X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fbio%2Fb_sock.c;h=12b0a53a81c4fe066f6304b24fa32c94764f52d4;hb=e97359435ee15e6d2c0580c76a58040e8dc3ce60;hp=a7da2581014275ce32421a11dd3ce0ddb2ee3732;hpb=8d6e60486f3682e31830b11b7188038d6a85871f;p=oweals%2Fopenssl.git diff --git a/crypto/bio/b_sock.c b/crypto/bio/b_sock.c index a7da258101..12b0a53a81 100644 --- a/crypto/bio/b_sock.c +++ b/crypto/bio/b_sock.c @@ -56,20 +56,25 @@ * [including the GNU Public Licence.] */ -#ifndef OPENSSL_NO_SOCK - #include #include #include #define USE_SOCKETS #include "cryptlib.h" #include +#if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK) +#include +#if defined(NETWARE_CLIB) +#include +NETDB_DEFINE_CONTEXT +#endif +#endif + +#ifndef OPENSSL_NO_SOCK + +#include -#ifdef OPENSSL_SYS_WIN16 -#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */ -#else #define SOCKET_PROTOCOL IPPROTO_TCP -#endif #ifdef SO_MAXCONN #define MAX_LISTEN SO_MAXCONN @@ -79,10 +84,21 @@ #define MAX_LISTEN 32 #endif -#ifdef OPENSSL_SYS_WINDOWS +#if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)) static int wsa_init_done=0; #endif +/* + * WSAAPI specifier is required to make indirect calls to run-time + * linked WinSock 2 functions used in this module, to be specific + * [get|free]addrinfo and getnameinfo. This is because WinSock uses + * uses non-C calling convention, __stdcall vs. __cdecl, on x86 + * Windows. On non-WinSock platforms WSAAPI needs to be void. + */ +#ifndef WSAAPI +#define WSAAPI +#endif + #if 0 static unsigned long BIO_ghbn_hits=0L; static unsigned long BIO_ghbn_miss=0L; @@ -175,11 +191,11 @@ int BIO_get_port(const char *str, unsigned short *port_ptr) /* Note: under VMS with SOCKETSHR, it seems like the first * parameter is 'char *', instead of 'const char *' */ - s=getservbyname( #ifndef CONST_STRICT - (char *) + s=getservbyname((char *)str,"tcp"); +#else + s=getservbyname(str,"tcp"); #endif - str,"tcp"); if(s != NULL) *port_ptr=ntohs((unsigned short)s->s_port); CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME); @@ -219,6 +235,10 @@ int BIO_sock_error(int sock) int j,i; int size; +#if defined(OPENSSL_SYS_BEOS_R5) + return 0; +#endif + size=sizeof(int); /* Note: under Windows the third parameter is of type (char *) * whereas under other systems it is (void *) if you don't have @@ -357,7 +377,11 @@ struct hostent *BIO_gethostbyname(const char *name) #if 1 /* Caching gethostbyname() results forever is wrong, * so we have to let the true gethostbyname() worry about this */ +#if (defined(NETWARE_BSDSOCK) && !defined(__NOVELL_LIBC__)) + return gethostbyname((char*)name); +#else return gethostbyname(name); +#endif #else struct hostent *ret; int i,lowi=0,j; @@ -397,11 +421,11 @@ struct hostent *BIO_gethostbyname(const char *name) /* Note: under VMS with SOCKETSHR, it seems like the first * parameter is 'char *', instead of 'const char *' */ - ret=gethostbyname( # ifndef CONST_STRICT - (char *) + ret=gethostbyname((char *)name); +# else + ret=gethostbyname(name); # endif - name); if (ret == NULL) goto end; @@ -453,12 +477,14 @@ int BIO_sock_init(void) { int err; -#ifdef SIGINT - signal(SIGINT,(void (*)(int))BIO_sock_cleanup); -#endif wsa_init_done=1; memset(&wsa_state,0,sizeof(wsa_state)); - if (WSAStartup(0x0101,&wsa_state)!