fis-gtm/sr_unix_gnp/cmi_peer_info.c

61 lines
1.7 KiB
C

/****************************************************************
* *
* Copyright 2002, 2013 Fidelity Information Services, Inc *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
#if defined(__MVS__) && !defined(_ISOC99_SOURCE)
#define _ISOC99_SOURCE
#endif
#include <errno.h> /* for errno, used by RTS_ERROR_ADDRINFO */
#include "mdef.h"
#include "cmidef.h"
#include "gtm_netdb.h"
#include "gtm_socket.h"
#include "gtm_stdio.h"
#include "iotcpdef.h"
#include "gtm_string.h" /* for rts_error */
/* return in a the char * the ASCII representation of a network address.
Returned as:
"hostid (nn.nn.nn.nn)" or "nn.nn.nn.nn" depending on whether or not
the host is listed in /etc/hosts.
*/
error_def(ERR_GETNAMEINFO);
error_def(ERR_TEXT);
void cmi_peer_info(struct CLB *lnk, char *buf, size_t sz)
{
struct addrinfo *ai_ptr;
char hostname[SA_MAXLITLEN];
char ipname[SA_MAXLEN];
char port_str[NI_MAXSERV];
int errcode;
ai_ptr = &lnk->peer_ai;
if (0 != (errcode = getnameinfo(ai_ptr->ai_addr, ai_ptr->ai_addrlen,
ipname, SA_MAXLEN,
port_str, NI_MAXSERV, NI_NUMERICHOST | NI_NUMERICSERV)))
{
assert(0);
RTS_ERROR_ADDRINFO(NULL, ERR_GETNAMEINFO, errcode);
return;
}
if (0 != (errcode = getnameinfo(ai_ptr->ai_addr, ai_ptr->ai_addrlen,
hostname, SA_MAXLITLEN,
NULL, 0, 0)))
{
assert(0);
RTS_ERROR_ADDRINFO(NULL, ERR_GETNAMEINFO, errcode);
return;
}
SNPRINTF(buf, sz, "%s (%s:%s)", hostname, ipname, port_str);
}