[unix-history] / usr / src / usr.bin / mail / cmd1.c

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#ifndef lint
static char *sccsid = "@(#)cmd1.c	5.3 (Berkeley) %G%";
#endif not lint

#include "rcv.h"
#include <sys/stat.h>

/*
 * Mail -- a mail program
 *
 * User commands.
 */

/*
 * Print the current active headings.
 * Don't change dot if invoker didn't give an argument.
 */

static int screen;

headers(msgvec)
	int *msgvec;
{
	register int n, mesg, flag;
	register struct message *mp;
	int size;

	size = screensize();
	n = msgvec[0];
	if (n != 0)
		screen = (n-1)/size;
	if (screen < 0)
		screen = 0;
	mp = &message[screen * size];
	if (mp >= &message[msgCount])
		mp = &message[msgCount - size];
	if (mp < &message[0])
		mp = &message[0];
	flag = 0;
	mesg = mp - &message[0];
	if (dot != &message[n-1])
		dot = mp;
	for (; mp < &message[msgCount]; mp++) {
		mesg++;
		if (mp->m_flag & MDELETED)
			continue;
		if (flag++ >= size)
			break;
		printhead(mesg);
		sreset();
	}
	if (flag == 0) {
		printf("No more mail.\n");
		return(1);
	}
	return(0);
}

/*
 * Set the list of alternate names for out host.
 */
local(namelist)
	char **namelist;
{
	register int c;
	register char **ap, **ap2, *cp;

	c = argcount(namelist) + 1;
	if (c == 1) {
		if (localnames == 0)
			return(0);
		for (ap = localnames; *ap; ap++)
			printf("%s ", *ap);
		printf("\n");
		return(0);
	}
	if (localnames != 0)
		cfree((char *) localnames);
	localnames = (char **) calloc(c, sizeof (char *));
	for (ap = namelist, ap2 = localnames; *ap; ap++, ap2++) {
		cp = (char *) calloc(strlen(*ap) + 1, sizeof (char));
		strcpy(cp, *ap);
		*ap2 = cp;
	}
	*ap2 = 0;
	return(0);
}

/*
 * Scroll to the next/previous screen
 */

scroll(arg)
	char arg[];
{
	register int s, size;
	int cur[1];

	cur[0] = 0;
	size = screensize();
	s = screen;
	switch (*arg) {
	case 0:
	case '+':
		s++;
		if (s * size > msgCount) {
			printf("On last screenful of messages\n");
			return(0);
		}
		screen = s;
		break;

	case '-':
		if (--s < 0) {
			printf("On first screenful of messages\n");
			return(0);
		}
		screen = s;
		break;

	default:
		printf("Unrecognized scrolling command \"%s\"\n", arg);
		return(1);
	}
	return(headers(cur));
}

/*
 * Compute what the screen size should be.
 * We use the following algorithm:
 *	If user specifies with screen option, use that.
 *	If baud rate < 1200, use  5
 *	If baud rate = 1200, use 10
 *	If baud rate > 1200, use 20
 */
screensize()
{
	register char *cp;
	register int s;
#ifdef	TIOCGWINSZ
	struct winsize ws;
#endif

	if ((cp = value("screen")) != NOSTR) {
		s = atoi(cp);
		if (s > 0)
			return(s);
	}
	if (baud < B1200)
		s = 5;
	else if (baud == B1200)
		s = 10;
#ifdef	TIOCGWINSZ
	else if (ioctl(fileno(stdout), TIOCGWINSZ, &ws) == 0 && ws.ws_row != 0)
		s = ws.ws_row - 4;
#endif
	else
		s = 20;
	return(s);
}

/*
 * Print out the headlines for each message
 * in the passed message list.
 */

from(msgvec)
	int *msgvec;
{
	register int *ip;

	for (ip = msgvec; *ip != NULL; ip++) {
		printhead(*ip);
		sreset();
	}
	if (--ip >= msgvec)
		dot = &message[*ip - 1];
	return(0);
}

