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Trent Mick <trentm@activestate.com>: 

Limit the 'b' formatter of PyArg_ParseTuple to valid values of an unsigned
char, i.e. [0,UCHAR_MAX]. It is expected that this is the common usage of 'b'.
An OverflowError is raised if the parsed value is outside this range.
This commit is contained in:
Fred Drake 2000-05-09 21:50:00 +00:00
parent a69ef82643
commit 230cae7474
1 changed files with 12 additions and 12 deletions
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24
Python/getargs.c
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@ -465,28 +465,28 @@ convertsimple1(arg, p_format, p_va)
switch (c) {
case 'b': /* byte -- very short int */
case 'b': /* unsigned byte -- very short int */
{
char *p = va_arg(*p_va, char *);
long ival = PyInt_AsLong(arg);
if (ival == -1 && PyErr_Occurred())
return "integer<b>";
else if (ival < CHAR_MIN) {
else if (ival < 0) {
PyErr_SetString(PyExc_OverflowError,
"byte integer is less than minimum");
"unsigned byte integer is less than minimum");
return "integer<b>";
}
else if (ival > CHAR_MAX && ival >= 256) {
else if (ival > UCHAR_MAX) {
PyErr_SetString(PyExc_OverflowError,
"byte integer is greater than maximum");
"unsigned byte integer is greater than maximum");
return "integer<b>";
}
else
*p = (char) ival;
*p = (unsigned char) ival;
break;
}
case 'h': /* short int */
case 'h': /* signed short int */
{
short *p = va_arg(*p_va, short *);
long ival = PyInt_AsLong(arg);
@ -494,12 +494,12 @@ convertsimple1(arg, p_format, p_va)
return "integer<h>";
else if (ival < SHRT_MIN) {
PyErr_SetString(PyExc_OverflowError,
"short integer is less than minimum");
"signed short integer is less than minimum");
return "integer<h>";
}
else if (ival > SHRT_MAX) {
PyErr_SetString(PyExc_OverflowError,
"short integer is greater than maximum");
"signed short integer is greater than maximum");
return "integer<h>";
}
else
@ -507,7 +507,7 @@ convertsimple1(arg, p_format, p_va)
break;
}
case 'i': /* int */
case 'i': /* signed int */
{
int *p = va_arg(*p_va, int *);
long ival = PyInt_AsLong(arg);
@ -515,12 +515,12 @@ convertsimple1(arg, p_format, p_va)
return "integer<i>";
else if (ival < INT_MIN) {
PyErr_SetString(PyExc_OverflowError,
"integer is less than minimum");
"signed integer is less than minimum");
return "integer<i>";
}
else if (ival > INT_MAX) {
PyErr_SetString(PyExc_OverflowError,
"integer is greater than maximum");
"signed integer is greater than maximum");
return "integer<i>";
}
else