=0) + /* Not making wsa_state available to the rest of the + * code is formally wrong. But the structures we use + * are [beleived to be] invariable among Winsock DLLs, + * while API availability is [expected to be] probed + * at run-time with DSO_global_lookup. */ + if (WSAStartup(0x0202,&wsa_state)!=0) { err=WSAGetLastError(); SYSerr(SYS_F_WSASTARTUP,err); @@ -473,6 +499,26 @@ int BIO_sock_init(void) if (sock_init()) return (-1); #endif + +#if defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) + WORD wVerReq; + WSADATA wsaData; + int err; + + if (!wsa_init_done) + { + wsa_init_done=1; + wVerReq = MAKEWORD( 2, 0 ); + err = WSAStartup(wVerReq,&wsaData); + if (err != 0) + { + SYSerr(SYS_F_WSASTARTUP,err); + BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP); + return(-1); + } + } +#endif + return(1); } @@ -482,15 +528,23 @@ void BIO_sock_cleanup(void) if (wsa_init_done) { wsa_init_done=0; +#if 0 /* this call is claimed to be non-present in Winsock2 */ WSACancelBlockingCall(); +#endif WSACleanup(); } +#elif defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK) + if (wsa_init_done) + { + wsa_init_done=0; + WSACleanup(); + } #endif } #if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000 -int BIO_socket_ioctl(int fd, long type, unsigned long *arg) +int BIO_socket_ioctl(int fd, long type, void *arg) { int i; @@ -545,12 +599,18 @@ static int get_ip(const char *str, unsigned char ip[4]) int BIO_get_accept_socket(char *host, int bind_mode) { int ret=0; - struct sockaddr_in server,client; - int s=INVALID_SOCKET,cs; + union { + struct sockaddr sa; + struct sockaddr_in sa_in; +#if OPENSSL_USE_IPV6 + struct sockaddr_in6 sa_in6; +#endif + } server,client; + int s=INVALID_SOCKET,cs,addrlen; unsigned char ip[4]; unsigned short port; char *str=NULL,*e; - const char *h,*p; + char *h,*p; unsigned long l; int err_num; @@ -564,8 +624,7 @@ int BIO_get_accept_socket(char *host, int bind_mode) { if (*e == ':') { - p= &(e[1]); - *e='\0'; + p=e; } else if (*e == '/') { @@ -573,21 +632,70 @@ int BIO_get_accept_socket(char *host, int bind_mode) break; } } - - if (p == NULL) + if (p) *p++='\0'; /* points at last ':', '::port' is special [see below] */ + else p=h,h=NULL; + +#ifdef EAI_FAMILY + do { + static union { void *p; + int (WSAAPI *f)(const char *,const char *, + const struct addrinfo *, + struct addrinfo **); + } p_getaddrinfo = {NULL}; + static union { void *p; + void (WSAAPI *f)(struct addrinfo *); + } p_freeaddrinfo = {NULL}; + struct addrinfo *res,hint; + + if (p_getaddrinfo.p==NULL) { - p=h; - h="*"; + if ((p_getaddrinfo.p=DSO_global_lookup("getaddrinfo"))==NULL || + (p_freeaddrinfo.p=DSO_global_lookup("freeaddrinfo"))==NULL) + p_getaddrinfo.p=(void*)-1; } + if (p_getaddrinfo.p==(void *)-1) break; + + /* '::port' enforces IPv6 wildcard listener. Some OSes, + * e.g. Solaris, default to IPv6 without any hint. Also + * note that commonly IPv6 wildchard socket can service + * IPv4 connections just as well... */ + memset(&hint,0,sizeof(hint)); + if (h) + { + if (strchr(h,':')) + { + if (h[1]=='\0') h=NULL; +#if OPENSSL_USE_IPV6 + hint.ai_family = AF_INET6; +#else + h=NULL; +#endif + } + else if (h[0]=='*' && h[1]=='\0') + h=NULL; + } + + if ((*p_getaddrinfo.f)(h,p,&hint,&res)) break; + + addrlen = res->ai_addrlen<=sizeof(server) ? + res->ai_addrlen : + sizeof(server); + memcpy(&server, res->ai_addr, addrlen); + + (*p_freeaddrinfo.f)(res); + goto again; + } while (0); +#endif if (!BIO_get_port(p,&port)) goto err; memset((char *)&server,0,sizeof(server)); - server.sin_family=AF_INET; - server.sin_port=htons(port); + server.sa_in.sin_family=AF_INET; + server.sa_in.sin_port=htons(port); + addrlen = sizeof(server.sa_in); - if (strcmp(h,"*") == 0) - server.sin_addr.s_addr=INADDR_ANY; + if (h == NULL || strcmp(h,"*") == 0) + server.sa_in.sin_addr.s_addr=INADDR_ANY; else { if (!BIO_get_host_ip(h,&(ip[0]))) goto err; @@ -596,11 +704,11 @@ int BIO_get_accept_socket(char *host, int bind_mode) ((unsigned long)ip[1]<<16L)| ((unsigned long)ip[2]<< 8L)| ((unsigned long)ip[3]); - server.sin_addr.s_addr=htonl(l); + server.sa_in.sin_addr.s_addr=htonl(l); } again: - s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL); + s=socket(server.sa.sa_family,SOCK_STREAM,SOCKET_PROTOCOL); if (s == INVALID_SOCKET) { SYSerr(SYS_F_SOCKET,get_last_socket_error()); @@ -618,22 +726,42 @@ again: bind_mode=BIO_BIND_NORMAL; } #endif - if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1) + if (bind(s,&server.sa,addrlen) == -1) { #ifdef SO_REUSEADDR err_num=get_last_socket_error(); if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) && +#ifdef OPENSSL_SYS_WINDOWS + /* Some versions of Windows define EADDRINUSE to + * a dummy value. + */ + (err_num == WSAEADDRINUSE)) +#else (err_num == EADDRINUSE)) +#endif { - memcpy((char *)&client,(char *)&server,sizeof(server)); - if (strcmp(h,"*") == 0) - client.sin_addr.s_addr=htonl(0x7F000001); - cs=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL); + client = server; + if (h == NULL || strcmp(h,"*") == 0) + { +#if OPENSSL_USE_IPV6 + if (client.sa.sa_family == AF_INET6) + { + memset(&client.sa_in6.sin6_addr,0,sizeof(client.sa_in6.sin6_addr)); + client.sa_in6.sin6_addr.s6_addr[15]=1; + } + else +#endif + if (client.sa.sa_family == AF_INET) + { + client.sa_in.sin_addr.s_addr=htonl(0x7F000001); + } + else goto err; + } + cs=socket(client.sa.sa_family,SOCK_STREAM,SOCKET_PROTOCOL); if (cs != INVALID_SOCKET) { int ii; - ii=connect(cs,(struct sockaddr *)&client, - sizeof(client)); + ii=connect(cs,&client.sa,addrlen); closesocket(cs); if (ii == INVALID_SOCKET) { @@ -672,20 +800,52 @@ err: int BIO_accept(int sock, char **addr) { int ret=INVALID_SOCKET; - static struct sockaddr_in from; unsigned long l; unsigned short port; - int len; char *p; - memset((char *)&from,0,sizeof(from)); - len=sizeof(from); - /* Note: under VMS with SOCKETSHR the fourth parameter is currently - * of type (int *) whereas under other systems it is (void *) if - * you don't have a cast it will choke the compiler: if you do - * have a cast then you can either go for (int *) or (void *). + struct { + /* + * As for following union. Trouble is that there are platforms + * that have socklen_t and there are platforms that don't, on + * some platforms socklen_t is int and on some size_t. So what + * one can do? One can cook #ifdef spaghetti, which is nothing + * but masochistic. Or one can do union between int and size_t. + * One naturally does it primarily for 64-bit platforms where + * sizeof(int) != sizeof(size_t). But would it work? Note that + * if