21 lines · c
1// This test case crashes if strncasecmp is modeled in StdCLibraryFunctions.2// Either we fix CStringChecker to handle the call prerequisites in3// checkPreCall, or we must not evaluate any pure functions in4// StdCLibraryFunctions that are also handled in CStringChecker.5 6// RUN: %clang_analyze_cc1 %s \7// RUN: -analyzer-checker=core \8// RUN: -analyzer-checker=unix.StdCLibraryFunctions \9// RUN: -analyzer-checker=unix.cstring.NullArg \10// RUN: -analyzer-config unix.StdCLibraryFunctions:ModelPOSIX=true \11// RUN: -triple x86_64-unknown-linux-gnu \12// RUN: -verify13 14typedef __typeof(sizeof(int)) size_t;15int strncasecmp(const char *s1, const char *s2, size_t n);16 17int strncasecmp_null_argument(char *a, size_t n) {18 char *b = 0;19 return strncasecmp(a, b, n); // expected-warning{{Null pointer passed as 2nd argument to string comparison function}}20}21