| 1 |
/*
|
| 2 |
librc
|
| 3 |
core RC functions
|
| 4 |
Copyright 2007 Gentoo Foundation
|
| 5 |
Released under the GPLv2
|
| 6 |
*/
|
| 7 |
|
| 8 |
#include "librc.h"
|
| 9 |
|
| 10 |
/* usecs to wait while we poll the fifo */
|
| 11 |
#define WAIT_INTERVAL 20000
|
| 12 |
|
| 13 |
/* max secs to wait until a service comes up */
|
| 14 |
#define WAIT_MAX 60
|
| 15 |
|
| 16 |
#define SOFTLEVEL RC_SVCDIR "softlevel"
|
| 17 |
|
| 18 |
/* File stream used for plugins to write environ vars to */
|
| 19 |
FILE *rc_environ_fd = NULL;
|
| 20 |
|
| 21 |
static const char *rc_service_state_names[] = {
|
| 22 |
"started",
|
| 23 |
"stopped",
|
| 24 |
"starting",
|
| 25 |
"stopping",
|
| 26 |
"inactive",
|
| 27 |
"wasinactive",
|
| 28 |
"coldplugged",
|
| 29 |
"failed",
|
| 30 |
"scheduled",
|
| 31 |
NULL
|
| 32 |
};
|
| 33 |
|
| 34 |
bool rc_runlevel_starting (void)
|
| 35 |
{
|
| 36 |
return (rc_is_dir (RC_SVCDIR "softscripts.old"));
|
| 37 |
}
|
| 38 |
librc_hidden_def(rc_runlevel_starting)
|
| 39 |
|
| 40 |
bool rc_runlevel_stopping (void)
|
| 41 |
{
|
| 42 |
return (rc_is_dir (RC_SVCDIR "softscripts.new"));
|
| 43 |
}
|
| 44 |
librc_hidden_def(rc_runlevel_stopping)
|
| 45 |
|
| 46 |
char **rc_get_runlevels (void)
|
| 47 |
{
|
| 48 |
char **dirs = rc_ls_dir (NULL, RC_RUNLEVELDIR, 0);
|
| 49 |
char **runlevels = NULL;
|
| 50 |
int i;
|
| 51 |
char *dir;
|
| 52 |
|
| 53 |
STRLIST_FOREACH (dirs, dir, i) {
|
| 54 |
char *path = rc_strcatpaths (RC_RUNLEVELDIR, dir, (char *) NULL);
|
| 55 |
if (rc_is_dir (path))
|
| 56 |
runlevels = rc_strlist_addsort (runlevels, dir);
|
| 57 |
free (path);
|
| 58 |
}
|
| 59 |
rc_strlist_free (dirs);
|
| 60 |
|
| 61 |
return (runlevels);
|
| 62 |
}
|
| 63 |
librc_hidden_def(rc_get_runlevels)
|
| 64 |
|
| 65 |
char *rc_get_runlevel (void)
|
| 66 |
{
|
| 67 |
FILE *fp;
|
| 68 |
static char buffer [PATH_MAX];
|
| 69 |
|
| 70 |
if (! (fp = fopen (SOFTLEVEL, "r"))) {
|
| 71 |
snprintf (buffer, sizeof (buffer), "sysinit");
|
| 72 |
return (buffer);
|
| 73 |
}
|
| 74 |
|
| 75 |
if (fgets (buffer, PATH_MAX, fp)) {
|
| 76 |
int i = strlen (buffer) - 1;
|
| 77 |
if (buffer[i] == '\n')
|
| 78 |
buffer[i] = 0;
|
| 79 |
fclose (fp);
|
| 80 |
return (buffer);
|
| 81 |
}
|
| 82 |
|
| 83 |
fclose (fp);
|
| 84 |
snprintf (buffer, sizeof (buffer), "sysinit");
|
| 85 |
return (buffer);
|
| 86 |
}
|
| 87 |
librc_hidden_def(rc_get_runlevel)
|
| 88 |
|
| 89 |
void rc_set_runlevel (const char *runlevel)
|
| 90 |
{
|
| 91 |
FILE *fp = fopen (SOFTLEVEL, "w");
|
| 92 |
if (! fp)
|
| 93 |
eerrorx ("failed to open `" SOFTLEVEL "': %s", strerror (errno));
|
| 94 |
fprintf (fp, "%s", runlevel);
|
| 95 |
fclose (fp);
|
| 96 |
}
|
| 97 |
librc_hidden_def(rc_set_runlevel)
|
| 98 |
|
| 99 |
bool rc_runlevel_exists (const char *runlevel)
|
| 100 |
{
|
| 101 |
char *path;
|
| 102 |
bool retval;
|
| 103 |
|
| 104 |
if (! runlevel)
|
| 105 |
return (false);
|
| 106 |
|
| 107 |
