| 1 | /* $NetBSD: mail.c,v 1.16 2003/08/07 09:05:33 agc Exp $ */
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| 2 |
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| 3 | /*-
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| 4 | * Copyright (c) 1991, 1993
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| 5 | * The Regents of the University of California. All rights reserved.
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| 6 | *
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| 7 | * This code is derived from software contributed to Berkeley by
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| 8 | * Kenneth Almquist.
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| 9 | *
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| 10 | * Redistribution and use in source and binary forms, with or without
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| 11 | * modification, are permitted provided that the following conditions
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| 12 | * are met:
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| 13 | * 1. Redistributions of source code must retain the above copyright
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| 14 | * notice, this list of conditions and the following disclaimer.
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright
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| 16 | * notice, this list of conditions and the following disclaimer in the
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| 17 | * documentation and/or other materials provided with the distribution.
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| 18 | * 3. Neither the name of the University nor the names of its contributors
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| 19 | * may be used to endorse or promote products derived from this software
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| 20 | * without specific prior written permission.
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| 21 | *
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| 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 32 | * SUCH DAMAGE.
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| 33 | */
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| 34 |
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| 35 | #ifdef HAVE_SYS_CDEFS_H
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| 36 | #include <sys/cdefs.h>
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| 37 | #endif
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| 38 | #ifndef lint
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| 39 | #if 0
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| 40 | static char sccsid[] = "@(#)mail.c 8.2 (Berkeley) 5/4/95";
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| 41 | #else
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| 42 | __RCSID("$NetBSD: mail.c,v 1.16 2003/08/07 09:05:33 agc Exp $");
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| 43 | #endif
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| 44 | #endif /* not lint */
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| 45 |
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| 46 | /*
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| 47 | * Routines to check for mail. (Perhaps make part of main.c?)
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| 48 | */
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| 49 | #include <sys/types.h>
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| 50 | #include <sys/stat.h>
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| 51 | #include <stdlib.h>
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| 52 |
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| 53 | #include "shell.h"
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| 54 | #include "exec.h" /* defines padvance() */
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| 55 | #include "var.h"
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| 56 | #include "output.h"
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| 57 | #include "memalloc.h"
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| 58 | #include "error.h"
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| 59 | #include "mail.h"
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| 60 |
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| 61 |
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| 62 | #define MAXMBOXES 10
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| 63 |
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| 64 |
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| 65 | STATIC int nmboxes; /* number of mailboxes */
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| 66 | STATIC time_t mailtime[MAXMBOXES]; /* times of mailboxes */
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| 67 |
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| 68 |
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| 69 |
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| 70 | /*
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| 71 | * Print appropriate message(s) if mail has arrived. If the argument is
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| 72 | * nozero, then the value of MAIL has changed, so we just update the
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| 73 | * values.
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| 74 | */
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| 75 |
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| 76 | void
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| 77 | chkmail(int silent)
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| 78 | {
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| 79 | int i;
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| 80 | const char *mpath;
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| 81 | char *p;
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| 82 | char *q;
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| 83 | struct stackmark smark;
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| 84 | struct stat statb;
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| 85 |
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| 86 | if (silent)
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| 87 | nmboxes = 10;
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| 88 | if (nmboxes == 0)
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| 89 | return;
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| 90 | setstackmark(&smark);
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| 91 | mpath = mpathset() ? mpathval() : mailval();
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| 92 | for (i = 0 ; i < nmboxes ; i++) {
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| 93 | p = padvance(&mpath, nullstr);
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| 94 | if (p == NULL)
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| 95 | break;
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| 96 | if (*p == '\0')
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| 97 | continue;
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| 98 | for (q = p ; *q ; q++);
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| 99 | if (q[-1] != '/')
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| 100 | abort();
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| 101 | q[-1] = '\0'; /* delete trailing '/' */
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| 102 | #ifdef notdef /* this is what the System V shell claims to do (it lies) */
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| 103 | if (stat(p, &statb) < 0)
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| 104 | statb.st_mtime = 0;
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| 105 | if (statb.st_mtime > mailtime[i] && ! silent) {
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| 106 | out2str(pathopt ? pathopt : "you have mail");
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| 107 | out2c('\n');
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| 108 | }
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| 109 | mailtime[i] = statb.st_mtime;
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| 110 | #else /* this is what it should do */
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| 111 | if (stat(p, &statb) < 0)
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| 112 | statb.st_size = 0;
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| 113 | if (statb.st_size > mailtime[i] && ! silent) {
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| 114 | out2str(pathopt ? pathopt : "you have mail");
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| 115 | out2c('\n');
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| 116 | }
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| 117 | mailtime[i] = statb.st_size;
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| 118 | #endif
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| 119 | }
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| 120 | nmboxes = i;
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| 121 | popstackmark(&smark);
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| 122 | }
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