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int open(const char *, int mode);
#define O_RDONLY 0
#define O_WRONLY 1
#define O_RDWR 2
typedef enum {
S_IRWXU
// etc
} mode_t;
int creat (const char *, mode_t mode);
void
test_1 (const char *path)
{
int fd = open (path, O_RDONLY); /* { dg-message "\\(1\\) opened here" } */
return; /* { dg-warning "leak of file descriptor 'fd' \\\[CWE-775\\\]" "warning" } */
/* { dg-message "\\(2\\) 'fd' leaks here; was opened at \\(1\\)" "event" { target *-*-* } .-1 } */
}
void
test_2 (const char *path)
{
int fd = open (path, O_RDWR); /* { dg-message "\\(1\\) opened here" } */
if (fd >= 0) /* { dg-message "\\(2\\) assuming 'fd' is a valid file descriptor" "event1" } */
/* { dg-message "\\(3\\) following 'true' branch \\(when 'fd >= 0'\\)..." "event2" { target *-*-* } .-1 } */
{
return; /* { dg-warning "leak of file descriptor 'fd' \\\[CWE-775\\\]" "warning" } */
/* { dg-message "\\(4\\) ...to here" "event1" { target *-*-* } .-1 } */
/* { dg-message "\\(5\\) 'fd' leaks here; was opened at \\(1\\)" "event2" { target *-*-* } .-2 } */
}
}
void
test_3 (const char *path)
{
int fd = open (path, O_WRONLY); /* { dg-message "\\(1\\) opened here" } */
return; /* { dg-warning "leak of file descriptor 'fd' \\\[CWE-775\\\]" "warning" } */
}
void test_4 (const char *path)
{
open(path, O_RDONLY); /* { dg-warning "leak of file descriptor \\\[CWE-775\\\]" } */
/* { dg-message "\\(1\\) leaks here" "" { target *-*-* } .-1 } */
}
void
test_5 (const char *path, mode_t mode)
{
creat (path, mode); /* { dg-warning "leak of file descriptor \\\[CWE-775\\\]" } */
}
void
test_6 (const char *path, mode_t mode)
{
int fd = creat (path, mode);
return; /* { dg-warning "leak of file descriptor 'fd' \\\[CWE-775\\\]" } */
}
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