path = rc_strcatpaths (RC_RUNLEVELDIR, runlevel, (char *) NULL);
|
| 108 |
retval = rc_is_dir (path);
|
| 109 |
free (path);
|
| 110 |
return (retval);
|
| 111 |
}
|
| 112 |
librc_hidden_def(rc_runlevel_exists)
|
| 113 |
|
| 114 |
/* Resolve a service name to it's full path */
|
| 115 |
char *rc_resolve_service (const char *service)
|
| 116 |
{
|
| 117 |
char buffer[PATH_MAX];
|
| 118 |
char *file;
|
| 119 |
int r = 0;
|
| 120 |
|
| 121 |
if (! service)
|
| 122 |
return (NULL);
|
| 123 |
|
| 124 |
if (service[0] == '/')
|
| 125 |
return (strdup (service));
|
| 126 |
|
| 127 |
file = rc_strcatpaths (RC_SVCDIR, "started", service, (char *) NULL);
|
| 128 |
if (! rc_is_link (file)) {
|
| 129 |
free (file);
|
| 130 |
file = rc_strcatpaths (RC_SVCDIR, "inactive", service, (char *) NULL);
|
| 131 |
if (! rc_is_link (file)) {
|
| 132 |
free (file);
|
| 133 |
file = NULL;
|
| 134 |
}
|
| 135 |
}
|
| 136 |
|
| 137 |
memset (buffer, 0, sizeof (buffer));
|
| 138 |
if (file) {
|
| 139 |
r = readlink (file, buffer, sizeof (buffer));
|
| 140 |
free (file);
|
| 141 |
if (r > 0)
|
| 142 |
return (rc_xstrdup (buffer));
|
| 143 |
}
|
| 144 |
|
| 145 |
snprintf (buffer, sizeof (buffer), RC_INITDIR "%s", service);
|
| 146 |
return (strdup (buffer));
|
| 147 |
}
|
| 148 |
librc_hidden_def(rc_resolve_service)
|
| 149 |
|
| 150 |
bool rc_service_exists (const char *service)
|
| 151 |
{
|
| 152 |
char *file;
|
| 153 |
bool retval = false;
|
| 154 |
int len;
|
| 155 |
|
| 156 |
if (! service)
|
| 157 |
return (false);
|
| 158 |
|
| 159 |
len = strlen (service);
|
| 160 |
|
| 161 |
/* .sh files are not init scripts */
|
| 162 |
if (len > 2 && service[len - 3] == '.' &&
|
| 163 |
service[len - 2] == 's' &&
|
| 164 |
service[len - 1] == 'h')
|
| 165 |
return (false);
|
| 166 |
|
| 167 |
file = rc_resolve_service (service);
|
| 168 |
if (rc_exists (file))
|
| 169 |
retval = rc_is_exec (file);
|
| 170 |
free (file);
|
| 171 |
return (retval);
|
| 172 |
}
|
| 173 |
librc_hidden_def(rc_service_exists)
|
| 174 |
|
| 175 |
bool rc_service_in_runlevel (const char *service, const char *runlevel)
|
| 176 |
{
|
| 177 |
char *file;
|
| 178 |
bool retval;
|
| 179 |
char *svc;
|
| 180 |
|
| 181 |
if (! runlevel || ! service)
|
| 182 |
return (false);
|
| 183 |
|
| 184 |
if (! rc_service_exists (service))
|
| 185 |
return (false);
|
| 186 |
|
| 187 |
svc = rc_xstrdup (service);
|
| 188 |
file = rc_strcatpaths (RC_RUNLEVELDIR, runlevel, basename (svc),
|
| 189 |
(char *) NULL);
|
| 190 |
free (svc);
|
| 191 |
retval = rc_exists (file);
|
| 192 |
free (file);
|
| 193 |
|
| 194 |
return (retval);
|
| 195 |
}
|
| 196 |
librc_hidden_def(rc_service_in_runlevel)
|
| 197 |
|
| 198 |
bool rc_mark_service (const char *service, const rc_service_state_t state)
|
| 199 |
{
|
| 200 |
char *file;
|
| 201 |
int i = 0;
|
| 202 |
int skip_state = -1;
|
| 203 |
char *base;
|
| 204 |
char *svc;
|
| 205 |
char *init = rc_resolve_service (service);
