static void test_string_repeat() {
char *string = string_repeat('a', 10);
CU_ASSERT_STRING_EQUAL(string, "aaaaaaaaaa");
CU_ASSERT_EQUAL(strlen(string), 10);
free(string);
}
char* completarBloque(char* bloqueACompletar, int tamanioDeBloque){
int cantACompletar = tamanioDeBloque - string_length(bloqueACompletar);
char* aux = string_duplicate(bloqueACompletar);
string_append(&aux,string_repeat(CARACTER_VACIO,cantACompletar));
return aux;
}
int main(void){
unsigned int addr, i, offset = 0;
char *arg3 = string_repeat(384,"1");
char *params [] = {VULN,"2","30",arg3,NULL};
char *env [] = {separator,shellcode, NULL};
execve(params[0],params,env);
perror("execve");
exit(1);
}
String StringUtil::Repeat(CStrRef input, int count) {
if (count < 0) {
raise_warning("Second argument has to be greater than or equal to 0");
return String();
}
if (count == 0) {
return "";
}
if (!input.empty()) {
int len = input.size();
char *ret = string_repeat(input.data(), len, count);
if (ret) {
return String(ret, len, AttachString);
}
}
return input;
}
void logBloqueados(t_list* bloqueados) {
int i;
char *s = string_new();
ITEM_NIVEL * temp = NULL;
log_info(logFile, "Se detecto interbloque entre %d personajes",
bloqueados->elements_count);
for (i = 0; i < bloqueados->elements_count; i++) {
temp = list_get(bloqueados, i);
string_append(&s, "-");
string_append(&s, string_repeat(temp->id, 1));
}
log_info(logFile, "Personajes involucharods: %s", s);
free(s);
}
int finalizar_en_archivo(int pid) {
usleep(swap_config->retardo_acceso * 1000);
int fd = open("swap.data", O_RDWR, S_IWRITE | S_IREAD);
if (fd == -1)
return -1;
struct stat buf;
if ((stat("swap.data", &buf)) == -1) {
close(fd);
return -1;
}
char * espacio_swap = mmap((caddr_t) 0, buf.st_size, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_NORESERVE, fd, 0);
if (espacio_swap == MAP_FAILED) {
close(fd);
return -1;
}
char * hueco = string_repeat('\0', swap_config->pagina_size);
bool from_process(t_swap * sw) {
return (sw->pid == pid);
}
t_list * swaps_del_pid = list_filter(list_swap, (void *) from_process);
int direccion = 0;
void liberar_espacio(t_swap * s) {
direccion = (s->posicion_en_swap) * swap_config->pagina_size;
memcpy(espacio_swap + direccion, hueco, swap_config->pagina_size);
direccion = 0;
}
void consola() {
//char eleccion[30];
char* eleccion;
char* comando;
char* parametro;
char c = 0;
int longComando = 0;
int posInicioParametro = 0;
int consola = 1;
while (consola) {
posInicioParametro = 0;
eleccion = string_new();
comando = string_new();
puts(
"____________________________________________________________________\n\n"
"Comandos disponibles: \n"
"- 1) correr PATH \n"
"- 2) finalizar PID \n"
"- 3) ps \n"
"- 4) cpu \n"
"Ingrese un comando: ");
scanf("%c", &c);
//printf("Escanee %c\n",c);
longComando++;
eleccion = (char*) malloc( sizeof(char) * longComando );
string_append(&eleccion, string_repeat(c,1));
while(c != '\n'){
scanf("%c", &c);
//printf("Escanee %c\n",c);
longComando++;
eleccion = (char*) realloc(eleccion, sizeof(char) * longComando );
string_append(&eleccion, string_repeat(c,1));
}
eleccion = (char*) realloc(eleccion, sizeof(char) * (longComando+1) );
eleccion[longComando] = '\0';
int i = 0;
while(eleccion[i] != '\0'){
if(eleccion[i] == ' ') posInicioParametro = i+1;
i++;
}
//printf("El parametro empieza en la posicion %d\n", posInicioParametro);
if(posInicioParametro != 0){
