move all tools to subdirs
This commit is contained in:
Kay Sievers
@@ -0,0 +1,272 @@
|
||||
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
||||
|
||||
/***
|
||||
This file is part of systemd.
|
||||
|
||||
Copyright 2010 Lennart Poettering
|
||||
|
||||
systemd is free software; you can redistribute it and/or modify it
|
||||
under the terms of the GNU Lesser General Public License as published by
|
||||
the Free Software Foundation; either version 2.1 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
systemd is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public License
|
||||
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
||||
***/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdbool.h>
|
||||
#include <errno.h>
|
||||
#include <string.h>
|
||||
#include <stdio.h>
|
||||
#include <limits.h>
|
||||
#include <getopt.h>
|
||||
|
||||
#include "log.h"
|
||||
#include "strv.h"
|
||||
#include "util.h"
|
||||
#include "strv.h"
|
||||
|
||||
#define PROC_SYS_PREFIX "/proc/sys/"
|
||||
|
||||
static char **arg_prefixes = NULL;
|
||||
|
||||
static int apply_sysctl(const char *property, const char *value) {
|
||||
char *p, *n;
|
||||
int r = 0, k;
|
||||
|
||||
log_debug("Setting '%s' to '%s'", property, value);
|
||||
|
||||
p = new(char, sizeof(PROC_SYS_PREFIX) + strlen(property));
|
||||
if (!p) {
|
||||
log_error("Out of memory");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
n = stpcpy(p, PROC_SYS_PREFIX);
|
||||
strcpy(n, property);
|
||||
|
||||
for (; *n; n++)
|
||||
if (*n == '.')
|
||||
*n = '/';
|
||||
|
||||
if (!strv_isempty(arg_prefixes)) {
|
||||
char **i;
|
||||
bool good = false;
|
||||
|
||||
STRV_FOREACH(i, arg_prefixes)
|
||||
if (path_startswith(p, *i)) {
|
||||
good = true;
|
||||
break;
|
||||
}
|
||||
|
||||
if (!good) {
|
||||
log_debug("Skipping %s", p);
|
||||
free(p);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
k = write_one_line_file(p, value);
|
||||
if (k < 0) {
|
||||
|
||||
log_full(k == -ENOENT ? LOG_DEBUG : LOG_WARNING,
|
||||
"Failed to write '%s' to '%s': %s", value, p, strerror(-k));
|
||||
|
||||
if (k != -ENOENT && r == 0)
|
||||
r = k;
|
||||
}
|
||||
|
||||
free(p);
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
static int apply_file(const char *path, bool ignore_enoent) {
|
||||
FILE *f;
|
||||
int r = 0;
|
||||
|
||||
assert(path);
|
||||
|
||||
if (!(f = fopen(path, "re"))) {
|
||||
if (ignore_enoent && errno == ENOENT)
|
||||
return 0;
|
||||
|
||||
log_error("Failed to open file '%s', ignoring: %m", path);
|
||||
return -errno;
|
||||
}
|
||||
|
||||
log_debug("apply: %s\n", path);
|
||||
while (!feof(f)) {
|
||||
char l[LINE_MAX], *p, *value;
|
||||
int k;
|
||||
|
||||
if (!fgets(l, sizeof(l), f)) {
|
||||
if (feof(f))
|
||||
break;
|
||||
|
||||
log_error("Failed to read file '%s', ignoring: %m", path);
|
||||
r = -errno;
|
||||
goto finish;
|
||||
}
|
||||
|
||||
p = strstrip(l);
|
||||
|
||||
if (!*p)
|
||||
continue;
|
||||
|
||||
if (strchr(COMMENTS, *p))
|
||||
continue;
|
||||
|
||||
if (!(value = strchr(p, '='))) {
|
||||
log_error("Line is not an assignment in file '%s': %s", path, value);
