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- removed fixrtext tool.

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This is no longer needed, because it was used to create self-modifiable code from assembly source, which no longer exists.
This commit is contained in:
Christoph Oelckers 2019-07-14 15:10:37 +02:00
parent ed6ab39b2d
commit 46ec16032e
3 changed files with 0 additions and 98 deletions
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4
tools/CMakeLists.txt
View file

@ -1,10 +1,6 @@
cmake_minimum_required( VERSION 2.8.7 ) cmake_minimum_required( VERSION 2.8.7 )
add_subdirectory( lemon ) add_subdirectory( lemon )
add_subdirectory( re2c )
if( WIN32 AND NOT CMAKE_SIZEOF_VOID_P MATCHES "8" )
add_subdirectory( fixrtext )
endif()
add_subdirectory( updaterevision ) add_subdirectory( updaterevision )
add_subdirectory( zipdir ) add_subdirectory( zipdir )

6
tools/fixrtext/CMakeLists.txt
View file

@ -1,6 +0,0 @@
cmake_minimum_required( VERSION 2.8.7 )
if( NOT CMAKE_CROSSCOMPILING )
add_executable( fixrtext fixrtext.c )
set( CROSS_EXPORTS ${CROSS_EXPORTS} fixrtext PARENT_SCOPE )
endif()

88
tools/fixrtext/fixrtext.c
View file

@ -1,88 +0,0 @@
/* fixrtext.c
**
** Given a coff-win32 object file, search for an .rtext section header and
** set its IMAGE_SCN_MEM_WRITE flag if it isn't already set. This gets
** around an NASM deficiency that prevents creating such files with
** "execute read write" sections.
**
** The author of this program disclaims copyright.
*/
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <stdio.h>
#ifndef _MSC_VER
#include <errno.h>
int fopen_s (FILE **pFile, const char *filename, const char *mode)
{
if ((*pFile = fopen (filename, mode)) == NULL)
{
return errno;
}
return 0;
}
#endif
int main (int argc, char **argv)
{
FILE *f;
IMAGE_FILE_HEADER filehead;
IMAGE_SECTION_HEADER secthead;
int i;
if (argc != 2)
return 1;
if (fopen_s (&f, argv[1], "r+b"))
{
fprintf (stderr, "Could not open %s\n", argv[1]);
return 1;
}
if (fread (&filehead, sizeof filehead, 1, f) != 1 ||
filehead.Machine != IMAGE_FILE_MACHINE_I386)
{
fprintf (stderr, "%s is not an x86 object file\n", argv[1]);
fclose (f);
return 1;
}
for (i = 0; i < filehead.NumberOfSections; ++i)
{
if (fread (&secthead, sizeof secthead, 1, f) != 1)
{
fprintf (stderr, "Could not read section header %d\n", i + 1);
fclose (f);
return 1;
}
if (memcmp (secthead.Name, ".rtext\0", IMAGE_SIZEOF_SHORT_NAME) == 0)
{
if (secthead.Characteristics & IMAGE_SCN_MEM_WRITE)
{
fprintf (stderr, "The .rtext section in %s is already writeable\n", argv[1]);
fclose (f);
return 0;
}
secthead.Characteristics |= IMAGE_SCN_MEM_WRITE;
if (fseek (f, -(long)sizeof secthead, SEEK_CUR))
{
fprintf (stderr, "Failed to seek back to start of .rtext section header\n");
fclose (f);
return 1;
}
if (fwrite (&secthead, sizeof secthead, 1, f) != 1)
{
fprintf (stderr, "Failed to rewrite .rtext section header\n");
fclose (f);
return 1;
}
/* fprintf (stderr, "The .rtext section in %s was successfully made writeable\n", argv[1]); */
fclose (f);
return 0;
}
}
fclose (f);
return 0;
}