/*
 * Print out the header of a specific message.
 * This is a slight improvement to the standard one.
 */

printhead(mesg)
{
	struct message *mp;
	FILE *ibuf;
	char headline[LINESIZE], wcount[LINESIZE], *subjline, dispc, curind;
	char pbuf[BUFSIZ];
	int s;
	struct headline hl;
	register char *cp;

	mp = &message[mesg-1];
	ibuf = setinput(mp);
	readline(ibuf, headline);
	subjline = hfield("subject", mp);
	if (subjline == NOSTR)
		subjline = hfield("subj", mp);

	/*
	 * Bletch!
	 */

	if (subjline != NOSTR && strlen(subjline) > 28)
		subjline[29] = '\0';
	curind = dot == mp ? '>' : ' ';
	dispc = ' ';
	if (mp->m_flag & MSAVED)
		dispc = '*';
	if (mp->m_flag & MPRESERVE)
		dispc = 'P';
	if ((mp->m_flag & (MREAD|MNEW)) == MNEW)
		dispc = 'N';
	if ((mp->m_flag & (MREAD|MNEW)) == 0)
		dispc = 'U';
	if (mp->m_flag & MBOX)
		dispc = 'M';
	parse(headline, &hl, pbuf);
	sprintf(wcount, " %d/%ld", mp->m_lines, mp->m_size);
	s = strlen(wcount);
	cp = wcount + s;
	while (s < 7)
		s++, *cp++ = ' ';
	*cp = '\0';
	if (subjline != NOSTR)
		printf("%c%c%3d %-8s %16.16s %s \"%s\"\n", curind, dispc, mesg,
		    nameof(mp, 0), hl.l_date, wcount, subjline);
	else
		printf("%c%c%3d %-8s %16.16s %s\n", curind, dispc, mesg,
		    nameof(mp, 0), hl.l_date, wcount);
}

/*
 * Print out the value of dot.
 */

pdot()
{
	printf("%d\n", dot - &message[0] + 1);
	return(0);
}

/*
 * Print out all the possible commands.
 */

pcmdlist()
{
	register struct cmd *cp;
	register int cc;
	extern struct cmd cmdtab[];

	printf("Commands are:\n");
	for (cc = 0, cp = cmdtab; cp->c_name != NULL; cp++) {
		cc += strlen(cp->c_name) + 2;
		if (cc > 72) {
			printf("\n");
			cc = strlen(cp->c_name) + 2;
		}
		if ((cp+1)->c_name != NOSTR)
			printf("%s, ", cp->c_name);
		else
			printf("%s\n", cp->c_name);
	}
	return(0);
}

/*
 * Paginate messages, honor ignored fields.
 */
more(msgvec)
	int *msgvec;
{
	return (type1(msgvec, 1, 1));
}

/*
 * Paginate messages, even printing ignored fields.
 */
More(msgvec)
	int *msgvec;
{

	return (type1(msgvec, 0, 1));
}

/*
 * Type out messages, honor ignored fields.
 */
type(msgvec)
	int *msgvec;
{

	return(type1(msgvec, 1, 0));
}

/*
 * Type out messages, even printing ignored fields.
 */
Type(msgvec)
	int *msgvec;
{

	return(type1(msgvec, 0, 0));
}

/*
 * Type out the messages requested.
 */
jmp_buf	pipestop;

type1(msgvec, doign, page)
	int *msgvec;
{
	register *ip;
	register struct message *mp;
	register int mesg;
	register char *cp;
	int c, nlines;
	int brokpipe();
	FILE *ibuf, *obuf;

	obuf = stdout;
	if (setjmp(pipestop)) {
		if (obuf != stdout) {
			pipef = NULL;
			pclose(obuf);
		}
		sigset(SIGPIPE, SIG_DFL);
		return(0);
	}
	if (intty && outtty && (page || (cp = value("crt")) != NOSTR)) {
		nlines = 0;
		if (!page) {
			for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++)
				nlines += message[*ip - 1].m_lines;
		}
		if (page || nlines > atoi(cp)) {
			cp = value("PAGER");
			if (cp == NULL || *cp == '\0')
				cp = MORE;
			obuf = popen(cp, "w");
			if (obuf == NULL) {
				perror(cp);
				obuf = stdout;
			}
			else {
				pipef = obuf;
				sigset(SIGPIPE, brokpipe);
			}
		}
	}
	for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
		mesg = *ip;
		touch(mesg);
		mp = &message[mesg-1];
		dot = mp;
		print(mp, obuf, doign);
	}
	if (obuf != stdout) {
		pipef = NULL;
		pclose(obuf);
	}
	sigset(SIGPIPE, SIG_DFL);
	return(0);
}

