2 * Copyright (c) 1980, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#) Copyright (c) 1980, 1988, 1993 The Regents of the University of California. All rights reserved.
34 * @(#)from.c 8.1 (Berkeley) 6/6/93
35 * $FreeBSD: src/usr.bin/from/from.c,v 1.8.2.1 2000/10/06 08:19:19 ru Exp $
36 * $DragonFly: src/usr.bin/from/from.c,v 1.5 2005/04/22 15:36:39 liamfoy Exp $
39 #include <sys/types.h>
50 static int match(char *, char *);
51 static void usage(void);
54 main(int argc, char **argv)
57 int ch, count, newline;
60 #if MAXPATHLEN > BUFSIZ
68 while ((ch = getopt(argc, argv, "cf:s:")) != -1)
78 for (p = sender; *p; ++p)
89 snprintf(buf, sizeof(buf), "%s/%s", _PATH_MAILDIR, *argv);
92 if ((file = getenv("MAIL")) == NULL) {
93 if (!(pwd = getpwuid(getuid())))
94 errx(1, "no password file entry for you");
96 snprintf(buf, sizeof(buf),
97 "%s/%s", _PATH_MAILDIR, file);
103 /* read from stdin */
104 if (strcmp(file, "-") == 0) {
106 else if (freopen(file, "r", stdin) == NULL) {
107 err(1, "can't read %s", file);
109 for (newline = 1; fgets(buf, sizeof(buf), stdin);) {
114 if (newline && !strncmp(buf, "From ", 5) &&
115 (!sender || match(buf + 5, sender))) {
124 printf("There %s %d message%s in your incoming mailbox.\n",
125 count == 1 ? "is" : "are", count, count == 1 ? "" : "s");
132 fprintf(stderr, "usage: from [-c] [-f file] [-s sender] [user]\n");
137 match(char *line, char *sender)
139 char ch, pch, first, *p, *t;
141 for (first = *sender++;;) {
142 if (isspace(ch = *line))
148 for (p = sender, t = line;;) {