Fix a couple little problems with signed vs. unsigned

characters ...

src/backend/libpq/pqcomm.c

@@ -5,7 +5,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- *  $Id: pqcomm.c,v 1.64 1999/01/23 22:27:28 tgl Exp $
+ *  $Id: pqcomm.c,v 1.65 1999/01/24 02:47:15 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -83,8 +83,8 @@ extern FILE * debug_port; /* in util.c */
 /*
  * Buffers 
  */
-char PqSendBuffer[PQ_BUFFER_SIZE];
-char PqRecvBuffer[PQ_BUFFER_SIZE];
+unsigned char PqSendBuffer[PQ_BUFFER_SIZE];
+unsigned char PqRecvBuffer[PQ_BUFFER_SIZE];
 int PqSendPointer,PqRecvPointer,PqRecvLength;
 
 
@@ -173,8 +173,8 @@ pq_close()
 int
 pq_flush()
 {
-	char *bufptr = PqSendBuffer;
-	char *bufend = PqSendBuffer + PqSendPointer;
+	unsigned char *bufptr = PqSendBuffer;
+	unsigned char *bufend = PqSendBuffer + PqSendPointer;
 
 	while (bufptr < bufend)
 	{
@@ -725,7 +725,7 @@ pq_putncharlen(char *s, int n)
  * Act like the stdio putc() function. Write one character
  * to the stream. Return this character, or EOF on error.
  */
-int pq_putchar(char c) 
+int pq_putchar(unsigned char c) 
 {
 	if (PqSendPointer >= PQ_BUFFER_SIZE)
 		if (pq_flush())			/* If buffer is full, then flush it out */

src/include/libpq/libpq.h

@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: libpq.h,v 1.24 1999/01/23 22:27:25 tgl Exp $
+ * $Id: libpq.h,v 1.25 1999/01/24 02:47:15 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -263,7 +263,7 @@ extern int	pq_getchar(void);
 extern int	pq_peekchar(void);
 extern int	pq_getnchar(char *s, int off, int maxlen);
 extern int	pq_getint(int b);
-extern int  pq_putchar(char c);
+extern int  pq_putchar(unsigned char c);
 extern void pq_putstr(char *s);
 extern void pq_putnchar(char *s, int n);
 extern void pq_putint(int i, int b);
@@ -291,9 +291,9 @@ extern void StreamClose(int sock);
 
 #define PQ_BUFFER_SIZE 8192
 
-extern char PqSendBuffer[PQ_BUFFER_SIZE];
+extern unsigned char PqSendBuffer[PQ_BUFFER_SIZE];
 extern int PqSendPointer;	/* Next index to store a byte in PqSendBuffer */
-extern char PqRecvBuffer[PQ_BUFFER_SIZE];
+extern unsigned char PqRecvBuffer[PQ_BUFFER_SIZE];
 extern int PqRecvPointer;	/* Next index to read a byte from PqRecvBuffer */
 extern int PqRecvLength;	/* End of data available in PqRecvBuffer */