/* <string1> <string2> renamefile - */
static int
zrenamefile(i_ctx_t *i_ctx_p)
{
int code;
os_ptr op = osp;
gs_parsed_file_name_t pname1, pname2;
code = parse_real_file_name(op, &pname2, imemory, "renamefile(to)");
if (code < 0)
return code;
pname1.fname = 0;
code = parse_real_file_name(op - 1, &pname1, imemory, "renamefile(from)");
if (code >= 0) {
gx_io_device *iodev_dflt = iodev_default(imemory);
if (pname1.iodev != pname2.iodev ) {
if (pname1.iodev == iodev_dflt)
pname1.iodev = pname2.iodev;
if (pname2.iodev == iodev_dflt)
pname2.iodev = pname1.iodev;
}
if (pname1.iodev != pname2.iodev ||
(pname1.iodev == iodev_dflt &&
/*
* We require FileControl permissions on the source path
* unless it is a temporary file. Also, we require FileControl
* and FileWriting permissions to the destination file/path.
*/
((check_file_permissions(i_ctx_p, pname1.fname, pname1.len,
"PermitFileControl") < 0 &&
!file_is_tempfile(i_ctx_p, op[-1].value.bytes, r_size(op - 1))) ||
(check_file_permissions(i_ctx_p, pname2.fname, pname2.len,
"PermitFileControl") < 0 ||
check_file_permissions(i_ctx_p, pname2.fname, pname2.len,
"PermitFileWriting") < 0 )))) {
code = gs_note_error(e_invalidfileaccess);
} else {
code = (*pname1.iodev->procs.rename_file)(pname1.iodev,
pname1.fname, pname2.fname);
}
}
gs_free_file_name(&pname2, "renamefile(to)");
gs_free_file_name(&pname1, "renamefile(from)");
if (code < 0)
return code;
pop(2);
return 0;
}
/* <string> deletefile - */
static int
zdeletefile(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
gs_parsed_file_name_t pname;
int code = parse_real_file_name(op, &pname, imemory, "deletefile");
if (code < 0)
return code;
if (pname.iodev == iodev_default) {
if ((code = check_file_permissions(i_ctx_p, pname.fname, pname.len,
"PermitFileControl")) < 0 &&
!file_is_tempfile(i_ctx_p, op->value.bytes, r_size(op))) {
return code;
}
}
code = (*pname.iodev->procs.delete_file)(pname.iodev, pname.fname);
gs_free_file_name(&pname, "deletefile");
if (code < 0)
return code;
pop(1);
return 0;
}
/* <string> status false */
static int
zstatus(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
switch (r_type(op)) {
case t_file:
{
stream *s;
make_bool(op, (file_is_valid(s, op) ? 1 : 0));
}
return 0;
case t_string:
{
gs_parsed_file_name_t pname;
struct stat fstat;
int code = parse_file_name(op, &pname, i_ctx_p->LockFilePermissions);
if (code < 0)
return code;
code = gs_terminate_file_name(&pname, imemory, "status");
if (code < 0)
return code;
code = (*pname.iodev->procs.file_status)(pname.iodev,
pname.fname, &fstat);
switch (code) {
case 0:
check_ostack(4);
/*
* Check to make sure that the file size fits into
* a PostScript integer. (On some systems, long is
* 32 bits, but file sizes are 64 bits.)
*/
push(4);
make_int(op - 4, stat_blocks(&fstat));
make_int(op - 3, fstat.st_size);
/*
* We can't check the value simply by using ==,
* because signed/unsigned == does the wrong thing.
* Instead, since integer assignment only keeps the
* bottom bits, we convert the values to double
* and then test for equality. This handles all
* cases of signed/unsigned or width mismatch.
*/
if ((double)op[-4].value.intval !=
(double)stat_blocks(&fstat) ||
(double)op[-3].value.intval !=
(double)fstat.st_size
)
return_error(e_limitcheck);
make_int(op - 2, fstat.st_mtime);
make_int(op - 1, fstat.st_ctime);
make_bool(op, 1);
break;
case e_undefinedfilename:
make_bool(op, 0);
code = 0;
}
gs_free_file_name(&pname, "status");
return code;
}
default:
return_op_typecheck(op);
}
}