/*
 * Respond to a broken pipe signal --
 * probably caused by using quitting more.
 */

brokpipe()
{
# ifndef VMUNIX
	signal(SIGPIPE, brokpipe);
# endif
	longjmp(pipestop, 1);
}

/*
 * Print the indicated message on standard output.
 */

print(mp, obuf, doign)
	register struct message *mp;
	FILE *obuf;
{

	if (value("quiet") == NOSTR)
		fprintf(obuf, "Message %2d:\n", mp - &message[0] + 1);
	touch(mp - &message[0] + 1);
	send(mp, obuf, doign);
}

/*
 * Print the top so many lines of each desired message.
 * The number of lines is taken from the variable "toplines"
 * and defaults to 5.
 */

top(msgvec)
	int *msgvec;
{
	register int *ip;
	register struct message *mp;
	register int mesg;
	int c, topl, lines, lineb;
	char *valtop, linebuf[LINESIZE];
	FILE *ibuf;

	topl = 5;
	valtop = value("toplines");
	if (valtop != NOSTR) {
		topl = atoi(valtop);
		if (topl < 0 || topl > 10000)
			topl = 5;
	}
	lineb = 1;
	for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
		mesg = *ip;
		touch(mesg);
		mp = &message[mesg-1];
		dot = mp;
		if (value("quiet") == NOSTR)
			printf("Message %2d:\n", mesg);
		ibuf = setinput(mp);
		c = mp->m_lines;
		if (!lineb)
			printf("\n");
		for (lines = 0; lines < c && lines <= topl; lines++) {
			if (readline(ibuf, linebuf) <= 0)
				break;
			puts(linebuf);
			lineb = blankline(linebuf);
		}
	}
	return(0);
}

/*
 * Touch all the given messages so that they will
 * get mboxed.
 */

stouch(msgvec)
	int msgvec[];
{
	register int *ip;

	for (ip = msgvec; *ip != 0; ip++) {
		dot = &message[*ip-1];
		dot->m_flag |= MTOUCH;
		dot->m_flag &= ~MPRESERVE;
	}
	return(0);
}

/*
 * Make sure all passed messages get mboxed.
 */

mboxit(msgvec)
	int msgvec[];
{
	register int *ip;

	for (ip = msgvec; *ip != 0; ip++) {
		dot = &message[*ip-1];
		dot->m_flag |= MTOUCH|MBOX;
		dot->m_flag &= ~MPRESERVE;
	}
	return(0);
}

/*
 * List the folders the user currently has.
 */
folders()
{
	char dirname[BUFSIZ], cmd[BUFSIZ];
	int pid, s, e;

	if (getfold(dirname) < 0) {
		printf("No value set for \"folder\"\n");
		return(-1);
	}
	switch ((pid = fork())) {
	case 0:
		sigchild();
		execlp("ls", "ls", dirname, 0);
		_exit(1);

	case -1:
		perror("fork");
		return(-1);

