2015-11-20 07:22:05 +00:00
|
|
|
#ifdef HAVE_CONFIG_H
|
|
|
|
#include "config.h"
|
2015-11-20 07:36:13 +00:00
|
|
|
#else
|
|
|
|
#include "php_config.h"
|
2015-11-20 07:22:05 +00:00
|
|
|
#endif
|
|
|
|
|
2013-05-05 08:39:33 +00:00
|
|
|
#include "gd_compat.h"
|
2013-05-06 08:07:06 +00:00
|
|
|
#include "php.h"
|
2013-05-05 07:54:27 +00:00
|
|
|
|
2013-05-06 08:00:45 +00:00
|
|
|
int overflow2(int a, int b)
|
|
|
|
{
|
2014-10-15 07:37:55 +00:00
|
|
|
|
2013-05-06 08:00:45 +00:00
|
|
|
if(a <= 0 || b <= 0) {
|
2020-01-15 10:27:29 +00:00
|
|
|
php_error_docref(NULL, E_WARNING, "One parameter to a memory allocation multiplication is negative or zero, failing operation gracefully\n");
|
2013-05-06 08:00:45 +00:00
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
if(a > INT_MAX / b) {
|
2020-01-15 10:27:29 +00:00
|
|
|
php_error_docref(NULL, E_WARNING, "Product of memory allocation multiplication would exceed INT_MAX, failing operation gracefully\n");
|
2013-05-06 08:00:45 +00:00
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|