, unsigned short,
- struct ICMPReport *);
-static Plug mactcp_plug(Socket, Plug);
-static void mactcp_flush(Socket);
-static void mactcp_close(Socket);
-static int mactcp_write(Socket, char const *, int);
-static int mactcp_write_oob(Socket, char const*, int);
-static void mactcp_set_private_ptr(Socket, void *);
-static void *mactcp_get_private_ptr(Socket);
-static const char *mactcp_socket_error(Socket);
-static void mactcp_set_frozen(Socket, int);
-
-static void mactcp_recv(Actual_Socket s, size_t len);
-
-/*
- * Initialise MacTCP.
- * This should be called once before any TCP connection is opened.
- */
-
-OSErr mactcp_init(void)
-{
- OSErr err;
-
- /*
- * IM:Devices describes a convoluted way of finding a spare unit
- * number to open a driver on before calling OpenDriver. Happily,
- * the MacTCP INIT ensures that .IPP is already open (and hence
- * has a valid unit number already) so we don't need to go through
- * all that. (MacTCP Programmer's Guide p6)
- */
- err = OpenDriver("\p.IPP", &mactcp.refnum);
- if (err != noErr) return err;
- err = OpenResolver(NULL);
- if (err != noErr) return err;
-
- mactcp.initialised = TRUE;
- return noErr;
-}
-
-void mactcp_cleanup(void)
-{
- Actual_Socket s, next;
-
- /*
- * Eventually, PuTTY should close down each session as it exits,
- * so there should be no sockets left when we get here. Still,
- * better safe than sorry.
- *
- * XXX What about in-flight aync I/O (when we support that)?
- */
- for (s = mactcp.socklist; s != NULL; s = next) {
- next = s->next; /* s is about to vanish */
- mactcp_close(&s->fn);
- }
-
- /*
- * When we get async DNS, we have to wait for any outstanding
- * requests to complete here before exiting.
- */
- CloseResolver();
- mactcp.initialised = FALSE;
-}
-
-static ResultUPP mactcp_lookupdone_upp;
-
-SockAddr mactcp_namelookup(char const *host, char **canonicalname)
-{
- SockAddr ret = snew(struct SockAddr_tag);
- OSErr err;
- volatile int done = FALSE;
- char *realhost;
- int realhostlen;
-
- /* Clear the structure. */
- memset(ret, 0, sizeof(struct SockAddr_tag));
- if (mactcp_lookupdone_upp == NULL)
- mactcp_lookupdone_upp = NewResultUPP(&mactcp_lookupdone);
- /* Casting away const -- hope StrToAddr is sensible */
- err = StrToAddr((char *)host, &ret->hostinfo, mactcp_lookupdone_upp,
- (char *)&done);
- /*
- * PuTTY expects DNS lookups to be synchronous (see bug
- * "async-dns"), so we pretend they are.
- */
- if (err == cacheFault)
- while (!done)
- continue;
- ret->resolved = TRUE;
-
- if (ret->hostinfo.rtnCode == noErr) {
- realhost = ret->hostinfo.cname;
- /* MacTCP puts trailing dots on canonical names. */
- realhostlen = strlen(realhost);
- if (realhost[realhostlen - 1] == '.')
