From 2a969b7f4bdb223d3626dc14b684701942ccafb2 Mon Sep 17 00:00:00 2001 From: Karen Arutyunov Date: Thu, 21 Sep 2017 01:02:04 +0300 Subject: Make package to be source rather than stub --- libpq/win32/win32.c | 327 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 327 insertions(+) create mode 100644 libpq/win32/win32.c (limited to 'libpq/win32/win32.c') diff --git a/libpq/win32/win32.c b/libpq/win32/win32.c new file mode 100644 index 0000000..1b7ad37 --- /dev/null +++ b/libpq/win32/win32.c @@ -0,0 +1,327 @@ +/* + * src/interfaces/libpq/win32.c + * + * + * FILE + * win32.c + * + * DESCRIPTION + * Win32 support functions. + * + * Contains table and functions for looking up win32 socket error + * descriptions. But will/may contain other win32 helper functions + * for libpq. + * + * The error constants are taken from the Frambak Bakfram LGSOCKET + * library guys who in turn took them from the Winsock FAQ. + * + * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + */ + +/* Make stuff compile faster by excluding not used stuff */ + +#define VC_EXTRALEAN +#ifndef __MINGW32__ +#define NOGDI +#endif +#define NOCRYPT + +#include "postgres_fe.h" + +#include "win32.h" + +/* Declared here to avoid pulling in all includes, which causes name collisions */ +#ifdef ENABLE_NLS +extern char *libpq_gettext(const char *msgid) pg_attribute_format_arg(1); +#else +#define libpq_gettext(x) (x) +#endif + + +static struct WSErrorEntry +{ + DWORD error; + const char *description; +} WSErrors[] = + +{ + { + 0, "No error" + }, + { + WSAEINTR, "Interrupted system call" + }, + { + WSAEBADF, "Bad file number" + }, + { + WSAEACCES, "Permission denied" + }, + { + WSAEFAULT, "Bad address" + }, + { + WSAEINVAL, "Invalid argument" + }, + { + WSAEMFILE, "Too many open sockets" + }, + { + WSAEWOULDBLOCK, "Operation would block" + }, + { + WSAEINPROGRESS, "Operation now in progress" + }, + { + WSAEALREADY, "Operation already in progress" + }, + { + WSAENOTSOCK, "Socket operation on non-socket" + }, + { + WSAEDESTADDRREQ, "Destination address required" + }, + { + WSAEMSGSIZE, "Message too long" + }, + { + WSAEPROTOTYPE, "Protocol wrong type for socket" + }, + { + WSAENOPROTOOPT, "Bad protocol option" + }, + { + WSAEPROTONOSUPPORT, "Protocol not supported" + }, + { + WSAESOCKTNOSUPPORT, "Socket type not supported" + }, + { + WSAEOPNOTSUPP, "Operation not supported on socket" + }, + { + WSAEPFNOSUPPORT, "Protocol family not supported" + }, + { + WSAEAFNOSUPPORT, "Address family not supported" + }, + { + WSAEADDRINUSE, "Address already in use" + }, + { + WSAEADDRNOTAVAIL, "Cannot assign requested address" + }, + { + WSAENETDOWN, "Network is down" + }, + { + WSAENETUNREACH, "Network is unreachable" + }, + { + WSAENETRESET, "Net connection reset" + }, + { + WSAECONNABORTED, "Software caused connection abort" + }, + { + WSAECONNRESET, "Connection reset by peer" + }, + { + WSAENOBUFS, "No buffer space available" + }, + { + WSAEISCONN, "Socket is already connected" + }, + { + WSAENOTCONN, "Socket is not connected" + }, + { + WSAESHUTDOWN, "Cannot send after socket shutdown" + }, + { + WSAETOOMANYREFS, "Too many references, cannot splice" + }, + { + WSAETIMEDOUT, "Connection timed out" + }, + { + WSAECONNREFUSED, "Connection