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/*-------------------------------------------------------------------------
*
* pqcomm.h
* Definitions common to frontends and backends.
*
* NOTE: for historical reasons, this does not correspond to pqcomm.c.
* pqcomm.c's routines are declared in libpq.h.
*
* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
* Portions Copyright (c) 2010-2012 Postgres-XC Development Group
*
* $PostgreSQL: pgsql/src/include/libpq/pqcomm.h,v 1.109 2008/10/28 12:10:44 mha Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef PQCOMM_H
#define PQCOMM_H
#include <sys/socket.h>
#include <netdb.h>
#ifdef HAVE_SYS_UN_H
#include <sys/un.h>
#endif
#include <netinet/in.h>
typedef struct
{
struct sockaddr_storage addr;
size_t salen;
} SockAddr;
/* Configure the UNIX socket location for the well known port. */
#define UNIXSOCK_PATH(path, port, sockdir) \
snprintf(path, sizeof(path), "%s/.s.PGSQL.%d", \
((sockdir) && *(sockdir) != '\0') ? (sockdir) : \
DEFAULT_PGSOCKET_DIR, \
(port))
/*
* In protocol 3.0 and later, the startup packet length is not fixed, but
* we set an arbitrary limit on it anyway. This is just to prevent simple
* denial-of-service attacks via sending enough data to run the server
* out of memory.
*/
#define MAX_STARTUP_PACKET_LENGTH 10000
#endif /* PQCOMM_H */
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