9ce73e9018
Also take a stab at cleaning up BDECFLAGS and convert all uses of NOSTR, NIL, NONE, NOVAR, NOGRP, NOGE to NULL. Also kill 'register' to get diffs somewhat closer to OpenBSD/NetBSD. There are no functional changes however. Reviewed by: nra (visual inspection)
818 lines
16 KiB
C
818 lines
16 KiB
C
/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)list.c 8.2 (Berkeley) 4/19/94";
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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include "rcv.h"
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#include <ctype.h>
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#include "extern.h"
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/*
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* Mail -- a mail program
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*
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* Message list handling.
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*/
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/*
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* Convert the user string of message numbers and
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* store the numbers into vector.
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*
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* Returns the count of messages picked up or -1 on error.
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*/
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int
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getmsglist(buf, vector, flags)
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char *buf;
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int *vector, flags;
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{
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int *ip;
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struct message *mp;
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if (msgCount == 0) {
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*vector = 0;
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return (0);
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}
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if (markall(buf, flags) < 0)
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return (-1);
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ip = vector;
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for (mp = &message[0]; mp < &message[msgCount]; mp++)
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if (mp->m_flag & MMARK)
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*ip++ = mp - &message[0] + 1;
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*ip = 0;
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return (ip - vector);
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}
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/*
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* Mark all messages that the user wanted from the command
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* line in the message structure. Return 0 on success, -1
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* on error.
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*/
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/*
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* Bit values for colon modifiers.
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*/
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#define CMNEW 01 /* New messages */
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#define CMOLD 02 /* Old messages */
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#define CMUNREAD 04 /* Unread messages */
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#define CMDELETED 010 /* Deleted messages */
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#define CMREAD 020 /* Read messages */
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/*
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* The following table describes the letters which can follow
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* the colon and gives the corresponding modifier bit.
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*/
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struct coltab {
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char co_char; /* What to find past : */
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int co_bit; /* Associated modifier bit */
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int co_mask; /* m_status bits to mask */
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int co_equal; /* ... must equal this */
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} coltab[] = {
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{ 'n', CMNEW, MNEW, MNEW },
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{ 'o', CMOLD, MNEW, 0 },
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{ 'u', CMUNREAD, MREAD, 0 },
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{ 'd', CMDELETED, MDELETED, MDELETED},
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{ 'r', CMREAD, MREAD, MREAD },
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{ 0, 0, 0, 0 }
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};
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static int lastcolmod;
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int
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markall(buf, f)
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char buf[];
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int f;
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{
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char **np;
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int i;
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struct message *mp;
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char *namelist[NMLSIZE], *bufp;
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int tok, beg, mc, star, other, valdot, colmod, colresult;
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valdot = dot - &message[0] + 1;
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colmod = 0;
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for (i = 1; i <= msgCount; i++)
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unmark(i);
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bufp = buf;
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mc = 0;
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np = &namelist[0];
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scaninit();
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tok = scan(&bufp);
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star = 0;
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other = 0;
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beg = 0;
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while (tok != TEOL) {
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switch (tok) {
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case TNUMBER:
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number:
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if (star) {
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printf("No numbers mixed with *\n");
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return (-1);
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}
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mc++;
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other++;
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if (beg != 0) {
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if (check(lexnumber, f))
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return (-1);
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for (i = beg; i <= lexnumber; i++)
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if (f == MDELETED || (message[i - 1].m_flag & MDELETED) == 0)
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mark(i);
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beg = 0;
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break;
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}
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beg = lexnumber;
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if (check(beg, f))
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return (-1);
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tok = scan(&bufp);
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regret(tok);
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if (tok != TDASH) {
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mark(beg);
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beg = 0;
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}
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break;
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case TPLUS:
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if (beg != 0) {
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printf("Non-numeric second argument\n");
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return (-1);
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}
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i = valdot;
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do {
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i++;
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if (i > msgCount) {
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printf("Referencing beyond EOF\n");
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return (-1);
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}
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} while ((message[i - 1].m_flag & MDELETED) != f);
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mark(i);
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break;
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case TDASH:
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if (beg == 0) {
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i = valdot;
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do {
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i--;
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if (i <= 0) {
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printf("Referencing before 1\n");
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return (-1);
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}
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} while ((message[i - 1].m_flag & MDELETED) != f);
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mark(i);
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}
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break;