- realhost[realhostlen - 1] = '\0';
- } else
- realhost = "";
- *canonicalname = snewn(1 + strlen(realhost), char);
- strcpy(*canonicalname, realhost);
- return ret;
-}
-
-static pascal void mactcp_lookupdone(struct hostInfo *hi, char *cookie)
-{
- volatile int *donep = (int *)cookie;
-
- *donep = TRUE;
-}
-
-SockAddr mactcp_nonamelookup(char const *host)
-{
- SockAddr ret = snew(struct SockAddr_tag);
-
- ret->resolved = FALSE;
- ret->hostinfo.rtnCode = noErr;
- ret->hostname[0] = '\0';
- strncat(ret->hostname, host, lenof(ret->hostname) - 1);
- return ret;
-}
-
-void mactcp_getaddr(SockAddr addr, char *buf, int buflen)
-{
- char mybuf[16];
- OSErr err;
-
- if (addr->resolved) {
- /* XXX only return first address */
- err = AddrToStr(addr->hostinfo.addr[0], mybuf);
- buf[0] = '\0';
- if (err != noErr)
- strncat(buf, mybuf, buflen - 1);
- } else {
- buf[0] = '\0';
- strncat(buf, addr->hostname, buflen - 1);
- }
-}
-
-/* I think "local" here really means "loopback" */
-
-int mactcp_hostname_is_local(char *name)
-{
-
- return !strcmp(name, "localhost");
-}
-
-int mactcp_address_is_local(SockAddr addr)
-{
- int i;
-
- if (addr->resolved)
- for (i = 0; i < NUM_ALT_ADDRS; i++)
- if (addr->hostinfo.addr[i] & 0xff000000 == 0x7f000000)
- return TRUE;
- return FALSE;
-}
-
-int mactcp_addrtype(SockAddr addr)
-{
-
- if (addr->resolved)
- return ADDRTYPE_IPV4;
- return ADDRTYPE_NAME;
-}
-
-void mactcp_addrcopy(SockAddr addr, char *buf)
-{
-
- /* XXX only return first address */
- memcpy(buf, &addr->hostinfo.addr[0], 4);
-}
-
-void mactcp_addr_free(SockAddr addr)
-{
-
- sfree(addr);
-}
-
-static Plug mactcp_plug(Socket sock, Plug p)
-{
- Actual_Socket s = (Actual_Socket) sock;
- Plug ret = s->plug;
-
- if (p)
- s->plug = p;
- return ret;
-}
-
-static void mactcp_flush(Socket s)
-{
-
- fatalbox("mactcp_flush");
-}
-
-Socket mactcp_register(void *sock, Plug plug)
-{
-
- fatalbox("mactcp_register");
-}
-
-static TCPNotifyUPP mactcp_asr_upp;
-
-Socket mactcp_new(SockAddr addr, int port, int privport, int oobinline,
- int nodelay, int keepalive, Plug plug)
-{
- static struct socket_function_table fn_table = {
- mactcp_plug,
- mactcp_close,
- mactcp_write,
- mactcp_write_oob,
- mactcp_flush,
- mactcp_set_private_ptr,
- mactcp_get_private_ptr,
- mactcp_set_frozen,
- mactcp_socket_error
- };
- TCPiopb pb;
- UDPiopb upb;
- Actual_Socket ret;
- ip_addr dstaddr;
- size_t buflen;
-
- /*
- * Create Socket structure.
- */
- ret = snew(struct Socket_tag);
- ret->s = 0;
- ret->fn = &fn_table;
- ret->err = noErr;
- ret->plug = plug;
- bufchain_init(&ret->output_data);
- ret->connected = 0; /* to start with */
- ret->writable = 0; /* to start with */
- ret->sending_oob = 0;
- ret->frozen = 0;
- ret->frozen_readable = 0;
- ret->localhost_only = 0; /* unused, but best init anyway */
- ret->pending_error = 0;
- ret->oobinline = oobinline;
- ret->oobpending = FALSE;
- ret->listener = 0;
-
- dstaddr = addr->hostinfo.addr[0]; /* XXX should try all of them */
- /*
- * Create a TCP stream.
- *
- * MacTCP requires us to provide it with some buffer memory. Page
- * 31 of the Programmer's Guide says it should be a minimum of
- * 4*MTU+1024. Page 36 says a minimum of 4096 bytes. Assume
- * they're both correct.
