win32.cc
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1 /*
2  * Copyright (C) 1996-2017 The Squid Software Foundation and contributors
3  *
4  * Squid software is distributed under GPLv2+ license and includes
5  * contributions from numerous individuals and organizations.
6  * Please see the COPYING and CONTRIBUTORS files for details.
7  */
8 
9 /* Inspired by previous work by Romeo Anghelache & Eric Stern. */
10 
11 #include "squid.h"
12 
13 #if _SQUID_WINDOWS_
14 
15 #include "fde.h"
16 #include "win32.h"
17 
18 #include <csignal>
19 #if HAVE_WIN32_PSAPI
20 #include <psapi.h>
21 #endif
22 #if HAVE_MSWSOCK_H
23 #include <mswsock.h>
24 #endif
25 
26 SQUIDCEXTERN LPCRITICAL_SECTION dbg_mutex;
28 static LPTOP_LEVEL_EXCEPTION_FILTER Win32_Old_ExceptionHandler = NULL;
29 
30 int
31 Win32__WSAFDIsSet(int fd, fd_set FAR * set)
32 {
33  fde *F = &fd_table[fd];
34  SOCKET s = F->win32.handle;
35 
36  return __WSAFDIsSet(s, set);
37 }
38 
39 LONG CALLBACK WIN32_ExceptionHandler(EXCEPTION_POINTERS* ep)
40 {
41  EXCEPTION_RECORD* er;
42 
43  er = ep->ExceptionRecord;
44 
45  switch (er->ExceptionCode) {
46 
47  case EXCEPTION_ACCESS_VIOLATION:
48  raise(SIGSEGV);
49  break;
50 
51  case EXCEPTION_DATATYPE_MISALIGNMENT:
52 
53  case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
54 
55  case EXCEPTION_IN_PAGE_ERROR:
56  raise(SIGBUS);
57  break;
58 
59  default:
60  break;
61  }
62 
63  return EXCEPTION_CONTINUE_SEARCH;
64 }
65 
66 void WIN32_ExceptionHandlerInit()
67 {
68 #if !defined(_DEBUG)
69 
70  if (Win32_Old_ExceptionHandler == NULL)
71  Win32_Old_ExceptionHandler = SetUnhandledExceptionFilter(WIN32_ExceptionHandler);
72 
73 #endif
74 }
75 
77 {
78  if (Win32_Old_ExceptionHandler != NULL)
79  SetUnhandledExceptionFilter(Win32_Old_ExceptionHandler);
80 }
81 
82 #endif /* SQUID_WINDOWS_ */
83 
#define fd_table
Definition: fde.h:157
#define SQUIDCEXTERN
Definition: squid.h:26
SQUIDCEXTERN LPCRITICAL_SECTION dbg_mutex
Definition: WinSvc.cc:48
void WIN32_ExceptionHandlerCleanup(void)
Definition: fde.h:49
static uint32 F(uint32 X, uint32 Y, uint32 Z)
Definition: md4.c:46
#define NULL
Definition: types.h:166

 

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