mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-07-08 03:45:36 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

bpo-39882: Add _Py_FatalErrorFormat() function (GH-19157)

Browse source
This commit is contained in:
Victor Stinner 2020-03-25 19:27:36 +01:00 • committed by GitHub
parent ace018ca47
commit 87d3b9db4a
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
15 changed files with 158 additions and 110 deletions
Download patch file Download diff file Expand all files Collapse all files

10
Python/mysnprintf.c
View file

@ -81,12 +81,12 @@ PyOS_vsnprintf(char *str, size_t size, const char *format, va_list va)
}
len = vsprintf(buffer, format, va);
if (len < 0)
if (len < 0) {
/* ignore the error */;
else if ((size_t)len >= size + _PyOS_vsnprintf_EXTRA_SPACE)
Py_FatalError("Buffer overflow in PyOS_snprintf/PyOS_vsnprintf");
}
else if ((size_t)len >= size + _PyOS_vsnprintf_EXTRA_SPACE) {
_Py_FatalErrorFunc(__func__, "Buffer overflow");
}
else {
const size_t to_copy = (size_t)len < size ?
(size_t)len : size - 1;