2 * Copyright (c) 2003 Matthew Dillon <dillon@backplane.com>
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.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $DragonFly: src/bin/varsym/varsym.c,v 1.4 2003/12/11 20:33:49 dillon Exp $
34 #include <sys/varsym.h>
36 static void usage(void);
37 static void dumpvars(char *buf, int bytes);
40 main(int ac, char **av)
43 int mask = VARSYM_ALL_MASK;
44 int level = VARSYM_USER;
49 while ((i = getopt(ac, av, "adhpqsu")) != -1) {
58 mask = VARSYM_PROC_MASK;
65 mask = VARSYM_SYS_MASK;
69 mask = VARSYM_USER_MASK;
85 bytes = varsym_list(level, buf, sizeof(buf), &marker);
86 if (bytes < 0) /* error occured */
89 if (marker < 0) /* no more vars */
93 fprintf(stderr, "varsym_list(): %s\n", strerror(errno));
96 for ( ; optind < ac; optind++) {
97 char *name = av[optind];
98 char *data = strchr(name, '=');
100 char buf[MAXVARSYM_DATA];
106 error = varsym_set(level, name, NULL);
109 error = varsym_set(level, name, data);
112 error = varsym_get(mask, name, buf, sizeof(buf));
113 if (error >= 0 && error <= (int)sizeof(buf)) {
119 if (error < 0 && verboseOpt)
120 fprintf(stderr, "%s: %s\n", name, strerror(errno));
127 dumpvars(char *buf, int bytes)
134 for (b = i = 0; i < bytes; ++i) {
140 printf("%s=%s\n", vname, vdata);
141 vname = vdata = NULL;
151 fprintf(stderr, "usage: varsym: [-aqdsup] var[=data]\n");