ReactOS  0.4.14-dev-77-gd9e7c48
NtContinue.c File Reference
#include "precomp.h"
#include <setjmp.h>
#include <time.h>
Include dependency graph for NtContinue.c:

Go to the source code of this file.

Functions

void continuePoint (void)
 
static int initrand (void)
 
static void randbytes (void *p, size_t n)
 
static ULONG randULONG (void)
 
void check (CONTEXT *pContext)
 
 START_TEST (NtContinue)
 

Variables

static jmp_buf jmpbuf
 
static CONTEXT continueContext
 
static unsigned int nRandBytes
 

Function Documentation

◆ check()

void check ( CONTEXT pContext)

Definition at line 61 of file NtContinue.c.

62 {
63 #ifdef _M_IX86
64  ok(pContext->ContextFlags == CONTEXT_FULL,
65  "ContextFlags=0x%lx\n", pContext->ContextFlags);
66 
67  /* Random data segments */
68  ok((pContext->SegGs & NTC_SEGMENT_BITS) ==
69  (continueContext.SegGs & NTC_SEGMENT_BITS),
70  "SegGs=0x%lx / 0x%lx\n", pContext->SegGs, continueContext.SegGs);
71 
72  ok((pContext->SegFs & NTC_SEGMENT_BITS) ==
73  (continueContext.SegFs & NTC_SEGMENT_BITS),
74  "SegFs=0x%lx / 0x%lx\n", pContext->SegFs, continueContext.SegFs);
75 
76  ok((pContext->SegEs & NTC_SEGMENT_BITS) ==
77  (continueContext.SegEs & NTC_SEGMENT_BITS),
78  "SegEs=0x%lx / 0x%lx\n", pContext->SegEs, continueContext.SegEs);
79 
80  ok((pContext->SegDs & NTC_SEGMENT_BITS) ==
81  (continueContext.SegDs & NTC_SEGMENT_BITS),
82  "SegDs=0x%lx / 0x%lx\n", pContext->SegDs, continueContext.SegDs);
83 
84  /* Integer registers */
85  ok(pContext->Edi == continueContext.Edi,
86  "Edi: 0x%lx != 0x%lx\n", pContext->Edi, continueContext.Edi);
87  ok(pContext->Esi == continueContext.Esi,
88  "Esi: 0x%lx != 0x%lx\n", pContext->Esi, continueContext.Esi);
89  ok(pContext->Ebx == continueContext.Ebx,
90  "Ebx: 0x%lx != 0x%lx\n", pContext->Ebx, continueContext.Ebx);
91  ok(pContext->Edx == continueContext.Edx,
92  "Edx: 0x%lx != 0x%lx\n", pContext->Edx, continueContext.Edx);
93  ok(pContext->Ecx == continueContext.Ecx,
94  "Ecx: 0x%lx != 0x%lx\n", pContext->Ecx, continueContext.Ecx);
95  ok(pContext->Eax == continueContext.Eax,
96  "Eax: 0x%lx != 0x%lx\n", pContext->Eax, continueContext.Eax);
97 
98  /* Control registers and segments */
99  ok(pContext->Ebp == continueContext.Ebp,
100  "Ebp: 0x%lx != 0x%lx\n", pContext->Ebp, continueContext.Ebp);
101  ok(pContext->Eip == continueContext.Eip,
102  "Eip: 0x%lx != 0x%lx\n", pContext->Eip, continueContext.Eip);
103  ok(pContext->Esp == continueContext.Esp,
104  "Esp: 0x%lx != 0x%lx\n", pContext->Esp, continueContext.Esp);
105 
106  ok((pContext->SegCs & NTC_SEGMENT_BITS) ==
107  (continueContext.SegCs & NTC_SEGMENT_BITS),
108  "SegCs: 0x%lx != 0x%lx\n", pContext->SegCs, continueContext.SegCs);
109 
110  ok((pContext->EFlags & NTC_EFLAGS_BITS) ==
111  (continueContext.EFlags & NTC_EFLAGS_BITS),
112  "EFlags: 0x%lx != 0x%lx\n", pContext->EFlags, continueContext.EFlags);
113 
114  ok((pContext->SegSs & NTC_SEGMENT_BITS) ==
115  (continueContext.SegSs & NTC_SEGMENT_BITS),
116  "SegSs: 0x%lx != 0x%lx\n", pContext->SegSs, continueContext.SegSs);
117 #endif
118 
119  /* Return where we came from */
120  longjmp(jmpbuf, 1);
121 }
ULONG Esp
Definition: nt_native.h:1479
ULONG Eip
Definition: nt_native.h:1476
ULONG Ecx
Definition: nt_native.h:1467
ULONG SegGs
Definition: nt_native.h:1453
#define CONTEXT_FULL
Definition: compat.h:270
ULONG SegFs
Definition: nt_native.h:1454
ULONG SegDs
Definition: nt_native.h:1456
ULONG SegEs
Definition: nt_native.h:1455
ULONG Esi
Definition: nt_native.h:1464
ULONG SegCs
Definition: nt_native.h:1477
ULONG Edx
Definition: nt_native.h:1466
ULONG EFlags
Definition: nt_native.h:1478
ULONG Ebx
Definition: nt_native.h:1465
int longjmp(jmp_buf buf, int retval)
ULONG ContextFlags
Definition: compat.h:331
static CONTEXT continueContext
Definition: NtContinue.c:21
ULONG Eax
Definition: nt_native.h:1468
ULONG SegSs
Definition: nt_native.h:1480
#define ok(value,...)
Definition: atltest.h:57
static jmp_buf jmpbuf
Definition: NtContinue.c:20
ULONG Ebp
Definition: nt_native.h:1475
ULONG Edi
Definition: nt_native.h:1463