parametro = string_new();
comando = (char*) malloc( sizeof(char) * strlen(string_substring(eleccion, 0, posInicioParametro-1)));
comando = string_substring(eleccion, 0, posInicioParametro-1);
parametro = (char*) malloc( sizeof(char) * strlen(string_substring_from(eleccion, posInicioParametro)));
parametro = string_substring_from(eleccion, posInicioParametro);
}
else{
//printf("strlen %d \n", strlen(eleccion));
eleccion[strlen(eleccion)-1] = '\0';
//printf("strlen %d \n", strlen(eleccion));
comando = (char*) malloc( sizeof(char) * strlen(eleccion) );
comando = string_duplicate(eleccion);
}
if(posInicioParametro == 0){
if(strcmp(eleccion, "ps") == 0){
printf("3Comando a ejecutar: %s\n", comando);
}
else{
if(strcmp(eleccion, "cpu") == 0){
printf("4Comando a ejecutar: %s\n", comando);
}
else{
printf("El comando (%s) ingresado no es valido \n", comando);
eleccion[0] = '\0';
comando[0] = '\0';
}
}
}
if(posInicioParametro != 0){
if(strcmp(comando, "correr") == 0){
printf("1Comando a ejecutar: %s %s\n", comando, parametro);
Enviar(socketCPU, comando);
Enviar(socketCPU, parametro);
}
else{
if(strcmp(comando, "finalizar") == 0){
printf("2Comando a ejecutar: %s %s\n", comando, parametro);
}
else{
printf("El comando (%s %s) ingresado no es valido \n", comando, parametro);
eleccion[0] = '\0';
comando[0] = '\0';
parametro[0] = '\0';
}
}
}
free(eleccion);
free(comando);
if(posInicioParametro != 0){
free(parametro);
}
}
}
int step(context* ctx, avm* vm)
{
int m, iop1, iop2, iopdest, i, res = ZEN_NO_ERROR;
int framesize; /* used for high order functions */
char *str, *str1, *str2, ibuf[32];
symbol* s;
thread* th;
ctable* table;
instruction* ins = &vm->instructions[vm->pc];
iop1 = ins->op1.ival; iop2 = ins->op2.ival; iopdest = ins->opdest.ival;
#ifdef ZEN_ENABLE_TRAP
if (vm->traphook)
(vm->traphook)(vm);
#endif
if (ins->op == opHalt)
return ZEN_VM_HALT;
switch (ins->op)
{
case opLogand:
seti(&vm->regs[iopdest], (vm->regs[iop1].entity.ival==0||vm->regs[iop2].entity.ival==0)?0:1);
break;
case opLogor:
seti(&vm->regs[iopdest], (vm->regs[iop1].entity.ival==1||vm->regs[iop2].entity.ival==1)?1:0);
break;
case opBitcom:
if (gettypew(&vm->regs[iopdest])==TINTEGER)
seti(&vm->regs[iopdest], ~vm->regs[iopdest].entity.ival)
else setvmerror(vm, ZEN_VM_INVALID_OPERATION);
break;
case opBitand:
if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TINTEGER)
seti(&vm->regs[iopdest], (vm->regs[iop1].entity.ival & vm->regs[iop2].entity.ival))
else setvmerror(vm, ZEN_VM_INVALID_OPERATION);
break;
case opBitor:
if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TINTEGER)
seti(&vm->regs[iopdest], (vm->regs[iop1].entity.ival | vm->regs[iop2].entity.ival))
else setvmerror(vm, ZEN_VM_INVALID_OPERATION);
break;
case opBitxor:
if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TINTEGER)
seti(&vm->regs[iopdest], vm->regs[iop1].entity.ival ^ vm->regs[iop2].entity.ival)
else setvmerror(vm, ZEN_VM_INVALID_OPERATION);
break;
case opLshift:
seti(&vm->regs[iopdest], (vm->regs[iop1].entity.ival<<vm->regs[iop2].entity.ival));
break;
case opRshift:
seti(&vm->regs[iopdest], (vm->regs[iop1].entity.ival>>vm->regs[iop2].entity.ival));
break;
case opNeg:
if (gettypew(&vm->regs[iopdest])==TINTEGER)
seti(&vm->regs[iopdest], -vm->regs[iopdest].entity.ival)
else
setf(&vm->regs[iopdest], -vm->regs[iopdest].entity.fval)
break;
case opNot:
vm->regs[iopdest].entity.ival = !vm->regs[iopdest].entity.ival;