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case TSTRING:
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if (beg != 0) {
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printf("Non-numeric second argument\n");
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return (-1);
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}
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other++;
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if (lexstring[0] == ':') {
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colresult = evalcol(lexstring[1]);
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if (colresult == 0) {
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printf("Unknown colon modifier \"%s\"\n",
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lexstring);
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return (-1);
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}
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colmod |= colresult;
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}
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else
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*np++ = savestr(lexstring);
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break;
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case TDOLLAR:
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case TUP:
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case TDOT:
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lexnumber = metamess(lexstring[0], f);
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if (lexnumber == -1)
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return (-1);
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goto number;
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case TSTAR:
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if (other) {
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printf("Can't mix \"*\" with anything\n");
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return (-1);
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}
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star++;
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break;
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case TERROR:
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return (-1);
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}
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tok = scan(&bufp);
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}
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lastcolmod = colmod;
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*np = NULL;
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mc = 0;
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if (star) {
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for (i = 0; i < msgCount; i++)
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if ((message[i].m_flag & MDELETED) == f) {
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mark(i+1);
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mc++;
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}
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if (mc == 0) {
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printf("No applicable messages.\n");
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return (-1);
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}
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return (0);
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}
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/*
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* If no numbers were given, mark all of the messages,
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* so that we can unmark any whose sender was not selected
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* if any user names were given.
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*/
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if ((np > namelist || colmod != 0) && mc == 0)
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for (i = 1; i <= msgCount; i++)
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if ((message[i-1].m_flag & MDELETED) == f)
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mark(i);
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/*
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* If any names were given, go through and eliminate any
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* messages whose senders were not requested.
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*/
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if (np > namelist) {
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for (i = 1; i <= msgCount; i++) {
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for (mc = 0, np = &namelist[0]; *np != NULL; np++)
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if (**np == '/') {
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if (matchsubj(*np, i)) {
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mc++;
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break;
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}
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}
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else {
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if (matchsender(*np, i)) {
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mc++;
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break;
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}
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}
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if (mc == 0)
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unmark(i);
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}
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/*
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* Make sure we got some decent messages.
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*/
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mc = 0;
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for (i = 1; i <= msgCount; i++)
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if (message[i-1].m_flag & MMARK) {
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mc++;
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break;
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}
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if (mc == 0) {
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printf("No applicable messages from {%s",
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namelist[0]);
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for (np = &namelist[1]; *np != NULL; np++)
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printf(", %s", *np);
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printf("}\n");
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return (-1);
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}
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}
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/*
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* If any colon modifiers were given, go through and
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* unmark any messages which do not satisfy the modifiers.
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*/
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if (colmod != 0) {
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for (i = 1; i <= msgCount; i++) {
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struct coltab *colp;
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mp = &message[i - 1];
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for (colp = &coltab[0]; colp->co_char != '\0'; colp++)
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if (colp->co_bit & colmod)
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if ((mp->m_flag & colp->co_mask)
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!= colp->co_equal)
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unmark(i);
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}
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for (mp = &message[0]; mp < &message[msgCount]; mp++)
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if (mp->m_flag & MMARK)
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break;
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if (mp >= &message[msgCount]) {
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struct coltab *colp;
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printf("No messages satisfy");
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for (colp = &coltab[0]; colp->co_char != '\0'; colp++)
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if (colp->co_bit & colmod)
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printf(" :%c", colp->co_char);
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printf("\n");
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return (-1);
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}
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}
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return (0);
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}
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/*
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* Turn the character after a colon modifier into a bit
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* value.
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*/
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int
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evalcol(col)
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int col;
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{
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struct coltab *colp;
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if (col == 0)
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return (lastcolmod);
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for (colp = &coltab[0]; colp->co_char != '\0'; colp++)
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if (colp->co_char == col)
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return (colp->co_bit);
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return (0);
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}
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/*
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* Check the passed message number for legality and proper flags.
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* If f is MDELETED, then either kind will do. Otherwise, the message
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* has to be undeleted.
