ReactOS 0.4.15-dev-5666-gc548b97
pesect.c
Go to the documentation of this file.
1
7//#include <windows.h>
8#include <stdarg.h>
9#include <windef.h>
10#include <winbase.h>
11#include <string.h>
12
13#if defined (_WIN64) && defined (__ia64__)
14#error FIXME: Unsupported __ImageBase implementation.
15#else
16#ifdef __GNUC__
17/* Hack, for bug in ld. Will be removed soon. */
18#define __ImageBase __MINGW_LSYMBOL(_image_base__)
19#endif
20/* This symbol is defined by the linker. */
22#endif
23
25
28{
29 PIMAGE_DOS_HEADER pDOSHeader;
30 PIMAGE_NT_HEADERS pNTHeader;
31 PIMAGE_OPTIONAL_HEADER pOptHeader;
32
33 pDOSHeader = (PIMAGE_DOS_HEADER) pImageBase;
34 if (pDOSHeader->e_magic != IMAGE_DOS_SIGNATURE)
35 return FALSE;
36 pNTHeader = (PIMAGE_NT_HEADERS) ((PBYTE) pDOSHeader + pDOSHeader->e_lfanew);
37 if (pNTHeader->Signature != IMAGE_NT_SIGNATURE)
38 return FALSE;
39 pOptHeader = (PIMAGE_OPTIONAL_HEADER) &pNTHeader->OptionalHeader;
40 if (pOptHeader->Magic != IMAGE_NT_OPTIONAL_HDR_MAGIC)
41 return FALSE;
42 return TRUE;
43}
44
46
49{
50 PIMAGE_NT_HEADERS pNTHeader;
51 PIMAGE_SECTION_HEADER pSection;
52 unsigned int iSection;
53
54 pNTHeader = (PIMAGE_NT_HEADERS) (pImageBase + ((PIMAGE_DOS_HEADER) pImageBase)->e_lfanew);
55
56 for (iSection = 0, pSection = IMAGE_FIRST_SECTION (pNTHeader);
57 iSection < pNTHeader->FileHeader.NumberOfSections;
58 ++iSection,++pSection)
59 {
60 if (rva >= pSection->VirtualAddress
61 && rva < pSection->VirtualAddress + pSection->Misc.VirtualSize)
62 return pSection;
63 }
64 return NULL;
65}
66
68
71{
72 PBYTE pImageBase;
73 PIMAGE_NT_HEADERS pNTHeader;
74 PIMAGE_SECTION_HEADER pSection;
75 unsigned int iSection;
76
77 /* Long names aren't supported. */
79 return NULL;
80
81 pImageBase = (PBYTE) &__ImageBase;
82 if (! _ValidateImageBase (pImageBase))
83 return NULL;
84
85 pNTHeader = (PIMAGE_NT_HEADERS) (pImageBase + ((PIMAGE_DOS_HEADER) pImageBase)->e_lfanew);
86
87 for (iSection = 0, pSection = IMAGE_FIRST_SECTION (pNTHeader);
88 iSection < pNTHeader->FileHeader.NumberOfSections;
89 ++iSection,++pSection)
90 {
91 if (!strncmp ((char *) &pSection->Name[0], pName, IMAGE_SIZEOF_SHORT_NAME))
92 return pSection;
93 }
94 return NULL;
95}
96
99
102{
103 PBYTE pImageBase;
104 DWORD_PTR rva;
105
106 pImageBase = (PBYTE) &__ImageBase;
107 if (! _ValidateImageBase (pImageBase))
108 return NULL;
109
110 rva = (DWORD_PTR) (((PBYTE) p) - pImageBase);
111 return _FindPESection (pImageBase, rva);
112}
113
114int
116{
117 PBYTE pImageBase;
118 PIMAGE_NT_HEADERS pNTHeader;
119
120 pImageBase = (PBYTE) &__ImageBase;
121 if (! _ValidateImageBase (pImageBase))
122 return 0;
123
124 pNTHeader = (PIMAGE_NT_HEADERS) (pImageBase + ((PIMAGE_DOS_HEADER) pImageBase)->e_lfanew);
125
126 return (int) pNTHeader->FileHeader.NumberOfSections;
127}
128
129
131
134{