break;
case opFact:
vm->regs[iopdest].entity.ival = factorial(vm->regs[iopdest].entity.ival);
break;
case opAdd:
if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TINTEGER)
seti(&vm->regs[iopdest], vm->regs[iop1].entity.ival + vm->regs[iop2].entity.ival)
else if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TFLOAT)
setf(&vm->regs[iopdest], (float)vm->regs[iop1].entity.ival + vm->regs[iop2].entity.fval)
else if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TSTRING)
{
str = (char*)calloc(strlen(getdata(vm->hp.heap, vm->regs[ins->op2.ival].entity.ival))+64, sizeof(char));
sprintf(str, "%d%s", vm->regs[iop1].entity.ival, getdata(vm->hp.heap, vm->regs[ins->op2.ival].entity.ival));
sets(&vm->regs[ins->opdest.ival], newstring(vm,str));
free(str);
}
else if (gettypew(&vm->regs[iop1])==TFLOAT && gettypew(&vm->regs[iop2])==TINTEGER)
setf(&vm->regs[iopdest], vm->regs[iop1].entity.fval + (float)vm->regs[iop2].entity.ival)
else if (gettypew(&vm->regs[iop1])==TFLOAT && gettypew(&vm->regs[iop2])==TFLOAT)
setf(&vm->regs[iopdest], vm->regs[iop1].entity.fval + vm->regs[iop2].entity.fval)
else if (gettypew(&vm->regs[iop1])==TFLOAT && gettypew(&vm->regs[iop2])==TSTRING)
{
str = (char*)calloc(strlen(getdata(vm->hp.heap, vm->regs[ins->op2.ival].entity.ival))+64, sizeof(char));
sprintf(str, "%f%s", vm->regs[iop1].entity.fval, getdata(vm->hp.heap, vm->regs[ins->op2.ival].entity.ival));
sets(&vm->regs[ins->opdest.ival], newstring(vm,str));
free(str);
}
else if (gettypew(&vm->regs[iop1])==TSTRING && gettypew(&vm->regs[iop2])==TINTEGER)
{
str = (char*)calloc(strlen(getdata(vm->hp.heap, vm->regs[ins->op1.ival].entity.ival))+64, sizeof(char));
sprintf(str, "%s%d", getdata(vm->hp.heap, vm->regs[iop1].entity.ival), vm->regs[ins->op2.ival].entity.ival);
sets(&vm->regs[ins->opdest.ival], newstring(vm,str));
free(str);
}
else if (gettypew(&vm->regs[iop1])==TSTRING && gettypew(&vm->regs[iop2])==TFLOAT)
{
str = (char*)calloc(strlen(getdata(vm->hp.heap, vm->regs[ins->op1.ival].entity.ival))+64, sizeof(char));
sprintf(str, "%s%f", getdata(vm->hp.heap, vm->regs[iop1].entity.ival), vm->regs[ins->op2.ival].entity.fval);
sets(&vm->regs[ins->opdest.ival], newstring(vm,str));
free(str);
}
else if (gettypew(&vm->regs[iop1])==TSTRING && gettypew(&vm->regs[iop2])==TSTRING)
{
char* s1 = getdata(vm->hp.heap, vm->regs[ins->op1.ival].entity.ival);
str = (char*)calloc(strlen(getdata(vm->hp.heap, vm->regs[ins->op1.ival].entity.ival))
+strlen(getdata(vm->hp.heap, vm->regs[ins->op2.ival].entity.ival))+1, sizeof(char));
strcpy(str, (char*)getdata(vm->hp.heap, vm->regs[ins->op1.ival].entity.ival));
strcat(str, (char*)getdata(vm->hp.heap, vm->regs[ins->op2.ival].entity.ival));
sets(&vm->regs[ins->opdest.ival], newstring(vm,str));
free(str);
}
//- added for testing
else if (gettypew(&vm->regs[iop1])== TTABLE && gettypew(&vm->regs[iop2])==TINTEGER)
{/*
long tindex = TOTinsert(vm, off);
ctable* tbl = (ctable*)getdata(vm->hp.heap, ind2off(vm->regs[iop1].entity.ival));
word index, source;
seti(&index, tbl->nextslot);
seti(&source, vm->regs[iop2].entity.ival);
IA(vm, tbl, tindex, &index, &source);
sett(&vm->regs[iopdest], tindex);*/
}
else setvmerror(vm, ZEN_VM_INVALID_OPERATION);
break;
case opMinus:
if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TINTEGER)
seti(&vm->regs[iopdest], vm->regs[iop1].entity.ival - vm->regs[iop2].entity.ival)
