1 files changed, 504 insertions, 0 deletions
diff --git a/usr.bin/mail/cmd2.c b/usr.bin/mail/cmd2.c
new file mode 100644
index 0000000..dd7f6dd
--- /dev/null
+++ b/usr.bin/mail/cmd2.c
@@ -0,0 +1,504 @@
+/*
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)cmd2.c	8.1 (Berkeley) 6/6/93";
+#endif
+#endif /* not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "rcv.h"
+#include <sys/wait.h>
+#include "extern.h"
+
+/*
+ * Mail -- a mail program
+ *
+ * More user commands.
+ */
+
+extern int wait_status;
+
+/*
+ * If any arguments were given, go to the next applicable argument
+ * following dot, otherwise, go to the next applicable message.
+ * If given as first command with no arguments, print first message.
+ */
+int
+next(int *msgvec)
+{
+	struct message *mp;
+	int *ip, *ip2, list[2], mdot;
+
+	if (*msgvec != 0) {
+
+		/*
+		 * If some messages were supplied, find the
+		 * first applicable one following dot using
+		 * wrap around.
+		 */
+
+		mdot = dot - &message[0] + 1;
+
+		/*
+		 * Find the first message in the supplied
+		 * message list which follows dot.
+		 */
+
+		for (ip = msgvec; *ip != 0; ip++)
+			if (*ip > mdot)
+				break;
+		if (*ip == 0)
+			ip = msgvec;
+		ip2 = ip;
+		do {
+			mp = &message[*ip2 - 1];
+			if ((mp->m_flag & MDELETED) == 0) {
+				dot = mp;
+				goto hitit;
+			}
+			if (*ip2 != 0)
+				ip2++;
+			if (*ip2 == 0)
+				ip2 = msgvec;
+		} while (ip2 != ip);
+		printf("No messages applicable\n");
+		return (1);
+	}
+
+	/*
+	 * If this is the first command, select message 1.
+	 * Note that this must exist for us to get here at all.
+	 */
+
+	if (!sawcom)
+		goto hitit;
+
+	/*
+	 * Just find the next good message after dot, no
+	 * wraparound.
+	 */
+
+	for (mp = dot+1; mp < &message[msgCount]; mp++)
+		if ((mp->m_flag & (MDELETED|MSAVED)) == 0)
+			break;
+	if (mp >= &message[msgCount]) {
+		printf("At EOF\n");
+		return (0);
+	}
+	dot = mp;
+hitit:
+	/*
+	 * Print dot.
+	 */
+
+	list[0] = dot - &message[0] + 1;
+	list[1] = 0;
+	return (type(list));
+}
+
+/*
+ * Save a message in a file.  Mark the message as saved
+ * so we can discard when the user quits.
+ */
+int
+save(char str[])
+{
+
+	return (save1(str, 1, "save", saveignore));
+}
+
+/*
+ * Copy a message to a file without affected its saved-ness
+ */
+int
+copycmd(char str[])
+{
+
+	return (save1(str, 0, "copy", saveignore));
+}
+
+/*
+ * Save/copy the indicated messages at the end of the passed file name.
+ * If mark is true, mark the message "saved."