size_t member is initialized to 0, then later int member + * assignment naturally does the job on little-endian platforms + * regardless accept's expectations! What about big-endians? + * If accept expects int*, then it works, and if size_t*, then + * length value would appear as unreasonably large. But this + * won't prevent it from filling in the address structure. The + * trouble of course would be if accept returns more data than + * actual buffer can accomodate and overwrite stack... That's + * where early OPENSSL_assert comes into picture. Besides, the + * only 64-bit big-endian platform found so far that expects + * size_t* is HP-UX, where stack grows towards higher address. + * */ - ret=accept(sock,(struct sockaddr *)&from,(void *)&len); + union { size_t s; int i; } len; + union { + struct sockaddr sa; + struct sockaddr_in sa_in; +#if OPENSSL_USE_IPV6 + struct sockaddr_in6 sa_in6; +#endif + } from; + } sa; + + sa.len.s=0; + sa.len.i=sizeof(sa.from); + memset(&sa.from,0,sizeof(sa.from)); + ret=accept(sock,&sa.from.sa,(void *)&sa.len); + if (sizeof(sa.len.i)!=sizeof(sa.len.s) && sa.len.i==0) + { + OPENSSL_assert(sa.len.s<=sizeof(sa.from)); + sa.len.i = (int)sa.len.s; + /* use sa.len.i from this point */ + } if (ret == INVALID_SOCKET) { if(BIO_sock_should_retry(ret)) return -2; @@ -696,8 +856,46 @@ int BIO_accept(int sock, char **addr) if (addr == NULL) goto end; - l=ntohl(from.sin_addr.s_addr); - port=ntohs(from.sin_port); +#ifdef EAI_FAMILY + do { + char h[NI_MAXHOST],s[NI_MAXSERV]; + size_t nl; + static union { void *p; + int (WSAAPI *f)(const struct sockaddr *,size_t/*socklen_t*/, + char *,size_t,char *,size_t,int); + } p_getnameinfo = {NULL}; + /* 2nd argument to getnameinfo is specified to + * be socklen_t. Unfortunately there is a number + * of environments where socklen_t is not defined. + * As it's passed by value, it's safe to pass it + * as size_t... */ + + if (p_getnameinfo.p==NULL) + { + if ((p_getnameinfo.p=DSO_global_lookup("getnameinfo"))==NULL) + p_getnameinfo.p=(void*)-1; + } + if (p_getnameinfo.p==(void *)-1) break; + + if ((*p_getnameinfo.f)(&sa.from.sa,sa.len.i,h,sizeof(h),s,sizeof(s), + NI_NUMERICHOST|NI_NUMERICSERV)) break; + nl = strlen(h)+strlen(s)+2; + p = *addr; + if (p) { *p = '\0'; p = OPENSSL_realloc(p,nl); } + else { p = OPENSSL_malloc(nl); } + if (p==NULL) + { + BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE); + goto end; + } + *addr = p; + BIO_snprintf(*addr,nl,"%s:%s",h,s); + goto end; + } while(0); +#endif + if (sa.from.sa.sa_family != AF_INET) goto end; + l=ntohl(sa.from.sa_in.sin_addr.s_addr); + port=ntohs(sa.from.sa_in.sin_port); if (*addr == NULL) { if ((p=OPENSSL_malloc(24)) == NULL) @@ -707,12 +905,12 @@ int BIO_accept(int sock, char **addr) } *addr=p; } - sprintf(*addr,"%d.%d.%d.%d:%d", - (unsigned char)(l>>24L)&0xff, - (unsigned char)(l>>16L)&0xff, - (unsigned char)(l>> 8L)&0xff, - (unsigned char)(l )&0xff, - port); + BIO_snprintf(*addr,24,"%d.%d.%d.%d:%d", + (unsigned char)(l>>24L)&0xff, + (unsigned char)(l>>16L)&0xff, + (unsigned char)(l>> 8L)&0xff, + (unsigned char)(l )&0xff, + port); end: return(ret); } @@ -740,7 +938,7 @@ int BIO_set_tcp_ndelay(int s, int on) int BIO_socket_nbio(int s, int mode) { int ret= -1; - unsigned long l; + int l; l=mode; #ifdef FIONBIO