Function constructConnStr

src/bin/pg_dump/pg_dumpall.c:2689–2715

---------- * Construct a connection string from the given keyword/value pairs. It is * used to pass the connection options to the pg_dump subprocess. * * The following parameters are excluded: * dbname - varies in each pg_dump invocation * password - it's not secure to pass a password on the command line * fallback_application_name - we'll let pg_dump set it * ---------- */

 * ----------
 */
static char *
constructConnStr(const char **keywords, const char **values)
{
	PQExpBuffer buf = createPQExpBuffer();
	char	   *connstr;
	int			i;
	bool		firstkeyword = true;

	/* Construct a new connection string in key='value' format. */
	for (i = 0; keywords[i] != NULL; i++)
	{
		if (strcmp(keywords[i], "dbname") == 0 ||
			strcmp(keywords[i], "password") == 0 ||
			strcmp(keywords[i], "fallback_application_name") == 0)
			continue;

		if (!firstkeyword)
			appendPQExpBufferChar(buf, ' ');
		firstkeyword = false;
		appendPQExpBuffer(buf, "%s=", keywords[i]);
		appendConnStrVal(buf, values[i]);
	}

	connstr = pg_strdup(buf->data);
	destroyPQExpBuffer(buf);
	return connstr;
}

/*
 * Run a query, return the results, exit program on failure.