else if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TFLOAT)
setf(&vm->regs[iopdest], (float)vm->regs[iop1].entity.ival - vm->regs[iop2].entity.fval)
else if (gettypew(&vm->regs[iop1])==TFLOAT && gettypew(&vm->regs[iop2])==TINTEGER)
setf(&vm->regs[iopdest], vm->regs[iop1].entity.fval - (float)vm->regs[iop2].entity.ival)
else if (gettypew(&vm->regs[iop1])==TFLOAT && gettypew(&vm->regs[iop2])==TFLOAT)
setf(&vm->regs[iopdest], vm->regs[iop1].entity.fval - vm->regs[iop2].entity.fval)
else setvmerror(vm, ZEN_VM_INVALID_OPERATION);
break;
case opMultiply:
if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TINTEGER)
seti(&vm->regs[iopdest], vm->regs[iop1].entity.ival * vm->regs[iop2].entity.ival)
else if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TFLOAT)
setf(&vm->regs[iopdest], (float)vm->regs[iop1].entity.ival * vm->regs[iop2].entity.fval)
else if (gettypew(&vm->regs[iop1])==TFLOAT && gettypew(&vm->regs[iop2])==TINTEGER)
setf(&vm->regs[iopdest], vm->regs[iop1].entity.fval * (float)vm->regs[iop2].entity.ival)
else if (gettypew(&vm->regs[iop1])==TFLOAT && gettypew(&vm->regs[iop2])==TFLOAT)
setf(&vm->regs[iopdest], vm->regs[iop1].entity.fval * vm->regs[iop2].entity.fval)
//- String repeat
else if (gettypew(&vm->regs[iop1])==TSTRING && gettypew(&vm->regs[iop2])==TINTEGER)
{
char* s1 = string_repeat(getdata(vm->hp.heap, vm->regs[ins->op1.ival].entity.ival), vm->regs[iop2].entity.ival);
sets(&vm->regs[iopdest], newstring(vm, s1))
}
else if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TSTRING)
seti(&vm->regs[iopdest], vm->regs[iop1].entity.ival * vm->regs[iop2].entity.ival)
else if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TFLOAT)
setf(&vm->regs[iopdest], (float)vm->regs[iop1].entity.ival * vm->regs[iop2].entity.fval)
else if (gettypew(&vm->regs[iop1])==TFLOAT && gettypew(&vm->regs[iop2])==TINTEGER)
setf(&vm->regs[iopdest], vm->regs[iop1].entity.fval * (float)vm->regs[iop2].entity.ival)
else if (gettypew(&vm->regs[iop1])==TFLOAT && gettypew(&vm->regs[iop2])==TFLOAT)
setf(&vm->regs[iopdest], vm->regs[iop1].entity.fval * vm->regs[iop2].entity.fval)
//- String repeat
else if (gettypew(&vm->regs[iop1])==TSTRING && gettypew(&vm->regs[iop2])==TINTEGER)
{
char* s1 = string_repeat(getdata(vm->hp.heap, vm->regs[ins->op1.ival].entity.ival), vm->regs[iop2].entity.ival);
sets(&vm->regs[iopdest], newstring(vm, s1))
}
else if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TSTRING)
{
char* s1 = string_repeat(getdata(vm->hp.heap, vm->regs[ins->op2.ival].entity.ival), vm->regs[iop1].entity.ival);
sets(&vm->regs[iopdest], newstring(vm, s1))
}
else setvmerror(vm, ZEN_VM_INVALID_OPERATION);
break;
//- added for testing
case opPower:
if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TINTEGER)
seti(&vm->regs[iopdest], pow(vm->regs[iop1].entity.ival, vm->regs[iop2].entity.ival))
else if (gettypew(&vm->regs[iop1])==TINTEGER && gettypew(&vm->regs[iop2])==TFLOAT)
setf(&vm->regs[iopdest], pow((float)vm->regs[iop1].entity.ival, vm->regs[iop2].entity.fval))
else if (gettypew(&vm->regs[iop1])==TFLOAT && gettypew(&vm->regs[iop2])==TINTEGER)
setf(&vm->regs[iopdest], pow(vm->regs[iop1].entity.fval, (float)vm->regs[iop2].entity.ival))
else if (gettypew(&vm->regs[iop1])==TFLOAT && gettypew(&vm->regs[iop2])==TFLOAT)
setf(&vm->regs[iopdest], pow(vm->regs[iop1].entity.fval, vm->regs[iop2].entity.fval))
else setvmerror(vm, ZEN_VM_INVALID_OPERATION);