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