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*/
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int
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check(mesg, f)
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int mesg, f;
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{
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struct message *mp;
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if (mesg < 1 || mesg > msgCount) {
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printf("%d: Invalid message number\n", mesg);
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return (-1);
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}
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mp = &message[mesg-1];
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if (f != MDELETED && (mp->m_flag & MDELETED) != 0) {
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printf("%d: Inappropriate message\n", mesg);
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return (-1);
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}
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return (0);
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}
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/*
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* Scan out the list of string arguments, shell style
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* for a RAWLIST.
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*/
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int
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getrawlist(line, argv, argc)
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char line[];
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char **argv;
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int argc;
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{
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char c, *cp, *cp2, quotec;
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int argn;
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char *linebuf;
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size_t linebufsize = BUFSIZ;
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if ((linebuf = malloc(linebufsize)) == NULL)
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err(1, "Out of memory");
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argn = 0;
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cp = line;
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for (;;) {
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for (; *cp == ' ' || *cp == '\t'; cp++)
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;
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if (*cp == '\0')
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break;
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if (argn >= argc - 1) {
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printf(
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"Too many elements in the list; excess discarded.\n");
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break;
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}
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cp2 = linebuf;
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quotec = '\0';
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while ((c = *cp) != '\0') {
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/* Allocate more space if necessary */
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if (cp2 - linebuf == linebufsize - 1) {
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linebufsize += BUFSIZ;
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if ((linebuf = realloc(linebuf, linebufsize)) == NULL)
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err(1, "Out of memory");
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cp2 = linebuf + linebufsize - BUFSIZ - 1;
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}
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cp++;
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if (quotec != '\0') {
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if (c == quotec)
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quotec = '\0';
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else if (c == '\\')
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switch (c = *cp++) {
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case '\0':
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*cp2++ = '\\';
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cp--;
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break;
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case '0': case '1': case '2': case '3':
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case '4': case '5': case '6': case '7':
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c -= '0';
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if (*cp >= '0' && *cp <= '7')
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c = c * 8 + *cp++ - '0';
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if (*cp >= '0' && *cp <= '7')
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c = c * 8 + *cp++ - '0';
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*cp2++ = c;
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break;
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case 'b':
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*cp2++ = '\b';
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break;
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case 'f':
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*cp2++ = '\f';
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break;
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case 'n':
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*cp2++ = '\n';
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break;
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case 'r':
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*cp2++ = '\r';
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break;
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case 't':
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*cp2++ = '\t';
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break;
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case 'v':
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*cp2++ = '\v';
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break;
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default:
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*cp2++ = c;
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}
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else if (c == '^') {
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c = *cp++;
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if (c == '?')
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*cp2++ = '\177';
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/* null doesn't show up anyway */
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else if ((c >= 'A' && c <= '_') ||
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(c >= 'a' && c <= 'z'))
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*cp2++ = c & 037;
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else {
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*cp2++ = '^';
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cp--;
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}
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} else
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*cp2++ = c;
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} else if (c == '"' || c == '\'')
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quotec = c;
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else if (c == ' ' || c == '\t')
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break;
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else
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*cp2++ = c;
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}
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*cp2 = '\0';
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argv[argn++] = savestr(linebuf);
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}
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argv[argn] = NULL;
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(void)free(linebuf);
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return (argn);
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}
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/*
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* scan out a single lexical item and return its token number,
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* updating the string pointer passed **p. Also, store the value
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* of the number or string scanned in lexnumber or lexstring as
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* appropriate. In any event, store the scanned `thing' in lexstring.
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*/
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struct lex {
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char l_char;
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char l_token;
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} singles[] = {
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{ '$', TDOLLAR },
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{ '.', TDOT },
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{ '^', TUP },
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{ '*', TSTAR },
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{ '-', TDASH },
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{ '+', TPLUS },
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{ '(', TOPEN },
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{ ')', TCLOSE },
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{ 0, 0 }
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};
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int
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scan(sp)
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char **sp;
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{
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char *cp, *cp2;
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int c;
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struct lex *lp;
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int quotec;
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if (regretp >= 0) {
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strcpy(lexstring, string_stack[regretp]);
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lexnumber = numberstack[regretp];
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return (regretstack[regretp--]);
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}
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cp = *sp;
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cp2 = lexstring;
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c = *cp++;
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/*
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* strip away leading white space.
