+2001-09-16 Egor Duda <deo@logos-m.ru>
+
+ * path.cc (symlink): Check arguments for validity.
+ (getcwd): Ditto.
+ * syscalls.cc (ftruncate): Ditto.
+ * times.cc (times): Ditto.
+ * uname.cc (uname): Ditto.
+
Sat Sep 15 22:54:49 2001 Christopher Faylor <cgf@cygnus.com>
* net.cc (dup_servent_ptr): Detect old Windows 95 misaligned structure
DWORD written;
SECURITY_ATTRIBUTES sa = sec_none_nih;
+ /* POSIX says that empty 'frompath' is invalid input whlie empty
+ 'topath' is valid -- it's symlink resolver job to verify if
+ symlink contents point to existing filesystem object */
+ if (check_null_empty_str_errno (topath) == EFAULT ||
+ check_null_empty_str_errno (frompath))
+ goto done;
+
+ if (strlen (topath) >= MAX_PATH)
+ {
+ set_errno (ENAMETOOLONG);
+ goto done;
+ }
+
win32_path.check (frompath, PC_SYM_NOFOLLOW);
if (allow_winsymlinks && !win32_path.error)
{
syscall_printf ("symlink (%s, %s)", topath, win32_path.get_win32 ());
- if (topath[0] == 0)
- {
- set_errno (EINVAL);
- goto done;
- }
- if (strlen (topath) >= MAX_PATH)
- {
- set_errno (ENAMETOOLONG);
- goto done;
- }
-
if (win32_path.is_device () ||
win32_path.file_attributes () != (DWORD) -1)
{
char *
getcwd (char *buf, size_t ulen)
{
- return cygheap->cwd.get (buf, 1, 1, ulen);
+ char* res = NULL;
+ if (ulen == 0)
+ set_errno (EINVAL);
+ else if (!__check_null_invalid_struct_errno (buf, ulen))
+ res = cygheap->cwd.get (buf, 1, 1, ulen);
+ return res;
}
/* getwd: standards? */
{
FILETIME creation_time, exit_time, kernel_time, user_time;
+ if (check_null_invalid_struct_errno (buf))
+ return ((clock_t) -1);
+
DWORD ticks = GetTickCount ();
/* Ticks is in milliseconds, convert to our ticks. Use long long to prevent
overflow. */
{
DWORD len;
SYSTEM_INFO sysinfo;
+
+ if (check_null_invalid_struct_errno (name))
+ return -1;
+
char *snp = strstr (cygwin_version.dll_build_date, "SNP");
memset (name, 0, sizeof (*name));