Referenced by _BitScanReverse(), _find_font_for_range(), cache_basic_authorization(), check_admin_rights(), check_format(), check_reg_dword(), check_reg_str(), checkChainPolicyStatus(), CheckMenuRadioItem(), ComputeNormal(), CRYPT_CheckRestrictedRoot(), DocumentMgr_Push(), enum_stream_names(), ext4_ext_space_block(), ext4_ext_space_block_idx(), ext4_ext_space_root(), ext4_ext_space_root_idx(), get_cluster_size(), getwinmetafilebits(), inflateValidate(), isCmd(), isCmdWithArg(), IsOpt(), ITERATE_FindRelatedProducts(), KeystrokeMgr_AdviseKeyEventSink(), KeystrokeMgr_UnadviseKeyEventSink(), licence_process_issue(), msi_set_sourcedir_props(), np_enum(), parse_consonant_syllable(), save_mfpict(), ScriptCPtoX(), CListView::SetCheckState(), test_pbo_functionality(), test_texture_qi(), ThreadMgr_SetFocus(), VerifyObjectOwner(), wWinMain(), xmlParseConditionalSections(), xmlParseExternalSubset(), xmlParseInternalSubset(), xsltCheckRead(), xsltCheckWrite(), and xsltCheckWritePath().

◆ continuePoint()

void continuePoint ( void  )

Referenced by START_TEST().

◆ initrand()

static int initrand ( void  )
static

Definition at line 24 of file NtContinue.c.

25 {
26  unsigned int nRandMax;
27  unsigned int nRandMaxBits;
28  time_t tLoc;
29 
30  nRandMax = RAND_MAX;
31  for(nRandMaxBits = 0; nRandMax != 0; nRandMax >>= 1, ++ nRandMaxBits);
32  nRandBytes = nRandMaxBits / CHAR_BIT;
33  //assert(nRandBytes != 0);
34  srand((unsigned)(time(&tLoc) & UINT_MAX));
35  return 1;
36 }
static unsigned int nRandBytes
Definition: NtContinue.c:22
void __cdecl srand(_In_ unsigned int _Seed)
#define CHAR_BIT
Definition: urlcache.c:57
__u16 time
Definition: mkdosfs.c:366
#define RAND_MAX
Definition: stdlib.h:99
#define UINT_MAX
Definition: limits.h:41
__kernel_time_t time_t
Definition: linux.h:252

Referenced by START_TEST().

◆ randbytes()

static void randbytes ( void p,
size_t  n 
)
static

Definition at line 38 of file NtContinue.c.