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*/
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while (c == ' ' || c == '\t')
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c = *cp++;
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/*
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* If no characters remain, we are at end of line,
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* so report that.
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*/
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if (c == '\0') {
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*sp = --cp;
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return (TEOL);
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}
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/*
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* If the leading character is a digit, scan
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* the number and convert it on the fly.
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* Return TNUMBER when done.
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*/
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|
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if (isdigit(c)) {
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lexnumber = 0;
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while (isdigit(c)) {
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lexnumber = lexnumber*10 + c - '0';
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*cp2++ = c;
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c = *cp++;
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}
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*cp2 = '\0';
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*sp = --cp;
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return (TNUMBER);
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}
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/*
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* Check for single character tokens; return such
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* if found.
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*/
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for (lp = &singles[0]; lp->l_char != '\0'; lp++)
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if (c == lp->l_char) {
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lexstring[0] = c;
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|
lexstring[1] = '\0';
|
|
*sp = cp;
|
|
return (lp->l_token);
|
|
}
|
|
|
|
/*
|
|
* We've got a string! Copy all the characters
|
|
* of the string into lexstring, until we see
|
|
* a null, space, or tab.
|
|
* If the lead character is a " or ', save it
|
|
* and scan until you get another.
|
|
*/
|
|
|
|
quotec = 0;
|
|
if (c == '\'' || c == '"') {
|
|
quotec = c;
|
|
c = *cp++;
|
|
}
|
|
while (c != '\0') {
|
|
if (c == quotec) {
|
|
cp++;
|
|
break;
|
|
}
|
|
if (quotec == 0 && (c == ' ' || c == '\t'))
|
|
break;
|
|
if (cp2 - lexstring < STRINGLEN-1)
|
|
*cp2++ = c;
|
|
c = *cp++;
|
|
}
|
|
if (quotec && c == '\0') {
|
|
fprintf(stderr, "Missing %c\n", quotec);
|
|
return (TERROR);
|
|
}
|
|
*sp = --cp;
|
|
*cp2 = '\0';
|
|
return (TSTRING);
|
|
}
|
|
|
|
/*
|
|
* Unscan the named token by pushing it onto the regret stack.
|
|
*/
|
|
void
|
|
regret(token)
|
|
int token;
|
|
{
|
|
if (++regretp >= REGDEP)
|
|
errx(1, "Too many regrets");
|
|
regretstack[regretp] = token;
|
|
lexstring[STRINGLEN-1] = '\0';
|
|
string_stack[regretp] = savestr(lexstring);
|
|
numberstack[regretp] = lexnumber;
|
|
}
|
|
|
|
/*
|
|
* Reset all the scanner global variables.
|
|
*/
|
|
void
|
|
scaninit()
|
|
{
|
|
regretp = -1;
|
|
}
|
|
|
|
/*
|
|
* Find the first message whose flags & m == f and return
|
|
* its message number.
|
|
*/
|
|
int
|
|
first(f, m)
|
|
int f, m;
|
|
{
|
|
struct message *mp;
|
|
|
|
if (msgCount == 0)
|
|
return (0);
|
|
f &= MDELETED;
|
|
m &= MDELETED;
|
|
for (mp = dot; mp < &message[msgCount]; mp++)
|
|
if ((mp->m_flag & m) == f)
|
|
return (mp - message + 1);
|
|
for (mp = dot-1; mp >= &message[0]; mp--)
|
|
if ((mp->m_flag & m) == f)
|
|
return (mp - message + 1);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* See if the passed name sent the passed message number. Return true
|
|
* if so.
|
|
*/
|
|
int
|
|
matchsender(str, mesg)
|
|
char *str;
|
|
int mesg;
|
|
{
|
|
char *cp, *cp2, *backup;
|
|
|
|
if (*str == '\0') /* null string matches nothing instead of everything */
|
|
return (0);
|
|
backup = cp2 = nameof(&message[mesg - 1], 0);
|
|
cp = str;
|
|
while (*cp2 != '\0') {
|
|
if (*cp == '\0')
|
|
return (1);
|
|
if (toupper(*cp++) != toupper(*cp2++)) {
|
|
cp2 = ++backup;
|
|
cp = str;
|
|
}
|
|
}
|
|
return (*cp == '\0');
|
|
}
|
|
|
|
/*
|
|
* See if the given string matches inside the subject field of the
|
|
* given message. For the purpose of the scan, we ignore case differences.
