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v0.5.1
v0.5.1
https://github.com/python/cpython
Revision 788d7bfe189e715eab3855c20ea5d6da0d8bed70 authored by Miss Islington (bot) on 27 May 2020, 15:46:57 UTC, committed by GitHub on 27 May 2020, 15:46:57 UTC
ctypes now raises an ArgumentError when a callback is invoked with more than 1024 arguments. The ctypes module allocates arguments on the stack in ctypes_callproc() using alloca(), which is problematic when large numbers of arguments are passed. Instead of a stack overflow, this commit raises an ArgumentError if more than 1024 parameters are passed. (cherry picked from commit 29a1384c040d39659e7d01f1fd7b6eb71ef2634e) Co-authored-by: Sean Gillespie <sean@swgillespie.me>
1 parent 43fccb1
Tip revision: 788d7bfe189e715eab3855c20ea5d6da0d8bed70 authored by Miss Islington (bot) on 27 May 2020, 15:46:57 UTC
bpo-13097: ctypes: limit callback to 1024 arguments (GH-19914)
bpo-13097: ctypes: limit callback to 1024 arguments (GH-19914)
Tip revision: 788d7bf
node.h
/* Parse tree node interface */
#ifndef Py_NODE_H
#define Py_NODE_H
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _node {
short n_type;
char *n_str;
int n_lineno;
int n_col_offset;
int n_nchildren;
struct _node *n_child;
int n_end_lineno;
int n_end_col_offset;
} node;
PyAPI_FUNC(node *) PyNode_New(int type);
PyAPI_FUNC(int) PyNode_AddChild(node *n, int type,
char *str, int lineno, int col_offset,
int end_lineno, int end_col_offset);
PyAPI_FUNC(void) PyNode_Free(node *n);
#ifndef Py_LIMITED_API
PyAPI_FUNC(Py_ssize_t) _PyNode_SizeOf(node *n);
#endif
/* Node access functions */
#define NCH(n) ((n)->n_nchildren)
#define CHILD(n, i) (&(n)->n_child[i])
#define TYPE(n) ((n)->n_type)
#define STR(n) ((n)->n_str)
#define LINENO(n) ((n)->n_lineno)
/* Assert that the type of a node is what we expect */
#define REQ(n, type) assert(TYPE(n) == (type))
PyAPI_FUNC(void) PyNode_ListTree(node *);
void _PyNode_FinalizeEndPos(node *n); // helper also used in parsetok.c
#ifdef __cplusplus
}
#endif
#endif /* !Py_NODE_H */
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