1 files changed, 0 insertions, 307 deletions
diff --git a/src/interfaces/libpq/pqexpbuffer.c b/src/interfaces/libpq/pqexpbuffer.c
deleted file mode 100644
index 9d679bb7263..00000000000
--- a/src/interfaces/libpq/pqexpbuffer.c
+++ /dev/null
@@ -1,307 +0,0 @@
-/*-------------------------------------------------------------------------
- *
- * pqexpbuffer.c
- *
- * PQExpBuffer provides an indefinitely-extensible string data type.
- * It can be used to buffer either ordinary C strings (null-terminated text)
- * or arbitrary binary data.  All storage is allocated with malloc().
- *
- * This module is essentially the same as the backend's StringInfo data type,
- * but it is intended for use in frontend libpq and client applications.
- * Thus, it does not rely on palloc() nor elog().
- *
- * It does rely on vsnprintf(); if configure finds that libc doesn't provide
- * a usable vsnprintf(), then a copy of our own implementation of it will
- * be linked into libpq.
- *
- * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of California
- *
- * $Header: /cvsroot/pgsql/src/interfaces/libpq/pqexpbuffer.c,v 1.13 2002/06/20 20:29:54 momjian Exp $
- *
- *-------------------------------------------------------------------------
- */
-
-#include "postgres_fe.h"
-
-#include "pqexpbuffer.h"
-
-#ifdef WIN32
-#include "win32.h"
-#endif
-
-/*
- * createPQExpBuffer
- *
- * Create an empty 'PQExpBufferData' & return a pointer to it.
- */
-PQExpBuffer
-createPQExpBuffer(void)
-{
-	PQExpBuffer res;
-
-	res = (PQExpBuffer) malloc(sizeof(PQExpBufferData));
-	if (res != NULL)
-		initPQExpBuffer(res);
-
-	return res;
-}
-
-/*
- * initPQExpBuffer
- *
- * Initialize a PQExpBufferData struct (with previously undefined contents)
- * to describe an empty string.
- */
-void
-initPQExpBuffer(PQExpBuffer str)
-{
-	str->data = (char *) malloc(INITIAL_EXPBUFFER_SIZE);
-	if (str->data == NULL)
-	{
-		str->maxlen = 0;
-		str->len = 0;
-	}
-	else
-	{
-		str->maxlen = INITIAL_EXPBUFFER_SIZE;
-		str->len = 0;
-		str->data[0] = '\0';
-	}
-}
-
-/*
- * destroyPQExpBuffer(str);
- *
- *		free()s both the data buffer and the PQExpBufferData.
- *		This is the inverse of createPQExpBuffer().
- */
-void
-destroyPQExpBuffer(PQExpBuffer str)
-{
-	if (str)
-	{
-		termPQExpBuffer(str);
-		free(str);
-	}
-}
-
-/*
- * termPQExpBuffer(str)
- *		free()s the data buffer but not the PQExpBufferData itself.
- *		This is the inverse of initPQExpBuffer().
- */
-void
-termPQExpBuffer(PQExpBuffer str)
-{
-	if (str->data)
-	{
-		free(str->data);
-		str->data = NULL;
-	}
-	/* just for luck, make the buffer validly empty. */
-	str->maxlen = 0;
-	str->len = 0;
-}
-
-/*
- * resetPQExpBuffer
- *		Reset a PQExpBuffer to empty
- */
-void
-resetPQExpBuffer(PQExpBuffer str)
-{
-	if (str)
-	{
-		str->len = 0;
-		if (str->data)
-			str->data[0] = '\0';
-	}
-}
-
-/*
- * enlargePQExpBuffer
- * Make sure there is enough space for 'needed' more bytes in the buffer
- * ('needed' does not include the terminating null).
- *
- * Returns 1 if OK, 0 if failed to enlarge buffer.
- */
-int
-enlargePQExpBuffer(PQExpBuffer str, size_t needed)
-{
-	size_t		newlen;
-	char	   *newdata;
-
-	needed += str->len + 1;		/* total space required now */
-	if (needed <= str->maxlen)
-		return 1;				/* got enough space already */
-
-	/*
-	 * We don't want to allocate just a little more space with each
-	 * append; for efficiency, double the buffer size each time it
-	 * overflows. Actually, we might need to more than double it if
-	 * 'needed' is big...
