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* path.cc (symlink): Check arguments for validity.

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(getcwd): Ditto.
* syscalls.cc (ftruncate): Ditto.
* times.cc (times): Ditto.
* uname.cc (uname): Ditto.
This commit is contained in:
Egor Duda
2001-09-16 14:26:11 +00:00
parent d595839939
commit 0aca521ab8
5 changed files with 39 additions and 13 deletions
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31
winsup/cygwin/path.cc
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@@ -2399,6 +2399,19 @@ symlink (const char *topath, const char *frompath)
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)
{
@@ -2415,17 +2428,6 @@ symlink (const char *topath, const char *frompath)
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)
{
@@ -2984,7 +2986,12 @@ hashit:
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? */