mail.c revision 149017
117987Speter/*- 250471Speter * Copyright (c) 1991, 1993 31556Srgrimes * The Regents of the University of California. All rights reserved. 41556Srgrimes * 535783Sbde * This code is derived from software contributed to Berkeley by 61556Srgrimes * Kenneth Almquist. 786692Sknu * 886505Sknu * Redistribution and use in source and binary forms, with or without 935783Sbde * modification, are permitted provided that the following conditions 10124751Sru * are met: 1135783Sbde * 1. Redistributions of source code must retain the above copyright 1217987Speter * notice, this list of conditions and the following disclaimer. 1351090Ssheldonh * 2. Redistributions in binary form must reproduce the above copyright 1451090Ssheldonh * notice, this list of conditions and the following disclaimer in the 1551090Ssheldonh * documentation and/or other materials provided with the distribution. 1651090Ssheldonh * 4. Neither the name of the University nor the names of its contributors 1725903Ssteve * may be used to endorse or promote products derived from this software 1825221Ssteve * without specific prior written permission. 1917987Speter * 201556Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 211556Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2217988Speter * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2317988Speter * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24114500Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25114500Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2617987Speter * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2786505Sknu * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2886692Sknu * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 291556Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3030113Sjkh * SUCH DAMAGE. 3135783Sbde */ 3230113Sjkh 331556Srgrimes#ifndef lint 3437456Sbde#if 0 3537456Sbdestatic char sccsid[] = "@(#)mail.c 8.2 (Berkeley) 5/4/95"; 3630113Sjkh#endif 3725903Ssteve#endif /* not lint */ 3817987Speter#include <sys/cdefs.h> 391556Srgrimes__FBSDID("$FreeBSD: head/bin/sh/mail.c 149017 2005-08-13 08:26:58Z stefanf $"); 4025903Ssteve 4125903Ssteve/* 4217987Speter * Routines to check for mail. (Perhaps make part of main.c?) 431556Srgrimes */ 4428729Sbde 4528729Sbde#include "shell.h" 4628729Sbde#include "exec.h" /* defines padvance() */ 4728729Sbde#include "mail.h" 4828729Sbde#include "var.h" 4928729Sbde#include "output.h" 5028729Sbde#include "memalloc.h" 5128729Sbde#include "error.h" 5228729Sbde#include <sys/types.h> 5330113Sjkh#include <sys/stat.h> 5417987Speter#include <stdlib.h> 551556Srgrimes 561556Srgrimes 5730113Sjkh#define MAXMBOXES 10 581556Srgrimes 591556Srgrimes 601556SrgrimesSTATIC int nmboxes; /* number of mailboxes */ 6125903SsteveSTATIC time_t mailtime[MAXMBOXES]; /* times of mailboxes */ 6225903Ssteve 631556Srgrimes 641556Srgrimes 65/* 66 * Print appropriate message(s) if mail has arrived. If the argument is 67 * nozero, then the value of MAIL has changed, so we just update the 68 * values. 69 */ 70 71void 72chkmail(int silent) 73{ 74 int i; 75 char *mpath; 76 char *p; 77 char *q; 78 struct stackmark smark; 79 struct stat statb; 80 81 if (silent) 82 nmboxes = 10; 83 if (nmboxes == 0) 84 return; 85 setstackmark(&smark); 86 mpath = mpathset()? mpathval() : mailval(); 87 for (i = 0 ; i < nmboxes ; i++) { 88 p = padvance(&mpath, nullstr); 89 if (p == NULL) 90 break; 91 if (*p == '\0') 92 continue; 93 for (q = p ; *q ; q++); 94 if (q[-1] != '/') 95 abort(); 96 q[-1] = '\0'; /* delete trailing '/' */ 97#ifdef notdef /* this is what the System V shell claims to do (it lies) */ 98 if (stat(p, &statb) < 0) 99 statb.st_mtime = 0; 100 if (statb.st_mtime > mailtime[i] && ! silent) { 101 out2str(pathopt? pathopt : "you have mail"); 102 out2c('\n'); 103 } 104 mailtime[i] = statb.st_mtime; 105#else /* this is what it should do */ 106 if (stat(p, &statb) < 0) 107 statb.st_size = 0; 108 if (statb.st_size > mailtime[i] && ! silent) { 109 out2str(pathopt? pathopt : "you have mail"); 110 out2c('\n'); 111 } 112 mailtime[i] = statb.st_size; 113#endif 114 } 115 nmboxes = i; 116 popstackmark(&smark); 117} 118