We need to ensure that the init script started is correct, translating symlinks. This has a new rule - multiplexed services must exist in the same dir as the master sript. So we need to ensuret that net.lo(0) is the real script and not a symlink itself. This fixes Gentoo #219526.

This commit is contained in:
Roy Marples
2008-04-29 10:25:45 +00:00
parent 5a59542629
commit 5ba6f0a628
13 changed files with 80 additions and 30 deletions

View File

@ -39,6 +39,7 @@
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <libgen.h>
#include <limits.h>
#include <signal.h>
#include <stdio.h>
@ -707,7 +708,8 @@ static void svc_start(bool deps)
hook_out = RC_HOOK_SERVICE_START_OUT;
rc_plugin_run(RC_HOOK_SERVICE_START_IN, applet);
if (rc_conf_yesno("rc_depend_strict"))
errno = 0;
if (rc_conf_yesno("rc_depend_strict") || errno == ENOENT)
depoptions |= RC_DEP_STRICT;
if (deps) {
@ -933,8 +935,8 @@ static void svc_stop(bool deps)
ewarn ("WARNING: you are stopping a boot service");
if (deps && ! (state & RC_SERVICE_WASINACTIVE)) {
if (rc_conf_yesno("rc_depend_strict"))
errno = 0;
if (rc_conf_yesno("rc_depend_strict") || errno == ENOENT)
depoptions |= RC_DEP_STRICT;
if (! deptree && ((deptree = _rc_deptree_load(NULL)) == NULL))
@ -1102,39 +1104,73 @@ int runscript(int argc, char **argv)
int retval;
int opt;
RC_STRING *svc;
char dir[PATH_MAX];
char path[PATH_MAX];
char lnk[PATH_MAX];
size_t l = 0;
size_t ll;
char *save;
char *dir, *save;
const char *file;
int depoptions = RC_DEP_TRACE;
struct stat stbuf;
/* Show help if insufficient args */
if (argc < 2 || ! exists(argv[1])) {
fprintf(stderr, "runscript is not meant to be to run directly\n");
fprintf(stderr, "runscript should not be run directly\n");
exit(EXIT_FAILURE);
}
applet = basename_c(argv[1]);
if (argc < 3)
usage(EXIT_FAILURE);
if (*argv[1] == '/')
service = xstrdup(argv[1]);
else {
getcwd(dir, sizeof(dir));
l = strlen(dir) + strlen(argv[1]) + 2;
service = xmalloc(sizeof (char) * l);
snprintf(service, l, "%s/%s", dir, argv[1]);
if (stat(argv[1], &stbuf) != 0) {
fprintf(stderr, "runscript `%s': %s\n",
argv[1], strerror(errno));
exit(EXIT_FAILURE);
}
atexit(cleanup);
/* We need to work out the real full path to our service.
* This works fine, provided that we ONLY allow mulitplexed services
* to exist in the same directory as the master link.
* Also, the master link as to be a real file in the init dir. */
if (!realpath(argv[1], path)) {
fprintf(stderr, "realpath: %s\n", strerror(errno));
exit(EXIT_FAILURE);
}
memset(lnk, 0, sizeof(lnk));
if (readlink(argv[1], lnk, sizeof(lnk)-1)) {
dir = dirname(path);
if (strchr(lnk, '/')) {
save = xstrdup(dir);
dir = dirname(lnk);
if (strcmp(dir, save) == 0)
file = basename_c(argv[1]);
else
file = basename_c(lnk);
free(save);
dir = dirname(path);
} else
file = basename_c(argv[1]);
ll = strlen(dir) + strlen(file) + 2;
service = xmalloc(ll);
snprintf(service, ll, "%s/%s", dir, file);
if (stat(service, &stbuf) != 0) {
free(service);
service = xstrdup(lnk);
}
}
if (!service)
service = xstrdup(path);
applet = basename_c(service);
if (argc < 3)
usage(EXIT_FAILURE);
/* Change dir to / to ensure all init scripts don't use stuff in pwd */
chdir("/");
#ifdef __linux__
/* coldplug events can trigger init scripts, but we don't want to run them
until after rc sysinit has completed so we punt them to the boot runlevel */
/* coldplug events can trigger init scripts, but we don't want to run
* them until after rc sysinit has completed so we punt them to the
* boot runlevel */
if (exists("/dev/.rcsysinit")) {
eerror("%s: cannot run until sysvinit completes", applet);
if (mkdir("/dev/.rcboot", 0755) != 0 && errno != EEXIST)
@ -1264,7 +1300,8 @@ int runscript(int argc, char **argv)
strcmp(optarg, "ibefore") == 0 ||
strcmp(optarg, "iprovide") == 0)
{
if (rc_conf_yesno("rc_depend_strict"))
errno = 0;
if (rc_conf_yesno("rc_depend_strict") || errno == ENOENT)
depoptions |= RC_DEP_STRICT;
if (! deptree && ((deptree = _rc_deptree_load(NULL)) == NULL))