|
| 206 |
bool skip_wasinactive = false;
|
| 207 |
|
| 208 |
if (! service)
|
| 209 |
return (false);
|
| 210 |
|
| 211 |
svc = rc_xstrdup (service);
|
| 212 |
base = basename (svc);
|
| 213 |
|
| 214 |
if (state != rc_service_stopped) {
|
| 215 |
if (! rc_is_file(init)) {
|
| 216 |
free (init);
|
| 217 |
free (svc);
|
| 218 |
return (false);
|
| 219 |
}
|
| 220 |
|
| 221 |
file = rc_strcatpaths (RC_SVCDIR, rc_service_state_names[state], base,
|
| 222 |
(char *) NULL);
|
| 223 |
if (rc_exists (file))
|
| 224 |
unlink (file);
|
| 225 |
i = symlink (init, file);
|
| 226 |
if (i != 0) {
|
| 227 |
free (file);
|
| 228 |
free (init);
|
| 229 |
free (svc);
|
| 230 |
einfo ("%d %s %s", state, rc_service_state_names[state], base);
|
| 231 |
eerror ("symlink `%s' to `%s': %s", init, file, strerror (errno));
|
| 232 |
return (false);
|
| 233 |
}
|
| 234 |
|
| 235 |
free (file);
|
| 236 |
skip_state = state;
|
| 237 |
}
|
| 238 |
|
| 239 |
if (state == rc_service_coldplugged) {
|
| 240 |
free (init);
|
| 241 |
free (svc);
|
| 242 |
return (true);
|
| 243 |
}
|
| 244 |
|
| 245 |
/* Remove any old states now */
|
| 246 |
i = 0;
|
| 247 |
while (rc_service_state_names[i]) {
|
| 248 |
if ((i != skip_state &&
|
| 249 |
i != rc_service_stopped &&
|
| 250 |
i != rc_service_coldplugged &&
|
| 251 |
i != rc_service_scheduled &&
|
| 252 |
i != rc_service_crashed) &&
|
| 253 |
(! skip_wasinactive || i != rc_service_wasinactive))
|
| 254 |
{
|
| 255 |
file = rc_strcatpaths (RC_SVCDIR, rc_service_state_names[i], base,
|
| 256 |
(char *) NULL);
|
| 257 |
if (rc_exists (file)) {
|
| 258 |
if ((state == rc_service_starting ||
|
| 259 |
state == rc_service_stopping) &&
|
| 260 |
i == rc_service_inactive)
|
| 261 |
{
|
| 262 |
char *wasfile = rc_strcatpaths (RC_SVCDIR,
|
| 263 |
rc_service_state_names[rc_service_wasinactive],
|
| 264 |
base, (char *) NULL);
|
| 265 |
|
| 266 |
if (symlink (init, wasfile) != 0)
|
| 267 |
eerror ("symlink `%s' to `%s': %s", init, wasfile,
|
| 268 |
strerror (errno));
|
| 269 |
|
| 270 |
skip_wasinactive = true;
|
| 271 |
free (wasfile);
|
| 272 |
}
|
| 273 |
|
| 274 |
errno = 0;
|
| 275 |
if (unlink (file) != 0 && errno != ENOENT)
|
| 276 |
eerror ("failed to delete `%s': %s", file,
|
| 277 |
strerror (errno));
|
| 278 |
}
|
| 279 |
free (file);
|
| 280 |
}
|
| 281 |
i++;
|
| 282 |
}
|
| 283 |
|
| 284 |
/* Remove the exclusive state if we're inactive */
|
| 285 |
if (state == rc_service_started ||
|
| 286 |
state == rc_service_stopped ||
|
| 287 |
state == rc_service_inactive)
|
| 288 |
{
|
| 289 |
file = rc_strcatpaths (RC_SVCDIR, "exclusive", base, (char *) NULL);
|
| 290 |
if (rc_exists (file))
|
| 291 |
if (unlink (file) != 0)
|
| 292 |
eerror ("unlink `%s': %s", file, strerror (errno));
|
| 293 |
free (file);
|
| 294 |
}
|
| 295 |
|
| 296 |
/* Remove any options and daemons the service may have stored */
|
| 297 |
if (state == rc_service_stopped) {
|
| 298 |
