diff options
Diffstat (limited to 'crypto/bio/b_sock.c')
-rw-r--r-- | crypto/bio/b_sock.c | 723 |
1 files changed, 0 insertions, 723 deletions
diff --git a/crypto/bio/b_sock.c b/crypto/bio/b_sock.c deleted file mode 100644 index da2ff29..0000000 --- a/crypto/bio/b_sock.c +++ /dev/null @@ -1,723 +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.] - */ - -#ifndef NO_SOCK - -#include <stdio.h> -#include <stdlib.h> -#include <errno.h> -#define USE_SOCKETS -#include "cryptlib.h" -#include <openssl/bio.h> - -#ifdef WIN16 -#define SOCKET_PROTOCOL 0 /* more microsoft stupidity */ -#else -#define SOCKET_PROTOCOL IPPROTO_TCP -#endif - -#ifdef SO_MAXCONN -#define MAX_LISTEN SOMAXCONN -#elif defined(SO_MAXCONN) -#define MAX_LISTEN SO_MAXCONN -#else -#define MAX_LISTEN 32 -#endif - -#ifdef WINDOWS -static int wsa_init_done=0; -#endif - -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]; - -static int get_ip(const char *str,unsigned char *ip); -static void ghbn_free(struct hostent *a); -static struct hostent *ghbn_dup(struct hostent *a); -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 *' - */ - s=getservbyname( -#ifndef CONST_STRICT - (char *) -#endif - str,"tcp"); - 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; - - 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); - } - -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); - } - -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); - } - -struct hostent *BIO_gethostbyname(const char *name) - { - struct hostent *ret; - int i,lowi=0,j; - unsigned long low= (unsigned long)-1; - -/* return(gethostbyname(name)); */ - -#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 *' - */ - ret=gethostbyname( -#ifndef CONST_STRICT - (char *) -#endif - name); - - 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); - } - -int BIO_sock_init(void) - { -#ifdef 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) - { - err=WSAGetLastError(); - SYSerr(SYS_F_WSASTARTUP,err); - BIOerr(BIO_F_BIO_SOCK_INIT,BIO_R_WSASTARTUP); - return(-1); - } - } -#endif /* WINDOWS */ - return(1); - } - -void BIO_sock_cleanup(void) - { -#ifdef WINDOWS - if (wsa_init_done) - { - wsa_init_done=0; - WSACancelBlockingCall(); - WSACleanup(); - } -#endif - } - -#if !defined(VMS) || __VMS_VER >= 70000000 - -int BIO_socket_ioctl(int fd, long type, unsigned long *arg) - { - int i; - - i=ioctlsocket(fd,type,arg); - 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(-1); - } - else if (c == '.') - { - if (!ok) return(-1); - if (num == 3) break; - num++; - ok=0; - } - else if ((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; - struct sockaddr_in server,client; - int s= -1,cs; - unsigned char ip[4]; - unsigned short port; - char *str,*e; - const 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[1]); - *e='\0'; - } - else if (*e == '/') - { - *e='\0'; - break; - } - } - - if (p == NULL) - { - p=h; - h="*"; - } - - if (!BIO_get_port(p,&port)) return(INVALID_SOCKET); - - memset((char *)&server,0,sizeof(server)); - server.sin_family=AF_INET; - server.sin_port=htons(port); - - if (strcmp(h,"*") == 0) - server.sin_addr.s_addr=INADDR_ANY; - else - { - if (!BIO_get_host_ip(h,&(ip[0]))) return(INVALID_SOCKET); - l=(unsigned long) - ((unsigned long)ip[0]<<24L)| - ((unsigned long)ip[1]<<16L)| - ((unsigned long)ip[2]<< 8L)| - ((unsigned long)ip[3]); - server.sin_addr.s_addr=htonl(l); - } - -again: - s=socket(AF_INET,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,(struct sockaddr *)&server,sizeof(server)) == -1) - { -#ifdef SO_REUSEADDR - err_num=get_last_socket_error(); - if ((bind_mode == BIO_BIND_REUSEADDR_IF_UNUSED) && - (err_num == EADDRINUSE)) - { - 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); - if (cs != INVALID_SOCKET) - { - int ii; - ii=connect(cs,(struct sockaddr *)&client, - sizeof(client)); - 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; - 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 *). - */ - ret=accept(sock,(struct sockaddr *)&from,(void *)&len); - 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; - - l=ntohl(from.sin_addr.s_addr); - port=ntohs(from.sin_port); - if (*addr == 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); -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; - unsigned long l; - - l=mode; -#ifdef FIONBIO - ret=BIO_socket_ioctl(s,FIONBIO,&l); -#endif - return(ret == 0); - } |