FreeBSD-5.3/usr.bin/mail/cmd2.c
/*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 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: src/usr.bin/mail/cmd2.c,v 1.9 2002/06/30 05:25:06 obrien Exp $");
#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(msgvec)
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(str)
char str[];
{
return (save1(str, 1, "save", saveignore));
}
/*
* Copy a message to a file without affected its saved-ness
*/
int
copycmd(str)
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(str, mark, cmd, ignore)
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(str)
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(linebuf, flag)
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(msgvec)
int msgvec[];
{
delm(msgvec);
return (0);
}
/*
* Delete messages, then type the new dot.
*/
int
deltype(msgvec)
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(msgvec)
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(msgvec)
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()
{
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(argv)
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(n)
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(list)
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(list)
char *list[];
{
return (ignore1(list, ignore, "ignored"));
}
int
saveretfield(list)
char *list[];
{
return (ignore1(list, saveignore + 1, "retained"));
}
int
saveigfield(list)
char *list[];
{
return (ignore1(list, saveignore, "ignored"));
}
int
ignore1(list, tab, which)
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(tab, which)
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(l, r)
const void *l, *r;
{
return (strcmp(*(const char **)l, *(const char **)r));
}