diff options
Diffstat (limited to 'lib/erl_interface/src/epmd/epmd_port.c')
-rw-r--r-- | lib/erl_interface/src/epmd/epmd_port.c | 82 |
1 files changed, 9 insertions, 73 deletions
diff --git a/lib/erl_interface/src/epmd/epmd_port.c b/lib/erl_interface/src/epmd/epmd_port.c index 663b38d2d4..a433815eb7 100644 --- a/lib/erl_interface/src/epmd/epmd_port.c +++ b/lib/erl_interface/src/epmd/epmd_port.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1998-2009. All Rights Reserved. + * Copyright Ericsson AB 1998-2011. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -92,64 +92,6 @@ int ei_epmd_connect_tmo(struct in_addr *inaddr, unsigned ms) return sd; } -/* get the given node's listen port using old epmd protocol */ -static int ei_epmd_r3_port (struct in_addr *addr, const char *alive, - unsigned ms) -{ - char buf[EPMDBUF]; - char *s = buf; - int len = strlen(alive) + 1; - int fd; - int port; - int res; -#if defined(VXWORKS) - char ntoabuf[32]; -#endif - - put16be(s,len); - put8(s,EI_EPMD_PORT_REQ); - strcpy(s,alive); - - /* connect to epmd */ - if ((fd = ei_epmd_connect_tmo(addr,ms)) < 0) - { - /* ei_epmd_connect_tmo() sets erl_errno */ - return -1; - } - - if ((res = ei_write_fill_t(fd, buf, len+2, ms)) != len+2) { - closesocket(fd); - erl_errno = (res == -2) ? ETIMEDOUT : EIO; - return -1; - } - -#ifdef VXWORKS - /* FIXME use union/macro for level. Correct level? */ - if (ei_tracelevel > 2) { - inet_ntoa_b(*addr,ntoabuf); - EI_TRACE_CONN2("ei_epmd_r3_port", - "-> PORT_REQ alive=%s ip=%s",alive,ntoabuf); - } -#else - EI_TRACE_CONN2("ei_epmd_r3_port", - "-> PORT_REQ alive=%s ip=%s",alive,inet_ntoa(*addr)); -#endif - - if ((res = ei_read_fill_t(fd, buf, 2, ms)) != 2) { - EI_TRACE_ERR0("ei_epmd_r3_port","<- CLOSE"); - closesocket(fd); - erl_errno = (res == -2) ? ETIMEDOUT : EIO; - return -1; - } - closesocket(fd); - s = buf; - port = get16be(s); - - EI_TRACE_CONN1("ei_epmd_r3_port","<- PORT_RESP port=%d",port); - - return port; -} - static int ei_epmd_r4_port (struct in_addr *addr, const char *alive, int *dist, unsigned ms) { @@ -164,6 +106,12 @@ static int ei_epmd_r4_port (struct in_addr *addr, const char *alive, #if defined(VXWORKS) char ntoabuf[32]; #endif + + if (len > sizeof(buf) - 3) + { + erl_errno = ERANGE; + return -1; + } put16be(s,len); put8(s,EI_EPMD_PORT2_REQ); @@ -280,20 +228,8 @@ int ei_epmd_port (struct in_addr *addr, const char *alive, int *dist) return ei_epmd_port_tmo (addr, alive, dist, 0); } -int ei_epmd_port_tmo (struct in_addr *addr, const char *alive, int *dist, - unsigned ms) +int ei_epmd_port_tmo (struct in_addr *addr, const char *alive, int *dist, unsigned ms) { - int i; - - /* try the new one first, then the old one */ - i = ei_epmd_r4_port(addr,alive,dist,ms); - - /* -2: new protocol not understood */ - if (i == -2) { - *dist = 0; - i = ei_epmd_r3_port(addr,alive,ms); - } - - return i; + return ei_epmd_r4_port(addr,alive,dist,ms); } |