int main(int argc, char* argv []) {
if (argc!=2) {
std::cout<<"Usage : linecnt text_file \n\n";
return -1;
};
int line=linecnt(argv[1]);
std::cout<<line<<"\n";
};
int
main(int argc, char **argv)
{
bool newrc, already;
int rcfirst = 0; /* first message to print (from .rc) */
int rcback = 0; /* amount to back off of rcfirst */
int firstmsg = 0, nextmsg = 0, lastmsg = 0;
int blast = 0;
struct stat buf; /* stat to check access of bounds */
FILE *bounds;
#ifdef UNBUFFERED
setbuf(stdout, NULL);
#endif
setlocale(LC_ALL, "");
time(&t);
setuid(uid = getuid());
ruptible = (signal(SIGINT, SIG_IGN) == SIG_DFL);
if (ruptible)
signal(SIGINT, SIG_DFL);
argc--, argv++;
while (argc > 0) {
if (isdigit(argv[0][0])) { /* starting message # */
rcfirst = atoi(argv[0]);
}
else if (isdigit(argv[0][1])) { /* backward offset */
rcback = atoi( &( argv[0][1] ) );
}
else {
ptr = *argv;
while (*ptr) switch (*ptr++) {
case '-':
break;
case 'c':
if (uid != SUPERUSER && uid != DAEMON) {
fprintf(stderr, "Sorry\n");
exit(1);
}
clean = YES;
break;
case 'f': /* silently */
hush = YES;
break;
case 'h': /* headers only */
hdrs = YES;
break;
case 'l': /* local msgs only */
locomode = YES;
break;
case 'o': /* option to save last message */
lastcmd = YES;
break;
case 'p': /* pipe thru 'more' during long msgs */
use_pager = YES;
break;
case 'q': /* query only */
qopt = YES;
break;
case 's': /* sending TO msgs */
send_msg = YES;
break;
default:
usage();
}
}
argc--, argv++;
}
/*
* determine current message bounds
*/
snprintf(fname, sizeof(fname), "%s/%s", _PATH_MSGS, BOUNDS);
/*
* Test access rights to the bounds file
* This can be a little tricky. if(send_msg), then
* we will create it. We assume that if(send_msg),
* then you have write permission there.
* Else, it better be there, or we bail.
*/
if (send_msg != YES) {
if (stat(fname, &buf) < 0) {
if (hush != YES) {
err(errno, "%s", fname);
} else {
exit(1);
}
}
}
bounds = fopen(fname, "r");
if (bounds != NULL) {
fscanf(bounds, "%d %d\n", &firstmsg, &lastmsg);
fclose(bounds);
blast = lastmsg; /* save upper bound */
}
if (clean)
keep = t - (rcback? rcback : NDAYS) DAYS;
if (clean || bounds == NULL) { /* relocate message bounds */
struct dirent *dp;
struct stat stbuf;
bool seenany = NO;
DIR *dirp;
dirp = opendir(_PATH_MSGS);
if (dirp == NULL)
err(errno, "%s", _PATH_MSGS);
firstmsg = 32767;
lastmsg = 0;
for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp)){
char *cp = dp->d_name;
int i = 0;
if (dp->d_ino == 0)
continue;
if (clean)
snprintf(inbuf, sizeof(inbuf), "%s/%s", _PATH_MSGS, cp);
while (isdigit(*cp))
i = i * 10 + *cp++ - '0';
if (*cp)
continue; /* not a message! */
if (clean) {
if (stat(inbuf, &stbuf) != 0)
continue;
if (stbuf.st_mtime < keep
&& stbuf.st_mode&S_IWRITE) {
unlink(inbuf);
continue;
}
}
if (i > lastmsg)
lastmsg = i;
if (i < firstmsg)
firstmsg = i;
seenany = YES;
}
closedir(dirp);
if (!seenany) {
if (blast != 0) /* never lower the upper bound! */
lastmsg = blast;
firstmsg = lastmsg + 1;
}
else if (blast > lastmsg)
lastmsg = blast;
if (!send_msg) {
bounds = fopen(fname, "w");
if (bounds == NULL)
err(errno, "%s", fname);
chmod(fname, CMODE);
fprintf(bounds, "%d %d\n", firstmsg, lastmsg);
fclose(bounds);
}
}
if (send_msg) {
/*
* Send mode - place msgs in _PATH_MSGS
*/
bounds = fopen(fname, "w");
if (bounds == NULL)
err(errno, "%s", fname);
nextmsg = lastmsg + 1;
snprintf(fname, sizeof(fname), "%s/%d", _PATH_MSGS, nextmsg);
newmsg = fopen(fname, "w");
if (newmsg == NULL)
err(errno, "%s", fname);
chmod(fname, CMODE);
fprintf(bounds, "%d %d\n", firstmsg, nextmsg);
fclose(bounds);
sending = YES;
if (ruptible)
signal(SIGINT, onintr);
if (isatty(fileno(stdin))) {
ptr = getpwuid(uid)->pw_name;
printf("Message %d:\nFrom %s %sSubject: ",
nextmsg, ptr, ctime(&t));
fflush(stdout);
fgets(inbuf, sizeof inbuf, stdin);
putchar('\n');
fflush(stdout);
fprintf(newmsg, "From %s %sSubject: %s\n",
ptr, ctime(&t), inbuf);
blankline = seensubj = YES;
}
else
blankline = seensubj = NO;
