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

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

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

static char *SccsId = "@(#)cmd1.c	2.8 %G%";

/*
 * 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);
}

/*
 * 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;

	if ((cp = value("screen")) != NOSTR) {
		s = atoi(cp);
		if (s > 0)
			return(s);
	}
	if (baud < B1200)
		s = 5;
	else if (baud == B1200)
		s = 10;
	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[10], *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/%d", 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);
}

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

	return(type1(msgvec, 1));
}

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

	return(type1(msgvec, 0));
}

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

type1(msgvec, doign)
	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 && (cp = value("crt")) != NOSTR) {
		for (ip = msgvec, nlines = 0; *ip && ip-msgvec < msgCount; ip++)
			nlines += message[*ip - 1].m_lines;
		if (nlines > atoi(cp)) {
			obuf = popen(MORE, "w");
			if (obuf == NULL) {
				perror(MORE);
				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()
{
# ifdef VMUNIX
	sigrelse(SIGPIPE);
# else
	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);
		clrbuf(stdout);
		exit(1);

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

	default:
		while ((e = wait(&s)) != -1 && e != pid)
			;
	}
	return(0);
}
Commit	Line	Data
d702437a KS	1	#
	2	#include "rcv.h"
	3	#include <sys/stat.h>
	4
	5	/*
	6	* Mail -- a mail program
	7	*
	8	* User commands.
	9	*/
	10
15bff4bb	11	static char *SccsId = "@(#)cmd1.c 2.8 %G%";
d702437a KS	12
	13	/*
	14	* Print the current active headings.
f75dd1e5	15	* Don't change dot if invoker didn't give an argument.
d702437a KS	16	*/
	17
	18	static int screen;
	19
	20	headers(msgvec)
	21	int *msgvec;
	22	{
	23	register int n, mesg, flag;
	24	register struct message *mp;
1491ef97	25	int size;
d702437a	26
1491ef97	27	size = screensize();
d702437a KS	28	n = msgvec[0];
d702437a KS	29	if (n != 0)
1491ef97	30	screen = (n-1)/size;
d702437a KS	31	if (screen < 0)
d702437a KS	32	screen = 0;
1491ef97	33	mp = &message[screen * size];
d702437a	34	if (mp >= &message[msgCount])
1491ef97	35	mp = &message[msgCount - size];
d702437a KS	36	if (mp < &message[0])
	37	mp = &message[0];
	38	flag = 0;
	39	mesg = mp - &message[0];
f75dd1e5 KS	40	if (dot != &message[n-1])
f75dd1e5 KS	41	dot = mp;
d702437a KS	42	for (; mp < &message[msgCount]; mp++) {
	43	mesg++;
	44	if (mp->m_flag & MDELETED)
	45	continue;
1491ef97	46	if (flag++ >= size)
d702437a KS	47	break;
	48	printhead(mesg);
	49	sreset();
	50	}
	51	if (flag == 0) {
	52	printf("No more mail.\n");
	53	return(1);
	54	}
	55	return(0);
	56	}
	57
	58	/*
	59	* Scroll to the next/previous screen
	60	*/
	61
	62	scroll(arg)
	63	char arg[];
