Raise WARNS to 6 and silence resulting warnings.
[dragonfly.git] / bin / sh / mail.c
blob658e00a5999703eacd783d61c1fee1a93aabaf23
1 /*-
2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Kenneth Almquist.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
36 * @(#)mail.c 8.2 (Berkeley) 5/4/95
37 * $FreeBSD: src/bin/sh/mail.c,v 1.9.2.2 2002/07/19 04:38:51 tjr Exp $
38 * $DragonFly: src/bin/sh/mail.c,v 1.3 2004/03/19 18:39:41 cpressey Exp $
42 * Routines to check for mail. (Perhaps make part of main.c?)
45 #include "shell.h"
46 #include "exec.h" /* defines padvance() */
47 #include "var.h"
48 #include "output.h"
49 #include "memalloc.h"
50 #include "error.h"
51 #include <sys/types.h>
52 #include <sys/stat.h>
53 #include <stdlib.h>
55 #include "mail.h"
57 #define MAXMBOXES 10
60 STATIC int nmboxes; /* number of mailboxes */
61 STATIC time_t mailtime[MAXMBOXES]; /* times of mailboxes */
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.
71 void
72 chkmail(int silent)
74 int i;
75 const char *mpath;
76 char *p;
77 char *q;
78 struct stackmark smark;
79 struct stat statb;
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');
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');
112 mailtime[i] = statb.st_size;
113 #endif
115 nmboxes = i;
116 popstackmark(&smark);