char *dir = rc_strcatpaths (RC_SVCDIR, "options", base, (char *) NULL);
|
| 299 |
|
| 300 |
if (rc_is_dir (dir))
|
| 301 |
rc_rm_dir (dir, true);
|
| 302 |
free (dir);
|
| 303 |
|
| 304 |
dir = rc_strcatpaths (RC_SVCDIR, "daemons", base, (char *) NULL);
|
| 305 |
if (rc_is_dir (dir))
|
| 306 |
rc_rm_dir (dir, true);
|
| 307 |
free (dir);
|
| 308 |
|
| 309 |
rc_schedule_clear (service);
|
| 310 |
}
|
| 311 |
|
| 312 |
/* These are final states, so remove us from scheduled */
|
| 313 |
if (state == rc_service_started || state == rc_service_stopped) {
|
| 314 |
char *sdir = rc_strcatpaths (RC_SVCDIR, "scheduled", (char *) NULL);
|
| 315 |
char **dirs = rc_ls_dir (NULL, sdir, 0);
|
| 316 |
char *dir;
|
| 317 |
int serrno;
|
| 318 |
|
| 319 |
STRLIST_FOREACH (dirs, dir, i) {
|
| 320 |
char *bdir = rc_strcatpaths (sdir, dir, (char *) NULL);
|
| 321 |
file = rc_strcatpaths (bdir, base, (char *) NULL);
|
| 322 |
if (rc_exists (file))
|
| 323 |
if (unlink (file) != 0)
|
| 324 |
eerror ("unlink `%s': %s", file, strerror (errno));
|
| 325 |
free (file);
|
| 326 |
|
| 327 |
/* Try and remove the dir - we don't care about errors */
|
| 328 |
serrno = errno;
|
| 329 |
rmdir (bdir);
|
| 330 |
errno = serrno;
|
| 331 |
free (bdir);
|
| 332 |
}
|
| 333 |
rc_strlist_free (dirs);
|
| 334 |
free (sdir);
|
| 335 |
}
|
| 336 |
|
| 337 |
free (svc);
|
| 338 |
free (init);
|
| 339 |
return (true);
|
| 340 |
}
|
| 341 |
librc_hidden_def(rc_mark_service)
|
| 342 |
|
| 343 |
bool rc_service_state (const char *service, const rc_service_state_t state)
|
| 344 |
{
|
| 345 |
char *file;
|
| 346 |
bool retval;
|
| 347 |
char *svc;
|
| 348 |
|
| 349 |
/* If the init script does not exist then we are stopped */
|
| 350 |
if (! rc_service_exists (service))
|
| 351 |
return (state == rc_service_stopped ? true : false);
|
| 352 |
|
| 353 |
/* We check stopped state by not being in any of the others */
|
| 354 |
if (state == rc_service_stopped)
|
| 355 |
return ( ! (rc_service_state (service, rc_service_started) ||
|
| 356 |
rc_service_state (service, rc_service_starting) ||
|
| 357 |
rc_service_state (service, rc_service_stopping) ||
|
| 358 |
rc_service_state (service, rc_service_inactive)));
|
| 359 |
|
| 360 |
/* The crashed state and scheduled states are virtual */
|
| 361 |
if (state == rc_service_crashed)
|
| 362 |
return (rc_service_daemons_crashed (service));
|
| 363 |
else if (state == rc_service_scheduled) {
|
| 364 |
char **services = rc_services_scheduled_by (service);
|
| 365 |
retval = (services);
|
| 366 |
if (services)
|
| 367 |
free (services);
|
| 368 |
return (retval);
|
| 369 |
}
|
| 370 |
|
| 371 |
/* Now we just check if a file by the service name rc_exists
|
| 372 |
in the state dir */
|
| 373 |
svc = rc_xstrdup (service);
|
| 374 |
file = rc_strcatpaths (RC_SVCDIR, rc_service_state_names[state],
|
| 375 |
basename (svc), (char*) NULL);
|
| 376 |
free (svc);
|
| 377 |
retval = rc_exists (file);
