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108 lines
2.2 KiB
C++
108 lines
2.2 KiB
C++
/*-------------------------------------------------------------------------
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*
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* FILE
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* PGenv.cc
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*
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* DESCRIPTION
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* PGenv is the environment for setting up a connection to a
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* postgres backend, captures the host, port, tty, options and
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* authentication type.
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*
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* NOTES
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* Currently under construction.
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/interfaces/libpq++/Attic/pgenv.cc,v 1.2 1996/11/18 01:43:55 bryanh Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#include <stdlib.h>
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#include "libpq++.H"
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#define DefaultAuth DEFAULT_CLIENT_AUTHSVC
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#define DefaultPort "5432"
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// default constructor for PGenv
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// checks the environment variables
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PGenv::PGenv()
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{
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pgauth = NULL;
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pghost = NULL;
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pgport = NULL;
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pgoption = NULL;
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pgtty = NULL;
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setValues(getenv(ENV_DEFAULT_AUTH), getenv(ENV_DEFAULT_HOST),
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getenv(ENV_DEFAULT_PORT), getenv(ENV_DEFAULT_OPTION),
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getenv(ENV_DEFAULT_TTY));
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}
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// constructor for given environment
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PGenv::PGenv(char* auth, char* host, char* port, char* option, char* tty)
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{
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pgauth = NULL;
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pghost = NULL;
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pgport = NULL;
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pgoption = NULL;
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pgtty = NULL;
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setValues(auth, host, port, option, tty);
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}
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// allocate memory and set internal structures to match
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// required environment
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void
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PGenv::setValues(char* auth, char* host, char* port, char* option, char* tty)
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{
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char* temp;
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temp = (auth) ? auth : DefaultAuth;
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if (pgauth)
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free(pgauth);
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pgauth = strdup(temp);
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temp = (host) ? host : DefaultHost;
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if (pghost)
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free(pghost);
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pghost = strdup(temp);
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temp = (port) ? port : DefaultPort;
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if (pgport)
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free(pgport);
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pgport = strdup(temp);
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temp = (option) ? option : DefaultOption;
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if (pgoption)
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free(pgoption);
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pgoption = strdup(temp);
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temp = (tty) ? tty : DefaultTty;
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if (pgtty)
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free(pgtty);
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pgtty = strdup(temp);
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}
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// default destrutor
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// frees allocated memory for internal structures
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PGenv::~PGenv()
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{
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if (pgauth)
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free(pgauth);
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if (pghost)
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free(pghost);
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if (pgport)
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free(pgport);
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if (pgoption)
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free(pgoption);
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if (pgtty)
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free(pgtty);
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}
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