- */
- assert(addr->resolved);
- upb.ioCRefNum = mactcp.refnum;
- upb.csCode = UDPMaxMTUSize;
- upb.csParam.mtu.remoteHost = dstaddr;
- upb.csParam.mtu.userDataPtr = NULL;
- ret->err = PBControlSync((ParmBlkPtr)&upb);
- if (ret->err != noErr) return (Socket)ret;
-
- buflen = upb.csParam.mtu.mtuSize * 4 + 1024;
- if (buflen < 4096) buflen = 4096;
- if (mactcp_asr_upp == NULL)
- mactcp_asr_upp = NewTCPNotifyUPP(&mactcp_asr);
- GetCurrentProcess(&mactcp.self);
- pb.ioCRefNum = mactcp.refnum;
- pb.csCode = TCPCreate;
- pb.csParam.create.rcvBuff = snewn(buflen, char);
- pb.csParam.create.rcvBuffLen = buflen;
- pb.csParam.create.notifyProc = mactcp_asr_upp;
- pb.csParam.create.userDataPtr = (Ptr)ret;
- ret->err = PBControlSync((ParmBlkPtr)&pb);
- if (ret->err != noErr) return (Socket)ret;
- ret->s = pb.tcpStream;
-
- /*
- * Open the connection.
- */
- pb.ioCRefNum = mactcp.refnum;
- pb.csCode = TCPActiveOpen;
- pb.tcpStream = ret->s;
- pb.csParam.open.validityFlags = 0;
- pb.csParam.open.remoteHost = dstaddr;
- pb.csParam.open.remotePort = port;
- pb.csParam.open.localPort = privport ? 1023 : 0;
- pb.csParam.open.dontFrag = FALSE;
- pb.csParam.open.timeToLive = 0;
- pb.csParam.open.security = 0;
- pb.csParam.open.optionCnt = 0;
- pb.csParam.open.userDataPtr = (Ptr)ret;
- while (1) {
- ret->err = PBControlSync((ParmBlkPtr)&pb);
- if (!privport || ret->err != duplicateSocket)
- break;
- pb.csParam.open.localPort--;
- if (pb.csParam.open.localPort == 0)
- break;
- }
-
- if (ret->err != noErr) return (Socket)ret;
-
- ret->connected = TRUE;
- ret->writable = TRUE;
-
- /* Add this to the list of all sockets */
- ret->next = mactcp.socklist;
- ret->prev = &mactcp.socklist;
- if (ret->next != NULL)
- ret->next->prev = &ret->next;
- mactcp.socklist = ret;
-
- sk_addr_free(addr); /* don't need this anymore */
-
- return (Socket)ret;
-}
-
-Socket mactcp_newlistener(char *srcaddr, int port, Plug plug,
- int local_host_only, int address_family)
-{
-
- fatalbox("mactcp_newlistener");
-}
-
-static void mactcp_close(Socket sock)
-{
- Actual_Socket s = (Actual_Socket)sock;
- TCPiopb pb;
-
- /*
- * TCPClose is equivalent to shutdown(fd, SHUT_WR), and hence
- * leaves the Rx side open, while TCPAbort seems rather vicious,
- * throwing away Tx data that haven't been ACKed yet. We do both
- * in succession.
- */
- pb.ioCRefNum = mactcp.refnum;
- pb.csCode = TCPClose;
- pb.tcpStream = s->s;
- pb.csParam.close.validityFlags = 0;
- pb.csParam.close.userDataPtr = (Ptr)s;
- s->err = PBControlSync((ParmBlkPtr)&pb);
- /* Not much we can do about an error anyway. */
-
- pb.ioCRefNum = mactcp.refnum;
- pb.csCode = TCPAbort;
- pb.tcpStream = s->s;
- pb.csParam.abort.userDataPtr = (Ptr)s;
- s->err = PBControlSync((ParmBlkPtr)&pb);
- /* Even less we can do about an error here. */
-
- pb.ioCRefNum = mactcp.refnum;
- pb.csCode = TCPRelease;
- pb.tcpStream = s->s;
- pb.csParam.create.userDataPtr = (Ptr)s;
- s->err = PBControlSync((ParmBlkPtr)&pb);
- if (s->err == noErr)
- sfree(pb.csParam.create.rcvBuff);
-
- /* Unhitch from list of sockets */
- *s->prev = s->next;
- if (s->next != NULL)
- s->next->prev = s->prev;
-
- sfree(s);
-}
-
-static int mactcp_write(Socket sock, char const *buf, int len)
-{
- Actual_Socket s = (Actual_Socket) sock;
- wdsEntry wds[2];
- TCPiopb pb;
-
- /*
- * Casting away const from buf should be safe -- MacTCP won't
- * write to it.