|
| 378 |
free (file);
|
| 379 |
return (retval);
|
| 380 |
}
|
| 381 |
librc_hidden_def(rc_service_state)
|
| 382 |
|
| 383 |
bool rc_get_service_option (const char *service, const char *option,
|
| 384 |
char *value)
|
| 385 |
{
|
| 386 |
FILE *fp;
|
| 387 |
char buffer[RC_LINEBUFFER];
|
| 388 |
char *file = rc_strcatpaths (RC_SVCDIR, "options", service, option,
|
| 389 |
(char *) NULL);
|
| 390 |
bool retval = false;
|
| 391 |
|
| 392 |
if (rc_exists (file)) {
|
| 393 |
if ((fp = fopen (file, "r")) == NULL)
|
| 394 |
eerror ("fopen `%s': %s", file, strerror (errno));
|
| 395 |
else {
|
| 396 |
memset (buffer, 0, sizeof (buffer));
|
| 397 |
while (fgets (buffer, RC_LINEBUFFER, fp)) {
|
| 398 |
memcpy (value, buffer, strlen (buffer));
|
| 399 |
value += strlen (buffer);
|
| 400 |
}
|
| 401 |
fclose (fp);
|
| 402 |
retval = true;
|
| 403 |
}
|
| 404 |
}
|
| 405 |
|
| 406 |
free (file);
|
| 407 |
return (retval);
|
| 408 |
}
|
| 409 |
librc_hidden_def(rc_get_service_option)
|
| 410 |
|
| 411 |
bool rc_set_service_option (const char *service, const char *option,
|
| 412 |
const char *value)
|
| 413 |
{
|
| 414 |
FILE *fp;
|
| 415 |
char *path = rc_strcatpaths (RC_SVCDIR, "options", service, (char *) NULL);
|
| 416 |
char *file = rc_strcatpaths (path, option, (char *) NULL);
|
| 417 |
bool retval = false;
|
| 418 |
|
| 419 |
if (! rc_is_dir (path)) {
|
| 420 |
if (mkdir (path, 0755) != 0) {
|
| 421 |
eerror ("mkdir `%s': %s", path, strerror (errno));
|
| 422 |
free (path);
|
| 423 |
free (file);
|
| 424 |
return (false);
|
| 425 |
}
|
| 426 |
}
|
| 427 |
|
| 428 |
if ((fp = fopen (file, "w")) == NULL)
|
| 429 |
eerror ("fopen `%s': %s", file, strerror (errno));
|
| 430 |
else {
|
| 431 |
if (value)
|
| 432 |
fprintf (fp, "%s", value);
|
| 433 |
fclose (fp);
|
| 434 |
retval = true;
|
| 435 |
}
|
| 436 |
|
| 437 |
free (path);
|
| 438 |
free (file);
|
| 439 |
return (retval);
|
| 440 |
}
|
| 441 |
librc_hidden_def(rc_set_service_option)
|
| 442 |
|
| 443 |
static pid_t _exec_service (const char *service, const char *arg)
|
| 444 |
{
|
| 445 |
char *file;
|
| 446 |
char *fifo;
|
| 447 |
pid_t pid = -1;
|
| 448 |
char *svc;
|
| 449 |
|
| 450 |
file = rc_resolve_service (service);
|
| 451 |
if (! rc_is_file (file)) {
|
| 452 |
rc_mark_service (service, rc_service_stopped);
|
| 453 |
free (file);
|
| 454 |
return (0);
|
| 455 |
}
|
| 456 |
|
| 457 |
/* We create a fifo so that other services can wait until we complete */
|
| 458 |
svc = rc_xstrdup (service);
|
| 459 |
fifo = rc_strcatpaths (RC_SVCDIR, "exclusive", basename (svc),
|
| 460 |
(char *) NULL);
|
| 461 |
free (svc);
|
| 462 |
|
| 463 |
if (mkfifo (fifo, 0600) != 0 && errno != EEXIST) {
|
| 464 |
eerror ("unable to create fifo `%s': %s", fifo, strerror (errno));
|
| 465 |
free (fifo);
|
| 466 |
free (file);
|
| 467 |
return (-1);
|
| 468 |
}
|
| 469 |
|
| 470 |
if ((pid = vfork ()) == 0) {
|
| 471 |
execl (file, file, arg, (char *) NULL);