	64	{
1491ef97	65	register int s, size;
d702437a KS	66	int cur[1];
	67
	68	cur[0] = 0;
1491ef97	69	size = screensize();
d702437a KS	70	s = screen;
	71	switch (*arg) {
	72	case 0:
	73	case '+':
	74	s++;
1491ef97	75	if (s * size > msgCount) {
d702437a KS	76	printf("On last screenful of messages\n");
	77	return(0);
	78	}
	79	screen = s;
	80	break;
	81
	82	case '-':
	83	if (--s < 0) {
	84	printf("On first screenful of messages\n");
	85	return(0);
	86	}
	87	screen = s;
	88	break;
	89
	90	default:
	91	printf("Unrecognized scrolling command \"%s\"\n", arg);
	92	return(1);
	93	}
	94	return(headers(cur));
	95	}
	96
1491ef97 KS	97	/*
	98	* Compute what the screen size should be.
	99	* We use the following algorithm:
	100	* If user specifies with screen option, use that.
	101	* If baud rate < 1200, use 5
	102	* If baud rate = 1200, use 10
	103	* If baud rate > 1200, use 20
	104	*/
	105	screensize()
	106	{
	107	register char *cp;
	108	register int s;
	109
	110	if ((cp = value("screen")) != NOSTR) {
	111	s = atoi(cp);
	112	if (s > 0)
	113	return(s);
	114	}
	115	if (baud < B1200)
	116	s = 5;
	117	else if (baud == B1200)
	118	s = 10;
	119	else
	120	s = 20;
	121	return(s);
	122	}
d702437a KS	123
	124	/*
	125	* Print out the headlines for each message
	126	* in the passed message list.
	127	*/
	128
	129	from(msgvec)
	130	int *msgvec;
	131	{
	132	register int *ip;
	133
	134	for (ip = msgvec; *ip != NULL; ip++) {
	135	printhead(*ip);
	136	sreset();
	137	}
	138	if (--ip >= msgvec)
	139	dot = &message[*ip - 1];
	140	return(0);
	141	}
	142
	143	/*
	144	* Print out the header of a specific message.
	145	* This is a slight improvement to the standard one.
	146	*/
	147
	148	printhead(mesg)
	149	{
	150	struct message *mp;
	151	FILE *ibuf;
f75dd1e5	152	char headline[LINESIZE], wcount[10], *subjline, dispc, curind;
d702437a KS	153	char pbuf[BUFSIZ];
	154	int s;
	155	struct headline hl;
	156	register char *cp;
	157
	158	mp = &message[mesg-1];
	159	ibuf = setinput(mp);
	160	readline(ibuf, headline);
	161	subjline = hfield("subject", mp);
	162	if (subjline == NOSTR)
	163	subjline = hfield("subj", mp);
	164
	165	/*
	166	* Bletch!
	167	*/
	168
	169	if (subjline != NOSTR && strlen(subjline) > 28)
	170	subjline[29] = '\0';
f75dd1e5	171	curind = dot == mp ? '>' : ' ';
d702437a KS	172	dispc = ' ';
	173	if (mp->m_flag & MSAVED)
	174	dispc = '*';
	175	if (mp->m_flag & MPRESERVE)
	176	dispc = 'P';
5bfbbe88	177	if ((mp->m_flag & (MREAD\|MNEW)) == MNEW)
f4d36a07	178	dispc = 'N';
5bfbbe88 KS	179	if ((mp->m_flag & (MREAD\|MNEW)) == 0)
5bfbbe88 KS	180	dispc = 'U';
f2230dfd KS	181	if (mp->m_flag & MBOX)
f2230dfd KS	182	dispc = 'M';
d702437a KS	183	parse(headline, &hl, pbuf);
	184	sprintf(wcount, " %d/%d", mp->m_lines, mp->m_size);
	185	s = strlen(wcount);
	186	cp = wcount + s;
	187	while (s < 7)
	188	s++, *cp++ = ' ';
	189	*cp = '\0';
	190	if (subjline != NOSTR)
f75dd1e5	191	printf("%c%c%3d %-8s %16.16s %s \"%s\"\n", curind, dispc, mesg,
