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scrap-is-not-scrap
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eh, moving out of cloud9

master
Xyc0 2016-06-27 23:54:47 +00:00
parent 8ccbadf94b
commit 50533d793e
3 changed files with 115 additions and 100 deletions
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6
.clang-format
View File

@ -20,7 +20,7 @@ BreakBeforeTernaryOperators: true
BreakConstructorInitializersBeforeComma: false BreakConstructorInitializersBeforeComma: false
BinPackParameters: true BinPackParameters: true
BinPackArguments: true BinPackArguments: true
ColumnLimit: 80 ColumnLimit: 120
ConstructorInitializerAllOnOneLineOrOnePerLine: false ConstructorInitializerAllOnOneLineOrOnePerLine: false
ConstructorInitializerIndentWidth: 4 ConstructorInitializerIndentWidth: 4
DerivePointerAlignment: false DerivePointerAlignment: false
@ -31,7 +31,7 @@ IndentFunctionDeclarationAfterType: false
MaxEmptyLinesToKeep: 1 MaxEmptyLinesToKeep: 1
KeepEmptyLinesAtTheStartOfBlocks: true KeepEmptyLinesAtTheStartOfBlocks: true
NamespaceIndentation: None NamespaceIndentation: None
ObjCBlockIndentWidth: 4 ObjCBlockIndentWidth: 2
ObjCSpaceAfterProperty: false ObjCSpaceAfterProperty: false
ObjCSpaceBeforeProtocolList: true ObjCSpaceBeforeProtocolList: true
PenaltyBreakBeforeFirstCallParameter: 19 PenaltyBreakBeforeFirstCallParameter: 19
@ -45,7 +45,7 @@ SpacesBeforeTrailingComments: 1
Cpp11BracedListStyle: true Cpp11BracedListStyle: true
Standard: Cpp11 Standard: Cpp11
IndentWidth: 4 IndentWidth: 4
TabWidth: 8 TabWidth: 4
UseTab: Never UseTab: Never
BreakBeforeBraces: Allman BreakBeforeBraces: Allman
SpacesInParentheses: false SpacesInParentheses: false

