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Fixing infinite loop issue (#5601)

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This commit is contained in:
Ahmed Mohamed Abd El-MAwgood 2016-08-25 12:26:35 +03:00 committed by radare
parent 59a03b7d9a
commit ee30afde45
1 changed files with 10 additions and 0 deletions
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10
libr/core/anal_tp.c
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@ -4,6 +4,8 @@
#include <r_anal.h>
#include <r_util.h>
#include <r_core.h>
#define LOOP_MAX 10
enum {
ROMEM=0,
ASM_TRACE,
@ -216,6 +218,14 @@ R_API void r_anal_type_match(RCore *core, RAnalFunction *fcn) {
r_cons_break (NULL, NULL);
while (!r_cons_is_breaked ()) {
RAnalOp *op = r_core_anal_op (core, addr);
int loop_count = sdb_num_get ( core->anal->esil->db_trace, sdb_fmt (-1, "0x%"PFMT64x".count", addr), 0);
if (loop_count > LOOP_MAX) {
eprintf ("Unfortunately your evilly engineered %s function trapped my most innocent `aftm` in an infinite loop.\n", fcn->name);
eprintf ("I kept trace log for you to review and find out how bad things were going to happen by yourself.\n");
eprintf ("You can view this log by `ate`. Meanwhile, I will train on how to behave with such behaviour without bothering you.\n");
return;
}
sdb_num_set (core->anal->esil->db_trace, sdb_fmt (-1, "0x%"PFMT64x".count", addr), loop_count + 1, 0);
if (!op || op->type == R_ANAL_OP_TYPE_RET) {
r_anal_emul_restore (core, esil_var);
return;