forked from OSchip/llvm-project
63 lines
1.3 KiB
C++
63 lines
1.3 KiB
C++
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.API -verify %s
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extern "C" {
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#ifndef O_RDONLY
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#define O_RDONLY 0
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#endif
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#ifndef NULL
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#define NULL ((void*) 0)
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#endif
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int open(const char *, int, ...);
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int close(int fildes);
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} // extern "C"
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namespace MyNameSpace {
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int open(const char *a, int b, int c, int d);
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}
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void unix_open(const char *path) {
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int fd;
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fd = open(path, O_RDONLY); // no-warning
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if (fd > -1)
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close(fd);
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}
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void unix_open_misuse(const char *path) {
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int fd;
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int mode = 0x0;
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fd = open(path, O_RDONLY, mode, NULL); // expected-warning{{Call to 'open' with more than 3 arguments}}
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if (fd > -1)
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close(fd);
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}
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// Don't treat open() in namespaces as the POSIX open()
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void namespaced_open(const char *path) {
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MyNameSpace::open("Hi", 2, 3, 4); // no-warning
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using namespace MyNameSpace;
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open("Hi", 2, 3, 4); // no-warning
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int fd;
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int mode = 0x0;
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fd = ::open(path, O_RDONLY, mode, NULL); // expected-warning{{Call to 'open' with more than 3 arguments}}
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if (fd > -1)
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close(fd);
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}
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class MyClass {
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public:
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static int open(const char *a, int b, int c, int d);
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int open(int a, int, int c, int d);
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};
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void class_qualified_open() {
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MyClass::open("Hi", 2, 3, 4); // no-warning
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MyClass mc;
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mc.open(1, 2, 3, 4); // no-warning
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}
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