home *** CD-ROM | disk | FTP | other *** search
- #ifndef lint
- static char *RCSid = "$Id: corplot.c,v 1.2 1998/10/28 21:08:12 lhecking Exp $";
- #endif
-
- /* GNUPLOT - corplot.c */
-
- /*[
- * Copyright 1986 - 1993, 1998 Thomas Williams, Colin Kelley
- *
- * Permission to use, copy, and distribute this software and its
- * documentation for any purpose with or without fee is hereby granted,
- * provided that the above copyright notice appear in all copies and
- * that both that copyright notice and this permission notice appear
- * in supporting documentation.
- *
- * Permission to modify the software is granted, but not the right to
- * distribute the complete modified source code. Modifications are to
- * be distributed as patches to the released version. Permission to
- * distribute binaries produced by compiling modified sources is granted,
- * provided you
- * 1. distribute the corresponding source modifications from the
- * released version in the form of a patch file along with the binaries,
- * 2. add special version identification to distinguish your version
- * in addition to the base release version number,
- * 3. provide your name and address as the primary contact for the
- * support of your modified version, and
- * 4. retain our contact information in regard to use of the base
- * software.
- * Permission to distribute the released version of the source code along
- * with corresponding source modifications in the form of a patch file is
- * granted with same provisions 2 through 4 for binary distributions.
- *
- * This software is provided "as is" without express or implied warranty
- * to the extent permitted by applicable law.
- ]*/
-
-
- #include <stdio.h>
- #include <process.h>
- #include <dos.h>
- #if (defined(ATARI) || defined(MTOS)) && defined(__PUREC__)
- #include <plot.h>
- #endif
-
- #define BOUNDARY 32768
- #define segment(addr) (FP_SEG(m) + ((FP_OFF(m)+15) >> 4));
- #define round(value,boundary) (((value) + (boundary) - 1) & ~((boundary) - 1))
-
- char *malloc(),*realloc();
-
- char prog[] = "gnuplot";
- char corscreen[] = "CORSCREEN=0";
-
- main()
- {
- register unsigned int segm,start;
- char *m;
- if (!(m = malloc(BOUNDARY))) {
- printf("malloc() failed\n");
- exit(1);
- }
- segm = segment(m);
- start = round(segm,BOUNDARY/16);
-
- if (realloc(m,BOUNDARY+(start-segm)*16) != m) {
- printf("can't realloc() memory\n");
- exit(2);
- }
-
- if ((segm = start >> 11) >= 8) {
- printf("not enough room in first 256K\n");
- exit(3);
- }
-
- corscreen[sizeof(corscreen)-2] = '0' + segm;
- if (putenv(corscreen))
- perror("putenv");
-
- if (spawnlp(P_WAIT,prog,prog,NULL))
- perror("spawnlp");
- }
-