186f16d8	192	nameof(mp, 0), hl.l_date, wcount, subjline);
d702437a	193	else
f75dd1e5	194	printf("%c%c%3d %-8s %16.16s %s\n", curind, dispc, mesg,
186f16d8	195	nameof(mp, 0), hl.l_date, wcount);
d702437a KS	196	}
	197
	198	/*
	199	* Print out the value of dot.
	200	*/
	201
	202	pdot()
	203	{
	204	printf("%d\n", dot - &message[0] + 1);
	205	return(0);
	206	}
	207
	208	/*
	209	* Print out all the possible commands.
	210	*/
	211
	212	pcmdlist()
	213	{
	214	register struct cmd *cp;
	215	register int cc;
	216	extern struct cmd cmdtab[];
	217
	218	printf("Commands are:\n");
	219	for (cc = 0, cp = cmdtab; cp->c_name != NULL; cp++) {
	220	cc += strlen(cp->c_name) + 2;
	221	if (cc > 72) {
	222	printf("\n");
	223	cc = strlen(cp->c_name) + 2;
	224	}
	225	if ((cp+1)->c_name != NOSTR)
	226	printf("%s, ", cp->c_name);
	227	else
	228	printf("%s\n", cp->c_name);
	229	}
	230	return(0);
	231	}
	232
	233	/*
15bff4bb	234	* Type out messages, honor ignored fields.
d702437a	235	*/
15bff4bb KS	236	type(msgvec)
	237	int *msgvec;
	238	{
d702437a	239
15bff4bb KS	240	return(type1(msgvec, 1));
	241	}
	242
	243	/*
	244	* Type out messages, even printing ignored fields.
	245	*/
	246	Type(msgvec)
	247	int *msgvec;
	248	{
	249
	250	return(type1(msgvec, 0));
	251	}
	252
	253	/*
	254	* Type out the messages requested.
	255	*/
740867ff KS	256	jmp_buf pipestop;
740867ff KS	257
15bff4bb	258	type1(msgvec, doign)
d702437a KS	259	int *msgvec;
	260	{
	261	register *ip;
	262	register struct message *mp;
	263	register int mesg;
740867ff KS	264	register char *cp;
	265	int c, nlines;
	266	int brokpipe();
	267	FILE ibuf, obuf;
	268
	269	obuf = stdout;
	270	if (setjmp(pipestop)) {
	271	if (obuf != stdout) {
740867ff	272	pipef = NULL;
fc3f7633	273	pclose(obuf);
740867ff	274	}
fd0ddf32	275	sigset(SIGPIPE, SIG_DFL);
740867ff KS	276	return(0);
	277	}
	278	if (intty && outtty && (cp = value("crt")) != NOSTR) {
	279	for (ip = msgvec, nlines = 0; *ip && ip-msgvec < msgCount; ip++)
	280	nlines += message[*ip - 1].m_lines;
	281	if (nlines > atoi(cp)) {
	282	obuf = popen(MORE, "w");
	283	if (obuf == NULL) {
	284	perror(MORE);
	285	obuf = stdout;
	286	}
	287	else {
	288	pipef = obuf;
fd0ddf32	289	sigset(SIGPIPE, brokpipe);
740867ff KS	290	}
	291	}
	292	}
d702437a KS	293	for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
	294	mesg = *ip;
	295	touch(mesg);
	296	mp = &message[mesg-1];
	297	dot = mp;
15bff4bb	298	print(mp, obuf, doign);
740867ff	299	}
740867ff	300	if (obuf != stdout) {
740867ff	301	pipef = NULL;
fc3f7633	302	pclose(obuf);
d702437a	303	}
fd0ddf32	304	sigset(SIGPIPE, SIG_DFL);
d702437a KS	305	return(0);
	306	}
	307
740867ff KS	308	/*
	309	* Respond to a broken pipe signal --
	310	* probably caused by using quitting more.
	311	*/
	312
	313	brokpipe()
	314	{
ea394d88	315	# ifdef VMUNIX
fd0ddf32	316	sigrelse(SIGPIPE);
ea394d88 KS	317	# else
	318	signal(SIGPIPE, brokpipe);