+ */
+int
+save1(char str[], int mark, const char *cmd, struct ignoretab *ignore)
+{
+	struct message *mp;
+	char *file;
+	const char *disp;
+	int f, *msgvec, *ip;
+	FILE *obuf;
+
+	msgvec = (int *)salloc((msgCount + 2) * sizeof(*msgvec));
+	if ((file = snarf(str, &f)) == NULL)
+		return (1);
+	if (!f) {
+		*msgvec = first(0, MMNORM);
+		if (*msgvec == 0) {
+			printf("No messages to %s.\n", cmd);
+			return (1);
+		}
+		msgvec[1] = 0;
+	}
+	if (f && getmsglist(str, msgvec, 0) < 0)
+		return (1);
+	if ((file = expand(file)) == NULL)
+		return (1);
+	printf("\"%s\" ", file);
+	(void)fflush(stdout);
+	if (access(file, 0) >= 0)
+		disp = "[Appended]";
+	else
+		disp = "[New file]";
+	if ((obuf = Fopen(file, "a")) == NULL) {
+		warn((char *)NULL);
+		return (1);
+	}
+	for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
+		mp = &message[*ip - 1];
+		touch(mp);
+		if (sendmessage(mp, obuf, ignore, NULL) < 0) {
+			warnx("%s", file);
+			(void)Fclose(obuf);
+			return (1);
+		}
+		if (mark)
+			mp->m_flag |= MSAVED;
+	}
+	(void)fflush(obuf);
+	if (ferror(obuf))
+		warn("%s", file);
+	(void)Fclose(obuf);
+	printf("%s\n", disp);
+	return (0);
+}
+
+/*
+ * Write the indicated messages at the end of the passed
+ * file name, minus header and trailing blank line.
+ */
+int
+swrite(char str[])
+{
+
+	return (save1(str, 1, "write", ignoreall));
+}
+
+/*
+ * Snarf the file from the end of the command line and
+ * return a pointer to it.  If there is no file attached,
+ * just return NULL.  Put a null in front of the file
+ * name so that the message list processing won't see it,
+ * unless the file name is the only thing on the line, in
+ * which case, return 0 in the reference flag variable.
+ */
+
+char *
+snarf(char linebuf[], int *flag)
+{
+	char *cp;
+
+	*flag = 1;
+	cp = strlen(linebuf) + linebuf - 1;
+
+	/*
+	 * Strip away trailing blanks.
+	 */
+
+	while (cp > linebuf && isspace((unsigned char)*cp))
+		cp--;
+	*++cp = '\0';
+
+	/*
+	 * Now search for the beginning of the file name.
+	 */
+
+	while (cp > linebuf && !isspace((unsigned char)*cp))
+		cp--;
+	if (*cp == '\0') {
+		printf("No file specified.\n");
+		return (NULL);
+	}
+	if (isspace((unsigned char)*cp))
+		*cp++ = '\0';
+	else
+		*flag = 0;
+	return (cp);
+}
+
+/*
+ * Delete messages.
+ */
+int
+delete(int msgvec[])
+{
+
+	delm(msgvec);
+	return (0);
+}
+
+/*
+ * Delete messages, then type the new dot.
+ */
+int
+deltype(int msgvec[])
+{
+	int list[2];
+	int lastdot;
+
+	lastdot = dot - &message[0] + 1;
+	if (delm(msgvec) >= 0) {
+		list[0] = dot - &message[0] + 1;
+		if (list[0] > lastdot) {
+			touch(dot);
+			list[1] = 0;
+			return (type(list));
+		}
+		printf("At EOF\n");
+	} else
+		printf("No more messages\n");
+	return (0);
+}
+
+/*
+ * Delete the indicated messages.
+ * Set dot to some nice place afterwards.
+ * Internal interface.
+ */
+int
+delm(int *msgvec)
+{
+	struct message *mp;
+	int *ip, last;
+
+	last = 0;
+	for (ip = msgvec; *ip != 0; ip++) {
+		mp = &message[*ip - 1];
+		touch(mp);
+		mp->m_flag |= MDELETED|MTOUCH;
+		mp->m_flag &= ~(MPRESERVE|MSAVED|MBOX);
+		last = *ip;
+	}
+	if (last != 0) {
+		dot = &message[last-1];
+		last = first(0, MDELETED);
+		if (last != 0) {
+			dot = &message[last-1];
+			return (0);
+		}
+		else {
+			dot = &message[0];
+			return (-1);
+		}
+	}
+
+	/*
+	 * Following can't happen -- it keeps lint happy
+	 */
+
+	return (-1);
+}
+
+/*
+ * Undelete the indicated messages.