	default:
		while ((e = wait(&s)) != -1 && e != pid)
			;
	}
	return(0);
}
Commit	Line	Data
b059c7be DF	1	/*
	2	* Copyright (c) 1980 Regents of the University of California.
	3	* All rights reserved. The Berkeley software License Agreement
	4	* specifies the terms and conditions for redistribution.
	5	*/
	6
2ae9f53f	7	#ifndef lint
2d7425cf	8	static char *sccsid = "@(#)cmd1.c 5.3 (Berkeley) %G%";
b059c7be	9	#endif not lint
2ae9f53f	10
d702437a KS	11	#include "rcv.h"
	12	#include <sys/stat.h>
	13
	14	/*
	15	* Mail -- a mail program
	16	*
	17	* User commands.
	18	*/
	19
d702437a KS	20	/*
d702437a KS	21	* Print the current active headings.
f75dd1e5	22	* Don't change dot if invoker didn't give an argument.
d702437a KS	23	*/
	24
	25	static int screen;
	26
	27	headers(msgvec)
	28	int *msgvec;
	29	{
	30	register int n, mesg, flag;
	31	register struct message *mp;
1491ef97	32	int size;
d702437a	33
1491ef97	34	size = screensize();
d702437a KS	35	n = msgvec[0];
d702437a KS	36	if (n != 0)
1491ef97	37	screen = (n-1)/size;
d702437a KS	38	if (screen < 0)
d702437a KS	39	screen = 0;
1491ef97	40	mp = &message[screen * size];
d702437a	41	if (mp >= &message[msgCount])
1491ef97	42	mp = &message[msgCount - size];
d702437a KS	43	if (mp < &message[0])
	44	mp = &message[0];
	45	flag = 0;
	46	mesg = mp - &message[0];
f75dd1e5 KS	47	if (dot != &message[n-1])
f75dd1e5 KS	48	dot = mp;
d702437a KS	49	for (; mp < &message[msgCount]; mp++) {
	50	mesg++;
	51	if (mp->m_flag & MDELETED)
	52	continue;
1491ef97	53	if (flag++ >= size)
d702437a KS	54	break;
	55	printhead(mesg);
	56	sreset();
	57	}
	58	if (flag == 0) {
	59	printf("No more mail.\n");
	60	return(1);
	61	}
	62	return(0);
	63	}
	64
06440f31 CL	65	/*
	66	* Set the list of alternate names for out host.
	67	*/
	68	local(namelist)
	69	char **namelist;
	70	{
	71	register int c;
	72	register char ap, ap2, *cp;
	73
	74	c = argcount(namelist) + 1;
	75	if (c == 1) {
	76	if (localnames == 0)
	77	return(0);
	78	for (ap = localnames; *ap; ap++)
	79	printf("%s ", *ap);
	80	printf("\n");
	81	return(0);
	82	}
	83	if (localnames != 0)
	84	cfree((char *) localnames);
	85	localnames = (char *) calloc(c, sizeof (char ));
	86	for (ap = namelist, ap2 = localnames; *ap; ap++, ap2++) {
	87	cp = (char ) calloc(strlen(ap) + 1, sizeof (char));
	88	strcpy(cp, *ap);
	89	*ap2 = cp;
	90	}
	91	*ap2 = 0;
	92	return(0);
	93	}
	94
d702437a KS	95	/*
	96	* Scroll to the next/previous screen
	97	*/
	98
	99	scroll(arg)
	100	char arg[];
	101	{
1491ef97	102	register int s, size;
d702437a KS	103	int cur[1];
	104
	105	cur[0] = 0;
1491ef97	106	size = screensize();
d702437a KS	107	s = screen;
	108	switch (*arg) {
	109	case 0:
	110	case '+':
	111	s++;
1491ef97	112	if (s * size > msgCount) {
d702437a KS	113	printf("On last screenful of messages\n");
	114	return(0);
	115	}
	116	screen = s;
	117	break;
	118
	119	case '-':
	120	if (--s < 0) {
	121	printf("On first screenful of messages\n");
	122	return(0);
	123	}
	124	screen = s;
	125	break;
	126
	127	default:
