From: t-ishii@sra.co.jp

6.3 postmaster is supposed to work with pre 6.3 protocol. This is true
for little endian architecture servers. But for big endian machines
such as Sparc the backward compatibility function do not work.
Attached are patches to fix the problem.

diff --git a/src/backend/libpq/pqcomprim.c b/src/backend/libpq/pqcomprim.c
index 7631e1c76500b819450f38aefe83d5df453fb196..17c0a2fba5bc2639bbc125af55f13d7a201d84f3 100644 (file)
--- a/src/backend/libpq/pqcomprim.c
+++ b/src/backend/libpq/pqcomprim.c
@@ -34,12 +34,20 @@
 #else
 #if BYTE_ORDER == BIG_ENDIAN
 
+/*
 #define ntoh_s(n)      (uint16)(((u_char *)&n)[1] << 8 \
                          | ((u_char *)&n)[0])
 #define ntoh_l(n)      (uint32)(((u_char *)&n)[3] << 24 \
                          | ((u_char *)&n)[2] << 16 \
                          | ((u_char *)&n)[1] <<  8 \
                          | ((u_char *)&n)[0])
+*/
+#define ntoh_s(n)      (uint16)((((uint16)n & 0x00ff) <<  8) | \
+                                (((uint16)n & 0xff00) >>  8))
+#define ntoh_l(n)      (uint32)((((uint32)n & 0x000000ff) << 24) | \
+                                (((uint32)n & 0x0000ff00) <<  8) | \
+                                (((uint32)n & 0x00ff0000) >>  8) | \
+                                (((uint32)n & 0xff000000) >> 24))
 #define hton_s(n)      (ntoh_s(n))
 #define hton_l(n)      (ntoh_l(n))