[unix-history] / usr / src / cmd / learn / learn.c

#include "stdio.h"
#include "lrndef"
#include "lrnref"
#include "signal.h"

main(argc,argv)
char *argv[];
{
	extern hangup(), intrpt();
	extern char * getlogin();
	char *malloc();

	speed = 0;
	more = 1;
	pwline = getlogin();
	setbuf(stdout, malloc(BUFSIZ));
	selsub(argc, argv);
	signal(SIGHUP, hangup);
	signal(SIGINT, intrpt);
	while (more) {
		selunit();
		dounit();
		whatnow();
	}
	wrapup(0);
}

hangup()
{
	wrapup(1);
}

intrpt()
{
	char response[20], *p;

	signal(SIGINT, hangup);
	write(2, "\nInterrupt.\nWant to go on?  ", 28);
	p = response;
	*p = 'n';
	while (read(0, p, 1) == 1 && *p != '\n')
		p++;
	if (response[0] != 'y')
		wrapup(1);
	ungetc('\n', stdin);
	signal(SIGINT, intrpt);
}
Commit	Line	Data
bbddffb1 TL	1	#include "stdio.h"
	2	#include "lrndef"
	3	#include "lrnref"
	4	#include "signal.h"
	5
	6	main(argc,argv)
	7	char *argv[];
	8	{
	9	extern hangup(), intrpt();
	10	extern char * getlogin();
	11	char *malloc();
	12
	13	speed = 0;
	14	more = 1;
	15	pwline = getlogin();
	16	setbuf(stdout, malloc(BUFSIZ));
	17	selsub(argc, argv);
	18	signal(SIGHUP, hangup);
	19	signal(SIGINT, intrpt);
	20	while (more) {
	21	selunit();
	22	dounit();
	23	whatnow();
	24	}
	25	wrapup(0);
	26	}
	27
	28	hangup()
	29	{
	30	wrapup(1);
	31	}
	32
	33	intrpt()
	34	{
	35	char response[20], *p;
	36
	37	signal(SIGINT, hangup);
	38	write(2, "\nInterrupt.\nWant to go on? ", 28);
	39	p = response;
	40	*p = 'n';
	41	while (read(0, p, 1) == 1 && *p != '\n')
	42	p++;
	43	if (response[0] != 'y')
	44	wrapup(1);
	45	ungetc('\n', stdin);
	46	signal(SIGINT, intrpt);
	47	}