1 /* $NetBSD: run.c,v 1.14 2016/04/04 15:52:56 christos Exp $ */
4 * Copyright (c) 2015 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
35 #include <sys/cdefs.h>
36 __RCSID("$NetBSD: run.c,v 1.14 2016/04/04 15:52:56 christos Exp $");
51 #include <netinet/in.h>
59 extern char **environ;
62 run(const char *cmd, const char *name, ...)
68 char buf[10240], *res;
74 for (i = 3; i < __arraycount(argv) &&
75 (argv[i] = va_arg(ap, char *)) != NULL; i++)
83 r = snprintf(buf, sizeof(buf), "run %s [", controlprog);
84 if (r == -1 || (z = (size_t)r) >= sizeof(buf))
86 for (i = 0; argv[i]; i++) {
87 r = snprintf(buf + z, sizeof(buf) - z, "%s%s",
88 argv[i], argv[i + 1] ? " " : "");
89 if (r == -1 || (z += (size_t)r) >= sizeof(buf))
92 (*lfun)(LOG_DEBUG, "%s]", buf);
95 fp = popenve(controlprog, __UNCONST(argv), environ, "r");
97 (*lfun)(LOG_ERR, "popen %s failed (%m)", controlprog);
100 if (fgets(buf, sizeof(buf), fp) != NULL)
106 (*lfun)(LOG_DEBUG, "%s returns %s", cmd, res);
111 run_flush(const struct conf *c)
113 free(run("flush", c->c_name, NULL));
117 run_change(const char *how, const struct conf *c, char *id, size_t len)
120 char poname[64], adname[128], maskname[32], *rv;
123 switch (c->c_proto) {
134 (*lfun)(LOG_ERR, "%s: bad protocol %d", __func__, c->c_proto);
139 snprintf(poname, sizeof(poname), "%d", c->c_port);
143 snprintf(maskname, sizeof(maskname), "%d", c->c_lmask);
144 sockaddr_snprintf(adname, sizeof(adname), "%a", (const void *)&c->c_ss);
146 rv = run(how, c->c_name, prname, adname, maskname, poname, id, NULL);
150 rv[strcspn(rv, "\n")] = '\0';
151 off = strncmp(rv, "OK ", 3) == 0 ? 3 : 0;
152 strlcpy(id, rv + off, len);