void randomizeBuffer(byte_t * buf, uint_t len) {
uint_t i;
for (i = 0; i < len; ++i) {
buf[i] = getRandomByte();
}
}
LOCAL bool parseDefinition(const char *s, Definition *definition, uint64 maxPosition)
{
StringTokenizer stringTokenizer;
String t;
String w;
uint length;
char buffer[1024];
assert(definition != NULL);
t = String_newCString(s);
String_initTokenizer(&stringTokenizer,t,STRING_BEGIN,":",NULL,FALSE);
/* get type */
if (String_getNextToken(&stringTokenizer,&w,NULL))
{
if (String_equalsCString(w,"m")) definition->type = DEFINITION_TYPE_MODIFY;
else if (String_equalsCString(w,"r")) definition->type = DEFINITION_TYPE_RANDOMIZE;
else if (String_equalsCString(w,"i")) definition->type = DEFINITION_TYPE_INSERT;
else if (String_equalsCString(w,"d")) definition->type = DEFINITION_TYPE_DELETE;
else
{
String_doneTokenizer(&stringTokenizer);
String_delete(t);
fprintf(stderr,"ERROR: Invalid definition '%s': expected m,i,d!\n",s);
return FALSE;
}
}
else
{
String_doneTokenizer(&stringTokenizer);
String_delete(t);
fprintf(stderr,"ERROR: Invalid definition '%s'!\n",s);
return FALSE;
}
/* get position */
if (String_getNextToken(&stringTokenizer,&w,NULL))
{
if (!String_scan(w,STRING_BEGIN,"%llu",&definition->position))
{
String_doneTokenizer(&stringTokenizer);
String_delete(t);
fprintf(stderr,"ERROR: Invalid position in definition '%s'!\n",s);
return FALSE;
}
}
else
{
definition->position = getRandomInteger64(maxPosition);
}
/* get value/length */
if (String_getNextToken(&stringTokenizer,&w,NULL))
{
switch (definition->type)
{
case DEFINITION_TYPE_MODIFY:
definition->value = String_new();
if (!String_scan(w,STRING_BEGIN,"%S",definition->value))
{
String_delete(definition->value);
String_doneTokenizer(&stringTokenizer);
String_delete(t);
fprintf(stderr,"ERROR: Invalid length in definition '%s'!\n",s);
return FALSE;
}
break;
case DEFINITION_TYPE_RANDOMIZE:
if (!String_scan(w,STRING_BEGIN,"%u",&length))
{
String_doneTokenizer(&stringTokenizer);
String_delete(t);
fprintf(stderr,"ERROR: Invalid length in definition '%s'!\n",s);
return FALSE;
}
if (length > sizeof(buffer)) length = sizeof(buffer);
getRandomBuffer(buffer,length);
definition->value = String_newBuffer(buffer,length);
break;
case DEFINITION_TYPE_INSERT:
definition->value = String_new();
if (!String_scan(w,STRING_BEGIN,"%S",definition->value))
{
String_delete(definition->value);
String_doneTokenizer(&stringTokenizer);
String_delete(t);
fprintf(stderr,"ERROR: Invalid value in definition '%s'!\n",s);
return FALSE;
}
break;
case DEFINITION_TYPE_DELETE:
if (!String_scan(w,STRING_BEGIN,"%u",&definition->length))
{
String_doneTokenizer(&stringTokenizer);
String_delete(t);
fprintf(stderr,"ERROR: Invalid length in definition '%s'!\n",s);
return FALSE;
}
break;
}
}
else
{
switch (definition->type)
{
case DEFINITION_TYPE_MODIFY:
definition->value = String_newChar((char)getRandomByte(256));
break;
case DEFINITION_TYPE_RANDOMIZE:
getRandomBuffer(buffer,sizeof(buffer));
definition->value = String_newBuffer(buffer,getRandomInteger(sizeof(buffer)));
break;
case DEFINITION_TYPE_INSERT:
definition->value = String_new();
if (!String_scan(w,STRING_BEGIN,"%S",&definition->value))
{
String_delete(definition->value);
String_doneTokenizer(&stringTokenizer);
String_delete(t);
fprintf(stderr,"ERROR: Invalid value in definition '%s'!\n",s);
return FALSE;
}
break;
case DEFINITION_TYPE_DELETE:
if (!String_scan(w,STRING_BEGIN,"%u",&definition->length))
{
String_doneTokenizer(&stringTokenizer);
String_delete(t);
fprintf(stderr,"ERROR: Invalid length in definition '%s'!\n",s);
return FALSE;
}
break;
}
}
if (String_getNextToken(&stringTokenizer,&w,NULL))
{
String_doneTokenizer(&stringTokenizer);
String_delete(t);
fprintf(stderr,"ERROR: Invalid definition '%s'!\n",s);
return FALSE;
}
String_doneTokenizer(&stringTokenizer);
String_delete(t);
return TRUE;
}