798fbc606d
1) Removed the -B flag (it was stupid on my part) and added a short description indicating how to accomplish the same thing under the "Sending Mail" section of man mail(1). 2) Added a -H flag to dump the headers and exit. It takes optional flags to restrict to old, new, read, unread, and deleted messages (the later being kind of useless - it shares code with something that already had it). 3) Restored the 'Save' command which somehow got mistakenly removed in the last commit and add documentation for it! (My apologies to its author.) 4) Added a 'mkread' command to mark messages as read (the inverse of 'unread'). Should we also have a 'mknew' command? 5) Added a 'smopts' command to keep a database of addresses and sendmail options to be used when sending messages to those addresses. See man mail(1) for a fuller description. 6) Added 'indentpreamble' and 'indentpostscript' variables whose values are inserted before and after a quoted message (~m or ~M escapes). =20 7) Added string formatting abilities for the 'prompt', 'insertpreamble', 'insertpostscript', and header display strings. These strings support all the strftime() format parameters as well as many more specific to mail (see man mail(1)). 8) Fix the -a flag so that it only takes a single filename, unless "mime-attach-list" is defined. This is more conventional and avoids unexpected whitespace issues.
187 lines
4.2 KiB
C
187 lines
4.2 KiB
C
/* $NetBSD: vars.c,v 1.16 2006/10/31 20:07:33 christos Exp $ */
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/*
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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. 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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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)vars.c 8.1 (Berkeley) 6/6/93";
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#else
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__RCSID("$NetBSD: vars.c,v 1.16 2006/10/31 20:07:33 christos Exp $");
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#endif
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#endif /* not lint */
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#include "rcv.h"
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#include <util.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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* Variable handling stuff.
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*/
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/*
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* Assign a value to a variable.
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*/
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void
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assign(const char name[], const char values[])
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{
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struct var *vp;
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int h;
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h = hash(name);
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vp = lookup(name);
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if (vp == NULL) {
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vp = (struct var *) ecalloc(1, sizeof *vp);
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vp->v_name = vcopy(name);
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vp->v_link = variables[h];
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variables[h] = vp;
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}
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else
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v_free(vp->v_value);
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vp->v_value = vcopy(values);
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}
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/*
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* Free up a variable string. We do not bother to allocate
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* strings whose value is "" since they are expected to be frequent.
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* Thus, we cannot free same!
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*/
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void
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v_free(char *cp)
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{
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if (*cp)
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free(cp);
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}
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/*
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* Copy a variable value into permanent (ie, not collected after each
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* command) space. Do not bother to alloc space for ""
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*/
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char *
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vcopy(const char str[])
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{
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char *new;
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size_t len;
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if (*str == '\0')
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return estrdup("");
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len = strlen(str) + 1;
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new = emalloc(len);
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(void)memmove(new, str, len);
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return new;
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}
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/*
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* Get the value of a variable and return it.
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* Look in the environment if its not available locally.
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*/
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char *
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value(const char name[])
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{
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struct var *vp;
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if ((vp = lookup(name)) == NULL)
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return(getenv(name));
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return(vp->v_value);
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}
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/*
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* Locate a variable and return its variable
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* node.
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*/
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struct var *
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lookup(const char name[])
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{
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struct var *vp;
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for (vp = variables[hash(name)]; vp != NULL; vp = vp->v_link)
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if (*vp->v_name == *name && equal(vp->v_name, name))
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return(vp);
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return(NULL);
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}
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/*
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* Locate a group name and return it.
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*/
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struct grouphead *
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findgroup(char name[])
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{
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struct grouphead *gh;
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for (gh = groups[hash(name)]; gh != NULL; gh = gh->g_link)
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if (*gh->g_name == *name && equal(gh->g_name, name))
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return(gh);
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return(NULL);
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}
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/*
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* Print a group out on stdout
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*/
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void
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printgroup(char name[])
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{
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struct grouphead *gh;
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struct group *gp;
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if ((gh = findgroup(name)) == NULL) {
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(void)printf("\"%s\": not a group\n", name);
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return;
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}
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(void)printf("%s\t", gh->g_name);
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for (gp = gh->g_list; gp != NULL; gp = gp->ge_link)
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(void)printf(" %s", gp->ge_name);
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(void)putchar('\n');
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}
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/*
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* Hash the passed string and return an index into
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* the variable or group hash table.
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*/
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int
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hash(const char *name)
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{
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int h = 0;
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while (*name) {
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h <<= 2;
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h += *name++;
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}
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if (h < 0 && (h = -h) < 0)
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h = 0;
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return (h % HSHSIZE);
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}
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