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#ifdef _AIX
#define _MODE_T
#endif
#include <stdio.h>
int open(const char *, int mode);
void close(int fd);
int write (int fd, void *buf, int nbytes);
int read (int fd, void *buf, int nbytes);
#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, void *buf)
{
int fd = open (path, O_RDONLY); /* { dg-message "opened here as read-only" } */
if (fd >= 0) /* { dg-message "assuming 'fd' is a valid file descriptor \\(>= 0\\)" "event1" } */
/* { dg-message "following 'true' branch \\(when 'fd >= 0'\\)..." "event2" { target *-*-* } .-1 } */
{
write (fd, buf, 1); /* { dg-warning "'write' on read-only file descriptor 'fd'" "warning" } */
/* { dg-message "\\(4\\) ...to here" "event1" { target *-*-* } .-1 } */
/* { dg-message "\\(5\\) 'write' on read-only file descriptor 'fd'" "event2" { target *-*-* } .-2 } */
close (fd);
}
}
void
test_2 (const char *path, void *buf)
{
int fd = open (path, O_WRONLY); /* { dg-message "opened here as write-only" } */
if (fd >= 0) /* { dg-message "assuming 'fd' is a valid file descriptor \\(>= 0\\)" "event1" } */
/* { dg-message "following 'true' branch \\(when 'fd >= 0'\\)..." "event2" { target *-*-* } .-1 } */
{
read (fd, buf, 1); /* { dg-warning "'read' on write-only file descriptor 'fd'" "warning" } */
/* { dg-message "\\(4\\) ...to here" "event1" { target *-*-* } .-1 } */
/* { dg-message "\\(5\\) 'read' on write-only file descriptor 'fd'" "event2" { target *-*-* } .-2 } */
close (fd);
}
}
void
test_3 (const char *path, void *buf)
{
int fd = open (path, O_RDWR); /* { dg-message "\\(1\\) opened here" } */
if (fd >= 0)
{
close(fd); /* {dg-message "\\(2\\) closed here"} */
read(fd, buf, 1); /* { dg-warning "'read' on closed file descriptor 'fd'" } */
/* {dg-message "\\(3\\) 'read' on closed file descriptor 'fd'; 'close' was at \\(2\\)" "" {target *-*-*} .-1 } */
}
}
void
test_4 (const char *path, void *buf)
{
int fd = open (path, O_RDWR); /* { dg-message "\\(1\\) opened here" } */
if (fd >= 0)
{
close(fd); /* {dg-message "\\(2\\) closed here"} */
write(fd, buf, 1); /* { dg-warning "'write' on closed file descriptor 'fd'" } */
/* {dg-message "\\(3\\) 'write' on closed file descriptor 'fd'; 'close' was at \\(2\\)" "" {target *-*-*} .-1 } */
}
}
void
test_5 (const char *path)
{
int fd = open (path, O_RDWR);
close(fd);
printf("%d", fd); /* { dg-bogus "'printf' on a closed file descriptor 'fd'" } */
}
void
test_6 (const char *path, mode_t mode, void *buf)
{
int fd = creat (path, mode);
if (fd != -1)
{
read (fd, buf, 1); /* { dg-warning "'read' on write-only file descriptor 'fd'" } */
close(fd);
}
}
void
test_7 (const char *path, mode_t mode, void *buf)
{
int fd = creat (path, mode);
if (fd != -1)
{
write (fd, buf, 1);
close(fd);
}
}
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