mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-30 11:47:45 +00:00
977 lines
24 KiB
C
977 lines
24 KiB
C
|
/* 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;
|
||
|
socklen_t 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 <= (socklen_t)sizeof(server) ?
|
||
|
res->ai_addrlen :
|
||
|
(socklen_t)sizeof(server);
|
||
|
memcpy(&server, res->ai_addr, (size_t)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 = (socklen_t)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);
|
||
|
}
|
||
|
|
||
|
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);
|
||
|
}
|
||
|
#endif
|