|
|
* If it does, return true. The string search argument is assumed to
|
|
* have the form "/search-string." If it is of the form "/," we use the
|
|
* previous search string.
|
|
*/
|
|
|
|
char lastscan[STRINGLEN];
|
|
int
|
|
matchsubj(str, mesg)
|
|
char *str;
|
|
int mesg;
|
|
{
|
|
struct message *mp;
|
|
char *cp, *cp2, *backup;
|
|
|
|
str++;
|
|
if (*str == '\0')
|
|
str = lastscan;
|
|
else
|
|
strlcpy(lastscan, str, sizeof(lastscan));
|
|
mp = &message[mesg-1];
|
|
|
|
/*
|
|
* Now look, ignoring case, for the word in the string.
|
|
*/
|
|
|
|
if (value("searchheaders") && (cp = strchr(str, ':')) != NULL) {
|
|
*cp++ = '\0';
|
|
cp2 = hfield(str, mp);
|
|
cp[-1] = ':';
|
|
str = cp;
|
|
} else {
|
|
cp = str;
|
|
cp2 = hfield("subject", mp);
|
|
}
|
|
if (cp2 == NULL)
|
|
return (0);
|
|
backup = cp2;
|
|
while (*cp2 != '\0') {
|
|
if (*cp == '\0')
|
|
return (1);
|
|
if (toupper(*cp++) != toupper(*cp2++)) {
|
|
cp2 = ++backup;
|
|
cp = str;
|
|
}
|
|
}
|
|
return (*cp == 0);
|
|
}
|
|
|
|
/*
|
|
* Mark the named message by setting its mark bit.
|
|
*/
|
|
void
|
|
mark(mesg)
|
|
int mesg;
|
|
{
|
|
int i;
|
|
|
|
i = mesg;
|
|
if (i < 1 || i > msgCount)
|
|
errx(1, "Bad message number to mark");
|
|
message[i-1].m_flag |= MMARK;
|
|
}
|
|
|
|
/*
|
|
* Unmark the named message.
|
|
*/
|
|
void
|
|
unmark(mesg)
|
|
int mesg;
|
|
{
|
|
int i;
|
|
|
|
i = mesg;
|
|
if (i < 1 || i > msgCount)
|
|
errx(1, "Bad message number to unmark");
|
|
message[i-1].m_flag &= ~MMARK;
|
|
}
|
|
|
|
/*
|
|
* Return the message number corresponding to the passed meta character.
|
|
*/
|
|
int
|
|
metamess(meta, f)
|
|
int meta, f;
|
|
{
|
|
int c, m;
|
|
struct message *mp;
|
|
|
|
c = meta;
|
|
switch (c) {
|
|
case '^':
|
|
/*
|
|
* First 'good' message left.
|
|
*/
|
|
for (mp = &message[0]; mp < &message[msgCount]; mp++)
|
|
if ((mp->m_flag & MDELETED) == f)
|
|
return (mp - &message[0] + 1);
|
|
printf("No applicable messages\n");
|
|
return (-1);
|
|
|
|
case '$':
|
|
/*
|
|
* Last 'good message left.
|
|
*/
|
|
for (mp = &message[msgCount-1]; mp >= &message[0]; mp--)
|
|
if ((mp->m_flag & MDELETED) == f)
|
|
return (mp - &message[0] + 1);
|
|
printf("No applicable messages\n");
|
|
return (-1);
|
|
|
|
case '.':
|
|
/*
|
|
* Current message.
|
|
*/
|
|
m = dot - &message[0] + 1;
|
|
if ((dot->m_flag & MDELETED) != f) {
|
|
printf("%d: Inappropriate message\n", m);
|
|
return (-1);
|
|
}
|
|
return (m);
|
|
|
|
default:
|
|
printf("Unknown metachar (%c)\n", c);
|
|
return (-1);
|
|
}
|
|
}
|