|
| 472 |
eerror ("unable to exec `%s': %s", file, strerror (errno));
|
| 473 |
unlink (fifo);
|
| 474 |
_exit (EXIT_FAILURE);
|
| 475 |
}
|
| 476 |
|
| 477 |
free (fifo);
|
| 478 |
free (file);
|
| 479 |
|
| 480 |
if (pid == -1)
|
| 481 |
eerror ("vfork: %s", strerror (errno));
|
| 482 |
|
| 483 |
return (pid);
|
| 484 |
}
|
| 485 |
|
| 486 |
int rc_waitpid (pid_t pid) {
|
| 487 |
int status = 0;
|
| 488 |
pid_t savedpid = pid;
|
| 489 |
|
| 490 |
errno = 0;
|
| 491 |
do {
|
| 492 |
pid = waitpid (savedpid, &status, 0);
|
| 493 |
if (pid < 0) {
|
| 494 |
if (errno != ECHILD)
|
| 495 |
eerror ("waitpid %d: %s", savedpid, strerror (errno));
|
| 496 |
return (-1);
|
| 497 |
}
|
| 498 |
} while (! WIFEXITED (status) && ! WIFSIGNALED (status));
|
| 499 |
|
| 500 |
return (WIFEXITED (status) ? WEXITSTATUS (status) : EXIT_FAILURE);
|
| 501 |
}
|
| 502 |
|
| 503 |
pid_t rc_stop_service (const char *service)
|
| 504 |
{
|
| 505 |
if (rc_service_state (service, rc_service_stopped))
|
| 506 |
return (0);
|
| 507 |
|
| 508 |
return (_exec_service (service, "stop"));
|
| 509 |
}
|
| 510 |
librc_hidden_def(rc_stop_service)
|
| 511 |
|
| 512 |
pid_t rc_start_service (const char *service)
|
| 513 |
{
|
| 514 |
if (! rc_service_state (service, rc_service_stopped))
|
| 515 |
return (0);
|
| 516 |
|
| 517 |
return (_exec_service (service, "start"));
|
| 518 |
}
|
| 519 |
librc_hidden_def(rc_start_service)
|
| 520 |
|
| 521 |
void rc_schedule_start_service (const char *service,
|
| 522 |
const char *service_to_start)
|
| 523 |
{
|
| 524 |
char *dir;
|
| 525 |
char *init;
|
| 526 |
char *file;
|
| 527 |
char *svc;
|
| 528 |
|
| 529 |
/* service may be a provided service, like net */
|
| 530 |
if (! service || ! rc_service_exists (service_to_start))
|
| 531 |
return;
|
| 532 |
|
| 533 |
svc = rc_xstrdup (service);
|
| 534 |
dir = rc_strcatpaths (RC_SVCDIR, "scheduled", basename (svc),
|
| 535 |
(char *) NULL);
|
| 536 |
free (svc);
|
| 537 |
if (! rc_is_dir (dir))
|
| 538 |
if (mkdir (dir, 0755) != 0) {
|
| 539 |
eerror ("mkdir `%s': %s", dir, strerror (errno));
|
| 540 |
free (dir);
|
| 541 |
return;
|
| 542 |
}
|
| 543 |
|
| 544 |
init = rc_resolve_service (service_to_start);
|
| 545 |
svc = rc_xstrdup (service_to_start);
|
| 546 |
file = rc_strcatpaths (dir, basename (svc), (char *) NULL);
|
| 547 |
free (svc);
|
| 548 |
if (! rc_exists (file) && symlink (init, file) != 0)
|
| 549 |
eerror ("symlink `%s' to `%s': %s", init, file, strerror (errno));
|
| 550 |
|
| 551 |
free (init);
|
| 552 |
free (file);
|
| 553 |
free (dir);
|
| 554 |
}
|
| 555 |
librc_hidden_def(rc_schedule_start_service)
|
| 556 |
|
| 557 |
void rc_schedule_clear (const char *service)
|
| 558 |
{
|
| 559 |
char *svc = rc_xstrdup (service);
|
| 560 |
char *dir = rc_strcatpaths (RC_SVCDIR, "scheduled", basename (svc),
|
| 561 |
(char *) NULL);
|
| 562 |
|
| 563 |
free (svc);
|
| 564 |
if (rc_is_dir (dir))
