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- /* Copyright (C) 1989, 1990, 1993 Aladdin Enterprises. All rights reserved.
-
- This file is part of Ghostscript.
-
- Ghostscript is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
- to anyone for the consequences of using it or for whether it serves any
- particular purpose or works at all, unless he says so in writing. Refer
- to the Ghostscript General Public License for full details.
-
- Everyone is granted permission to copy, modify and redistribute
- Ghostscript, but only under the conditions described in the Ghostscript
- General Public License. A copy of this license is supposed to have been
- given to you along with Ghostscript so you can know your rights and
- responsibilities. It should be in a file named COPYING. Among other
- things, the copyright notice and this notice must be preserved on all
- copies. */
-
- /* gsio.h */
- /* stdio redirection for Ghostscript library */
-
- /* Ghostscript never uses stdin/out/err directly. */
- extern FILE *gs_stdin, *gs_stdout, *gs_stderr;
-
- /* Redefine all the relevant stdio functions to use the above. */
- /* Some functions we make illegal, rather than redefining them. */
- #undef stdin
- #define stdin gs_stdin
- #undef stdout
- #define stdout gs_stdout
- #undef stderr
- #define stderr gs_stderr
- #undef fgetchar
- #define fgetchar() fgetc(stdin)
- #undef fputchar
- #define fputchar(c) fputc(c, stdout)
- #undef getchar
- #define getchar() getc(stdin)
- #undef gets
- #define gets Function._gets_.unavailable
- /* We should do something about perror, but since many Unix systems */
- /* don't provide the strerror function, we can't. (Neither the */
- /* Ghostscript kernel nor any Aladdin-maintained driver uses perror.) */
- #undef printf
- #define printf Function._printf_.unavailable
- #undef putchar
- #define putchar(c) fputc(c, stdout)
- #undef puts
- #define puts(s) (fputs(s, stdout), putchar('\n'))
- #undef scanf
- #define scanf Function._scanf_.unavailable
- #undef vprintf
- #define vprintf Function._vprintf_.unavailable
- #undef vscanf
- #define vscanf Function._vscanf_.unavailable
-