diff options
Diffstat (limited to 'winsup/cygwin/dcrt0.cc')
| -rw-r--r-- | winsup/cygwin/dcrt0.cc | 154 |
1 files changed, 116 insertions, 38 deletions
diff --git a/winsup/cygwin/dcrt0.cc b/winsup/cygwin/dcrt0.cc index d5f15c593..c363d2e2f 100644 --- a/winsup/cygwin/dcrt0.cc +++ b/winsup/cygwin/dcrt0.cc @@ -309,9 +309,9 @@ globify (char *word, char **&argv, int &argc, int &argvlen) int n = 0; char *p, *s; - int dos_spec = isalpha(*word) && word[1] == ':' ? 1 : 0; + int dos_spec = isdrive (word); if (!dos_spec && isquote(*word) && word[1] && word[2]) - dos_spec = isalpha(word[1]) && word[2] == ':' ? 1 : 0; + dos_spec = isdrive (word + 1); /* We'll need more space if there are quoting characters in word. If that is the case, doubling the size of the @@ -653,7 +653,7 @@ dll_crt0_1 () /* Allow backup semantics. It's better done only once on process start instead of each time a file is opened. */ set_process_privileges (); - + /* Initialize SIGSEGV handling, etc... Because the exception handler references data in the shared area, this must be done after shared_init. */ @@ -987,31 +987,52 @@ __api_fatal (const char *fmt, ...) } extern "C" { -static void noload (HANDLE h, char *s) __asm__ ("noload"); -static void __attribute__((unused)) -noload (HANDLE h, char *s) + +/* This struct is unused, but it illustrates the layout of a DLL + information block. */ +struct DLLinfo { - api_fatal ("couldn't dynamically determine load address for '%s' (handle %p), %E", s, h); -} + char jmpinst[4]; + HANDLE h; + DWORD flag; + char name[0]; +}; /* FIXME: This is not thread-safe! */ __asm__ (" -.globl cygwin_dll_func_load +msg1: + .ascii \"couldn't dynamically determine load address for '%s' (handle %p), %E\\0\" + + .align 32 +noload: + popl %edx # Get the address of the information block + movl 8(%edx),%eax # Should we 'ignore' the lack + test $1,%eax # of this function? + jz 1f # Nope. + decl %eax # Yes. This is the # of bytes + 1 + popl %edx # Caller's caller + addl %eax,%esp # Pop off bytes + xor %eax,%eax # Zero functional return + jmp *%edx # Return +1: + movl 4(%edx),%eax # Handle value + pushl (%eax) + leal 12(%edx),%eax # Location of name of function + push %eax + push $msg1 # The message + call ___api_fatal # Print message. Never returns + + .globl cygwin_dll_func_load cygwin_dll_func_load: movl (%esp),%eax # 'Return address' contains load info - addl $8,%eax # Address of name of function to load + addl $12,%eax # Address of name of function to load pushl %eax # Second argument - movl -4(%eax),%eax # Address of Handle to DLL + movl -8(%eax),%eax # Address of Handle to DLL pushl (%eax) # Handle to DLL call _GetProcAddress@8# Load it test %eax,%eax # Success? jne gotit # Yes - popl %eax # No. Get back - addl $8,%eax # pointer to name - pushl %eax # and - movl -4(%eax),%eax # Address of Handle to DLL - pushl (%eax) # Handle to DLL - call noload # issue an error + jmp noload # Issue an error or return gotit: popl %ecx # Pointer to 'return address' movb $0xe0,-1(%ecx) # Turn preceding call to a jmp *%eax @@ -1033,24 +1054,81 @@ LoadDLLinitfunc (user32) } LoadDLLinit (user32) -LoadDLLfunc (CharToOemA, CharToOemA@8, user32) -LoadDLLfunc (CreateWindowExA, CreateWindowExA@48, user32) -LoadDLLfunc (DefWindowProcA, DefWindowProcA@16, user32) -LoadDLLfunc (DispatchMessageA, DispatchMessageA@4, user32) -LoadDLLfunc (FindWindowA, FindWindowA@8, user32) -LoadDLLfunc (GetMessageA, GetMessageA@16, user32) -LoadDLLfunc (GetProcessWindowStation, GetProcessWindowStation@0, user32) -LoadDLLfunc (GetThreadDesktop, GetThreadDesktop@4, user32) -LoadDLLfunc (GetUserObjectInformationA, GetUserObjectInformationA@20, user32) -LoadDLLfunc (KillTimer, KillTimer@8, user32) -LoadDLLfunc (MessageBoxA, MessageBoxA@16, user32) -LoadDLLfunc (MsgWaitForMultipleObjects, MsgWaitForMultipleObjects@20, user32) -LoadDLLfunc (OemToCharA, OemToCharA@8, user32) -LoadDLLfunc (OemToCharW, OemToCharW@8, user32) -LoadDLLfunc (PeekMessageA, PeekMessageA@20, user32) -LoadDLLfunc (PostMessageA, PostMessageA@16, user32) -LoadDLLfunc (PostQuitMessage, PostQuitMessage@4, user32) -LoadDLLfunc (RegisterClassA, RegisterClassA@4, user32) -LoadDLLfunc (SendMessageA, SendMessageA@16, user32) -LoadDLLfunc (SetTimer, SetTimer@16, user32) -LoadDLLfunc (SetUserObjectSecurity, SetUserObjectSecurity@12, user32) +LoadDLLfunc (CharToOemA, 8, user32) +LoadDLLfunc (CreateWindowExA, 48, user32) +LoadDLLfunc (DefWindowProcA, 16, user32) +LoadDLLfunc (DispatchMessageA, 4, user32) +LoadDLLfunc (FindWindowA, 8, user32) +LoadDLLfunc (GetMessageA, 16, user32) +LoadDLLfunc (GetProcessWindowStation, 0, user32) +LoadDLLfunc (GetThreadDesktop, 4, user32) +LoadDLLfunc (GetUserObjectInformationA, 20, user32) +LoadDLLfunc (KillTimer, 8, user32) +LoadDLLfunc (MessageBoxA, 16, user32) +LoadDLLfunc (MsgWaitForMultipleObjects, 20, user32) +LoadDLLfunc (OemToCharA, 8, user32) +LoadDLLfunc (OemToCharW, 8, user32) +LoadDLLfunc (PeekMessageA, 20, user32) +LoadDLLfunc (PostMessageA, 16, user32) +LoadDLLfunc (PostQuitMessage, 4, user32) +LoadDLLfunc (RegisterClassA, 4, user32) +LoadDLLfunc (SendMessageA, 16, user32) +LoadDLLfunc (SetTimer, 16, user32) +LoadDLLfunc (SetUserObjectSecurity, 12, user32) + +LoadDLLinitfunc (advapi32) +{ + HANDLE h; + + if ((h = LoadLibrary ("advapi32.dll")) != NULL) + advapi32_handle = h; + else if (!advapi32_handle) + api_fatal ("could not load advapi32.dll, %E"); + + return 0; /* Already done by another thread? */ +} + +LoadDLLinit (advapi32) +LoadDLLfunc (AddAccessAllowedAce, 16, advapi32) +LoadDLLfunc (AddAccessDeniedAce, 16, advapi32) +LoadDLLfunc (AddAce, 20, advapi32) +LoadDLLfunc (AdjustTokenPrivileges, 24, advapi32) +LoadDLLfunc (CopySid, 12, advapi32) +LoadDLLfunc (CreateProcessAsUserA, 44, advapi32) +LoadDLLfunc (CryptAcquireContextA, 20, advapi32) +LoadDLLfunc (CryptGenRandom, 12, advapi32) +LoadDLLfunc (CryptReleaseContext, 8, advapi32) +LoadDLLfunc (DeregisterEventSource, 4, advapi32) +LoadDLLfunc (EqualSid, 8, advapi32) +LoadDLLfunc (GetAce, 12, advapi32) +LoadDLLfunc (GetFileSecurityA, 20, advapi32) +LoadDLLfunc (GetLengthSid, 4, advapi32) +LoadDLLfunc (GetSecurityDescriptorDacl, 16, advapi32) +LoadDLLfunc (GetSecurityDescriptorGroup, 12, advapi32) +LoadDLLfunc (GetSecurityDescriptorOwner, 12, advapi32) +LoadDLLfunc (GetSidSubAuthority, 8, advapi32) +LoadDLLfunc (GetSidSubAuthorityCount, 4, advapi32) +LoadDLLfunc (GetTokenInformation, 20, advapi32) +LoadDLLfunc (GetUserNameA, 8, advapi32) +LoadDLLfunc (InitializeAcl, 12, advapi32) +LoadDLLfunc (InitializeSecurityDescriptor, 8, advapi32) +LoadDLLfunc (InitializeSid, 12, advapi32) +LoadDLLfunc (IsValidSid, 4, advapi32) +LoadDLLfunc (LookupAccountNameA, 28, advapi32) +LoadDLLfunc (LookupAccountSidA, 28, advapi32) +LoadDLLfunc (LookupPrivilegeValueA, 12, advapi32) +LoadDLLfunc (MakeSelfRelativeSD, 12, advapi32) +LoadDLLfunc (OpenProcessToken, 12, advapi32) +LoadDLLfunc (RegCloseKey, 4, advapi32) +LoadDLLfunc (RegCreateKeyExA, 36, advapi32) +LoadDLLfunc (RegDeleteKeyA, 8, advapi32) +LoadDLLfunc (RegEnumKeyExA, 32, advapi32) +LoadDLLfunc (RegOpenKeyExA, 20, advapi32) +LoadDLLfunc (RegQueryValueExA, 24, advapi32) +LoadDLLfunc (RegSetValueExA, 24, advapi32) +LoadDLLfunc (RegisterEventSourceA, 8, advapi32) +LoadDLLfunc (ReportEventA, 36, advapi32) +LoadDLLfunc (SetKernelObjectSecurity, 12, advapi32) +LoadDLLfunc (SetSecurityDescriptorDacl, 16, advapi32) +LoadDLLfunc (SetSecurityDescriptorGroup, 12, advapi32) +LoadDLLfunc (SetSecurityDescriptorOwner, 12, advapi32) |