Mercurial > cpython-lru_cache-weakref
view Python/pystrcmp.c @ 79005:2fa7c104f909
Fix out of bounds read in long_new() for empty bytes with an explicit base. int(b'', somebase) calls PyLong_FromString() with char* of length 1 but the function accesses the first argument at offset 1. CID 715359
| author | Christian Heimes <christian@cheimes.de> |
|---|---|
| date | Wed, 12 Sep 2012 15:32:06 +0200 |
| parents | f197407bdba2 |
| children |
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/* Cross platform case insensitive string compare functions */ #include "Python.h" int PyOS_mystrnicmp(const char *s1, const char *s2, Py_ssize_t size) { if (size == 0) return 0; while ((--size > 0) && (tolower((unsigned)*s1) == tolower((unsigned)*s2))) { if (!*s1++ || !*s2++) break; } return tolower((unsigned)*s1) - tolower((unsigned)*s2); } int PyOS_mystricmp(const char *s1, const char *s2) { while (*s1 && (tolower((unsigned)*s1++) == tolower((unsigned)*s2++))) { ; } return (tolower((unsigned)*s1) - tolower((unsigned)*s2)); }
