1 /* $OpenBSD: misc.c,v 1.1 2001/01/21 19:05:52 markus Exp $ */
4 * Copyright (c) 2000 Markus Friedl. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 RCSID("$OpenBSD: misc.c,v 1.1 2001/01/21 19:05:52 markus Exp $");
39 if(*t == '\n' || *t == '\r') {
53 val = fcntl(fd, F_GETFL, 0);
55 error("fcntl(%d, F_GETFL, 0): %s", fd, strerror(errno));
58 if (val & O_NONBLOCK) {
59 debug("fd %d IS O_NONBLOCK", fd);
62 debug("fd %d setting O_NONBLOCK", fd);
64 if (fcntl(fd, F_SETFL, val) == -1)
66 error("fcntl(%d, F_SETFL, O_NONBLOCK): %s",
70 /* Characters considered whitespace in strsep calls. */
71 #define WHITESPACE " \t\r\n"
84 *s = strpbrk(*s, WHITESPACE "=");
88 /* Allow only one '=' to be skipped */
93 *s += strspn(*s + 1, WHITESPACE) + 1;
94 if (*s[0] == '=' && !wspace)
95 *s += strspn(*s + 1, WHITESPACE) + 1;
101 mysignal(int sig, mysig_t act)
103 #ifdef HAVE_SIGACTION
104 struct sigaction sa, osa;
106 if (sigaction(sig, 0, &osa) == -1)
108 if (osa.sa_handler != act) {
109 memset(&sa, 0, sizeof sa);
110 sigemptyset(&sa.sa_mask);
113 if (sigaction(sig, &sa, 0) == -1)
116 return (osa.sa_handler);
118 return (signal(sig, act));