- */
- wds[0].length = len;
- wds[0].ptr = (char *)buf;
- wds[1].length = 0;
-
- pb.ioCRefNum = mactcp.refnum;
- pb.csCode = TCPSend;
- pb.tcpStream = s->s;
- pb.csParam.send.validityFlags = 0;
- pb.csParam.send.pushFlag = TRUE; /* XXX we want it to return. */
- pb.csParam.send.urgentFlag = 0;
- pb.csParam.send.wdsPtr = (Ptr)wds;
- pb.csParam.send.userDataPtr = (Ptr)s;
- s->err = PBControlSync((ParmBlkPtr)&pb);
- return 0;
-}
-
-static int mactcp_write_oob(Socket sock, char const *buf, int len)
-{
-
- fatalbox("mactcp_write_oob");
-}
-
-static pascal void mactcp_asr(StreamPtr str, unsigned short event, Ptr cookie,
- unsigned short termin_reason,
- struct ICMPReport *icmp)
-{
-
- WakeUpProcess(&mactcp.self);
-}
-
-/*
- * Called from our event loop if there's work to do.
- */
-void mactcp_poll(void)
-{
- Actual_Socket s, next;
- TCPiopb pb;
-
- for (s = mactcp.socklist; s != NULL; s = next) {
- next = s->next;
- do {
- pb.ioCRefNum = mactcp.refnum;
- pb.csCode = TCPStatus;
- pb.tcpStream = s->s;
- pb.csParam.status.userDataPtr = (Ptr)s;
- s->err = PBControlSync((ParmBlkPtr)&pb);
- if (s->err != noErr)
- goto next_socket;
- if (pb.csParam.status.amtUnreadData == 0)
- break;
- mactcp_recv(s, pb.csParam.status.amtUnreadData);
- } while (TRUE);
- switch (pb.csParam.status.connectionState) {
- case TCPS_CLOSE_WAIT:
- /* Remote end has sent us a FIN */
- plug_closing(s->plug, NULL, 0, 0);
- }
- next_socket:
- ;
- }
-}
-
-static void mactcp_recv(Actual_Socket s, size_t len)
-{
- rdsEntry rds[2];
- TCPiopb pb;
-
- if (s->frozen) return;
-
- while (len > 0) {
- pb.ioCRefNum = mactcp.refnum;
- pb.csCode = TCPNoCopyRcv;
- pb.tcpStream = s->s;
- pb.csParam.receive.commandTimeoutValue = 0;
- pb.csParam.receive.rdsPtr = (Ptr)rds;
- pb.csParam.receive.rdsLength = lenof(rds) - 1;
- pb.csParam.receive.userDataPtr = (Ptr)s;
- s->err = PBControlSync((ParmBlkPtr)&pb);
- if (s->err != noErr)
- return;
- plug_receive(s->plug, 0, rds[0].ptr, rds[0].length);
- len -= rds[0].length;
- pb.csCode = TCPRcvBfrReturn;
- s->err = PBControlSync((ParmBlkPtr)&pb);
- if (s->err != noErr)
- return;
- }
-}
-
-/*
- * Each socket abstraction contains a `void *' private field in
- * which the client can keep state.
- */
-static void mactcp_set_private_ptr(Socket sock, void *ptr)
-{
- Actual_Socket s = (Actual_Socket) sock;
- s->private_ptr = ptr;
-}
-
-static void *mactcp_get_private_ptr(Socket sock)
-{
- Actual_Socket s = (Actual_Socket) sock;
- return s->private_ptr;
-}
-
-/*
- * Special error values are returned from mactcp_namelookup and
- * mactcp_new if there's a problem. These functions extract an error
- * message, or return NULL if there's no problem.
