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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <signal.h>
#include <setjmp.h>
#include "atari.h"
#include "prompts.h"
static char *rcsid = "$Id: configure.c,v 1.20 1998/02/21 14:56:45 david Exp $";
jmp_buf jmpbuf;
void bus_err()
{
longjmp(jmpbuf, 1);
}
int unaligned_long_ok()
{
#ifdef DJGPP
return 1;
#else
long l[2];
if (setjmp(jmpbuf) == 0) {
signal(SIGBUS, bus_err);
*((long *) ((char *) l + 1)) = 1;
signal(SIGBUS, SIG_DFL);
return 1;
}
else {
signal(SIGBUS, SIG_DFL);
return 0;
}
#endif
}
int main(void)
{
FILE *fp;
char config_filename[256];
char *home;
char config_version[256];
char linux_joystick = 'N';
char joymouse = 'N';
char voxware = 'N';
int allow_unaligned_long = 0;
home = getenv("~");
if (!home)
home = getenv("HOME");
if (!home)
home = ".";
#ifndef DJGPP
sprintf(config_filename, "%s/.atari800", home);
#else
sprintf(config_filename, "%s/atari800.djgpp", home);
#endif
fp = fopen(config_filename, "r");
if (fp) {
printf("\nReading: %s\n\n", config_filename);
fgets(config_version, 256, fp);
RemoveLF(config_version);
if (strcmp(ATARI_TITLE, config_version) == 0) {
if (fscanf(fp, "\n%c", &linux_joystick) == 0)
linux_joystick = 'N';
if (fscanf(fp, "\n%c", &joymouse) == 0)
joymouse = 'N';
if (fscanf(fp, "\n%c\n", &voxware) == 0)
voxware = 'N';
}
else {
printf("Cannot use this configuration file\n");
}
fclose(fp);
}
YesNo("Enable LINUX Joystick [%c] ", &linux_joystick);
YesNo("Support for Toshiba Joystick Mouse (Linux SVGALIB Only) [%c] ", &joymouse);
YesNo("Enable Voxware Sound Support (Linux) [%c] ", &voxware);
printf("Testing unaligned long accesses...");
if ((allow_unaligned_long = unaligned_long_ok())) {
printf("OK\n");
}
else {
printf("not OK\n");
}
fp = fopen("config.h", "w");
if (fp) {
fprintf(fp, "#ifndef __CONFIG__\n");
fprintf(fp, "#define __CONFIG__\n");
if (linux_joystick == 'Y')
fprintf(fp, "#define LINUX_JOYSTICK\n");
if (joymouse == 'Y')
fprintf(fp, "#define JOYMOUSE\n");
if (voxware == 'Y')
fprintf(fp, "#define VOXWARE\n");
if (allow_unaligned_long == 1)
fprintf(fp, "#define UNALIGNED_LONG_OK\n");
fprintf(fp, "#endif\n");
fclose(fp);
}
fp = fopen(config_filename, "w");
if (fp) {
printf("\nWriting: %s\n\n", config_filename);
fprintf(fp, "%s\n", ATARI_TITLE);
fprintf(fp, "%c\n", linux_joystick);
fprintf(fp, "%c\n", joymouse);
fprintf(fp, "%c\n", voxware);
fclose(fp);
}
else {
perror(config_filename);
exit(1);
}
return 0;
}
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