18 Commits

Author SHA1 Message Date
Jason Hood
6a9039b051 Update for gcc
Update makefile.gcc to reflect the new compilation process.
2018-05-11 21:52:02 +10:00
Jason Hood
33ba31ad3c Remove dependence on the CRT; import DLL; fixes
Windows 10's MSVCRT will only work if the Win32 version in the header is
0 or 10.  Some PE's use it for something else, so when the DLL is
injected the process fails.  Provide custom routines for the C functions
used, so the DLL only depends on KERNEL32.

With the DLL independent of the CRT that would mean the exe would either
also need to be independent, or the source files would need to be built
twice (or just remove a linker warning).  Another option is to export
the functions from the DLL and have the exe import them, which turned
out to simplify things quite nicely.

A process that has a really long command line would not log properly, so
double the heap to accommodate it.

If ANSICON_DEF could not be parsed the default attribute would be zero
(black on black).  Use 7 or -7 instead.
2018-05-08 12:21:28 +10:00
Jason Hood
f8509c916c Inject by remote load if there's no IAT on Win8+
Windows 8 and later require the IDT to be within a section when there's
no IAT.  This prevents relocated imports from working, so we cannot add
ourself to the import table.  Use `LdrLoadDll` via `CreateRemoteThread`
for such a situation.
2018-05-04 11:45:10 +10:00
Jason Hood
a4125753a4 Fix compiling with MinGW and TDM
MinGW lacks some definitions; TDM wants WINVER defined.

Assume a default `CC=cc` should really be `CC=gcc`.
2017-11-21 11:46:58 +10:00
Jason Hood
40f59c543c Many changes, bad programmer!
Just copying the history from the source:

recognize the standard handle defines in WriteFile;
minor speed improvement by caching GetConsoleMode;
keep track of three handles (ostensibly stdout, stderr and a file);
test a DOS header exists before writing to e_oemid;
more flexible/robust handling of data directories;
files writing to the console will always succeed;
log: use API file functions and a custom printf;
     add a blank line between processes;
     set function name for MyWriteConsoleA;
scan imports from "kernel32" (without extension);
added dynamic environment variable CLICOLOR;
removed _hwrite (it's the same address as _lwrite);
join multibyte characters split across separate writes;
remove wcstok, avoiding potential interference with the host;
similarly, use a private heap instead of malloc.
2017-07-25 18:18:34 +10:00
Jason Hood
6da33b2af0 Attributes and saved position are local to each console window. 2014-02-08 18:30:53 +10:00
Jason Hood
db36552c42 Work with 64-bit AnyCPU; copy original IDT to IAT; log improvements. 2014-02-08 01:10:51 +10:00
Jason Hood
dc7569dc26 Inject by adding to the Import Directory Table.
-p uses CreateRemoteThread, determining kernel32.dll & LLW dynamically.
Loading via LoadLibrary will remember the current attributes, restoring them on
unload.
Tweaked log output (remove quotes around CreateProcess command line; add an
underscore to 64-bit addresses).
ansicon.exe will really output (to the console) strings as Unicode.
Fixed ansicon.exe, if installed, restoring the default attributes, not current.
ansicon.exe will start with ANSICON_DEF (if defined and -m not used).
2014-02-05 00:21:42 +10:00
Jason Hood
bccf933c0a Always find the base address of kernel32.dll. 2014-01-27 14:03:53 +10:00
Jason Hood
b2c8a9ec12 LoadLibrary hooking improvements.
Don't hook ourself from LoadLibrary or LoadLibraryEx.
Test additional LoadLibraryEx flags before deciding to hook.
2014-01-25 23:43:41 +10:00
Jason Hood
a52a46c9c1 New method to obtain 32-bit LoadLibraryW from 64-bit code, eliminating the need
for ANSI-LLW.exe.
Set the code page so ansicon.exe can display some strings properly.
Expand wildcards for -t.
VC6 can now compile the 32-bit version; use it for the release binaries.
Improvements to the VC makefile.
Describe the sequences in a bit more detail.
2012-11-24 23:41:29 +10:00
Jason Hood
790de57763 Exclude modules from being hooked; hook only selected GUI programs.
Added environment variable ANSICON_EXC to specify modules that should not be
hooked.  This should work around the nvd3d9wrap.dll issue.  Since it helps to
know what the modules are, logging is now always available, controlled by -l
or ANSICON_LOG.  A side-effect caused debugstr.c to move to util.c.

GUI programs are once again not hooked, unless run by "ansicon" directly or in
the ANSICON_GUI environment variable.  Since not hooking still leaves ANSICON in
the environment, created ANSICON_VER as a dynamic-only variable, which can also
serve as a version check.

Due to an email requesting a reverse video option, realised I always take the
current attributes as default.	This means if you turned on reverse and ran a
program, it would take the reverse as its default.  Created ANSICON_DEF variable
to explicitly set the default attribute, using the current if it doesn't exist.
The reverse video option is done via a "negative" attribute (e.g. "-m-f0" is
reversed black on white, meaning you'll get white on black, with foreground
sequences changing the background).  (The difference from "\e[7m" is that it
won't be reset on "\e[m".)

A child program will inherit the parent's modes (but not shift); the parent will
read the child's modes on exit (but not unload).  The exception is "ansicon",
which will always start with the default modes and leave the parent unchanged.

Improved the AutoRun entry, only running "ansicon" if ANSICON_VER doesn't exist.
The "ansicon" command is always first.

Stopped -u implying -p; return the program's exit code; don't restore the
original color when just using -p; output error messages to stderr.
2011-12-14 20:53:51 +10:00
Jason Hood
b6e61429d7 Added DECTCEM to show/hide the cursor. 2011-03-01 21:01:37 +10:00
Jason Hood
6d7cd9212c Hook GetProcAddress (.NET support for PowerShell) 2011-02-26 01:12:35 +10:00
Jason Hood
1b3511ac1f Fixed x64 and MinGW32 crashes. 2010-12-22 18:47:45 +10:00
Jason Hood
be7672b92e Close the handles opened by CreateProcess.
Prevent the block when directly running a GUI process.
File logging improvements (on by default, this time).
2010-12-16 16:00:56 +10:00
Jason Hood
dd4e45686b General maintenance. 2010-12-12 23:32:22 +10:00
Jason Hood
b9d2207742 Improvements 2010-12-12 21:58:35 +10:00