Log CreateFile calls
Since I've hooked CreateFile use log level 32 to log how it's used, providing a simple file monitor.
This commit is contained in:
Jason Hood
parent
4e84582f02
commit
06459edb69
82
ANSI.c
82
ANSI.c
@ -210,9 +210,10 @@
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scrolling will use the default attribute for new lines;
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workaround Windows 10 1803 console bug.
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v1.85, 22 August, 2018:
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v1.85, 22 & 23 August, 2018:
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fix creating the wrap buffer;
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always inject from ansicon.exe, even if it's GUI or excluded.
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always inject from ansicon.exe, even if it's GUI or excluded;
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log CreateFile calls.
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*/
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#include "ansicon.h"
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@ -3614,6 +3615,55 @@ WINAPI MyFreeLibrary( HMODULE hModule )
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// Add GENERIC_READ access to enable retrieving console info.
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//-----------------------------------------------------------------------------
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static void log_CreateFile( HANDLE h, LPCVOID name, BOOL wide, DWORD access,
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DWORD dwDesiredAccess, DWORD dwCreationDisposition )
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{
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DWORD err = GetLastError();
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static char log[] = "CreateFile%s: %*s, %s, %s, %\"s";
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LPCSTR acc, op;
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char state[32];
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int len;
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if (access != dwDesiredAccess)
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acc = "w->r/w";
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else if (access == (GENERIC_READ | GENERIC_WRITE) ||
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(access & (FILE_READ_DATA | FILE_WRITE_DATA)) == (FILE_READ_DATA |
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FILE_WRITE_DATA))
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acc = "r/w";
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else if (access == GENERIC_WRITE ||
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access & (FILE_WRITE_DATA | FILE_APPEND_DATA))
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acc = "write";
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else if (access == GENERIC_READ ||
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access & FILE_READ_DATA)
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acc = "read";
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else
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acc = "access";
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switch (dwCreationDisposition)
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{
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case CREATE_ALWAYS: op = "create"; break;
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case CREATE_NEW: op = "new"; break;
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case OPEN_ALWAYS: op = "open"; break;
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case OPEN_EXISTING: op = "existing"; break;
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case TRUNCATE_EXISTING: op = "truncate"; break;
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default: op = "unknown"; break;
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}
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if (h == INVALID_HANDLE_VALUE)
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len = ac_sprintf( state, "failed (%u)", err );
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else
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{
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state[0] = 'o';
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state[1] = 'k';
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len = 2;
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}
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log[sizeof(log) - 2] = wide ? 'S' : 's';
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DEBUGSTR( 1, log, wide ? "W" : "A", len, state, op, acc, name );
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SetLastError( err );
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}
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HANDLE
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WINAPI MyCreateFileA( LPCSTR lpFileName, DWORD dwDesiredAccess,
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DWORD dwShareMode,
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@ -3621,6 +3671,10 @@ WINAPI MyCreateFileA( LPCSTR lpFileName, DWORD dwDesiredAccess,
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DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes,
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HANDLE hTemplateFile )
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{
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LPCSTR name = lpFileName;
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DWORD access = dwDesiredAccess;
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HANDLE h;
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if (dwDesiredAccess == GENERIC_WRITE)
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{
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PDWORD con = (PDWORD)lpFileName;
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@ -3631,9 +3685,13 @@ WINAPI MyCreateFileA( LPCSTR lpFileName, DWORD dwDesiredAccess,
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dwDesiredAccess |= GENERIC_READ;
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}
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}
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return CreateFileA( lpFileName, dwDesiredAccess, dwShareMode,
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lpSecurityAttributes, dwCreationDisposition,
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dwFlagsAndAttributes, hTemplateFile );
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h = CreateFileA( lpFileName, dwDesiredAccess, dwShareMode,
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lpSecurityAttributes, dwCreationDisposition,
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dwFlagsAndAttributes, hTemplateFile );
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if (log_level & 32)
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log_CreateFile( h, name, FALSE, access,
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dwDesiredAccess, dwCreationDisposition );
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return h;
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}
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HANDLE
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@ -3643,6 +3701,10 @@ WINAPI MyCreateFileW( LPCWSTR lpFileName, DWORD dwDesiredAccess,
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DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes,
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HANDLE hTemplateFile )
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{
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LPCWSTR name = lpFileName;
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DWORD access = dwDesiredAccess;
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HANDLE h;
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if (dwDesiredAccess == GENERIC_WRITE)
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{
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#ifdef _WIN64
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@ -3662,9 +3724,13 @@ WINAPI MyCreateFileW( LPCWSTR lpFileName, DWORD dwDesiredAccess,
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dwDesiredAccess |= GENERIC_READ;
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}
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}
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return CreateFileW( lpFileName, dwDesiredAccess, dwShareMode,
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lpSecurityAttributes, dwCreationDisposition,
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dwFlagsAndAttributes, hTemplateFile );
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h = CreateFileW( lpFileName, dwDesiredAccess, dwShareMode,
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lpSecurityAttributes, dwCreationDisposition,
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dwFlagsAndAttributes, hTemplateFile );
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if (log_level & 32)
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log_CreateFile( h, name, TRUE, access,
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dwDesiredAccess, dwCreationDisposition );
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return h;
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}
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HANDLE
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23
ansicon.c
23
ansicon.c
@ -93,12 +93,13 @@
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v1.84, 7 May, 2018:
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import the DLL.
