check socket creation errors against PGINVALID_SOCKET
Previously, in some places, socket creation errors were checked for
negative values, which is not true for Windows because sockets are
unsigned. This masked socket creation errors on Windows.
Backpatch through 9.0. 8.4 doesn't have the infrastructure to fix this.
Branch
------
REL9_1_STABLE
Details
-------
http://git.postgresql.org/pg/commitdiff/bed499ed1d94f05195c63387d4629644e0df4149
Modified Files
--------------
src/backend/libpq/auth.c | 6 +++---
src/backend/libpq/ip.c | 10 +++++-----
src/backend/libpq/pqcomm.c | 4 ++--
src/backend/port/win32/socket.c | 2 +-
src/backend/postmaster/postmaster.c | 2 +-
src/interfaces/libpq/fe-connect.c | 34 +++++++++++++++++++++++++++++-----
src/interfaces/libpq/libpq-int.h | 1 +
7 files changed, 42 insertions(+), 17 deletions(-)