|
| 565 |
rc_rm_dir (dir, true);
|
| 566 |
free (dir);
|
| 567 |
}
|
| 568 |
librc_hidden_def(rc_schedule_clear)
|
| 569 |
|
| 570 |
static time_t get_uptime(void)
|
| 571 |
{
|
| 572 |
#ifdef __linux__
|
| 573 |
struct sysinfo info;
|
| 574 |
|
| 575 |
sysinfo (&info);
|
| 576 |
return (time_t) info.uptime;
|
| 577 |
#else
|
| 578 |
struct timespec tp;
|
| 579 |
|
| 580 |
if (clock_gettime (CLOCK_MONOTONIC, &tp) == -1) {
|
| 581 |
eerror ("clock_gettime: %s", strerror (errno));
|
| 582 |
return -1;
|
| 583 |
}
|
| 584 |
|
| 585 |
return tp.tv_sec;
|
| 586 |
#endif
|
| 587 |
}
|
| 588 |
|
| 589 |
bool rc_wait_service (const char *service)
|
| 590 |
{
|
| 591 |
char *svc;
|
| 592 |
char *base;
|
| 593 |
char *fifo;
|
| 594 |
struct timeval tv;
|
| 595 |
time_t start = get_uptime ();
|
| 596 |
bool retval = false;
|
| 597 |
bool forever = false;
|
| 598 |
|
| 599 |
if (! service)
|
| 600 |
return (false);
|
| 601 |
|
| 602 |
svc = rc_xstrdup (service);
|
| 603 |
base = basename (svc);
|
| 604 |
fifo = rc_strcatpaths (RC_SVCDIR, "exclusive", base, (char *) NULL);
|
| 605 |
/* FIXME: find a better way of doing this
|
| 606 |
* Maybe a setting in the init script? */
|
| 607 |
if (strcmp (base, "checkfs") == 0 || strcmp (base, "checkroot") == 0)
|
| 608 |
forever = true;
|
| 609 |
free (svc);
|
| 610 |
|
| 611 |
while (true) {
|
| 612 |
if (! rc_exists (fifo)) {
|
| 613 |
retval = true;
|
| 614 |
break;
|
| 615 |
}
|
| 616 |
|
| 617 |
tv.tv_sec = 0;
|
| 618 |
tv.tv_usec = WAIT_INTERVAL;
|
| 619 |
if (select (0, 0, 0, 0, &tv) < 0) {
|
| 620 |
if (errno != EINTR) {
|
| 621 |
eerror ("select: %s",strerror (errno));
|
| 622 |
break;
|
| 623 |
}
|
| 624 |
}
|
| 625 |
|
| 626 |
if (! forever) {
|
| 627 |
time_t now = get_uptime();
|
| 628 |
if (now - start > WAIT_MAX)
|
| 629 |
break;
|
| 630 |
}
|
| 631 |
}
|
| 632 |
|
| 633 |
free (fifo);
|
| 634 |
return (retval);
|
| 635 |
}
|
| 636 |
librc_hidden_def(rc_wait_service)
|
| 637 |
|
| 638 |
char **rc_services_in_runlevel (const char *runlevel)
|
| 639 |
{
|
| 640 |
char *dir;
|
| 641 |
char **list = NULL;
|
| 642 |
|
| 643 |
if (! runlevel)
|
| 644 |
return (rc_ls_dir (NULL, RC_INITDIR, RC_LS_INITD));
|
| 645 |
|
| 646 |
/* These special levels never contain any services */
|
| 647 |
if (strcmp (runlevel, RC_LEVEL_SYSINIT) == 0 ||
|
| 648 |
strcmp (runlevel, RC_LEVEL_SINGLE) == 0)
|
| 649 |
return (NULL);
|
| 650 |
|
| 651 |
dir = rc_strcatpaths (RC_RUNLEVELDIR, runlevel, (char *) NULL);
|
| 652 |
if (! rc_is_dir (dir))
|
| 653 |
eerror ("runlevel `%s' does not exist", runlevel);
|
| 654 |
else
|
| 655 |
list = rc_ls_dir (list, dir, RC_LS_INITD);
|
| 656 |
|
| 657 |
free (dir);
|
| 658 |
return (list);
|
| 659 |
}
|
| 660 |
librc_hidden_def(rc_services_in_runlevel)
|
| 661 |
|
| 662 |
char **rc_services_in_state (rc_service_state_t state)
|
| 663 |
{
|
| 664 |
char *dir = rc_strcatpaths (RC_SVCDIR, rc_service_state_names[state],
|
