/* win32sck.c * * (c) 1995 Microsoft Corporation. All rights reserved. * Developed by hip communications inc. * Portions (c) 1993 Intergraph Corporation. All rights reserved. * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. */ #define WIN32IO_IS_STDIO #define WIN32SCK_IS_STDSCK #define WIN32_LEAN_AND_MEAN #define PERLIO_NOT_STDIO 0 #ifdef __GNUC__ #define Win32_Winsock #endif #include #include #include "EXTERN.h" #include "perl.h" #include "Win32iop.h" #include #include #include #include #include /* thanks to Beverly Brown (beverly@datacube.com) */ #ifdef USE_SOCKETS_AS_HANDLES # define OPEN_SOCKET(x) win32_open_osfhandle(x,O_RDWR|O_BINARY) # define TO_SOCKET(x) _get_osfhandle(x) #else # define OPEN_SOCKET(x) (x) # define TO_SOCKET(x) (x) #endif /* USE_SOCKETS_AS_HANDLES */ #define StartSockets() \ STMT_START { \ if (!wsock_started) \ start_sockets(); \ } STMT_END #define SOCKET_TEST(x, y) \ STMT_START { \ StartSockets(); \ if((x) == (y)) \ errno = WSAGetLastError(); \ } STMT_END #define SOCKET_TEST_ERROR(x) SOCKET_TEST(x, SOCKET_ERROR) static struct servent* win32_savecopyservent(struct servent*d, struct servent*s, const char *proto); static int wsock_started = 0; EXTERN_C void EndSockets(void) { if (wsock_started) WSACleanup(); } void start_sockets(void) { dTHX; unsigned short version; WSADATA retdata; int ret; /* * initalize the winsock interface and insure that it is * cleaned up at exit. */ version = 0x2; if(ret = WSAStartup(version, &retdata)) Perl_croak_nocontext("Unable to locate winsock library!\n"); if(retdata.wVersion != version) Perl_croak_nocontext("Could not find version 2.0 of winsock dll\n"); /* atexit((void (*)(void)) EndSockets); */ wsock_started = 1; } #ifndef USE_SOCKETS_AS_HANDLES #undef fdopen FILE * my_fdopen(int fd, char *mode) { FILE *fp; char sockbuf[256]; int optlen = sizeof(sockbuf); int retval; if (!wsock_started) return(fdopen(fd, mode)); retval = getsockopt((SOCKET)fd, SOL_SOCKET, SO_TYPE, sockbuf, &optlen); if(retval == SOCKET_ERROR && WSAGetLastError() == WSAENOTSOCK) { return(fdopen(fd, mode)); } /* * If we get here, then fd is actually a socket. */ Newxz(fp, 1, FILE); /* XXX leak, good thing this code isn't used */ if(fp == NULL) { errno = ENOMEM; return NULL; } fp->_file = fd; if(*mode == 'r') fp->_flag = _IOREAD; else fp->_flag = _IOWRT; return fp; } #endif /* USE_SOCKETS_AS_HANDLES */ u_long win32_htonl(u_long hostlong) { StartSockets(); return htonl(hostlong); } u_short win32_htons(u_short hostshort) { StartSockets(); return htons(hostshort); } u_long win32_ntohl(u_long netlong) { StartSockets(); return ntohl(netlong); } u_short win32_ntohs(u_short netshort) { StartSockets(); return ntohs(netshort); } SOCKET win32_accept(SOCKET s, struct sockaddr *addr, int *addrlen) { SOCKET r; SOCKET_TEST((r = accept(TO_SOCKET(s), addr, addrlen)), INVALID_SOCKET); return OPEN_SOCKET(r); } int win32_bind(SOCKET s, const struct sockaddr *addr, int addrlen) { int r; SOCKET_TEST_ERROR(r = bind(TO_SOCKET(s), addr, addrlen)); return r; } int