refused" + }, + { + WSAELOOP, "Too many levels of symbolic links" + }, + { + WSAENAMETOOLONG, "File name too long" + }, + { + WSAEHOSTDOWN, "Host is down" + }, + { + WSAEHOSTUNREACH, "No route to host" + }, + { + WSAENOTEMPTY, "Directory not empty" + }, + { + WSAEPROCLIM, "Too many processes" + }, + { + WSAEUSERS, "Too many users" + }, + { + WSAEDQUOT, "Disc quota exceeded" + }, + { + WSAESTALE, "Stale NFS file handle" + }, + { + WSAEREMOTE, "Too many levels of remote in path" + }, + { + WSASYSNOTREADY, "Network system is unavailable" + }, + { + WSAVERNOTSUPPORTED, "Winsock version out of range" + }, + { + WSANOTINITIALISED, "WSAStartup not yet called" + }, + { + WSAEDISCON, "Graceful shutdown in progress" + }, + { + WSAHOST_NOT_FOUND, "Host not found" + }, + { + WSATRY_AGAIN, "NA Host not found / SERVFAIL" + }, + { + WSANO_RECOVERY, "Non recoverable FORMERR||REFUSED||NOTIMP" + }, + { + WSANO_DATA, "No host data of that type was found" + }, + { + 0, 0 + } /* End of table */ +}; + + +/* + * Returns 0 if not found, linear but who cares, at this moment + * we're already in pain :) + */ + +static int +LookupWSErrorMessage(DWORD err, char *dest) +{ + struct WSErrorEntry *e; + + for (e = WSErrors; e->description; e++) + { + if (e->error == err) + { + strcpy(dest, e->description); + return 1; + } + } + return 0; +} + + +struct MessageDLL +{ + const char *dll_name; + void *handle; + int loaded; /* BOOL */ +} dlls[] = + +{ + { + "netmsg.dll", 0, 0 + }, + { + "winsock.dll", 0, 0 + }, + { + "ws2_32.dll", 0, 0 + }, + { + "wsock32n.dll", 0, 0 + }, + { + "mswsock.dll", 0, 0 + }, + { + "ws2help.dll", 0, 0 + }, + { + "ws2thk.dll", 0, 0 + }, + { + 0, 0, 1 + } /* Last one, no dll, always loaded */ +}; + +#define DLLS_SIZE (sizeof(dlls)/sizeof(struct MessageDLL)) + +/* + * Returns a description of the socket error by first trying + * to find it in the lookup table, and if that fails, tries + * to load any of the winsock dlls to find that message. + * The DLL thing works from Nt4 (spX ?) up, but some special + * versions of winsock might have this as well (seen on Win98 SE + * special install) / Magnus Naeslund (mag@fbab.net) + * + */ + +const char * +winsock_strerror(int err, char *strerrbuf, size_t buflen) +{ + unsigned long flags; + int offs, + i; + int success = LookupWSErrorMessage(err, strerrbuf); + + for (i = 0; !success && i < DLLS_SIZE; i++) + { + + if (!dlls[i].loaded) + { + dlls[i].loaded = 1; /* Only load once */ + dlls[i].handle = (void *) LoadLibraryEx( + dlls[i].dll_name, + 0, + LOAD_LIBRARY_AS_DATAFILE); + } + + if (dlls[i].dll_name && !dlls[i].handle) + continue; /* Didn't load */ + + flags = FORMAT_MESSAGE_FROM_SYSTEM + | FORMAT_MESSAGE_IGNORE_INSERTS + | (dlls[i].handle ? FORMAT_MESSAGE_FROM_HMODULE : 0); + + success = 0 != FormatMessage( + flags, + dlls[i].handle, err, + MAKELANGID(LANG_ENGLISH, SUBLANG_DEFAULT), + strerrbuf, buflen - 64, + 0 + ); + } + + if (!success) + sprintf(strerrbuf, libpq_gettext("unrecognized socket error: 0x%08X/%d"), err, err); + else + { + strerrbuf[buflen - 1] = '\0'; + offs = strlen(strerrbuf); + if (offs > (int) buflen - 64) + offs = buflen - 64; + sprintf(strerrbuf + offs, " (0x%08X/%d)", err, err); + } + return strerrbuf; +} -- cgit v1.1