for (;;) {
fgets(inbuf, sizeof inbuf, stdin);
if (feof(stdin) || ferror(stdin))
break;
blankline = (blankline || (inbuf[0] == '\n'));
seensubj = (seensubj || (!blankline && (strncmp(inbuf, "Subj", 4) == 0)));
fputs(inbuf, newmsg);
}
#ifdef OBJECT
if (!seensubj) {
printf("NOTICE: Messages should have a Subject field!\n");
#ifdef REJECT
unlink(fname);
#endif
exit(1);
}
#endif
exit(ferror(stdin));
}
if (clean)
exit(0);
/*
* prepare to display messages
*/
totty = (isatty(fileno(stdout)) != 0);
use_pager = use_pager && totty;
snprintf(fname, sizeof(fname), "%s/%s", getenv("HOME"), MSGSRC);
msgsrc = fopen(fname, "r");
if (msgsrc) {
newrc = NO;
fscanf(msgsrc, "%d\n", &nextmsg);
fclose(msgsrc);
if (nextmsg > lastmsg+1) {
printf("Warning: bounds have been reset (%d, %d)\n",
firstmsg, lastmsg);
truncate(fname, (off_t)0);
newrc = YES;
}
else if (!rcfirst)
rcfirst = nextmsg - rcback;
}
else
newrc = YES;
msgsrc = fopen(fname, "r+");
if (msgsrc == NULL)
msgsrc = fopen(fname, "w");
if (msgsrc == NULL)
err(errno, "%s", fname);
if (rcfirst) {
if (rcfirst > lastmsg+1) {
printf("Warning: the last message is number %d.\n",
lastmsg);
rcfirst = nextmsg;
}
if (rcfirst > firstmsg)
firstmsg = rcfirst; /* don't set below first msg */
}
if (newrc) {
nextmsg = firstmsg;
fseek(msgsrc, 0L, 0);
fprintf(msgsrc, "%d\n", nextmsg);
fflush(msgsrc);
}
#ifdef V7
if (totty) {
struct winsize win;
if (ioctl(fileno(stdout), TIOCGWINSZ, &win) != -1)
Lpp = win.ws_row;
if (Lpp <= 0) {
if (tgetent(inbuf, getenv("TERM")) <= 0
|| (Lpp = tgetnum("li")) <= 0) {
Lpp = NLINES;
}
}
}
#endif
Lpp -= 6; /* for headers, etc. */
already = NO;
prevmsg = firstmsg;
printing = YES;
if (ruptible)
signal(SIGINT, onintr);
/*
* Main program loop
*/
for (msg = firstmsg; msg <= lastmsg; msg++) {
snprintf(fname, sizeof(fname), "%s/%d", _PATH_MSGS, msg);
newmsg = fopen(fname, "r");
if (newmsg == NULL)
continue;
gfrsub(newmsg); /* get From and Subject fields */
if (locomode && !local) {
fclose(newmsg);
continue;
}
if (qopt) { /* This has to be located here */
printf("There are new messages.\n");
exit(0);
}
if (already && !hdrs)
putchar('\n');
/*
* Print header
*/
if (totty)
signal(SIGTSTP, onsusp);
(void) setjmp(tstpbuf);
already = YES;
nlines = 2;
if (seenfrom) {
printf("Message %d:\nFrom %s %s", msg, from, date);
nlines++;
}
if (seensubj) {
printf("Subject: %s", subj);
nlines++;
}
else {
if (seenfrom) {
putchar('\n');
nlines++;
}
while (nlines < 6
&& fgets(inbuf, sizeof inbuf, newmsg)
&& inbuf[0] != '\n') {
fputs(inbuf, stdout);
nlines++;
}
}
lct = linecnt(newmsg);
if (lct)
printf("(%d%sline%s) ", lct, seensubj? " " : " more ",
(lct == 1) ? "" : "s");
if (hdrs) {
printf("\n-----\n");
fclose(newmsg);
continue;
}
/*
* Ask user for command
*/
if (totty)
ask(lct? MORE : (msg==lastmsg? NOMORE : NEXT));
else
inbuf[0] = 'y';
if (totty)
signal(SIGTSTP, SIG_DFL);
cmnd:
in = inbuf;
switch (*in) {
case 'x':
case 'X':
exit(0);
case 'q':
case 'Q':
quitit = YES;
printf("--Postponed--\n");
exit(0);
/* intentional fall-thru */
case 'n':
case 'N':
if (msg >= nextmsg) sep = "Flushed";
prevmsg = msg;
break;
case 'p':
case 'P':
use_pager = (*in++ == 'p');
/* intentional fallthru */
case '\n':
case 'y':
default:
if (*in == '-') {
msg = prevmsg-1;
sep = "replay";
break;
}
if (isdigit(*in)) {
msg = next(in);
sep = in;
break;
}
prmesg(nlines + lct + (seensubj? 1 : 0));
prevmsg = msg;
}
printf("--%s--\n", sep);
sep = "-";
if (msg >= nextmsg) {
nextmsg = msg + 1;
fseek(msgsrc, 0L, 0);
fprintf(msgsrc, "%d\n", nextmsg);
fflush(msgsrc);
}
if (newmsg)
fclose(newmsg);
if (quitit)
break;
}
/*
* Make sure .rc file gets updated
*/
if (--msg >= nextmsg) {
nextmsg = msg + 1;
fseek(msgsrc, 0L, 0);
fprintf(msgsrc, "%d\n", nextmsg);
fflush(msgsrc);
}
if (already && !quitit && lastcmd && totty) {
/*
* save or reply to last message?
*/
msg = prevmsg;
ask(NOMORE);
if (inbuf[0] == '-' || isdigit(inbuf[0]))
goto cmnd;
}
if (!(already || hush || qopt))
printf("No new messages.\n");
exit(0);
}
