/* Parse a real (non-device) file name and convert to a C string. */
int
gs_parse_real_file_name(gs_parsed_file_name_t * pfn, const char *pname,
uint len, gs_memory_t *mem, client_name_t cname)
{
int code = gs_parse_file_name(pfn, pname, len);
if (code < 0)
return code;
if (pfn->len == 0)
return_error(gs_error_invalidfileaccess); /* device only */
return gs_terminate_file_name(pfn, mem, cname);
}
/* Parse a real (non-device) file name and convert to a C string. */
int
gs_parse_real_file_name(gs_parsed_file_name_t * pfn, const char *pname,
uint len, gs_memory_t *mem, client_name_t cname)
{
int code = gs_parse_file_name(pfn, pname, len, mem);
if (code < 0)
return code;
if (pfn->len == 0) /* device only */
return_error(gs_error_undefinedfilename); /* for CET 23-23.ps */
return gs_terminate_file_name(pfn, mem, cname);
}
/* <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);
}
}