	128	printf("Unrecognized scrolling command \"%s\"\n", arg);
	129	return(1);
	130	}
	131	return(headers(cur));
	132	}
	133
1491ef97 KS	134	/*
	135	* Compute what the screen size should be.
	136	* We use the following algorithm:
	137	* If user specifies with screen option, use that.
	138	* If baud rate < 1200, use 5
	139	* If baud rate = 1200, use 10
	140	* If baud rate > 1200, use 20
	141	*/
	142	screensize()
	143	{
	144	register char *cp;
	145	register int s;
b041ccec S	146	#ifdef TIOCGWINSZ
	147	struct winsize ws;
	148	#endif
1491ef97 KS	149
	150	if ((cp = value("screen")) != NOSTR) {
	151	s = atoi(cp);
	152	if (s > 0)
	153	return(s);
	154	}
	155	if (baud < B1200)
	156	s = 5;
	157	else if (baud == B1200)
	158	s = 10;
b041ccec S	159	#ifdef TIOCGWINSZ
	160	else if (ioctl(fileno(stdout), TIOCGWINSZ, &ws) == 0 && ws.ws_row != 0)
	161	s = ws.ws_row - 4;
	162	#endif
1491ef97 KS	163	else
	164	s = 20;
	165	return(s);
	166	}
d702437a KS	167
	168	/*
	169	* Print out the headlines for each message
	170	* in the passed message list.
	171	*/
	172
	173	from(msgvec)
	174	int *msgvec;
	175	{
	176	register int *ip;
	177
	178	for (ip = msgvec; *ip != NULL; ip++) {
	179	printhead(*ip);
	180	sreset();
	181	}
	182	if (--ip >= msgvec)
	183	dot = &message[*ip - 1];
	184	return(0);
	185	}
	186
	187	/*
	188	* Print out the header of a specific message.
	189	* This is a slight improvement to the standard one.
	190	*/
	191
	192	printhead(mesg)
	193	{
	194	struct message *mp;
	195	FILE *ibuf;
2d7425cf	196	char headline[LINESIZE], wcount[LINESIZE], *subjline, dispc, curind;
d702437a KS	197	char pbuf[BUFSIZ];
	198	int s;
	199	struct headline hl;
	200	register char *cp;
	201
	202	mp = &message[mesg-1];
	203	ibuf = setinput(mp);
	204	readline(ibuf, headline);
	205	subjline = hfield("subject", mp);
	206	if (subjline == NOSTR)
	207	subjline = hfield("subj", mp);
	208
	209	/*
	210	* Bletch!
	211	*/
	212
	213	if (subjline != NOSTR && strlen(subjline) > 28)
	214	subjline[29] = '\0';
f75dd1e5	215	curind = dot == mp ? '>' : ' ';
d702437a KS	216	dispc = ' ';
	217	if (mp->m_flag & MSAVED)
	218	dispc = '*';
	219	if (mp->m_flag & MPRESERVE)
	220	dispc = 'P';
5bfbbe88	221	if ((mp->m_flag & (MREAD\|MNEW)) == MNEW)
f4d36a07	222	dispc = 'N';
5bfbbe88 KS	223	if ((mp->m_flag & (MREAD\|MNEW)) == 0)
5bfbbe88 KS	224	dispc = 'U';
f2230dfd KS	225	if (mp->m_flag & MBOX)
f2230dfd KS	226	dispc = 'M';
d702437a	227	parse(headline, &hl, pbuf);
0154300b	228	sprintf(wcount, " %d/%ld", mp->m_lines, mp->m_size);
d702437a KS	229	s = strlen(wcount);
	230	cp = wcount + s;
	231	while (s < 7)
	232	s++, *cp++ = ' ';
	233	*cp = '\0';
	234	if (subjline != NOSTR)
f75dd1e5	235	printf("%c%c%3d %-8s %16.16s %s \"%s\"\n", curind, dispc, mesg,
186f16d8	236	nameof(mp, 0), hl.l_date, wcount, subjline);
d702437a	237	else
f75dd1e5	238	printf("%c%c%3d %-8s %16.16s %s\n", curind, dispc, mesg,
186f16d8	239	nameof(mp, 0), hl.l_date, wcount);
d702437a KS	240	}
	241
	242	/*
	243	* Print out the value of dot.
	244	*/
	245
	246	pdot()
	247	{
	248	printf("%d\n", dot - &message[0] + 1);
