int main(void)
{
static unsigned x;
initprg();
initgame();
clrscr();
printf("Alpha test AR-Chess V 1.0\n"
"Copyright November 30, 1992\n"
"\nMr. Carey Bloodworth\n"
"\nThis program may be freely\n"
"copied and modified as long\n"
"as my name is present as the\n"
"original author.\n"
"Sharp 7xx port: A.R. Pruss");
ozdelay64hz(200);
/* ozsendscreen(); */
while (! quit)
{
if ( /* (breakpress) || */ (draw) || (mate) ||
((tomove==human) && (!bothsides)) ) inputcommand();
printboard();
/* if (pvsflag)
{
currow=7;
atright();
printf(pvsmsg);
} */
if (status[0])
{
currow=8;
atright();
printf(status);
}
currow=6;
atright();
printf(msg);
if (! (quit || mate || draw)) selectmove(tomove);
/* if (! breakpress) */ tomove=chngcolor(tomove);
};
endprg();
return 0;
}
int execute_builtin(char** Newargs, int newSize, struct Status *newStatus)
{
char dir[100];
int i, exitval;
//Check arguments for I/O redirection symbols. Execute I/O redirection function if symbols are found.
for(i = 0; i < newSize; i++)
{
if (strcmp(Newargs[i], ">") == 0)
{
//call function output
outputcommand(Newargs, newStatus, i, newSize);
return 0;
}
else if (strcmp(Newargs[i], "<") == 0)
{
//call function input
inputcommand(Newargs, newStatus, i, newSize);
return 0;
}
}
//Check and execute built in commands: cd, exit, status. Check for comments: "#"
if(strcmp(Newargs[0], "cd") == 0)
{
if(Newargs[1] == NULL)
{
chdir(getenv("HOME"));
}
else
{
getcwd(dir, sizeof(dir));
strcat(dir, "/");
strcat(dir, Newargs[1]);
if(chdir(dir) == -1)
{
perror("smallsh");
return 1;
}
}
return 0;
}
//Exit smallsh if exit command is entered (exit or Exit).
else if(strcmp(Newargs[0], "exit") == 0 || strcmp(Newargs[0], "Exit") == 0)
{
exit(EXIT_SUCCESS);
}
//Check and print exit status or terminating signal
else if(strcmp(Newargs[0], "status") == 0)
{
checkstatus(newStatus);
return 0;
}
//Return if the line is a comment "#".
else if(strcmp(Newargs[0], "#") == 0)
{
return 0;
}
//Execute commands by starting and running a new process via fork() and execvp().
else exitval = execute_command(Newargs, newSize, newStatus);
return exitval;
}
