Function pqGets_internal

src/interfaces/libpq/fe-misc.c:116–141

* pqGets[_append]: * get a null-terminated string from the connection, * and store it in an expansible PQExpBuffer. * If we run out of memory, all of the string is still read, * but the excess characters are silently discarded. */

 * but the excess characters are silently discarded.
 */
static int
pqGets_internal(PQExpBuffer buf, PGconn *conn, bool resetbuffer)
{
	/* Copy conn data to locals for faster search loop */
	char	   *inBuffer = conn->inBuffer;
	int			inCursor = conn->inCursor;
	int			inEnd = conn->inEnd;
	int			slen;

	while (inCursor < inEnd && inBuffer[inCursor])
		inCursor++;

	if (inCursor >= inEnd)
		return EOF;

	slen = inCursor - conn->inCursor;

	if (resetbuffer)
		resetPQExpBuffer(buf);

	appendBinaryPQExpBuffer(buf, inBuffer + conn->inCursor, slen);

	conn->inCursor = ++inCursor;

	return 0;
}

int
pqGets(PQExpBuffer buf, PGconn *conn)