-	 */
-	newlen = (str->maxlen > 0) ? (2 * str->maxlen) : 64;
-	while (needed > newlen)
-		newlen = 2 * newlen;
-
-	newdata = (char *) realloc(str->data, newlen);
-	if (newdata != NULL)
-	{
-		str->data = newdata;
-		str->maxlen = newlen;
-		return 1;
-	}
-	return 0;
-}
-
-/*
- * printfPQExpBuffer
- * Format text data under the control of fmt (an sprintf-like format string)
- * and insert it into str.	More space is allocated to str if necessary.
- * This is a convenience routine that does the same thing as
- * resetPQExpBuffer() followed by appendPQExpBuffer().
- */
-void
-printfPQExpBuffer(PQExpBuffer str, const char *fmt,...)
-{
-	va_list		args;
-	size_t		avail;
-	int			nprinted;
-
-	resetPQExpBuffer(str);
-
-	for (;;)
-	{
-		/*
-		 * Try to format the given string into the available space; but if
-		 * there's hardly any space, don't bother trying, just fall
-		 * through to enlarge the buffer first.
-		 */
-		if (str->maxlen > str->len + 16)
-		{
-			avail = str->maxlen - str->len - 1;
-			va_start(args, fmt);
-			nprinted = vsnprintf(str->data + str->len, avail,
-								 fmt, args);
-			va_end(args);
-
-			/*
-			 * Note: some versions of vsnprintf return the number of chars
-			 * actually stored, but at least one returns -1 on failure. Be
-			 * conservative about believing whether the print worked.
-			 */
-			if (nprinted >= 0 && nprinted < avail - 1)
-			{
-				/* Success.  Note nprinted does not include trailing null. */
-				str->len += nprinted;
-				break;
-			}
-		}
-		/* Double the buffer size and try again. */
-		if (!enlargePQExpBuffer(str, str->maxlen))
-			return;				/* oops, out of memory */
-	}
-}
-
-/*
- * appendPQExpBuffer
- *
- * Format text data under the control of fmt (an sprintf-like format string)
- * and append it to whatever is already in str.  More space is allocated
- * to str if necessary.  This is sort of like a combination of sprintf and
- * strcat.
- */
-void
-appendPQExpBuffer(PQExpBuffer str, const char *fmt,...)
-{
-	va_list		args;
-	size_t		avail;
-	int			nprinted;
-
-	for (;;)
-	{
-		/*
-		 * Try to format the given string into the available space; but if
-		 * there's hardly any space, don't bother trying, just fall
-		 * through to enlarge the buffer first.
-		 */
-		if (str->maxlen > str->len + 16)
-		{
-			avail = str->maxlen - str->len - 1;
-			va_start(args, fmt);
-			nprinted = vsnprintf(str->data + str->len, avail,
-								 fmt, args);
-			va_end(args);
-
-			/*
-			 * Note: some versions of vsnprintf return the number of chars
-			 * actually stored, but at least one returns -1 on failure. Be
-			 * conservative about believing whether the print worked.
-			 */
-			if (nprinted >= 0 && nprinted < avail - 1)
-			{
-				/* Success.  Note nprinted does not include trailing null. */
-				str->len += nprinted;
-				break;
-			}
-		}
-		/* Double the buffer size and try again. */
-		if (!enlargePQExpBuffer(str, str->maxlen))
-			return;				/* oops, out of memory */
-	}
-}
-
-/*
- * appendPQExpBufferStr
- * Append the given string to a PQExpBuffer, allocating more space
- * if necessary.
- */
-void
-appendPQExpBufferStr(PQExpBuffer str, const char *data)
-{
-	appendBinaryPQExpBuffer(str, data, strlen(data));
-}
-
-/*
- * appendPQExpBufferChar
- * Append a single byte to str.
- * Like appendPQExpBuffer(str, "%c", ch) but much faster.
- */
-void
-appendPQExpBufferChar(PQExpBuffer str, char ch)
-{
-	/* Make more room if needed */
-	if (!enlargePQExpBuffer(str, 1))
-		return;
-
-	/* OK, append the character */
-	str->data[str->len] = ch;
-	str->len++;
-	str->data[str->len] = '\0';
-}
-
-/*
- * appendBinaryPQExpBuffer
- *
- * Append arbitrary binary data to a PQExpBuffer, allocating more space
- * if necessary.
- */
-void
-appendBinaryPQExpBuffer(PQExpBuffer str, const char *data, size_t datalen)
-{
-	/* Make more room if needed */
-	if (!enlargePQExpBuffer(str, datalen))
-		return;
-
-	/* OK, append the data */
-	memcpy(str->data + str->len, data, datalen);
-	str->len += datalen;
-
-	/*
-	 * Keep a trailing null in place, even though it's probably useless
-	 * for binary data...
-	 */
-	str->data[str->len] = '\0';
-}