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// RUN: %clang_analyze_cc1 -verify -analyzer-checker=core,unix.API -analyzer-output=text %s
// Verify that the UnixAPIChecker finds the missing mode value regardless
// of the particular values of these macros, particularly O_CREAT.
#define O_RDONLY 0x2000
#define O_WRONLY 0x8000
#define O_CREAT 0x0002
extern int open(const char *path, int flags, ...);
void missing_mode_1(const char *path) {
(void)open(path, O_CREAT); // expected-warning{{Call to 'open' requires a 3rd argument when the 'O_CREAT' flag is set}} \
expected-note{{Call to 'open' requires a 3rd argument when the 'O_CREAT' flag is set}}
}
extern int some_flag;
void missing_mode_2(const char *path) {
int mode = O_WRONLY;
if (some_flag) { // expected-note {{Assuming 'some_flag' is not equal to 0}} \
expected-note {{Taking true branch}}
mode |= O_CREAT;
}
(void)open(path, mode); // expected-warning{{Call to 'open' requires a 3rd argument when the 'O_CREAT' flag is set}} \
expected-note{{Call to 'open' requires a 3rd argument when the 'O_CREAT' flag is set}}
}
void no_creat(const char* path) {
int mode = O_RDONLY;
(void)open(path, mode); // ok
}
void mode_is_there(const char *path) {
int mode = O_WRONLY;
if (some_flag) {
mode |= O_CREAT;
}
(void)open(path, mode, 0770); // ok
}
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