202
sins.cpp
View File

@ -16,113 +16,129 @@
#define SHA_SUM_LENGTH (SHA_DIGEST_LENGTH + SHA_DIGEST_LENGTH + 1) #define SHA_SUM_LENGTH (SHA_DIGEST_LENGTH + SHA_DIGEST_LENGTH + 1)
void picProto(void *picAddr, size_t picSize, void *clonePtr) { void picProto(void *picAddr, size_t picSize, void *clonePtr)
void (*cloneFunc)(void *, size_t, char *) = clonePtr; {
cloneFunc(picAddr, picSize); void (*cloneFunc)(void *, size_t) = clonePtr;
return; cloneFunc(picAddr, picSize);
return;
} }
void clone(void *picAddr, size_t picSize, char *checksum) { void clone(void *picAddr, size_t picSize)
auto retVal = EX_SOFTWARE; {
auto retVal = EX_SOFTWARE;
struct drand48_data drand_data; struct drand48_data drand_data;
srand48_r(time(NULL), &drand_data); srand48_r(time(NULL), &drand_data);
long int randVal; long int randVal;
lrand48_r(&drand_data, &randVal); lrand48_r(&drand_data, &randVal);
unsigned int picOffset = (randVal % (picSize + 1)); unsigned int picOffset = (randVal % (picSize + 1));
unsigned char picFlip = ((char *)picAddr)[picOffset] & (randVal % 2); unsigned char picFlip = ((char *)picAddr)[picOffset] & (randVal % 2);
printf("%x\t%x\n", picOffset, picFlip); printf("%x\t%x\n", picOffset, picFlip);
((char *)picAddr)[picOffset] = picFlip; ((char *)picAddr)[picOffset] = picFlip;
unsigned char digest[SHA_DIGEST_LENGTH]; unsigned char digest[SHA_DIGEST_LENGTH];
SHA1(picAddr, picSize, digest); SHA1(picAddr, picSize, digest);
for (int iter = 0; iter < SHA_DIGEST_LENGTH; iter++) { for (int iter = 0; iter < SHA_DIGEST_LENGTH; iter++)
sprintf(&checksum[iter * 2], "%02x", digest[iter]); {
} sprintf(&checksum[iter * 2], "%02x", digest[iter]);
FILE *fileOutHandle = fopen(checksum, "w+");
if (NULL == fileOutHandle) {
retVal = errno;
goto CLONE_CLEANUP;
}
retVal = fwrite(picAddr, 1, picSize, fileOutHandle);
if (retVal != picSize) {
retVal = errno;
goto CLONE_CLEANUP;
}
retVal = EX_OK;
CLONE_CLEANUP:
if (fileOutHandle) {
fclose(fileOutHandle);
}
return;
}
int main(int argc, const char **argv) {
auto retVal = EX_SOFTWARE;
char fileInPath[SHA_SUM_LENGTH];
char checksum[SHA_SUM_LENGTH];
strncpy(fileInPath, argv[1], SHA_SUM_LENGTH);
while (1) {
FILE *fileInHandle = fopen(fileInPath, "rb");
if (NULL == fileInHandle) {
retVal = errno;
goto MAIN_CLEANUP;
} }
struct stat picStat; FILE *fileOutHandle = fopen(checksum, "w+");
retVal = fstat(fileno(fileInHandle), &picStat); if (NULL == fileOutHandle)
if (-1 == retVal) { {
retVal = errno; retVal = errno;
goto MAIN_CLEANUP; goto CLONE_CLEANUP;
} }
void *picBuffer = mmap(NULL, picStat.st_size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANON | MAP_PRIVATE, -1, 0); retVal = fwrite(picAddr, 1, picSize, fileOutHandle);
if (MAP_FAILED == picBuffer) { if (retVal != picSize)
retVal = errno; {
goto MAIN_CLEANUP; retVal = errno;
goto CLONE_CLEANUP;
} }
retVal = fread(picBuffer, 1, picStat.st_size, fileInHandle);
if (retVal != picStat.st_size) {
retVal = errno;
goto MAIN_CLEANUP;
}
if (NULL != fileInHandle) {
fclose(fileInHandle);
fileInHandle = NULL;
}
memset(checksum, 0, SHA_SUM_LENGTH);
void (*cloneFunc)(void *, size_t, char *) = clone;
void (*picFunc)(void *, size_t, void *, char *) = picBuffer;
signal(SIGSEGV, magic_handler);
picFunc(picBuffer, picStat.st_size, cloneFunc, checksum);
strncpy(fileInPath, checksum, SHA_SUM_LENGTH);
retVal = EX_OK; retVal = EX_OK;
MAIN_CLEANUP: CLONE_CLEANUP:
if (NULL != picBuffer) { if (fileOutHandle)
munmap(picBuffer, picStat.st_size); {
fclose(fileOutHandle);
} }
if (NULL != fileInHandle) { return;
fclose(fileInHandle);
fileInHandle = NULL;
}
}
return retVal;
} }
int main(int argc, const char **argv)
{
auto retVal = EX_SOFTWARE;
char fileInPath[SHA_SUM_LENGTH];
char checksum[SHA_SUM_LENGTH];
FILE *fileInHandle = NULL;
struct stat picStat;
void *picBuffer = NULL;
strncpy(fileInPath, argv[1], SHA_SUM_LENGTH);
while (1)
{
fileInHandle = fopen(fileInPath, "rb");
if (NULL == fileInHandle)
{
retVal = errno;
goto MAIN_CLEANUP;
}
retVal = fstat(fileno(fileInHandle), &picStat);
if (-1 == retVal)
{
retVal = errno;
goto MAIN_CLEANUP;
}
auto mmapFlags = (PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANON | MAP_PRIVATE);
picBuffer = mmap(NULL, picStat.st_size, mmapFlags, -1, 0);
if (MAP_FAILED == picBuffer)
{
retVal = errno;
goto MAIN_CLEANUP;
}
retVal = fread(picBuffer, 1, picStat.st_size, fileInHandle);
if (retVal != picStat.st_size)
{
retVal = errno;
goto MAIN_CLEANUP;
}
if (NULL != fileInHandle)
{
fclose(fileInHandle);
fileInHandle = NULL;
}
memset(checksum, 0, SHA_SUM_LENGTH);
void (*cloneFunc)(void *, size_t) = clone;
void (*picFunc)(void *, size_t, void *) = picBuffer;
picFunc(picBuffer, picStat.st_size, cloneFunc);
strncpy(fileInPath, checksum, SHA_SUM_LENGTH);
}
retVal = EX_OK;
MAIN_CLEANUP:
if (NULL != picBuffer)
{
munmap(picBuffer, picStat.st_size);
}
if (NULL != fileInHandle)
{
fclose(fileInHandle);
fileInHandle = NULL;
}
return retVal;
}

7
wscript
View File

@ -3,13 +3,12 @@
def options(opt): def options(opt):
opt.load('nasm') opt.load('nasm')
opt.load('compiler_c') opt.load('compiler_cxx')
def configure(conf): def configure(conf):
conf.load('nasm') conf.load('nasm')
conf.load('compiler_c') conf.load('compiler_cxx')
def build(bld): def build(bld):
bld.program(source='pic-linux.c', target='pic-linux', cflags='-g') bld.program(source='sins.cpp', target='sins', cflags='-g')
bld.program(source='sins.c', target='sins', cflags='-g')
bld(features='asm', source='scrap.asm', target='scrap') bld(features='asm', source='scrap.asm', target='scrap')