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Interpreteur non sécurisé terminé

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This commit is contained in:
Paul Faure 2021-06-18 14:05:19 +02:00
parent 9c38352e61
commit 95409eb5bf
2 changed files with 10 additions and 1 deletions
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9
Lex_Yacc/as.y
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@ -4,6 +4,7 @@
%{
#include "../Tables/tables.h"
#include <stdlib.h>
%}
%token tMUL tDIV tADD tSUB tINF tSUP tEQU
@ -65,7 +66,13 @@ Instruction : tSTOP tNB {add_instruction(STOP, $2, 0, 0);};
%%
int main(void) {
int main(int argc, char * argv[]) {
if (argc != 2) {
printf("Specifiez le fichier à interpreter");
exit(2);
}
extern FILE * yyin;
yyin = fopen(argv[1], "r");
yyparse();
execute();
return 0;

2
Tables/tables.c
View file

@ -181,8 +181,10 @@ void execute() {
eip = programme[eip].param1 - 1;
} else if (programme[eip].instruction == RET) {
int lastebp = ebp;
eip = mem[check_adresse(ebp - 1)] - 1;
ebp = mem[check_adresse(ebp - 2)];
mem[check_adresse(lastebp - 2)] = mem[check_adresse(lastebp)];
} else if (programme[eip].instruction == STOP) {
if (programme[eip].param1 == 0) {