苹果push的服务器端源码

/* File: ioSock.h Contains: SecureTransport sample I/O module, X sockets version Copyright: � Copyright 2002 Apple Computer, Inc. All rights reserved. Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in consideration of your agreement to the following terms, and your use, installation, modification or redistribution of this Apple software constitutes acceptance of these terms. If you do not agree with these terms, please do not use, install, modify or redistribute this Apple software. 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Change History (most recent first): 11/4/02 1.0d1 */ #include "ioSock.h" #include <errno.h> #include <stdio.h> #include <unistd.h> #include <sys/types.h> #include <netinet/in.h> #include <sys/socket.h> #include <netdb.h> #include <arpa/inet.h> #include <fcntl.h> #include <CoreServices/../Frameworks/CarbonCore.framework/Headers/MacErrors.h> #include <time.h> #include <strings.h> /* debugging for this module */ #define SSL_OT_DEBUG 1 /* log errors to stdout */ #define SSL_OT_ERRLOG 1 /* trace all low-level network I/O */ #define SSL_OT_IO_TRACE 0 /* if SSL_OT_IO_TRACE, only log non-zero length transfers */ #define SSL_OT_IO_TRACE_NZ 1 /* pause after each I/O (only meaningful if SSL_OT_IO_TRACE == 1) */ #define SSL_OT_IO_PAUSE 0 /* print a stream of dots while I/O pending */ #define SSL_OT_DOT 1 /* dump some bytes of each I/O (only meaningful if SSL_OT_IO_TRACE == 1) */ #define SSL_OT_IO_DUMP 0 #define SSL_OT_IO_DUMP_SIZE 256 /* general, not-too-verbose debugging */ #if SSL_OT_DEBUG #define dprintf(s) printf s #else #define dprintf(s) #endif /* errors --> stdout */ #if SSL_OT_ERRLOG #define eprintf(s) printf s #else #define eprintf(s) #endif /* enable nonblocking I/O - maybe should be an arg to MakeServerConnection() */ #define NON_BLOCKING 0 /* trace completion of every r/w */ #if SSL_OT_IO_TRACE static void tprintf( const char *str, UInt32 req, UInt32 act, const UInt8 *buf) { #if SSL_OT_IO_TRACE_NZ if(act == 0) { return; } #endif printf("%s(%d): moved (%d) bytes\n", str, req, act); #if SSL_OT_IO_DUMP { int i; for(i=0; i<act; i++) { printf("%02X ", buf[i]); if(i >= (SSL_OT_IO_DUMP_SIZE - 1)) { break; } } printf("\n"); } #endif #if SSL_OT_IO_PAUSE { char instr[20]; printf("CR to continue: "); gets(instr); } #endif } #else #define tprintf(str, req, act, buf) #endif /* SSL_OT_IO_TRACE */ /* * If SSL_OT_DOT, output a '.' every so often while waiting for * connection. This gives user a chance to do something else with the * UI. */ #if SSL_OT_DOT static time_t lastTime = (time_t)0; #define TIME_INTERVAL 3 static void outputDot() { time_t thisTime = time(0); if((thisTime - lastTime) >= TIME_INTERVAL) { printf("."); fflush(stdout); lastTime = thisTime; } } #else #define outputDot() #endif /* * One-time only init. */ void initSslOt() { } /* * Connect to server. */ OSStatus MakeServerConnection( const char *hostName, int port, otSocket *socketNo, // RETURNED PeerSpec *peer) // RETURNED { struct sockaddr_in addr; struct hostent *ent; struct in_addr host; int sock = 0; *socketNo = NULL; if (hostName[0] >= '0' && hostName[0] <= '9') { host.s_addr = inet_addr(hostName); } else { ent = gethostbyname(hostName); if (!ent) { printf("gethostbyname failed\n"); return ioErr; } memcpy(&host, ent->h_addr, sizeof(struct in_addr)); } sock = socket(AF_INET, SOCK_STREAM, 0); addr.sin_addr = host; addr.sin_port = htons((u_short)port); addr.sin_family = AF_INET; if (connect(sock, (struct sockaddr *) &addr, sizeof(struct sockaddr_in)) != 0) { printf("connect returned error\n"); return ioErr; } #if NON_BLOCKING /* OK to do this after connect? */ { int rtn = fcntl(sock, F_SETFL, O_NONBLOCK); if(rtn == -1) { perror("fctnl(O_NONBLOCK)"); return ioErr; } } #endif /* NON_BLOCKING*/ peer->ipAddr = addr.sin_addr.s_addr; peer->port = htons((u_short)port); *socketNo = (otSocket)sock; return noErr; } /* * Set up an otSocket to listen for client connections. Call once, then * use multiple AcceptClientConnection calls. */ OSStatus ListenForClients( int port, otSocket *socketNo) // RETURNED { struct sockaddr_in addr; struct hostent *ent; int len; int sock; sock = socket(AF_INET, SOCK_STREAM, 0); if(sock < 1) { perror("socket"); return ioErr; } ent = gethostbyname("localhost"); if (!ent) { perror("gethostbyname"); return ioErr; } memcpy(&addr.sin_addr, ent->h_addr, sizeof(struct in_addr)); addr.sin_port = htons((u_short)port); addr.sin_addr.s_addr = INADDR_ANY; addr.sin_family = AF_INET; len = sizeof(struct sockaddr_in); if (bind(sock, (struct sockaddr *) &addr, len)) { perror("bind"); return ioErr; } if (listen(sock, 1)) { perror("listen"); return ioErr; } *socketNo = (otSocket)sock; return noErr; } /* * Accept a client connection. */ /* * Currently we always get back a different peer port number on successive * connections, no matter what the client is doing. To test for resumable * session support, forc