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- /* Copyright (C) 2000 Aladdin Enterprises. All rights reserved.
-
- This file is part of AFPL Ghostscript.
-
- AFPL Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author or
- distributor accepts any responsibility for the consequences of using it, or
- for whether it serves any particular purpose or works at all, unless he or
- she says so in writing. Refer to the Aladdin Free Public License (the
- "License") for full details.
-
- Every copy of AFPL Ghostscript must include a copy of the License, normally
- in a plain ASCII text file named PUBLIC. The License grants you the right
- to copy, modify and redistribute AFPL Ghostscript, but only under certain
- conditions described in the License. Among other things, the License
- requires that the copyright notice and this notice be preserved on all
- copies.
- */
-
- /*$Id: gsiodevs.c,v 1.2 2000/09/19 19:00:29 lpd Exp $ */
- /* %stdxxx IODevice implementation for non-PostScript configurations */
- #include "gx.h"
- #include "gserrors.h"
- #include "gxiodev.h"
- #include "stream.h"
- #include "strimpl.h"
-
- const char iodev_dtype_stdio[] = "Special";
- #define iodev_stdio(dname, open) {\
- dname, iodev_dtype_stdio,\
- { iodev_no_init, open, iodev_no_open_file,\
- iodev_no_fopen, iodev_no_fclose,\
- iodev_no_delete_file, iodev_no_rename_file, iodev_no_file_status,\
- iodev_no_enumerate_files, NULL, NULL,\
- iodev_no_get_params, iodev_no_put_params\
- }\
- }
-
- #define STDIO_BUF_SIZE 128
- private int
- stdio_close_file(stream *s)
- {
- /* Don't close stdio files, but do free the buffer. */
- gs_memory_t *mem = s->memory;
-
- s->file = 0;
- gs_free_object(mem, s->cbuf, "stdio_close_file(buffer)");
- return 0;
- }
- private int
- stdio_open(gx_io_device * iodev, const char *access, stream ** ps,
- gs_memory_t * mem, char rw, FILE *file,
- void (*srw_file)(P4(stream *, FILE *, byte *, uint)))
- {
- stream *s;
- byte *buf;
-
- if (!streq1(access, rw))
- return_error(gs_error_invalidfileaccess);
- s = s_alloc(mem, "stdio_open(stream)");
- buf = gs_alloc_bytes(mem, STDIO_BUF_SIZE, "stdio_open(buffer)");
- if (s == 0 || buf == 0) {
- gs_free_object(mem, buf, "stdio_open(buffer)");
- gs_free_object(mem, s, "stdio_open(stream)");
- return_error(gs_error_VMerror);
- }
- srw_file(s, file, buf, STDIO_BUF_SIZE);
- s->procs.close = stdio_close_file;
- *ps = s;
- return 0;
- }
-
- private int
- stdin_open(gx_io_device * iodev, const char *access, stream ** ps,
- gs_memory_t * mem)
- {
- return stdio_open(iodev, access, ps, mem, 'r', gs_stdin, sread_file);
- }
- const gx_io_device gs_iodev_stdin = iodev_stdio("%stdin%", stdin_open);
-
- private int
- stdout_open(gx_io_device * iodev, const char *access, stream ** ps,
- gs_memory_t * mem)
- {
- return stdio_open(iodev, access, ps, mem, 'w', gs_stdout, swrite_file);
- }
- const gx_io_device gs_iodev_stdout = iodev_stdio("%stdout%", stdout_open);
-
- private int
- stderr_open(gx_io_device * iodev, const char *access, stream ** ps,
- gs_memory_t * mem)
- {
- return stdio_open(iodev, access, ps, mem, 'w', gs_stderr, swrite_file);
- }
- const gx_io_device gs_iodev_stderr = iodev_stdio("%stderr%", stderr_open);
-