X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fbio%2Fb_sock.c;h=12b0a53a81c4fe066f6304b24fa32c94764f52d4;hb=e97359435ee15e6d2c0580c76a58040e8dc3ce60;hp=adab62135e7ddbf6da275a3bf77b26e50b577eb0;hpb=eda1f21f1af8b6f77327e7b37573af9c1ba73726;p=oweals%2Fopenssl.git diff --git a/crypto/bio/b_sock.c b/crypto/bio/b_sock.c index adab62135e..12b0a53a81 100644 --- a/crypto/bio/b_sock.c +++ b/crypto/bio/b_sock.c @@ -1,5 +1,5 @@ /* crypto/bio/b_sock.c */ -/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written @@ -56,75 +56,123 @@ * [including the GNU Public Licence.] */ -#ifndef NO_SOCK - #include +#include #include #define USE_SOCKETS #include "cryptlib.h" -#include "bio.h" +#include +#if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK) +#include +#if defined(NETWARE_CLIB) +#include +NETDB_DEFINE_CONTEXT +#endif +#endif -/* BIOerr(BIO_F_WSASTARTUP,BIO_R_WSASTARTUP ); */ +#ifndef OPENSSL_NO_SOCK + +#include -#ifdef WIN16 -#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */ -#else #define SOCKET_PROTOCOL IPPROTO_TCP + +#ifdef SO_MAXCONN +#define MAX_LISTEN SO_MAXCONN +#elif defined(SOMAXCONN) +#define MAX_LISTEN SOMAXCONN +#else +#define MAX_LISTEN 32 #endif -#ifdef WINDOWS +#if defined(OPENSSL_SYS_WINDOWS) || (defined(OPENSSL_SYS_NETWARE) && !defined(NETWARE_BSDSOCK)) static int wsa_init_done=0; #endif -unsigned long BIO_ghbn_hits=0L; -unsigned long BIO_ghbn_miss=0L; +/* + * 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 -#ifndef NOPROTO -static int get_ip(char *str,unsigned char *ip); -#else -static int get_ip(); +#if 0 +static unsigned long BIO_ghbn_hits=0L; +static unsigned long BIO_ghbn_miss=0L; + +#define GHBN_NUM 4 +static struct ghbn_cache_st + { + char name[129]; + struct hostent *ent; + unsigned long order; + } ghbn_cache[GHBN_NUM]; #endif -int BIO_get_host_ip(str,ip) -char *str; -unsigned char *ip; +static int get_ip(const char *str,unsigned char *ip); +#if 0 +static void ghbn_free(struct hostent *a); +static struct hostent *ghbn_dup(struct hostent *a); +#endif +int BIO_get_host_ip(const char *str, unsigned char *ip) { int i; + int err = 1; + int locked = 0; struct hostent *he; i=get_ip(str,ip); - if (i > 0) return(1); if (i < 0) { BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_INVALID_IP_ADDRESS); - return(0); + goto err; } - else - { /* do a gethostbyname */ - if (!BIO_sock_init()) return(0); - he=BIO_gethostbyname(str); - if (he == NULL) - { - BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_BAD_HOSTNAME_LOOKUP); - return(0); - } + /* At this point, we have something that is most probably correct + in some way, so let's init the socket. */ + if (BIO_sock_init() != 1) + return 0; /* don't generate another error code here */ - /* cast to short because of win16 winsock definition */ - if ((short)he->h_addrtype != AF_INET) - { - BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET); - return(0); - } - for (i=0; i<4; i++) - ip[i]=he->h_addr_list[0][i]; + /* If the string actually contained an IP address, we need not do + anything more */ + if (i > 0) return(1); + + /* do a gethostbyname */ + CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); + locked = 1; + he=BIO_gethostbyname(str); + if (he == NULL) + { + BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_BAD_HOSTNAME_LOOKUP); + goto err; } - return(1); + + /* cast to short because of win16 winsock definition */ + if ((short)he->h_addrtype != AF_INET) + { + BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_GETHOSTBYNAME_ADDR_IS_NOT_AF_INET); + goto err; + } + for (i=0; i<4; i++) + ip[i]=he->h_addr_list[0][i]; + err = 0; + + err: + if (locked) + CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); + if (err) + { + ERR_add_error_data(2,"host=",str); + return 0; + } + else + return 1; } -int BIO_get_port(str,port_ptr) -char *str; -short *port_ptr; +int BIO_get_port(const char *str, unsigned short *port_ptr) { int i; struct servent *s; @@ -139,8 +187,19 @@ short *port_ptr; *port_ptr=(unsigned short)i; else { + CRYPTO_w_lock(CRYPTO_LOCK_GETSERVBYNAME); + /* Note: under VMS with SOCKETSHR, it seems like the first + * parameter is 'char *', instead of 'const char *' + */ +#ifndef CONST_STRICT + s=getservbyname((char *)str,"tcp"); +#else s=getservbyname(str,"tcp"); - if (s == NULL) +#endif + if(s != NULL) + *port_ptr=ntohs((unsigned short)s->s_port); + CRYPTO_w_unlock(CRYPTO_LOCK_GETSERVBYNAME); + if(s == NULL) { if (strcmp(str,"http") == 0) *port_ptr=80; @@ -162,47 +221,182 @@ short *port_ptr; #endif else { - SYSerr(SYS_F_GETSERVBYNAME,errno); + SYSerr(SYS_F_GETSERVBYNAME,get_last_socket_error()); + ERR_add_error_data(3,"service='",str,"'"); return(0); } - return(1); } - *port_ptr=htons((unsigned short)s->s_port); } return(1); } -int BIO_sock_error(sock) -int sock; +int BIO_sock_error(int sock) { - int j,i,size; + int j,i; + int size; + +#if defined(OPENSSL_SYS_BEOS_R5) + return 0; +#endif size=sizeof(int); - - i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(char *)&j,&size); + /* Note: under Windows the third parameter is of type (char *) + * 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 (char *) or (void *). + */ + i=getsockopt(sock,SOL_SOCKET,SO_ERROR,(void *)&j,(void *)&size); if (i < 0) return(1); else return(j); } -#define GHBN_NUM 4 -static struct ghbn_cache_st +#if 0 +long BIO_ghbn_ctrl(int cmd, int iarg, char *parg) { - char name[128]; - struct hostent ent; - unsigned long order; - } ghbn_cache[GHBN_NUM]; + int i; + char **p; + + switch (cmd) + { + case BIO_GHBN_CTRL_HITS: + return(BIO_ghbn_hits); + /* break; */ + case BIO_GHBN_CTRL_MISSES: + return(BIO_ghbn_miss); + /* break; */ + case BIO_GHBN_CTRL_CACHE_SIZE: + return(GHBN_NUM); + /* break; */ + case BIO_GHBN_CTRL_GET_ENTRY: + if ((iarg >= 0) && (iarg 0)) + { + p=(char **)parg; + if (p == NULL) return(0); + *p=ghbn_cache[iarg].name; + ghbn_cache[iarg].name[128]='\0'; + return(1); + } + return(0); + /* break; */ + case BIO_GHBN_CTRL_FLUSH: + for (i=0; ih_aliases[i] != NULL; i++) + ; + i++; + ret->h_aliases = (char **)OPENSSL_malloc(i*sizeof(char *)); + if (ret->h_aliases == NULL) + goto err; + memset(ret->h_aliases, 0, i*sizeof(char *)); + + for (i=0; a->h_addr_list[i] != NULL; i++) + ; + i++; + ret->h_addr_list=(char **)OPENSSL_malloc(i*sizeof(char *)); + if (ret->h_addr_list == NULL) + goto err; + memset(ret->h_addr_list, 0, i*sizeof(char *)); + + j=strlen(a->h_name)+1; + if ((ret->h_name=OPENSSL_malloc(j)) == NULL) goto err; + memcpy((char *)ret->h_name,a->h_name,j); + for (i=0; a->h_aliases[i] != NULL; i++) + { + j=strlen(a->h_aliases[i])+1; + if ((ret->h_aliases[i]=OPENSSL_malloc(j)) == NULL) goto err; + memcpy(ret->h_aliases[i],a->h_aliases[i],j); + } + ret->h_length=a->h_length; + ret->h_addrtype=a->h_addrtype; + for (i=0; a->h_addr_list[i] != NULL; i++) + { + if ((ret->h_addr_list[i]=OPENSSL_malloc(a->h_length)) == NULL) + goto err; + memcpy(ret->h_addr_list[i],a->h_addr_list[i],a->h_length); + } + if (0) + { +err: + if (ret != NULL) + ghbn_free(ret); + ret=NULL; + } + MemCheck_on(); + return(ret); + } + +static void ghbn_free(struct hostent *a) + { + int i; + + if(a == NULL) + return; + + if (a->h_aliases != NULL) + { + for (i=0; a->h_aliases[i] != NULL; i++) + OPENSSL_free(a->h_aliases[i]); + OPENSSL_free(a->h_aliases); + } + if (a->h_addr_list != NULL) + { + for (i=0; a->h_addr_list[i] != NULL; i++) + OPENSSL_free(a->h_addr_list[i]); + OPENSSL_free(a->h_addr_list); + } + if (a->h_name != NULL) OPENSSL_free(a->h_name); + OPENSSL_free(a); + } + +#endif + +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; unsigned long low= (unsigned long)-1; - CRYPTO_w_lock(CRYPTO_LOCK_BIO_GETHOSTBYNAME); - if (strlen(name) < 