135 PBYTE pImageBase;
136 PIMAGE_NT_HEADERS pNTHeader;
137 PIMAGE_SECTION_HEADER pSection;
138 unsigned int iSection;
139
140 pImageBase = (PBYTE) &__ImageBase;
141 if (! _ValidateImageBase (pImageBase))
142 return NULL;
143
144 pNTHeader = (PIMAGE_NT_HEADERS) (pImageBase + ((PIMAGE_DOS_HEADER) pImageBase)->e_lfanew);
145
146 for (iSection = 0, pSection = IMAGE_FIRST_SECTION (pNTHeader);
147 iSection < pNTHeader->FileHeader.NumberOfSections;
148 ++iSection,++pSection)
149 {
150 if ((pSection->Characteristics & IMAGE_SCN_MEM_EXECUTE) != 0)
151 {
152 if (!eNo)
153 return pSection;
154 --eNo;
155 }
156 }
157 return NULL;
158}
159
161
162PBYTE
164{
165 PBYTE pImageBase;
166 pImageBase = (PBYTE) &__ImageBase;
167 if (! _ValidateImageBase (pImageBase))
168 return NULL;
169 return pImageBase;
170}
171
173
176{
177 PBYTE pImageBase;
178 DWORD_PTR rvaTarget;
179 PIMAGE_SECTION_HEADER pSection;
180
181 pImageBase = (PBYTE) &__ImageBase;
182 if (! _ValidateImageBase (pImageBase))
183 return FALSE;
184 rvaTarget = pTarget - pImageBase;
185 pSection = _FindPESection (pImageBase, rvaTarget);
186 if (pSection == NULL)
187 return FALSE;
188 return (pSection->Characteristics & IMAGE_SCN_MEM_WRITE) == 0;
189}
190
191const char *
193
194const char *
196{
197 PBYTE pImageBase;
198 PIMAGE_NT_HEADERS pNTHeader;
199 PIMAGE_IMPORT_DESCRIPTOR importDesc;
200 PIMAGE_SECTION_HEADER pSection;
201 DWORD importsStartRVA;
202
203 pImageBase = (PBYTE) &__ImageBase;
204 if (! _ValidateImageBase (pImageBase))
205 return NULL;
206
207 pNTHeader = (PIMAGE_NT_HEADERS) (pImageBase + ((PIMAGE_DOS_HEADER) pImageBase)->e_lfanew);
208
210 if (!importsStartRVA)
211 return NULL;
212
213 pSection = _FindPESection (pImageBase, importsStartRVA);
214 if (!pSection)
215 return NULL;
216
217 importDesc = (PIMAGE_IMPORT_DESCRIPTOR) (pImageBase + importsStartRVA);
218 if (!importDesc)
219 return NULL;
220
221 for (;;)
222 {
223 if (importDesc->TimeDateStamp == 0 && importDesc->Name == 0)
224 break;
225
226 if (i <= 0)
227 return (char *) (pImageBase + importDesc->Name);
228 --i;
229 importDesc++;
230 }
231
232 return NULL;
233}
234
237{
238 static HANDLE msvcrt_handle;
239
240 if(!msvcrt_handle) {
241 const char *lib_name;
242 int i = 0;
243
244 while ((lib_name = __mingw_enum_import_library_names (i++))) {
245 if((lib_name[0] == 'm' || lib_name[0] == 'M')
246 && (lib_name[1] == 's' || lib_name[1] == 'S')
247 && (lib_name[2] == 'v' || lib_name[2] == 'V')
248 && (lib_name[3] == 'c' || lib_name[3] == 'C')
249 && (lib_name[4] == 'r' || lib_name[4] == 'R')
250 && (lib_name[5] == 't' || lib_name[5] == 'T' || ('0' <= lib_name[5] && lib_name[5] <= '9')))
251 break;
252 }
253
254 if(lib_name)
255 msvcrt_handle = GetModuleHandleA(lib_name);
256 if(!msvcrt_handle)
257 msvcrt_handle = LoadLibraryW(L"msvcrt.dll");
258 }
259
