119 lines
3.6 KiB
C
119 lines
3.6 KiB
C
/****************************************************************
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* *
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* Copyright 2001, 2013 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#if defined(__MVS__) && !defined(_ISOC99_SOURCE)
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#define _ISOC99_SOURCE
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#endif
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#include "mdef.h"
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#include <sys/time.h>
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#include <errno.h>
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#include "gtm_stdio.h"
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#include "gtm_string.h"
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#include "gtm_socket.h"
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#include "gtm_netdb.h"
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#include "gtm_ipv6.h"
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#include "gtm_inet.h"
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#include "gtm_fcntl.h"
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#include "gtm_unistd.h"
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#ifdef VMS
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#include <descrip.h> /* Required for gtmsource.h */
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#endif
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#include "gdsroot.h"
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#include "gdsblk.h"
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#include "gtm_facility.h"
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#include "fileinfo.h"
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#include "gdsbt.h"
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#include "gdsfhead.h"
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#include "filestruct.h"
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#include "repl_msg.h"
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#include "gtmsource.h"
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#include "repl_sp.h"
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#include "repl_comm.h"
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#include "repl_log.h"
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GBLDEF int gtmsource_sock_fd = FD_INVALID;
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GBLREF jnlpool_addrs jnlpool;
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GBLREF FILE *gtmsource_log_fp;
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error_def(ERR_REPLCOMM);
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error_def(ERR_GETADDRINFO);
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error_def(ERR_TEXT);
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int gtmsource_comm_init(void)
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{
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/* Initialize communication stuff */
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struct linger disable_linger = {0, 0};
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char error_string[1024];
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int err_status;
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struct addrinfo *ai_ptr = NULL, *ai_head = NULL, hints;
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gtmsource_local_ptr_t gtmsource_local;
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char *host;
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char port_buffer[NI_MAXSERV];
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int port_len;
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int errcode;
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int tries;
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if (FD_INVALID != gtmsource_sock_fd) /* Initialization done already */
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return(0);
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gtmsource_local = jnlpool.gtmsource_local;
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port_len = 0;
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I2A(port_buffer, port_len, gtmsource_local->secondary_port);
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port_buffer[port_len] = '\0';
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host = gtmsource_local->secondary_host;
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CLIENT_HINTS(hints);
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for (tries = 0;
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tries < MAX_GETHOST_TRIES &&
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EAI_AGAIN == (errcode = getaddrinfo(host, port_buffer, &hints, &ai_head));
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tries++);
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if (0 != errcode)
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RTS_ERROR_ADDRINFO(NULL, ERR_GETADDRINFO, errcode);
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/* find one address valid for creating socket */
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assert(ai_head);
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for(ai_ptr = ai_head; NULL != ai_ptr; ai_ptr = ai_ptr->ai_next)
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{
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if (FD_INVALID == (gtmsource_sock_fd = socket(ai_ptr->ai_family, ai_ptr->ai_socktype,
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ai_ptr->ai_protocol)))
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err_status = errno;
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else
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{
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err_status = 0;
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break;
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}
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}
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if (0 != err_status)
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{
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freeaddrinfo(ai_head); /* prevent mem-leak */
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SNPRINTF(error_string, SIZEOF(error_string), "Error with source server socket create : %s",
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STRERROR(err_status));
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rts_error_csa(CSA_ARG(NULL) VARLSTCNT(6) ERR_REPLCOMM, 0, ERR_TEXT, 2, RTS_ERROR_STRING(error_string));
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}
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assert(NULL != ai_ptr);
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assert(SIZEOF(gtmsource_local->secondary_inet_addr) >= ai_ptr->ai_addrlen);
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/* only save the addrinfo and address after the socket is successfuly created */
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gtmsource_local->secondary_af = ai_ptr->ai_family;
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gtmsource_local->secondary_addrlen = ai_ptr->ai_addrlen;
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memcpy((struct sockaddr*)(>msource_local->secondary_inet_addr), ai_ptr->ai_addr, ai_ptr->ai_addrlen);
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freeaddrinfo(ai_head); /* prevent mem-leak */
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/* A connection breakage should get rid of the socket */
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if (-1 == setsockopt(gtmsource_sock_fd, SOL_SOCKET, SO_LINGER, (const void *)&disable_linger, SIZEOF(disable_linger)))
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{
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err_status = ERRNO;
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SNPRINTF(error_string, SIZEOF(error_string), "Error with source server socket disable linger : %s",
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STRERROR(err_status));
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rts_error_csa(CSA_ARG(NULL) VARLSTCNT(6) ERR_REPLCOMM, 0, ERR_TEXT, 2, RTS_ERROR_STRING(error_string));
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}
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return(0);
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}
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