128) + +# if 0 + /* It doesn't make sense to use locking here: The function interface + * is not thread-safe, because threads can never be sure when + * some other thread destroys the data they were given a pointer to. + */ + CRYPTO_w_lock(CRYPTO_LOCK_GETHOSTBYNAME); +# endif + j=strlen(name); + if (j < 128) { for (i=0; i 128) /* too big to cache */ + { +# if 0 + /* If we were trying to make this function thread-safe (which + * is bound to fail), we'd have to give up in this case + * (or allocate more memory). */ + ret = NULL; +# endif + goto end; + } + /* else add to cache */ + if (ghbn_cache[lowi].ent != NULL) + ghbn_free(ghbn_cache[lowi].ent); /* XXX not thread-safe */ + ghbn_cache[lowi].name[0] = '\0'; + + if((ret=ghbn_cache[lowi].ent=ghbn_dup(ret)) == NULL) + { + BIOerr(BIO_F_BIO_GETHOSTBYNAME,ERR_R_MALLOC_FAILURE); + goto end; + } strncpy(ghbn_cache[lowi].name,name,128); - memcpy((char *)&(ghbn_cache[lowi].ent),ret,sizeof(struct hostent)); ghbn_cache[lowi].order=BIO_ghbn_miss+BIO_ghbn_hits; } else { BIO_ghbn_hits++; - ret= &(ghbn_cache[i].ent); + ret= ghbn_cache[i].ent; ghbn_cache[i].order=BIO_ghbn_miss+BIO_ghbn_hits; } - CRYPTO_w_unlock(CRYPTO_LOCK_BIO_GETHOSTBYNAME); +end: +# if 0 + CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); +# endif return(ret); +#endif } -int BIO_sock_init() + +int BIO_sock_init(void) { -#ifdef WINDOWS +#ifdef OPENSSL_SYS_WINDOWS static struct WSAData wsa_state; if (!wsa_init_done) { 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); @@ -263,51 +492,76 @@ int BIO_sock_init() return(-1); } } -#endif /* WINDOWS */ +#endif /* OPENSSL_SYS_WINDOWS */ +#ifdef WATT32 + extern int _watt_do_exit; + _watt_do_exit = 0; /* don't make sock_init() call exit() */ + 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); } -void BIO_sock_cleanup() +void BIO_sock_cleanup(void) { -#ifdef WINDOWS +#ifdef OPENSSL_SYS_WINDOWS 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 } -int BIO_socket_ioctl(fd,type,arg) -int fd; -long type; -unsigned long *arg; +#if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000 + +int BIO_socket_ioctl(int fd, long type, void *arg) { - int i,err; + int i; -#ifdef WINDOWS - i=ioctlsocket(fd,type,arg); +#ifdef __DJGPP__ + i=ioctlsocket(fd,type,(char *)arg); #else - i=ioctl(fd,type,arg); -#endif + i=ioctlsocket(fd,type,arg); +#endif /* __DJGPP__ */ if (i < 0) - { -#ifdef WINDOWS - err=WSAGetLastError(); -#else - err=errno; -#endif - SYSerr(SYS_F_IOCTLSOCKET,err); - } + SYSerr(SYS_F_IOCTLSOCKET,get_last_socket_error()); return(i); } +#endif /* __VMS_VER */ /* The reason I have implemented this instead of using sscanf is because * Visual C 1.52c gives an unresolved external when linking a DLL :-( */ -static int get_ip(str,ip) -char *str; -unsigned char ip[4]; +static int get_ip(const char *str, unsigned char ip[4]) { unsigned int tmp[4]; int num=0,c,ok=0; @@ -321,16 +575,16 @@ unsigned char ip[4]; { ok=1; tmp[num]=tmp[num]*10+c-'0'; - if (tmp[num] > 255) return(-1); + if (tmp[num] > 255) return(0); } else if (c == '.') { if (!ok) return(-1); - if (num == 3) break; + if (num == 3) return(0); num++; ok=0; } - else if ((num == 3) && ok) + else if (c == '\0' && (num == 3) && ok) break; else return(0); @@ -342,18 +596,25 @@ unsigned char ip[4]; return(1); } -int BIO_get_accept_socket(host) -char *host; +int BIO_get_accept_socket(char *host, int bind_mode) { int ret=0; - struct sockaddr_in server; - int s= -1; + 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]; - short port; - char *str,*h,*p,*e; + unsigned short port; + char *str=NULL,*e; + char *h,*p; unsigned long l; + int err_num; - if (!BIO_sock_init()) return(INVALID_SOCKET); + if (BIO_sock_init() != 1) return(INVALID_SOCKET); if ((str=BUF_strdup(host)) == NULL) return(INVALID_SOCKET); @@ -363,8 +624,7 @@ char *host; { if (*e == ':') { - p= &(e[1]); - *e='\0'; + p=e; } else if (*e == '/') { @@ -372,125 +632,290 @@ char *host; 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; - if (!BIO_get_port(p,&port)) return(INVALID_SOCKET); + 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((unsigned short)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]))) return(INVALID_SOCKET); + if (!BIO_get_host_ip(h,&(ip[0]))) goto err; l=(unsigned long) ((unsigned long)ip[0]<<24L)| - ((unsigned long)ip[0]<<16L)| - ((unsigned long)ip[0]<< 8L)| - ((unsigned long)ip[0]); - server.sin_addr.s_addr=htonl(l); + ((unsigned long)ip[1]<<16L)| + ((unsigned long)ip[2]<< 8L)| + ((unsigned long)ip[3]); + server.sa_in.sin_addr.s_addr=htonl(l); } - s=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL); +again: + s=socket(server.sa.sa_family,SOCK_STREAM,SOCKET_PROTOCOL); if (s == INVALID_SOCKET) { -#ifdef WINDOWS - errno=WSAGetLastError(); -#endif - SYSerr(SYS_F_SOCKET,errno); - BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET); + SYSerr(SYS_F_SOCKET,get_last_socket_error()); + ERR_add_error_data(3,"port='",host,"'"); + BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_CREATE_SOCKET); goto err; } - if (bind(s,(struct sockaddr *)&server,sizeof(server)) == -1) + +#ifdef SO_REUSEADDR + if (bind_mode == BIO_BIND_REUSEADDR) + { + int i=1; + + ret=setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&i,sizeof(i)); + bind_mode=BIO_BIND_NORMAL; + } +#endif + if (bind(s,&server.sa,addrlen) == -1) { -#ifdef WINDOWS - errno=WSAGetLastError(); +#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 - SYSerr(SYS_F_BIND,errno); + { + 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,&client.sa,addrlen); + closesocket(cs); + if (ii == INVALID_SOCKET) + { + bind_mode=BIO_BIND_REUSEADDR; + closesocket(s); + goto again; + } + /* else error */ + } + /* else error */ + } +#endif + SYSerr(SYS_F_BIND,err_num); + ERR_add_error_data(3,"port='",host,"'"); BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_BIND_SOCKET); goto err; } - if (listen(s,5) == -1) + if (listen(s,MAX_LISTEN) == -1) { -#ifdef WINDOWS - errno=WSAGetLastError(); -#endif - SYSerr(SYS_F_LISTEN,errno); + SYSerr(SYS_F_BIND,get_last_socket_error()); + ERR_add_error_data(3,"port='",host,"'"); BIOerr(BIO_F_BIO_GET_ACCEPT_SOCKET,BIO_R_UNABLE_TO_LISTEN_SOCKET); goto err; } ret=1; err: - if (str != NULL) Free(str); + if (str != NULL) OPENSSL_free(str); if ((ret == 0) && (s != INVALID_SOCKET)) { -#ifdef WINDOWS closesocket(s); -#else - close(s); -#endif s= INVALID_SOCKET; } return(s); } -int BIO_accept(sock,addr) -int sock; -char **addr; +int BIO_accept(int sock, char **addr) { int ret=INVALID_SOCKET; - static struct sockaddr_in from; unsigned long l; - short port; - int len; + unsigned short port; char *p; - memset((char *)&from,0,sizeof(from)); - len=sizeof(from); - ret=accept(sock,(struct sockaddr *)&from,&len); + 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. + * + */ + 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) { -#ifdef WINDOWS - errno=WSAGetLastError(); -#endif - SYSerr(SYS_F_ACCEPT,errno); + if(BIO_sock_should_retry(ret)) return -2; + SYSerr(SYS_F_ACCEPT,get_last_socket_error()); BIOerr(BIO_F_BIO_ACCEPT,BIO_R_ACCEPT_ERROR); goto end; } 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=Malloc(24)) == NULL) + if ((p=OPENSSL_malloc(24)) == NULL) { BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE); goto end; } *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); } -int BIO_set_tcp_ndelay(s,on) -int s; -int on; +int BIO_set_tcp_ndelay(int s, int on) { int ret=0; #if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP)) @@ -510,3 +935,14 @@ int on; } #endif +int BIO_socket_nbio(int s, int mode) + { + int ret= -1; + int l; + + l=mode; +#ifdef FIONBIO + ret=BIO_socket_ioctl(s,FIONBIO,&l); +#endif + return(ret == 0); + }