NetBSD/sbin/modload/main.c

289 lines
7.2 KiB
C

/* $NetBSD: main.c,v 1.13 2009/06/11 08:12:00 wiz Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: main.c,v 1.13 2009/06/11 08:12:00 wiz Exp $");
#endif /* !lint */
#include <sys/module.h>
#include <sys/queue.h>
#include <assert.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <err.h>
#include <prop/proplib.h>
int main(int, char **);
static void parse_bool_param(prop_dictionary_t, const char *,
const char *);
static void parse_int_param(prop_dictionary_t, const char *,
const char *);
static void parse_param(prop_dictionary_t, const char *,
void (*)(prop_dictionary_t, const char *,
const char *));
static void parse_string_param(prop_dictionary_t, const char *,
const char *);
static void usage(void) __dead;
static void merge_dicts(prop_dictionary_t, const prop_dictionary_t);
int
main(int argc, char **argv)
{
SIMPLEQ_HEAD(del_head, del_item) del_head;
modctl_load_t cmdargs;
prop_dictionary_t ext_props, props;
bool del_props, merge_props, output_props;
const char *ext_file;
char *propsstr;
int ch;
int flags;
struct del_item {
SIMPLEQ_ENTRY(del_item) del_items;
const char *del_key;
} *delp;
SIMPLEQ_INIT(&del_head);
ext_file = NULL;
ext_props = NULL;
props = prop_dictionary_create();
del_props = merge_props = output_props = false;
flags = 0;
while ((ch = getopt(argc, argv, "Pb:d:fi:m:ps:")) != -1) {
switch (ch) {
case 'P':
flags |= MODCTL_NO_PROP;
break;
case 'b':
parse_param(props, optarg, parse_bool_param);
break;
case 'd':
del_props = true;
delp = malloc(sizeof(struct del_item));
if (delp == NULL)
errx(EXIT_FAILURE, "Out of memory");
delp->del_key = optarg;
SIMPLEQ_INSERT_TAIL(&del_head, delp, del_items);
break;
case 'f':
flags |= MODCTL_LOAD_FORCE;
break;
case 'i':
parse_param(props, optarg, parse_int_param);
break;
case 'm':
merge_props = true;
ext_file = optarg;
break;
case 'p':
output_props = true;
break;
case 's':
parse_param(props, optarg, parse_string_param);
break;
default:
usage();
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
propsstr = prop_dictionary_externalize(props);
if (propsstr == NULL)
errx(EXIT_FAILURE, "Failed to process properties");
if (output_props) {
if (merge_props) {
ext_props =
prop_dictionary_internalize_from_file(ext_file);
if (ext_props == NULL) {
errx(EXIT_FAILURE, "Failed to read existing "
"property list");
}
free(propsstr);
merge_dicts(ext_props, props);
if (del_props)
SIMPLEQ_FOREACH(delp, &del_head, del_items)
prop_dictionary_remove(ext_props,
delp->del_key);
propsstr = prop_dictionary_externalize(ext_props);
if (propsstr == NULL)
errx(EXIT_FAILURE, "Failed to process "
"properties");
}
fputs(propsstr, stdout);
} else {
if (argc != 1)
usage();
cmdargs.ml_filename = argv[0];
cmdargs.ml_flags = flags;
cmdargs.ml_props = propsstr;
cmdargs.ml_propslen = strlen(propsstr);
if (modctl(MODCTL_LOAD, &cmdargs)) {
err(EXIT_FAILURE, NULL);
}
}
free(propsstr);
prop_object_release(props);
exit(EXIT_SUCCESS);
}
static void
parse_bool_param(prop_dictionary_t props, const char *name,
const char *value)
{
bool boolvalue;
assert(name != NULL);
assert(value != NULL);
if (strcasecmp(value, "1") == 0 ||
strcasecmp(value, "true") == 0 ||
strcasecmp(value, "yes") == 0)
boolvalue = true;
else if (strcasecmp(value, "0") == 0 ||
strcasecmp(value, "false") == 0 ||
strcasecmp(value, "no") == 0)
boolvalue = false;
else
errx(EXIT_FAILURE, "Invalid boolean value `%s'", value);
prop_dictionary_set(props, name, prop_bool_create(boolvalue));
}
static void
parse_int_param(prop_dictionary_t props, const char *name,
const char *value)
{
int64_t intvalue;
assert(name != NULL);
assert(value != NULL);
if (dehumanize_number(value, &intvalue) != 0)
err(EXIT_FAILURE, "Invalid integer value `%s'", value);
prop_dictionary_set(props, name,
prop_number_create_integer(intvalue));
}
static void
parse_param(prop_dictionary_t props, const char *origstr,
void (*fmt_handler)(prop_dictionary_t, const char *, const char *))
{
char *name, *value;
name = strdup(origstr);
value = strchr(name, '=');
if (value == NULL) {
free(name);
errx(EXIT_FAILURE, "Invalid parameter `%s'", origstr);
}
*value++ = '\0';
fmt_handler(props, name, value);
free(name);
}
static void
parse_string_param(prop_dictionary_t props, const char *name,
const char *value)
{
assert(name != NULL);
assert(value != NULL);
prop_dictionary_set(props, name, prop_string_create_cstring(value));
}
static void
usage(void)
{
(void)fprintf(stderr,
"Usage: %s [-fP] [-b var=boolean] [-i var=integer] "
"[-s var=string] module\n"
" %s -p [-b var=boolean] [-d var] [-i var=integer] "
"[-m plist]\n [-s var=string]\n",
getprogname(), getprogname());
exit(EXIT_FAILURE);
}
static void
merge_dicts(prop_dictionary_t existing_dict, const prop_dictionary_t new_dict)
{
prop_dictionary_keysym_t props_keysym;
prop_object_iterator_t props_iter;
prop_object_t props_obj;
const char *props_key;
props_iter = prop_dictionary_iterator(new_dict);
if (props_iter == NULL) {
errx(EXIT_FAILURE, "Failed to iterate new property list");
}
while ((props_obj = prop_object_iterator_next(props_iter)) != NULL) {
props_keysym = (prop_dictionary_keysym_t)props_obj;
props_key = prop_dictionary_keysym_cstring_nocopy(props_keysym);
props_obj = prop_dictionary_get_keysym(new_dict, props_keysym);
if ((props_obj == NULL) || !prop_dictionary_set(existing_dict,
props_key, props_obj)) {
errx(EXIT_FAILURE, "Failed to copy "
"existing property list");
}
}
prop_object_iterator_release(props_iter);
return;
}