	319	# endif
fc3f7633	320	longjmp(pipestop, 1);
740867ff KS	321	}
740867ff KS	322
d702437a KS	323	/*
	324	* Print the indicated message on standard output.
	325	*/
	326
15bff4bb	327	print(mp, obuf, doign)
d702437a	328	register struct message *mp;
740867ff	329	FILE *obuf;
d702437a KS	330	{
	331
	332	if (value("quiet") == NOSTR)
740867ff	333	fprintf(obuf, "Message %2d:\n", mp - &message[0] + 1);
d702437a	334	touch(mp - &message[0] + 1);
15bff4bb	335	send(mp, obuf, doign);
d702437a KS	336	}
	337
	338	/*
	339	* Print the top so many lines of each desired message.
	340	* The number of lines is taken from the variable "toplines"
	341	* and defaults to 5.
	342	*/
	343
	344	top(msgvec)
	345	int *msgvec;
	346	{
	347	register int *ip;
	348	register struct message *mp;
	349	register int mesg;
	350	int c, topl, lines, lineb;
	351	char *valtop, linebuf[LINESIZE];
	352	FILE *ibuf;
	353
	354	topl = 5;
	355	valtop = value("toplines");
	356	if (valtop != NOSTR) {
	357	topl = atoi(valtop);
	358	if (topl < 0 \|\| topl > 10000)
	359	topl = 5;
	360	}
	361	lineb = 1;
	362	for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
	363	mesg = *ip;
	364	touch(mesg);
	365	mp = &message[mesg-1];
	366	dot = mp;
	367	if (value("quiet") == NOSTR)
	368	printf("Message %2d:\n", mesg);
	369	ibuf = setinput(mp);
	370	c = mp->m_lines;
	371	if (!lineb)
	372	printf("\n");
	373	for (lines = 0; lines < c && lines <= topl; lines++) {
	374	if (readline(ibuf, linebuf) <= 0)
	375	break;
	376	puts(linebuf);
	377	lineb = blankline(linebuf);
	378	}
	379	}
	380	return(0);
	381	}
	382
	383	/*
	384	* Touch all the given messages so that they will
	385	* get mboxed.
	386	*/
	387
	388	stouch(msgvec)
	389	int msgvec[];
	390	{
	391	register int *ip;
	392
	393	for (ip = msgvec; *ip != 0; ip++) {
d702437a	394	dot = &message[*ip-1];
5bfbbe88	395	dot->m_flag \|= MTOUCH;
d702437a KS	396	dot->m_flag &= ~MPRESERVE;
	397	}
	398	return(0);
	399	}
f2230dfd KS	400
	401	/*
	402	* Make sure all passed messages get mboxed.
	403	*/
	404
	405	mboxit(msgvec)
	406	int msgvec[];
	407	{
	408	register int *ip;
	409
	410	for (ip = msgvec; *ip != 0; ip++) {
	411	dot = &message[*ip-1];
	412	dot->m_flag \|= MTOUCH\|MBOX;
	413	dot->m_flag &= ~MPRESERVE;
	414	}
	415	return(0);
	416	}
2470b1d8 KS	417
	418	/*
	419	* List the folders the user currently has.
	420	*/
	421	folders()
	422	{
2470b1d8 KS	423	char dirname[BUFSIZ], cmd[BUFSIZ];
	424	int pid, s, e;
	425
a5bfa0a3 KS	426	if (getfold(dirname) < 0) {
a5bfa0a3 KS	427	printf("No value set for \"folder\"\n");
2470b1d8 KS	428	return(-1);
2470b1d8 KS	429	}
2470b1d8 KS	430	switch ((pid = fork())) {
2470b1d8 KS	431	case 0:
64df7743	432	sigchild();
a5bfa0a3	433	execlp("ls", "ls", dirname, 0);
2470b1d8	434	clrbuf(stdout);
2470b1d8 KS	435	exit(1);
	436
	437	case -1:
	438	perror("fork");
	439	return(-1);
	440
	441	default:
	442	while ((e = wait(&s)) != -1 && e != pid)
	443	;
	444	}
	445	return(0);
	446	}