diff options
Diffstat (limited to 'openssl/crypto/bio/b_sock.c')
| -rw-r--r-- | openssl/crypto/bio/b_sock.c | 975 |
1 files changed, 0 insertions, 975 deletions
diff --git a/openssl/crypto/bio/b_sock.c b/openssl/crypto/bio/b_sock.c deleted file mode 100644 index d47310d6..00000000 --- a/openssl/crypto/bio/b_sock.c +++ /dev/null @@ -1,975 +0,0 @@ -/* crypto/bio/b_sock.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ - -#include <stdio.h> -#include <stdlib.h> -#include <errno.h> -#define USE_SOCKETS -#include "cryptlib.h" -#include <openssl/bio.h> -#if defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_BSDSOCK) -#include <netdb.h> -#if defined(NETWARE_CLIB) -#include <sys/ioctl.h> -NETDB_DEFINE_CONTEXT -#endif -#endif - -#ifndef OPENSSL_NO_SOCK - -#include <openssl/dso.h> - -#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 - -#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; - -#define GHBN_NUM 4 -static struct ghbn_cache_st - { - char name[129]; - struct hostent *ent; - unsigned long order; - } ghbn_cache[GHBN_NUM]; -#endif - -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) - { - BIOerr(BIO_F_BIO_GET_HOST_IP,BIO_R_INVALID_IP_ADDRESS); - goto err; - } - - /* 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 */ - - /* 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; - } - - /* 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(const char *str, unsigned short *port_ptr) - { - int i; - struct servent *s; - - if (str == NULL) - { - BIOerr(BIO_F_BIO_GET_PORT,BIO_R_NO_PORT_DEFINED); - return(0); - } - i=atoi(str); - if (i != 0) - *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"); -#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; - else if (strcmp(str,"telnet") == 0) - *port_ptr=23; - else if (strcmp(str,"socks") == 0) - *port_ptr=1080; - else if (strcmp(str,"https") == 0) - *port_ptr=443; - else if (strcmp(str,"ssl") == 0) - *port_ptr=443; - else if (strcmp(str,"ftp") == 0) - *port_ptr=21; - else if (strcmp(str,"gopher") == 0) - *port_ptr=70; -#if 0 - else if (strcmp(str,"wais") == 0) - *port_ptr=21; -#endif - else - { - SYSerr(SYS_F_GETSERVBYNAME,get_last_socket_error()); - ERR_add_error_data(3,"service='",str,"'"); - return(0); - } - } - } - return(1); - } - -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 - * 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); - } - -#if 0 -long BIO_ghbn_ctrl(int cmd, int iarg, char *parg) - { - 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 <GHBN_NUM) && - (ghbn_cache[iarg].order > 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; i<GHBN_NUM; i++) - ghbn_cache[i].order=0; - break; - default: - return(0); - } - return(1); - } -#endif - -#if 0 -static struct hostent *ghbn_dup(struct hostent *a) - { - struct hostent *ret; - int i,j; - - MemCheck_off(); - ret=(struct hostent *)OPENSSL_malloc(sizeof(struct hostent)); - if (ret == NULL) return(NULL); - memset(ret,0,sizeof(struct hostent)); - - for (i=0; a->h_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; - - -# 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<GHBN_NUM; i++) - { - if (low > ghbn_cache[i].order) - { - low=ghbn_cache[i].order; - lowi=i; - } - if (ghbn_cache[i].order > 0) - { - if (strncmp(name,ghbn_cache[i].name,128) == 0) - break; - } - } - } - else - i=GHBN_NUM; - - if (i == GHBN_NUM) /* no hit*/ - { - BIO_ghbn_miss++; - /* Note: under VMS with SOCKETSHR, it seems like the first - * parameter is 'char *', instead of 'const char *' - */ -# ifndef CONST_STRICT - ret=gethostbyname((char *)name); -# else - ret=gethostbyname(name); -# endif - - if (ret == NULL) - goto end; - if (j > 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); - ghbn_cache[lowi].order=BIO_ghbn_miss+BIO_ghbn_hits; - } - else - { - BIO_ghbn_hits++; - ret= ghbn_cache[i].ent; - ghbn_cache[i].order=BIO_ghbn_miss+BIO_ghbn_hits; - } -end: -# if 0 - CRYPTO_w_unlock(CRYPTO_LOCK_GETHOSTBYNAME); -# endif - return(ret); -#endif - } - - -int BIO_sock_init(void) - { -#ifdef OPENSSL_SYS_WINDOWS - static struct WSAData wsa_state; - - if (!wsa_init_done) - { - int err; - - wsa_init_done=1; - memset(&wsa_state,0,sizeof(wsa_state)); - /* 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); - BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP); - return(-1); - } - } -#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) - { -#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 - } - -#if !defined(OPENSSL_SYS_VMS) || __VMS_VER >= 70000000 - -int BIO_socket_ioctl(int fd, long type, void *arg) - { - int i; - -#ifdef __DJGPP__ - i=ioctlsocket(fd,type,(char *)arg); -#else -# if defined(OPENSSL_SYS_VMS) - /* 2011-02-18 SMS. - * VMS ioctl() can't tolerate a 64-bit "void *arg", but we - * observe that all the consumers pass in an "unsigned long *", - * so we arrange a local copy with a short pointer, and use - * that, instead. - */ -# if __INITIAL_POINTER_SIZE == 64 -# define ARG arg_32p -# pragma pointer_size save -# pragma pointer_size 32 - unsigned long arg_32; - unsigned long *arg_32p; -# pragma pointer_size restore - arg_32p = &arg_32; - arg_32 = *((unsigned long *) arg); -# else /* __INITIAL_POINTER_SIZE == 64 */ -# define ARG arg -# endif /* __INITIAL_POINTER_SIZE == 64 [else] */ -# else /* defined(OPENSSL_SYS_VMS) */ -# define ARG arg -# endif /* defined(OPENSSL_SYS_VMS) [else] */ - - i=ioctlsocket(fd,type,ARG); -#endif /* __DJGPP__ */ - if (i < 0) - 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(const char *str, unsigned char ip[4]) - { - unsigned int tmp[4]; - int num=0,c,ok=0; - - tmp[0]=tmp[1]=tmp[2]=tmp[3]=0; - - for (;;) - { - c= *(str++); - if ((c >= '0') && (c <= '9')) - { - ok=1; - tmp[num]=tmp[num]*10+c-'0'; - if (tmp[num] > 255) return(0); - } - else if (c == '.') - { - if (!ok) return(-1); - if (num == 3) return(0); - num++; - ok=0; - } - else if (c == '\0' && (num == 3) && ok) - break; - else - return(0); - } - ip[0]=tmp[0]; - ip[1]=tmp[1]; - ip[2]=tmp[2]; - ip[3]=tmp[3]; - return(1); - } - -int BIO_get_accept_socket(char *host, int bind_mode) - { - int ret=0; - 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; - char *h,*p; - unsigned long l; - int err_num; - - if (BIO_sock_init() != 1) return(INVALID_SOCKET); - - if ((str=BUF_strdup(host)) == NULL) return(INVALID_SOCKET); - - h=p=NULL; - h=str; - for (e=str; *e; e++) - { - if (*e == ':') - { - p=e; - } - else if (*e == '/') - { - *e='\0'; - break; - } - } - 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) - { - 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)); - hint.ai_flags = AI_PASSIVE; - 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') - { - hint.ai_family = AF_INET; - 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.sa_in.sin_family=AF_INET; - server.sa_in.sin_port=htons(port); - addrlen = sizeof(server.sa_in); - - 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; - l=(unsigned long) - ((unsigned long)ip[0]<<24L)| - ((unsigned long)ip[1]<<16L)| - ((unsigned long)ip[2]<< 8L)| - ((unsigned long)ip[3]); - server.sa_in.sin_addr.s_addr=htonl(l); - } - -again: - s=socket(server.sa.sa_family,SOCK_STREAM,SOCKET_PROTOCOL); - if (s == INVALID_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; - } - -#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 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 - { - 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,MAX_LISTEN) == -1) - { - 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) OPENSSL_free(str); - if ((ret == 0) && (s != INVALID_SOCKET)) - { - closesocket(s); - s= INVALID_SOCKET; - } - return(s); - } - -int BIO_accept(int sock, char **addr) - { - int ret=INVALID_SOCKET; - unsigned long l; - unsigned short port; - char *p; - - 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. - * <appro> - */ - 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; - SYSerr(SYS_F_ACCEPT,get_last_socket_error()); - BIOerr(BIO_F_BIO_ACCEPT,BIO_R_ACCEPT_ERROR); - goto end; - } - - if (addr == NULL) goto end; - -#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... <appro> */ - - 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) - { - BIOerr(BIO_F_BIO_ACCEPT,ERR_R_MALLOC_FAILURE); - goto end; - } - *addr=p; - } - 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(int s, int on) - { - int ret=0; -#if defined(TCP_NODELAY) && (defined(IPPROTO_TCP) || defined(SOL_TCP)) - int opt; - -#ifdef SOL_TCP - opt=SOL_TCP; -#else -#ifdef IPPROTO_TCP - opt=IPPROTO_TCP; -#endif -#endif - - ret=setsockopt(s,opt,TCP_NODELAY,(char *)&on,sizeof(on)); -#endif - return(ret == 0); - } -#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); - } |