- */
-char *mactcp_addr_error(SockAddr addr)
-{
- static char buf[64];
-
- switch (addr->hostinfo.rtnCode) {
- case noErr:
- return NULL;
- case nameSyntaxErr:
- return "Name syntax error";
- case noNameServer:
- return "No name server found";
- case authNameErr:
- return "Domain name does not exist";
- case noAnsErr:
- return "No answer from domain name server";
- case dnrErr:
- return "Domain name server returned an error";
- case outOfMemory:
- return "Out of memory";
- default:
- sprintf(buf, "Unknown DNR error %d", addr->hostinfo.rtnCode);
- return buf;
- }
-}
-
-static const char *mactcp_socket_error(Socket sock)
-{
- static char buf[64];
- Actual_Socket s = (Actual_Socket) sock;
-
- switch (s->err) {
- case noErr:
- return NULL;
- case insufficientResources:
- return "Insufficient resources to open TCP stream";
- case duplicateSocket:
- return "Duplicate socket";
- case openFailed:
- return "Connection failed while opening";
- default:
- sprintf(buf, "Unknown MacTCP error %d", s->err);
- return buf;
- }
-}
-
-static void mactcp_set_frozen(Socket sock, int is_frozen)
-{
- Actual_Socket s = (Actual_Socket) sock;
-
- if (s->frozen == is_frozen)
- return;
- s->frozen = is_frozen;
-}
-
-/*
- * Bits below here would usually be in dnr.c, shipped with the MacTCP
- * SDK, but its convenient not to require that, and since we assume
- * System 7 we can actually simplify things a lot.
- */
-
-static OSErr OpenResolver(char *hosts_file)
-{
- short vrefnum;
- long dirid;
- HParamBlockRec pb;
- Str255 filename;
- OSErr err;
- int fd;
- Handle dnr_handle;
-
- if (mactcp.dnr_handle != NULL)
- return noErr;
-
- err = FindFolder(kOnSystemDisk, kControlPanelFolderType, FALSE, &vrefnum,
- &dirid);
- if (err != noErr) return err;
-
- /*
- * Might be better to use PBCatSearch here, but it's not always
- * available.
- */
- pb.fileParam.ioCompletion = NULL;
- pb.fileParam.ioNamePtr = filename;
- pb.fileParam.ioVRefNum = vrefnum;
- pb.fileParam.ioFDirIndex = 1;
- pb.fileParam.ioDirID = dirid;
- fd = -1;
-
- while (PBHGetFInfoSync(&pb) == noErr) {
- if (pb.fileParam.ioFlFndrInfo.fdType == 'cdev' &&
- pb.fileParam.ioFlFndrInfo.fdCreator == 'ztcp') {
- fd = HOpenResFile(vrefnum, dirid, filename, fsRdPerm);
- if (fd == -1) continue;
- dnr_handle = Get1IndResource('dnrp', 1);
- if (dnr_handle != NULL)
- break;
- CloseResFile(fd);
- fd = -1;
- }
- pb.fileParam.ioDirID = dirid;
- pb.fileParam.ioFDirIndex++;
- }
- if (fd == -1)
- return fnfErr;
-
- DetachResource(dnr_handle);
- CloseResFile(fd);
-
- MoveHHi(dnr_handle);
- HLock(dnr_handle);
-
- err = InvokeOpenResolverUPP(OPENRESOLVER, hosts_file,
- (OpenResolverUPP)*dnr_handle);
- if (err != noErr) {
- HUnlock(dnr_handle);
- DisposeHandle(dnr_handle);
- return err;
- }
-
- mactcp.dnr_handle = dnr_handle;
- return noErr;
-}
-
-OSErr CloseResolver(void)
-{
- Handle dnr_handle = mactcp.dnr_handle;
- OSErr err;
-
- if (mactcp.dnr_handle == NULL)
- return notOpenErr;
-
- err = InvokeCloseResolverUPP(CLOSERESOLVER,
- (CloseResolverUPP)*mactcp.dnr_handle);
- if (err != noErr)
- return err;
-
- mactcp.dnr_handle = NULL;
- HUnlock(dnr_handle);
- DisposeHandle(dnr_handle);
- return noErr;
-}
-
-#endif
-
-/*
- * Local Variables:
- * c-file-style: "simon"
- * End:
- */
projects / u / mdw / putty / blobdiff