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sysctl: support multiple prefixes in a single invocation

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This commit is contained in:
Lennart Poettering 2011-07-15 02:01:31 +02:00
parent 55af389785
commit f68c5a7076
1 changed files with 28 additions and 6 deletions
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34
src/sysctl.c
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@ -30,10 +30,11 @@
#include "log.h"
#include "strv.h"
#include "util.h"
#include "strv.h"
#define PROC_SYS_PREFIX "/proc/sys/"
static const char *arg_prefix = NULL;
static char **arg_prefixes = NULL;
static int apply_sysctl(const char *property, const char *value) {
char *p, *n;
@ -54,10 +55,21 @@ static int apply_sysctl(const char *property, const char *value) {
if (*n == '.')
*n = '/';
if (arg_prefix && !path_startswith(p, arg_prefix)) {
log_debug("Skipping %s", p);
free(p);
return 0;
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);
@ -170,12 +182,20 @@ static int parse_argv(int argc, char *argv[]) {
case ARG_PREFIX: {
char *p;
char **l;
for (p = optarg; *p; p++)
if (*p == '.')
*p = '/';
arg_prefix = optarg;
l = strv_append(arg_prefixes, optarg);
if (!l) {
log_error("Out of memory");
return -ENOMEM;
}
strv_free(arg_prefixes);
arg_prefixes = l;
break;
}
@ -238,5 +258,7 @@ int main(int argc, char *argv[]) {
strv_free(files);
}
finish:
strv_free(arg_prefixes);
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}