260 return msvcrt_handle;
261}
ACPI_SIZE strlen(const char *String)
Definition: utclib.c:269
int strncmp(const char *String1, const char *String2, ACPI_SIZE Count)
Definition: utclib.c:534
#define NULL
Definition: types.h:112
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
@ eNo
Definition: precomp.h:73
#define LoadLibraryW(x)
Definition: compat.h:747
HMODULE WINAPI DECLSPEC_HOTPATCH GetModuleHandleA(LPCSTR lpModuleName)
Definition: loader.c:812
unsigned long DWORD
Definition: ntddk_ex.h:95
PIMAGE_NT_HEADERS32 PIMAGE_NT_HEADERS
Definition: ntddk_ex.h:187
struct _IMAGE_DOS_HEADER * PIMAGE_DOS_HEADER
FxIoTarget * pTarget
Definition: fxdeviceapi.cpp:97
GLfloat GLfloat p
Definition: glext.h:8902
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
if(dx< 0)
Definition: linetemp.h:194
static LPSTR pName
Definition: security.c:75
DWORD e_lfanew
Definition: crypt.c:1156
#define IMAGE_SCN_MEM_WRITE
Definition: ntimage.h:241
struct _IMAGE_IMPORT_DESCRIPTOR * PIMAGE_IMPORT_DESCRIPTOR
#define IMAGE_SCN_MEM_EXECUTE
Definition: ntimage.h:239
#define IMAGE_FIRST_SECTION(NtHeader)
Definition: ntimage.h:427
#define IMAGE_NT_OPTIONAL_HDR_MAGIC
Definition: ntimage.h:387
#define L(x)
Definition: ntvdm.h:50
#define IMAGE_DIRECTORY_ENTRY_IMPORT
Definition: pedump.c:260
BYTE * PBYTE
Definition: pedump.c:66
#define IMAGE_NT_SIGNATURE
Definition: pedump.c:93
struct _IMAGE_OPTIONAL_HEADER * PIMAGE_OPTIONAL_HEADER
#define IMAGE_SIZEOF_SHORT_NAME
Definition: pedump.c:277
#define IMAGE_DOS_SIGNATURE
Definition: pedump.c:89
WINBOOL _ValidateImageBase(PBYTE)
Definition: pesect.c:27
PIMAGE_SECTION_HEADER _FindPESectionByName(const char *)
Definition: pesect.c:70
PIMAGE_SECTION_HEADER __mingw_GetSectionForAddress(LPVOID p)
Definition: pesect.c:101
const char * __mingw_enum_import_library_names(int)
Definition: pesect.c:195
int __mingw_GetSectionCount(void)
Definition: pesect.c:115
PIMAGE_SECTION_HEADER _FindPESection(PBYTE, DWORD_PTR)
Definition: pesect.c:48
IMAGE_DOS_HEADER __ImageBase
PIMAGE_SECTION_HEADER _FindPESectionExec(size_t)
Definition: pesect.c:133
PBYTE _GetPEImageBase(void)
Definition: pesect.c:163
HMODULE __mingw_get_msvcrt_handle(void)
Definition: pesect.c:236
WINBOOL _IsNonwritableInCurrentImage(PBYTE)
Definition: pesect.c:175
IMAGE_OPTIONAL_HEADER32 OptionalHeader
Definition: ntddk_ex.h:184
IMAGE_FILE_HEADER FileHeader
Definition: ntddk_ex.h:183
IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES]
Definition: ntddk_ex.h:178
union _IMAGE_SECTION_HEADER::@1538 Misc
BYTE Name[IMAGE_SIZEOF_SHORT_NAME]
Definition: pedump.c:281
#define DWORD_PTR
Definition: treelist.c:76
int32_t WINBOOL
Definition: typedefs.h:58
uint32_t DWORD_PTR
Definition: typedefs.h:65
_Must_inspect_result_ _In_ WDFDMATRANSACTION _In_ PFN_WDF_PROGRAM_DMA _In_ WDF_DMA_DIRECTION _In_ PMDL _In_ PVOID VirtualAddress