+ */
+int
+undelete_messages(int *msgvec)
+{
+	struct message *mp;
+	int *ip;
+
+	for (ip = msgvec; *ip && ip-msgvec < msgCount; ip++) {
+		mp = &message[*ip - 1];
+		touch(mp);
+		dot = mp;
+		mp->m_flag &= ~MDELETED;
+	}
+	return (0);
+}
+
+/*
+ * Interactively dump core on "core"
+ */
+int
+core(void)
+{
+	int pid;
+
+	switch (pid = fork()) {
+	case -1:
+		warn("fork");
+		return (1);
+	case 0:
+		abort();
+		_exit(1);
+	}
+	printf("Okie dokie");
+	(void)fflush(stdout);
+	wait_child(pid);
+	if (WIFSIGNALED(wait_status) && WCOREDUMP(wait_status))
+		printf(" -- Core dumped.\n");
+	else
+		printf(" -- Can't dump core.\n");
+	return (0);
+}
+
+/*
+ * Clobber as many bytes of stack as the user requests.
+ */
+int
+clobber(char **argv)
+{
+	int times;
+
+	if (argv[0] == 0)
+		times = 1;
+	else
+		times = (atoi(argv[0]) + 511) / 512;
+	clob1(times);
+	return (0);
+}
+
+/*
+ * Clobber the stack.
+ */
+void
+clob1(int n)
+{
+	char buf[512];
+	char *cp;
+
+	if (n <= 0)
+		return;
+	for (cp = buf; cp < &buf[512]; *cp++ = 0xFF)
+		;
+	clob1(n - 1);
+}
+
+/*
+ * Add the given header fields to the retained list.
+ * If no arguments, print the current list of retained fields.
+ */
+int
+retfield(char *list[])
+{
+
+	return (ignore1(list, ignore + 1, "retained"));
+}
+
+/*
+ * Add the given header fields to the ignored list.
+ * If no arguments, print the current list of ignored fields.
+ */
+int
+igfield(char *list[])
+{
+
+	return (ignore1(list, ignore, "ignored"));
+}
+
+int
+saveretfield(char *list[])
+{
+
+	return (ignore1(list, saveignore + 1, "retained"));
+}
+
+int
+saveigfield(char *list[])
+{
+
+	return (ignore1(list, saveignore, "ignored"));
+}
+
+int
+ignore1(char *list[], struct ignoretab *tab, const char *which)
+{
+	char field[LINESIZE];
+	int h;
+	struct ignore *igp;
+	char **ap;
+
+	if (*list == NULL)
+		return (igshow(tab, which));
+	for (ap = list; *ap != 0; ap++) {
+		istrncpy(field, *ap, sizeof(field));
+		if (member(field, tab))
+			continue;
+		h = hash(field);
+		igp = calloc(1, sizeof(struct ignore));
+		igp->i_field = calloc((unsigned)strlen(field) + 1,
+		    sizeof(char));
+		strcpy(igp->i_field, field);
+		igp->i_link = tab->i_head[h];
+		tab->i_head[h] = igp;
+		tab->i_count++;
+	}
+	return (0);
+}
+
+/*
+ * Print out all currently retained fields.
+ */
+int
+igshow(struct ignoretab *tab, const char *which)
+{
+	int h;
+	struct ignore *igp;
+	char **ap, **ring;
+
+	if (tab->i_count == 0) {
+		printf("No fields currently being %s.\n", which);
+		return (0);
+	}
+	ring = (char **)salloc((tab->i_count + 1) * sizeof(char *));
+	ap = ring;
+	for (h = 0; h < HSHSIZE; h++)
+		for (igp = tab->i_head[h]; igp != NULL; igp = igp->i_link)
+			*ap++ = igp->i_field;
+	*ap = 0;
+	qsort(ring, tab->i_count, sizeof(char *), igcomp);
+	for (ap = ring; *ap != 0; ap++)
+		printf("%s\n", *ap);
+	return (0);
+}
+
+/*
+ * Compare two names for sorting ignored field list.
+ */
+int
+igcomp(const void *l, const void *r)
+{
+
+	return (strcmp(*(const char **)l, *(const char **)r));
+}