CS318 - Pintos
Pintos source browser for JHU CS318 course
dir-open.c
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1 /** Opens a directory, then tries to write to it, which must
2  fail. */
3 
4 #include <syscall.h>
5 #include "tests/lib.h"
6 #include "tests/main.h"
7 
8 void
9 test_main (void)
10 {
11  int fd;
12  int retval;
13 
14  CHECK (mkdir ("xyzzy"), "mkdir \"xyzzy\"");
15  CHECK ((fd = open ("xyzzy")) > 1, "open \"xyzzy\"");
16 
17  msg ("write \"xyzzy\"");
18  retval = write (fd, "foobar", 6);
19  CHECK (retval == -1,
20  "write \"xyzzy\" (must return -1, actually %d)", retval);
21 }
lib.h
write
int write(int fd, const void *buffer, unsigned size)
Definition: syscall.c:121
CHECK
#define CHECK(SUCCESS,...)
Takes an expression to test for SUCCESS and a message, which may include printf-style arguments.
Definition: lib.h:29
test_main
void test_main(void)
Opens a directory, then tries to write to it, which must fail.
Definition: dir-open.c:9
mkdir
bool mkdir(const char *dir)
Definition: syscall.c:163
open
int open(const char *file)
Definition: syscall.c:103
main.h
msg
void msg(const char *format,...)
Definition: lib.c:28
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