int main(int argc,char **argv)
{
int fd,n ;
char cmdstr[MAX_LEN];
while(1)
{
printf("shell>");
fflush(stdout);
memset(cmdstr,0,MAX_LEN * sizeof(char));
fd = read(0,cmdstr,MAX_LEN);
if(n = bulidin_command(cmdstr))
mysys(cmdstr);
}
return 0;
}
void
copy(int prompt, FILE *fin)
{
FILE *fout, *f;
char s[200], t[200], s1[200], *r, *tod;
char nm[100];
int *p;
time_t tval;
int nmatch = 0;
if (subdir[0] == 0)
snprintf(subdir, sizeof subdir, "%s/%s", _PATH_LLIB, sname);
for (;;) {
if (pgets(s, sizeof s, prompt, fin) == 0) {
if (fin == stdin) {
/* fprintf(stderr, "Don't type control-D\n"); */
/* this didn't work out very well */
wrapup(1); /* ian */
continue;
} else
break;
}
trim(s);
/* change the sequence %s to lesson directory */
/* if needed */
for (r = s; *r; r++)
if (*r == '%') {
snprintf(s1, sizeof s1, s,
subdir, subdir, subdir);
strlcpy(s, s1, sizeof s);
break;
}
r = wordb(s, t);
p = action(t);
/* some actions done only once per script */
if (p && *p == ONCE) {
if (wrong) { /* we are on 2nd time */
scopy(fin, NULL);
continue;
}
strlcpy(s, r, sizeof s);
r = wordb(s, t);
p = action(t);
}
if (p == 0) {
if (comfile >= 0) {
write(comfile, s, strlen(s));
write(comfile, "\n", 1);
}
else {
signal(SIGINT, SIG_IGN);
status = mysys(s);
signal(SIGINT, signal_intrpt);
}
if (incopy) {
fprintf(incopy, "%s\n", s);
strlcpy(last, s, sizeof last);
}
continue;
}
switch (*p) {
case READY:
if (incopy && r) {
fprintf(incopy, "%s\n", r);
strlcpy(last, r, sizeof last);
}
return;
case PRINT:
if (wrong)
scopy(fin, NULL); /* don't repeat msg */
else if (r)
list(r);
else
scopy(fin, stdout);
break;
case NOP:
break;
case MATCH:
if (nmatch > 0) /* we have already passed */
scopy(fin, NULL);
/* did we pass this time? */
else if ((status = strcmp(r, last)) == 0) {
nmatch++;
scopy(fin, stdout);
} else
scopy(fin, NULL);
break;
case BAD:
if (strcmp(r, last) == 0)
scopy(fin, stdout);
else
scopy(fin, NULL);
break;
case SUCCEED:
scopy(fin, (status == 0) ? stdout : NULL);
break;
case FAIL:
scopy(fin, (status != 0) ? stdout : NULL);
break;
case CREATE:
fout = fopen(r, "w");
scopy(fin, fout);
fclose(fout);
break;
case CMP:
status = cmp(r); /* contains two file names */
break;
case MV:
snprintf(nm, sizeof nm, "%s/L%s.%s", subdir, todo, r);
fcopy(r, nm);
break;
case USER:
case NEXT:
more = 1;
return;
case COPYIN:
incopy = fopen(".copy", "w");
break;
case UNCOPIN:
fclose(incopy);
incopy = NULL;
break;
case COPYOUT:
maktee();
break;
case UNCOPOUT:
untee();
break;
case PIPE:
comfile = makpipe();
break;
case UNPIPE:
close(comfile);
wait(0);
comfile = -1;
break;
case YES:
case NO:
if (incopy) {
fprintf(incopy, "%s\n", s);
strlcpy(last, s, sizeof last);
}
return;
case WHERE:
printf("You are in lesson %s\n", todo);
fflush(stdout);
break;
case BYE:
more = 0;
return;
case CHDIR:
printf("cd not allowed\n");
fflush(stdout);
break;
case LEARN:
printf("You are already in learn.\n");
fflush(stdout);
break;
case LOG:
if (!logging)
break;
if (logfile[0] == 0) {
snprintf(logfile, sizeof logfile,
"%s/log/%s", direct, sname);
}
f = fopen((r ? r : logfile), "a");
if (f == NULL)
break;
time(&tval);
tod = ctime(&tval);
tod[24] = 0;
fprintf(f, "%s L%-6s %s %2d %s\n", tod,
todo, status? "fail" : "pass", speed, pwline);
fclose(f);
break;
}
}
return;
}