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v1.85, 22 August, 2018:
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v1.85, 22 & 23 August, 2018:
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use IsConsoleHandle for my_fputws, to distinguish NUL;
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don't load into the parent if already loaded.
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don't load into the parent if already loaded;
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add log level 32 to log CreateFile.
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*/
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#define PDATE L"22 August, 2018"
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#define PDATE L"23 August, 2018"
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#include "ansicon.h"
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#include "version.h"
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@ -870,25 +871,25 @@ L"http://ansicon.adoxa.vze.com/\n"
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L"\n"
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L"Process ANSI escape sequences in " WINTYPE L" console programs.\n"
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L"\n"
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L"ansicon [-l<level>] [-i] [-I] [-u] [-U] [-m[<attr>]] [-p[u]]\n"
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L" [-e|E string | -t|T [file(s)] | program [args]]\n"
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L"ansicon [-lLEVEL] [-i] [-I] [-u] [-U] [-m[ATTR]] [-p[u]]\n"
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L" [-e|E STRING | -t|T [FILE...] | PROGRAM [ARGS]]\n"
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L"\n"
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L" -l\t\tset the logging level (1=process, 2=module, 3=function,\n"
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L" \t\t +4=output, +8=append) for program (-p is unaffected)\n"
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L" \t\t +4=output, +8=append, +16=imports, +32=files) for PROGRAM\n"
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L" -i\t\tinstall - add ANSICON to CMD's AutoRun entry (also implies -p)\n"
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L" -u\t\tuninstall - remove ANSICON from the AutoRun entry\n"
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L" -I -U\t\tuse local machine instead of current user\n"
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L" -m\t\tuse grey on black (\"monochrome\") or <attr> as default color\n"
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L" -m\t\tuse grey on black (\"monochrome\") or ATTR as default color\n"
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L" -p\t\thook into the parent process\n"
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L" -pu\t\tunhook from the parent process\n"
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L" -e\t\techo string\n"
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L" -E\t\techo string, don't append newline\n"
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L" -e\t\techo STRING\n"
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L" -E\t\techo STRING, don't append newline\n"
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L" -t\t\tdisplay files (\"-\" for stdin), combined as a single stream\n"
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L" -T\t\tdisplay files, name first, blank line before and after\n"
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L" program\trun the specified program\n"
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L" PROGRAM\trun the specified program\n"
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L" nothing\trun a new command processor, or display stdin if redirected\n"
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L"\n"
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L"<attr> is one or two hexadecimal digits; please use \"COLOR /?\" for details.\n"
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L"ATTR is one or two hexadecimal digits; please use \"COLOR /?\" for details.\n"
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L"It may start with '-' to reverse foreground and background (but not for -p)."
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);
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}
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@ -102,6 +102,7 @@ Usage
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4 Log console output (add to any of the above)
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8 Append to the existing file (add to any of the above)
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16 Log all imported modules (add to any of the above)
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32 Log CreateFile (add to any of the above)
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The log option will not work with '-p'; set the environment variable
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ANSICON_LOG (to the number) instead. The variable is only read once when a
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@ -339,11 +340,12 @@ Version History
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Legend: + added, - bug-fixed, * changed.
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1.85 - 22 August, 2018:
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1.85 - 23 August, 2018:
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- fix wrap issues with a buffer bigger than the window;
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- fix -e et al when redirecting to NUL;
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- prevent -p from injecting when already injected;
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- fix running directly via ansicon (hook even if it's GUI or excluded).
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- fix running directly via ansicon (hook even if it's GUI or excluded);
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+ add log level 32 to monitor CreateFile.
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1.84 - 11 May, 2018:
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- close the flush handles on detach;
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@ -634,4 +636,4 @@ Distribution
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============================
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Jason Hood, 22 August, 2018.
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Jason Hood, 23 August, 2018.
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