win32_connect(SOCKET s, const struct sockaddr *addr, int addrlen) { int r; SOCKET_TEST_ERROR(r = connect(TO_SOCKET(s), addr, addrlen)); return r; } int win32_getpeername(SOCKET s, struct sockaddr *addr, int *addrlen) { int r; SOCKET_TEST_ERROR(r = getpeername(TO_SOCKET(s), addr, addrlen)); return r; } int win32_getsockname(SOCKET s, struct sockaddr *addr, int *addrlen) { int r; SOCKET_TEST_ERROR(r = getsockname(TO_SOCKET(s), addr, addrlen)); return r; } int win32_getsockopt(SOCKET s, int level, int optname, char *optval, int *optlen) { int r; SOCKET_TEST_ERROR(r = getsockopt(TO_SOCKET(s), level, optname, optval, optlen)); return r; } int win32_ioctlsocket(SOCKET s, long cmd, u_long *argp) { int r; SOCKET_TEST_ERROR(r = ioctlsocket(TO_SOCKET(s), cmd, argp)); return r; } int win32_listen(SOCKET s, int backlog) { int r; SOCKET_TEST_ERROR(r = listen(TO_SOCKET(s), backlog)); return r; } int win32_recv(SOCKET s, char *buf, int len, int flags) { int r; SOCKET_TEST_ERROR(r = recv(TO_SOCKET(s), buf, len, flags)); return r; } int win32_recvfrom(SOCKET s, char *buf, int len, int flags, struct sockaddr *from, int *fromlen) { int r; int frombufsize = *fromlen; SOCKET_TEST_ERROR(r = recvfrom(TO_SOCKET(s), buf, len, flags, from, fromlen)); /* Winsock's recvfrom() only returns a valid 'from' when the socket * is connectionless. Perl expects a valid 'from' for all types * of sockets, so go the extra mile. */ if (r != SOCKET_ERROR && frombufsize == *fromlen) (void)win32_getpeername(s, from, fromlen); return r; } /* select contributed by Vincent R. Slyngstad (vrs@ibeam.intel.com) */ int win32_select(int nfds, Perl_fd_set* rd, Perl_fd_set* wr, Perl_fd_set* ex, const struct timeval* timeout) { int r; #ifdef USE_SOCKETS_AS_HANDLES int i, fd, save_errno = errno; FD_SET nrd, nwr, nex; /* winsock seems incapable of dealing with all three null fd_sets, * so do the (millisecond) sleep as a special case */ if (!(rd || wr || ex)) { if (timeout) Sleep(timeout->tv_sec * 1000 + timeout->tv_usec / 1000); /* do the best we can */ else Sleep(UINT_MAX); return 0; } StartSockets(); FD_ZERO(&nrd); FD_ZERO(&nwr); FD_ZERO(&nex); for (i = 0; i < nfds; i++) { if (rd && PERL_FD_ISSET(i,rd)) { fd = TO_SOCKET(i); FD_SET((unsigned)fd, &nrd); } if (wr && PERL_FD_ISSET(i,wr)) { fd = TO_SOCKET(i); FD_SET((unsigned)fd, &nwr); } if (ex && PERL_FD_ISSET(i,ex)) { fd = TO_SOCKET(i); FD_SET((unsigned)fd, &nex); } } errno = save_errno; SOCKET_TEST_ERROR(r = select(nfds, &nrd, &nwr, &nex, timeout)); save_errno = errno; for (i = 0; i < nfds; i++) { if (rd && PERL_FD_ISSET(i,rd)) { fd = TO_SOCKET(i); if (!FD_ISSET(fd, &nrd)) PERL_FD_CLR(i,rd); } if (wr && PERL_FD_ISSET(i,wr)) { fd = TO_SOCKET(i); if (!FD_ISSET(fd, &nwr)) PERL_FD_CLR(i,wr); } if (ex && PERL_FD_ISSET(i,ex)) { fd = TO_SOCKET(i); if (!FD_ISSET(fd, &nex)) PERL_FD_CLR(i,ex); } } errno = save_errno; #else SOCKET_TEST_ERROR(r = select(nfds, rd, wr, ex, timeout)); #endif return r; } int win32_send(SOCKET s, const char *buf, int len, int flags) { int r; SOCKET_TEST_ERROR(r = send(TO_SOCKET(s), buf, len, flags)); return r; } int win32_sendto(SOCKET s, const char *buf, int len, int flags, const struct sockaddr *to, int tolen) { int r; SOCKET_TEST_ERROR(r = sendto(TO_SOCKET(s), buf, len, flags, to, tolen)); return r; } int win32_setsockopt(SOCKET s, int level, int optname, const char *optval, int optlen) { int r; SOCKET_TEST_ERROR(r = setsockopt(TO_SOCKET(s), level, optname, optval, optlen)); return r; } int win32_shutdown(SOCKET s, int how) { int r; SOCKET_TEST_ERROR(r = shutdown(TO_SOCKET(s), how)); return r; } int win32_closesocket(SOCKET s) { int r; SOCKET_TEST_ERROR(r = closesocket(TO_SOCKET(s))); return r; } #ifdef USE_SOCKETS_AS_HANDLES #define WIN32_OPEN_SOCKET(af, type, protocol) open_ifs_socket(af, type, protocol) void convert_proto_info_w2a(WSAPROTOCOL_INFOW *in, WSAPROTOCOL_INFOA *out) { Copy(in, out, 1, WSAPROTOCOL_INFOA); wcstombs(out->szProtocol, in->szProtocol, sizeof(out->szProtocol)); } SOCKET open_ifs_socket(int af, int type, int protocol) { dTHX; char *s; unsigned long proto_buffers_len = 0; int error_code; SOCKET out = INVALID_SOCKET; if ((s = PerlEnv_getenv("PERL_ALLOW_NON_IFS_LSP")) && atoi(s)) return WSASocket(af, type, protocol, NULL, 0, 0); if (WSCEnumProtocols(NULL, NULL, &proto_buffers_len, &error_code) == SOCKET_ERROR && error_code == WSAENOBUFS) { WSAPROTOCOL_INFOW *proto_buffers; int protocols_available = 0; Newx(proto_buffers, proto_buffers_len / sizeof(WSAPROTOCOL_INFOW), WSAPROTOCOL_INFOW); if ((protocols_available = WSCEnumProtocols(NULL, proto_buffers, &proto_buffers_len, &error_code)) != SOCKET_ERROR) { int i; for (i = 0; i < protocols_available; i++) { WSAPROTOCOL_INFOA proto_info; if ((af != AF_UNSPEC && af != proto_buffers[i].iAddressFamily) || (type != proto_buffers[i].iSocketType) || (protocol != 0 && proto_buffers[i].iProtocol != 0 && protocol != proto_buffers[i].iProtocol)) continue; if ((proto_buffers[i].dwServiceFlags1 & XP1_IFS_HANDLES) == 0) continue; convert_proto_info_w2a(&(proto_buffers[i]), &proto_info); out = WSASocket(af, type, protocol, &proto_info, 0, 0); break; } } Safefree(proto_buffers); } return out; } #else #define WIN32_OPEN_SOCKET(af, type, protocol) socket(af, type, protocol) #endif SOCKET win32_socket(int af, int type, int protocol) { SOCKET s; #ifndef USE_SOCKETS_AS_HANDLES SOCKET_TEST(s = socket(af, type, protocol), INVALID_SOCKET); #else StartSockets(); if((s = WIN32_OPEN_SOCKET(af, type, protocol)) == INVALID_SOCKET) errno = WSAGetLastError(); else s = OPEN_SOCKET(s); #endif /* USE_SOCKETS_AS_HANDLES */ return s; } /* * close RTL fd while respecting sockets * added as temporary measure until PerlIO has real * Win32 native layer * -- BKS, 11-11-2000 */ int my_close(int fd) { int osf; if (!wsock_started) /* No WinSock? */ return(close(fd)); /* Then not a socket. */ osf = TO_SOCKET(fd);/* Get it now before it's gone! */ if (osf != -1) { int err; err = closesocket(osf); if (err == 0) { #if defined(USE_FIXED_OSFHANDLE) || defined(PERL_MSVCRT_READFIX) _set_osfhnd(fd, INVALID_HANDLE_VALUE); #endif (void)close(fd); /* handle already closed, ignore error */ return 0; } else if (err == SOCKET_ERROR) { err = WSAGetLastError(); if (err != WSAENOTSOCK) { (void)close(fd); errno = err; return EOF; } } } return close(fd); } #undef fclose int my_fclose (FILE *pf) { int osf; if (!wsock_started) /* No WinSock? */ return(fclose(pf)); /* Then not a socket. */ osf = TO_SOCKET(win32_fileno(pf));/* Get it now before it's gone! */ if (osf != -1) { int err; win32_fflush(pf); err = closesocket(osf); if (err == 0) { #if defined(USE_FIXED_OSFHANDLE) || defined(PERL_MSVCRT_READFIX) _set_osfhnd(win32_fileno(pf), INVALID_HANDLE_VALUE); #endif (void)fclose(pf); /* handle already closed, ignore error */ return 0; } else if (err == SOCKET_ERROR) { err = WSAGetLastError(); if (err != WSAENOTSOCK) { (void)fclose(pf); errno = err; return EOF; } } } return fclose(pf); } #undef fstat int my_fstat(int fd, Stat_t *sbufptr) { /* This fixes a bug in fstat() on Windows 9x. fstat() uses the * GetFileType() win32 syscall, which will fail on Windows 9x. * So if we recognize a socket on Windows 9x, we return the * same results as on Windows NT/2000. * XXX this should be extended further to set S_IFSOCK on * sbufptr->st_mode. */ int osf; if (!wsock_started || IsWinNT()) { #if defined(WIN64) || defined(USE_LARGE_FILES) #if defined(__BORLANDC__) /* buk */ return win32_fstat(fd, sbufptr ); #else return _fstati64(fd, sbufptr); #endif #else return fstat(fd, sbufptr); #endif } osf = TO_SOCKET(fd); if (osf != -1) { char sockbuf[256]; int optlen = sizeof(sockbuf); int retval; retval = getsockopt((SOCKET)osf, SOL_SOCKET, SO_TYPE, sockbuf, &optlen); if (retval != SOCKET_ERROR || WSAGetLastError() != WSAENOTSOCK) { #if defined(__BORLANDC__)&&(__BORLANDC__<=0x520) sbufptr->st_mode = S_IFIFO; #else sbufptr->st_mode = _S_IFIFO; #endif sbufptr->st_rdev = sbufptr->st_dev = (dev_t)fd; sbufptr->st_nlink = 1; sbufptr->st_uid = sbufptr->st_gid = sbufptr->st_ino = 0; sbufptr->st_atime = sbufptr->st_mtime = sbufptr->st_ctime = 0; sbufptr->st_size = (Off_t)0; return 0; } } #if defined(WIN64) || defined(USE_LARGE_FILES) #if defined(__BORLANDC__) /* buk */ return win32_fstat(fd, sbufptr ); #else return _fstati64(fd, sbufptr); #endif #else return fstat(fd, sbufptr); #endif } struct hostent * win32_gethostbyaddr(const char *addr, int len, int type) { struct hostent *r; SOCKET_TEST(r = gethostbyaddr(addr, len, type), NULL); return r; } struct hostent * win32_gethostbyname(const char *name) { struct hostent *r; SOCKET_TEST(r = gethostbyname(name), NULL); return r; } int win32_gethostname(char *name, int len) { int r; SOCKET_TEST_ERROR(r = gethostname(name, len)); return r; } struct protoent * win32_getprotobyname(const char *name) { struct protoent *r; SOCKET_TEST(r = getprotobyname(name), NULL); return r; } struct protoent * win32_getprotobynumber(int num) { struct protoent *r; SOCKET_TEST(r = getprotobynumber(num), NULL); return r; } struct servent * win32_getservbyname(const char *name, const char *proto) { dTHX; struct servent *r; SOCKET_TEST(r = getservbyname(name, proto), NULL); if (r) { r = win32_savecopyservent(&w32_servent, r, proto); } return r; } struct servent * win32_getservbyport(int port, const char *proto) { dTHX; struct servent *r; SOCKET_TEST(r = getservbyport(port, proto), NULL); if (r) { r = win32_savecopyservent(&w32_servent, r, proto); } return r; } int win32_ioctl(int i, unsigned int u, char *data) { dTHX; u_long u_long_arg; int retval; if (!wsock_started) { Perl_croak_nocontext("ioctl implemented only on sockets"); /* NOTREACHED */ } /* mauke says using memcpy avoids alignment issues */ memcpy(&u_long_arg, data, sizeof u_long_arg); retval = ioctlsocket(TO_SOCKET(i), (long)u, &u_long_arg); memcpy(data, &u_long_arg, sizeof u_long_arg); if (retval == SOCKET_ERROR) { if (WSAGetLastError() == WSAENOTSOCK) { Perl_croak_nocontext("ioctl implemented only on sockets"); /* NOTREACHED */ } errno = WSAGetLastError(); } return retval; } char FAR * win32_inet_ntoa(struct in_addr in) { StartSockets(); return inet_ntoa(in); } unsigned long win32_inet_addr(const char FAR *cp) { StartSockets(); return inet_addr(cp); } /* * Networking stubs */ void win32_endhostent() { dTHX; Perl_croak_nocontext("endhostent not implemented!\n"); } void win32_endnetent() { dTHX; Perl_croak_nocontext("endnetent not implemented!\n"); } void win32_endprotoent() { dTHX; Perl_croak_nocontext("endprotoent not implemented!\n"); } void win32_endservent() { dTHX; Perl_croak_nocontext("endservent not implemented!\n"); } struct netent * win32_getnetent(void) { dTHX; Perl_croak_nocontext("getnetent not implemented!\n"); return (struct netent *) NULL; } struct netent * win32_getnetbyname(char *name) { dTHX; Perl_croak_nocontext("getnetbyname not implemented!\n"); return (struct netent *)NULL; } struct netent * win32_getnetbyaddr(long net, int type) { dTHX; Perl_croak_nocontext("getnetbyaddr not implemented!\n"); return (struct netent *)NULL; } struct protoent * win32_getprotoent(void) { dTHX; Perl_croak_nocontext("getprotoent not implemented!\n"); return (struct protoent *) NULL; } struct servent * win32_getservent(void) { dTHX; Perl_croak_nocontext("getservent not implemented!\n"); return (struct servent *) NULL; } void win32_sethostent(int stayopen) { dTHX; Perl_croak_nocontext("sethostent not implemented!\n"); } void win32_setnetent(int stayopen) { dTHX; Perl_croak_nocontext("setnetent not implemented!\n"); } void win32_setprotoent(int stayopen) { dTHX; Perl_croak_nocontext("setprotoent not implemented!\n"); } void win32_setservent(int stayopen) { dTHX; Perl_croak_nocontext("setservent not implemented!\n"); } static struct servent* win32_savecopyservent(struct servent*d, struct servent*s, const char *proto) { d->s_name = s->s_name; d->s_aliases = s->s_aliases; d->s_port = s->s_port; #ifndef __BORLANDC__ /* Buggy on Win95 and WinNT-with-Borland-WSOCK */ if (!IsWin95() && s->s_proto && strlen(s->s_proto)) d->s_proto = s->s_proto; else #endif if (proto && strlen(proto)) d->s_proto = (char *)proto; else d->s_proto = "tcp"; return d; }