/* sockunion_connect returns
-1 : error occured
0 : connect success
1 : connect is in progress */
enum connect_result
sockunion_connect (int fd, union sockunion *peersu, unsigned short port,
unsigned int ifindex)
{
int ret;
int val = 1;
union sockunion su;
//inet_ntop(AF_INET, &sin.sin_addr, buf, 256);
//fprintf(stderr, "convert from dstip %s address to union address success\n", buf);
memcpy(&su, peersu, sizeof(union sockunion));
printf ( "try connect to %s:%d fd %d : %s",sockunion_log ( &su ), ntohs(port), fd, strerror ( errno ) );
/* Call connect function. */
ret = connect(fd, (struct sockaddr *) &su, sockunion_sizeof(&su));
val = 0; /* added by fanky 2004 0601 */
/* Immediate success */
if (ret == 0)
{
ret = ioctl(fd, FIONBIO, &val);
return connect_success;
}
/* If connect is in progress then return 1 else it's real error. */
if (ret < 0)
{
if (errno != EINPROGRESS)
{
printf ( "can't connect to %s fd %d : %s",
sockunion_log ( &su ), fd, strerror ( errno ) );
return connect_error;
}
}
return connect_in_progress;
}
/* Performs a non-blocking connect(). */
enum connect_result sockunion_connect(int fd, const union sockunion *peersu,
unsigned short port, ifindex_t ifindex)
{
int ret;
union sockunion su;
memcpy(&su, peersu, sizeof(union sockunion));
switch (su.sa.sa_family) {
case AF_INET:
su.sin.sin_port = port;
break;
case AF_INET6:
su.sin6.sin6_port = port;
#ifdef KAME
if (IN6_IS_ADDR_LINKLOCAL(&su.sin6.sin6_addr) && ifindex) {
su.sin6.sin6_scope_id = ifindex;
SET_IN6_LINKLOCAL_IFINDEX(su.sin6.sin6_addr, ifindex);
}
#endif /* KAME */
break;
}
/* Call connect function. */
ret = connect(fd, (struct sockaddr *)&su, sockunion_sizeof(&su));
/* Immediate success */
if (ret == 0)
return connect_success;
/* If connect is in progress then return 1 else it's real error. */
if (ret < 0) {
if (errno != EINPROGRESS) {
char str[SU_ADDRSTRLEN];
zlog_info("can't connect to %s fd %d : %s",
sockunion_log(&su, str, sizeof str), fd,
safe_strerror(errno));
return connect_error;
}
}
return connect_in_progress;
}
/* sockunion_connect returns
-1 : error occured
0 : connect success
1 : connect is in progress */
enum connect_result
sockunion_connect (int fd, union sockunion *peersu, unsigned short port,
unsigned int ifindex)
{
int ret;
int val;
union sockunion su;
memcpy (&su, peersu, sizeof (union sockunion));
switch (su.sa.sa_family)
{
case AF_INET:
su.sin.sin_port = port;
break;
#ifdef HAVE_IPV6
case AF_INET6:
su.sin6.sin6_port = port;
#ifdef KAME
if (IN6_IS_ADDR_LINKLOCAL(&su.sin6.sin6_addr) && ifindex)
{
#ifdef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID
/* su.sin6.sin6_scope_id = ifindex; */
#ifdef MUSICA
su.sin6.sin6_scope_id = ifindex;
#endif
#endif /* HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID */
#ifndef MUSICA
SET_IN6_LINKLOCAL_IFINDEX (su.sin6.sin6_addr, ifindex);
#endif
}
#endif /* KAME */
break;
#endif /* HAVE_IPV6 */
}
/* Make socket non-block. */
val = fcntl (fd, F_GETFL, 0);
fcntl (fd, F_SETFL, val|O_NONBLOCK);
/* Call connect function. */