	249	return(0);
	250	}
	251
	252	/*
	253	* Print out all the possible commands.
	254	*/
	255
	256	pcmdlist()
	257	{
	258	register struct cmd *cp;
	259	register int cc;
	260	extern struct cmd cmdtab[];
	261
	262	printf("Commands are:\n");
	263	for (cc = 0, cp = cmdtab; cp->c_name != NULL; cp++) {
	264	cc += strlen(cp->c_name) + 2;
	265	if (cc > 72) {
	266	printf("\n");
	267	cc = strlen(cp->c_name) + 2;
	268	}
	269	if ((cp+1)->c_name != NOSTR)
	270	printf("%s, ", cp->c_name);
	271	else
	272	printf("%s\n", cp->c_name);
	273	}
	274	return(0);
	275	}
	276
b041ccec S	277	/*
	278	* Paginate messages, honor ignored fields.
	279	*/
	280	more(msgvec)
	281	int *msgvec;
	282	{
	283	return (type1(msgvec, 1, 1));
	284	}
	285
	286	/*
	287	* Paginate messages, even printing ignored fields.
	288	*/
	289	More(msgvec)
	290	int *msgvec;
	291	{
	292
	293	return (type1(msgvec, 0, 1));
	294	}
	295
d702437a	296	/*
15bff4bb	297	* Type out messages, honor ignored fields.
d702437a	298	*/
15bff4bb KS	299	type(msgvec)
	300	int *msgvec;
	301	{
d702437a	302
b041ccec	303	return(type1(msgvec, 1, 0));
15bff4bb KS	304	}
	305
	306	/*
	307	* Type out messages, even printing ignored fields.
	308	*/
	309	Type(msgvec)
	310	int *msgvec;
	311	{
	312
b041ccec	313	return(type1(msgvec, 0, 0));
15bff4bb KS	314	}
	315
	316	/*
	317	* Type out the messages requested.
	318	*/
740867ff KS	319	jmp_buf pipestop;
740867ff KS	320
b041ccec	321	type1(msgvec, doign, page)
d702437a KS	322	int *msgvec;
	323	{
	324	register *ip;
	325	register struct message *mp;
	326	register int mesg;
740867ff KS	327	register char *cp;
	328	int c, nlines;
	329	int brokpipe();
	330	FILE ibuf, obuf;
	331
	332	obuf = stdout;
	333	if (setjmp(pipestop)) {
	334	if (obuf != stdout) {
740867ff	335	pipef = NULL;
fc3f7633	336	pclose(obuf);
740867ff	337	}
fd0ddf32	338	sigset(SIGPIPE, SIG_DFL);
740867ff KS	339	return(0);
740867ff KS	340	}
b041ccec	341	if (intty && outtty && (page \|\| (cp = value("crt")) != NOSTR)) {
2d7425cf	342	nlines = 0;
b041ccec	343	if (!page) {
b041ccec S	344	for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++)
	345	nlines += message[*ip - 1].m_lines;
	346	}
	347	if (page \|\| nlines > atoi(cp)) {
2d7425cf S	348	cp = value("PAGER");
	349	if (cp == NULL \|\| *cp == '\0')
	350	cp = MORE;
	351	obuf = popen(cp, "w");
740867ff	352	if (obuf == NULL) {
2d7425cf	353	perror(cp);
740867ff KS	354	obuf = stdout;
	355	}
	356	else {
	357	pipef = obuf;
fd0ddf32	358	sigset(SIGPIPE, brokpipe);
740867ff KS	359	}
	360	}
	361	}
d702437a KS	362	for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
	363	mesg = *ip;
	364	touch(mesg);
	365	mp = &message[mesg-1];
	366	dot = mp;
15bff4bb	367	print(mp, obuf, doign);
740867ff	368	}
740867ff	369	if (obuf != stdout) {
740867ff	370	pipef = NULL;
fc3f7633	371	pclose(obuf);
d702437a	372	}
fd0ddf32	373	sigset(SIGPIPE, SIG_DFL);
d702437a KS	374	return(0);
	375	}
	376
740867ff KS	377	/*
	378	* Respond to a broken pipe signal --
	379	* probably caused by using quitting more.