|
||||
|
||||
if (r == 0)
|
||||
r = -EINVAL;
|
||||
continue;
|
||||
}
|
||||
|
||||
*value = 0;
|
||||
value++;
|
||||
|
||||
if ((k = apply_sysctl(strstrip(p), strstrip(value))) < 0 && r == 0)
|
||||
r = k;
|
||||
}
|
||||
|
||||
finish:
|
||||
fclose(f);
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
static int help(void) {
|
||||
|
||||
printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n"
|
||||
"Applies kernel sysctl settings.\n\n"
|
||||
" -h --help Show this help\n"
|
||||
" --prefix=PATH Only apply rules that apply to paths with the specified prefix\n",
|
||||
program_invocation_short_name);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int parse_argv(int argc, char *argv[]) {
|
||||
|
||||
enum {
|
||||
ARG_PREFIX
|
||||
};
|
||||
|
||||
static const struct option options[] = {
|
||||
{ "help", no_argument, NULL, 'h' },
|
||||
{ "prefix", required_argument, NULL, ARG_PREFIX },
|
||||
{ NULL, 0, NULL, 0 }
|
||||
};
|
||||
|
||||
int c;
|
||||
|
||||
assert(argc >= 0);
|
||||
assert(argv);
|
||||
|
||||
while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) {
|
||||
|
||||
switch (c) {
|
||||
|
||||
case 'h':
|
||||
help();
|
||||
return 0;
|
||||
|
||||
case ARG_PREFIX: {
|
||||
char *p;
|
||||
char **l;
|
||||
|
||||
for (p = optarg; *p; p++)
|
||||
if (*p == '.')
|
||||
*p = '/';
|
||||
|
||||
l = strv_append(arg_prefixes, optarg);
|
||||
if (!l) {
|
||||
log_error("Out of memory");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
strv_free(arg_prefixes);
|
||||
arg_prefixes = l;
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
case '?':
|
||||
return -EINVAL;
|
||||
|
||||
default:
|
||||
log_error("Unknown option code %c", c);
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[]) {
|
||||
int r = 0;
|
||||
|
||||
r = parse_argv(argc, argv);
|
||||
if (r <= 0)
|
||||
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
|
||||
|
||||
log_set_target(LOG_TARGET_AUTO);
|
||||
log_parse_environment();
|
||||
log_open();
|
||||
|
||||
umask(0022);
|
||||
|
||||
if (argc > optind) {
|
||||
int i;
|
||||
|
||||
for (i = optind; i < argc; i++) {
|
||||
int k;
|
||||
|
||||
k = apply_file(argv[i], false);
|
||||
if (k < 0 && r == 0)
|
||||
r = k;
|
||||
}
|
||||
} else {
|
||||
char **files, **f;
|
||||
int k;
|
||||
|
||||
r = conf_files_list(&files, ".conf",
|
||||
"/etc/sysctl.d",
|
||||
"/run/sysctl.d",
|
||||
"/usr/local/lib/sysctl.d",
|
||||
"/usr/lib/sysctl.d",
|
||||
#ifdef HAVE_SPLIT_USR
|
||||
"/lib/sysctl.d",
|
||||
#endif
|
||||
NULL);
|
||||
if (r < 0) {
|
||||
log_error("Failed to enumerate sysctl.d files: %s", strerror(-r));
|
||||
goto finish;
|
||||
}
|
||||
|
||||
STRV_FOREACH(f, files) {
|
||||
k = apply_file(*f, true);
|
||||
if (k < 0 && r == 0)
|
||||
r = k;
|
||||
}
|
||||
|
||||
k = apply_file("/etc/sysctl.conf", true);
|
||||
if (k < 0 && r == 0)
|
||||
r = k;
|
||||
|
||||
strv_free(files);
|
||||
}
|
||||
finish:
|
||||
strv_free(arg_prefixes);
|
||||
|
||||
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
|
||||
}
|
||||
Reference in New Issue
Block a user