39 {
40  unsigned char * b;
41  size_t i;
42  int r = rand();
43 
44  b = (unsigned char *)p;
45  for(i = 0; i < n; ++ i)
46  {
47  if(i % nRandBytes == 0)
48  r = rand();
49  b[i] = (unsigned char)(r & UCHAR_MAX);
50  r >>= CHAR_BIT;
51  }
52 }
static unsigned int nRandBytes
Definition: NtContinue.c:22
GLdouble GLdouble GLdouble r
Definition: gl.h:2055
GLdouble n
Definition: glext.h:7729
#define CHAR_BIT
Definition: urlcache.c:57
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
_Check_return_ int __cdecl rand(void)
Definition: rand.c:10
unsigned char
Definition: typeof.h:29
#define b
Definition: ke_i.h:79
GLboolean GLboolean GLboolean b
Definition: glext.h:6204
#define UCHAR_MAX
Definition: limits.h:25
GLfloat GLfloat p
Definition: glext.h:8902

Referenced by randULONG().

◆ randULONG()

static ULONG randULONG ( void  )
static

Definition at line 54 of file NtContinue.c.

55 {
56  ULONG n;
57  randbytes(&n, sizeof(n));
58  return n;
59 }
GLdouble n
Definition: glext.h:7729
unsigned int ULONG
Definition: retypes.h:1
static void randbytes(void *p, size_t n)
Definition: NtContinue.c:38

Referenced by START_TEST().

◆ START_TEST()

START_TEST ( NtContinue  )

Definition at line 123 of file NtContinue.c.

124 {
125 #ifdef __RUNTIME_CHECKS__
126  skip("This test breaks MSVC runtime checks!\n");
127  return;
128 #endif /* __RUNTIME_CHECKS__ */
129  initrand();
130 
131  /* First time */
132  if(setjmp(jmpbuf) == 0)
133  {
134  CONTEXT bogus;
135 
138 
139 #ifdef _M_IX86
141 
142  /* Fill the integer registers with random values */
150 
151  /* Randomize all the allowed flags (determined experimentally with WinDbg) */
152  continueContext.EFlags = randULONG() & 0x3C0CD5;
153 
154  /* Randomize the stack pointer as much as possible */
155  continueContext.Esp = (ULONG)(((ULONG_PTR)&bogus) & 0xFFFFFFFF) +
156  sizeof(bogus) - (randULONG() & 0xF) * 4;
157 
158  /* continuePoint() is implemented in assembler */
159  continueContext.Eip = (ULONG)((ULONG_PTR)continuePoint & 0xFFFFFFF);
160 
161  /* Can't do a lot about segments */
162 #endif
163 
165  ok(0, "should never get here\n");
166  }
167 
168  /* Second time */
169  return;
170 }
ULONG Esp
Definition: nt_native.h:1479
ULONG Eip
Definition: nt_native.h:1476
ULONG Ecx
Definition: nt_native.h:1467
#define CONTEXT_FULL
Definition: compat.h:270
uint32_t ULONG_PTR
Definition: typedefs.h:63
BOOL WINAPI GetThreadContext(IN HANDLE hThread, OUT LPCONTEXT lpContext)
Definition: thread.c:500
HANDLE WINAPI GetCurrentThread(VOID)
Definition: proc.c:1148
NTSTATUS NTAPI NtContinue(IN PCONTEXT Context, IN BOOLEAN TestAlert)
Definition: except.c:212
ULONG Esi
Definition: nt_native.h:1464
ULONG Edx
Definition: nt_native.h:1466
ULONG EFlags
Definition: nt_native.h:1478
ULONG Ebx
Definition: nt_native.h:1465
ULONG ContextFlags
Definition: compat.h:331
static CONTEXT continueContext
Definition: NtContinue.c:21
static ULONG randULONG(void)
Definition: NtContinue.c:54
void continuePoint(void)
ULONG Eax
Definition: nt_native.h:1468
static int initrand(void)
Definition: NtContinue.c:24
#define ok(value,...)
Definition: atltest.h:57
#define setjmp
Definition: setjmp.h:183
#define skip(...)
Definition: atltest.h:64
unsigned int ULONG
Definition: retypes.h:1
static jmp_buf jmpbuf
Definition: NtContinue.c:20
ULONG Ebp
Definition: nt_native.h:1475
ULONG Edi
Definition: nt_native.h:1463

Variable Documentation

◆ continueContext

CONTEXT continueContext
static

Definition at line 21 of file NtContinue.c.

Referenced by check(), and START_TEST().

◆ jmpbuf

jmp_buf jmpbuf
static

Definition at line 20 of file NtContinue.c.

Referenced by check(), and START_TEST().

◆ nRandBytes

unsigned int nRandBytes
static

Definition at line 22 of file NtContinue.c.

Referenced by initrand(), and randbytes().