ret = connect (fd, (struct sockaddr *) &su, sockunion_sizeof (&su));
/* Immediate success */
if (ret == 0)
{
fcntl (fd, F_SETFL, val);
return connect_success;
}
/* If connect is in progress then return 1 else it's real error. */
if (ret < 0)
{
if (errno != EINPROGRESS)
{
char str[SU_ADDRSTRLEN];
zlog_info ("can't connect to %s fd %d : %s",
sockunion_log (&su, str, sizeof str),
fd, safe_strerror (errno));
return connect_error;
}
}
fcntl (fd, F_SETFL, val);
return connect_in_progress;
}
/* sockunion_connect returns
-1 : error occured
0 : connect success
1 : connect is in progress */
enum connect_result
sockunion_connect (int fd, union sockunion *peersu, unsigned short port,
unsigned int ifindex)
{
int ret;
int val;
union sockunion su;
int ret2=0;
memcpy (&su, peersu, sizeof (union sockunion));
switch (su.sa.sa_family)
{
case AF_INET:
su.sin.sin_port = port;
break;
#ifdef HAVE_IPV6
case AF_INET6:
su.sin6.sin6_port = port;
#ifdef KAME
if (IN6_IS_ADDR_LINKLOCAL(&su.sin6.sin6_addr) && ifindex)
{
#ifdef HAVE_SIN6_SCOPE_ID
/* su.sin6.sin6_scope_id = ifindex; */
#ifdef MUSICA
su.sin6.sin6_scope_id = ifindex;
#endif
#endif /* HAVE_SIN6_SCOPE_ID */
#ifndef MUSICA
SET_IN6_LINKLOCAL_IFINDEX (su.sin6.sin6_addr, ifindex);
#endif
}
#endif /* KAME */
break;
#endif /* HAVE_IPV6 */
}
/* Make socket non-block. */
val = fcntl (fd, F_GETFL, 0);
/*CID 10316 (#1 of 3): Unchecked return value from library (CHECKED_RETURN)
3. check_return: Calling function "fcntl(fd, 4, val | 0x80)" without checking return value. This library function may fail and return an error code.
Add check return value.*/
/*fcntl (fd, F_SETFL, val|O_NONBLOCK);*/
ret = fcntl (fd, F_SETFL, val|O_NONBLOCK);
if(ret < 0)
zlog_warn("%s: line %d, fcntl failed : %s .\n",__func__,__LINE__,safe_strerror(errno));
/* Call connect function. */
ret = connect (fd, (struct sockaddr *) &su, sockunion_sizeof (&su));
/* Immediate success */
if (ret == 0)
{
/*CID 10316 (#2 of 3): Unchecked return value from library (CHECKED_RETURN)
4. check_return: Calling function "fcntl(fd, 4, val)" without checking return value. This library function may fail and return an error code.
Change , add check return value.*/
/*fcntl (fd, F_SETFL, val);*/
ret2 = fcntl (fd, F_SETFL, val);
if(ret < 0)
zlog_warn("%s: line %d, fcntl failed : %s .\n",__func__,__LINE__,safe_strerror(errno));
return connect_success;
}
/* If connect is in progress then return 1 else it's real error. */
if (ret < 0)
{
if (errno != EINPROGRESS)
{
char *log_str = sockunion_log (&su);
zlog_info ("can't connect to %s fd %d : %s",
log_str, fd, safe_strerror (errno));
free(log_str);
return connect_error;
}
}
/*CID 10316 (#3 of 3): Unchecked return value from library (CHECKED_RETURN)
6. check_return: Calling function "fcntl(fd, 4, val)" without checking return value. This library function may fail and return an error code.
Add check return value.*/
/*fcntl (fd, F_SETFL, val);*/
ret2 = fcntl (fd, F_SETFL, val);
if(ret < 0)
zlog_warn("%s: line %d, fcntl failed : %s .\n",__func__,__LINE__,safe_strerror(errno));
return connect_in_progress;
}