	380	*/
	381
	382	brokpipe()
	383	{
4bc721c3	384	# ifndef VMUNIX
ea394d88 KS	385	signal(SIGPIPE, brokpipe);
ea394d88 KS	386	# endif
fc3f7633	387	longjmp(pipestop, 1);
740867ff KS	388	}
740867ff KS	389
d702437a KS	390	/*
	391	* Print the indicated message on standard output.
	392	*/
	393
15bff4bb	394	print(mp, obuf, doign)
d702437a	395	register struct message *mp;
740867ff	396	FILE *obuf;
d702437a KS	397	{
	398
	399	if (value("quiet") == NOSTR)
740867ff	400	fprintf(obuf, "Message %2d:\n", mp - &message[0] + 1);
d702437a	401	touch(mp - &message[0] + 1);
15bff4bb	402	send(mp, obuf, doign);
d702437a KS	403	}
	404
	405	/*
	406	* Print the top so many lines of each desired message.
	407	* The number of lines is taken from the variable "toplines"
	408	* and defaults to 5.
	409	*/
	410
	411	top(msgvec)
	412	int *msgvec;
	413	{
	414	register int *ip;
	415	register struct message *mp;
	416	register int mesg;
	417	int c, topl, lines, lineb;
	418	char *valtop, linebuf[LINESIZE];
	419	FILE *ibuf;
	420
	421	topl = 5;
	422	valtop = value("toplines");
	423	if (valtop != NOSTR) {
	424	topl = atoi(valtop);
	425	if (topl < 0 \|\| topl > 10000)
	426	topl = 5;
	427	}
	428	lineb = 1;
	429	for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
	430	mesg = *ip;
	431	touch(mesg);
	432	mp = &message[mesg-1];
	433	dot = mp;
	434	if (value("quiet") == NOSTR)
	435	printf("Message %2d:\n", mesg);
	436	ibuf = setinput(mp);
	437	c = mp->m_lines;
	438	if (!lineb)
	439	printf("\n");
	440	for (lines = 0; lines < c && lines <= topl; lines++) {
	441	if (readline(ibuf, linebuf) <= 0)
	442	break;
	443	puts(linebuf);
	444	lineb = blankline(linebuf);
	445	}
	446	}
	447	return(0);
	448	}
	449
	450	/*
	451	* Touch all the given messages so that they will
	452	* get mboxed.
	453	*/
	454
	455	stouch(msgvec)
	456	int msgvec[];
	457	{
	458	register int *ip;
	459
	460	for (ip = msgvec; *ip != 0; ip++) {
d702437a	461	dot = &message[*ip-1];
5bfbbe88	462	dot->m_flag \|= MTOUCH;
d702437a KS	463	dot->m_flag &= ~MPRESERVE;
	464	}
	465	return(0);
	466	}
f2230dfd KS	467
	468	/*
	469	* Make sure all passed messages get mboxed.
	470	*/
	471
	472	mboxit(msgvec)
	473	int msgvec[];
	474	{
	475	register int *ip;
	476
	477	for (ip = msgvec; *ip != 0; ip++) {
	478	dot = &message[*ip-1];
	479	dot->m_flag \|= MTOUCH\|MBOX;
	480	dot->m_flag &= ~MPRESERVE;
	481	}
	482	return(0);
	483	}
2470b1d8 KS	484
	485	/*
	486	* List the folders the user currently has.
	487	*/
	488	folders()
	489	{
2470b1d8 KS	490	char dirname[BUFSIZ], cmd[BUFSIZ];
	491	int pid, s, e;
	492
a5bfa0a3 KS	493	if (getfold(dirname) < 0) {
a5bfa0a3 KS	494	printf("No value set for \"folder\"\n");
2470b1d8 KS	495	return(-1);
2470b1d8 KS	496	}
2470b1d8 KS	497	switch ((pid = fork())) {
2470b1d8 KS	498	case 0:
64df7743	499	sigchild();
a5bfa0a3	500	execlp("ls", "ls", dirname, 0);
80187484	501	_exit(1);
2470b1d8 KS	502
	503	case -1:
	504	perror("fork");
	505	return(-1);
	506
	507	default:
	508	while ((e = wait(&s)) != -1 && e != pid)
	509	;
	510	}
	511	return(0);
	512	}