| 665 |
(char *) NULL);
|
| 666 |
char **list = NULL;
|
| 667 |
|
| 668 |
if (state == rc_service_scheduled) {
|
| 669 |
char **dirs = rc_ls_dir (NULL, dir, 0);
|
| 670 |
char *d;
|
| 671 |
int i;
|
| 672 |
|
| 673 |
STRLIST_FOREACH (dirs, d, i) {
|
| 674 |
char *p = rc_strcatpaths (dir, d, (char *) NULL);
|
| 675 |
char **entries = rc_ls_dir (NULL, p, RC_LS_INITD);
|
| 676 |
char *e;
|
| 677 |
int j;
|
| 678 |
|
| 679 |
STRLIST_FOREACH (entries, e, j)
|
| 680 |
list = rc_strlist_addsortu (list, e);
|
| 681 |
|
| 682 |
if (entries)
|
| 683 |
free (entries);
|
| 684 |
}
|
| 685 |
|
| 686 |
if (dirs)
|
| 687 |
free (dirs);
|
| 688 |
} else {
|
| 689 |
if (rc_is_dir (dir))
|
| 690 |
list = rc_ls_dir (list, dir, RC_LS_INITD);
|
| 691 |
}
|
| 692 |
|
| 693 |
free (dir);
|
| 694 |
return (list);
|
| 695 |
}
|
| 696 |
librc_hidden_def(rc_services_in_state)
|
| 697 |
|
| 698 |
bool rc_service_add (const char *runlevel, const char *service)
|
| 699 |
{
|
| 700 |
bool retval;
|
| 701 |
char *init;
|
| 702 |
char *file;
|
| 703 |
char *svc;
|
| 704 |
|
| 705 |
if (! rc_runlevel_exists (runlevel)) {
|
| 706 |
errno = ENOENT;
|
| 707 |
return (false);
|
| 708 |
}
|
| 709 |
|
| 710 |
if (rc_service_in_runlevel (service, runlevel)) {
|
| 711 |
errno = EEXIST;
|
| 712 |
return (false);
|
| 713 |
}
|
| 714 |
|
| 715 |
init = rc_resolve_service (service);
|
| 716 |
svc = rc_xstrdup (service);
|
| 717 |
file = rc_strcatpaths (RC_RUNLEVELDIR, runlevel, basename (svc),
|
| 718 |
(char *) NULL);
|
| 719 |
free (svc);
|
| 720 |
retval = (symlink (init, file) == 0);
|
| 721 |
free (init);
|
| 722 |
free (file);
|
| 723 |
return (retval);
|
| 724 |
}
|
| 725 |
librc_hidden_def(rc_service_add)
|
| 726 |
|
| 727 |
bool rc_service_delete (const char *runlevel, const char *service)
|
| 728 |
{
|
| 729 |
char *file;
|
| 730 |
char *svc;
|
| 731 |
bool retval = false;
|
| 732 |
|
| 733 |
if (! runlevel || ! service)
|
| 734 |
return (false);
|
| 735 |
|
| 736 |
svc = rc_xstrdup (service);
|
| 737 |
file = rc_strcatpaths (RC_RUNLEVELDIR, runlevel, basename (svc),
|
| 738 |
(char *) NULL);
|
| 739 |
free (svc);
|
| 740 |
if (unlink (file) == 0)
|
| 741 |
retval = true;
|
| 742 |
|
| 743 |
free (file);
|
| 744 |
return (retval);
|
| 745 |
}
|
| 746 |
librc_hidden_def(rc_service_delete)
|
| 747 |
|
| 748 |
char **rc_services_scheduled_by (const char *service)
|
| 749 |
{
|
| 750 |
char **dirs = rc_ls_dir (NULL, RC_SVCDIR "scheduled", 0);
|
| 751 |
char **list = NULL;
|
| 752 |
char *dir;
|
| 753 |
int i;
|
| 754 |
|
| 755 |
STRLIST_FOREACH (dirs, dir, i) {
|
| 756 |
char *file = rc_strcatpaths (RC_SVCDIR "scheduled", dir, service,
|
| 757 |
(char *) NULL);
|
| 758 |
if (rc_exists (file))
|
| 759 |
list = rc_strlist_add (list, file);
|
| 760 |
free (file);
|
| 761 |
}
|
| 762 |
rc_strlist_free (dirs);
|
| 763 |
|
| 764 |
return (list);
|
| 765 |
}
|
| 766 |
librc_hidden_def(rc_services_scheduled_by)
|
| 767 |
|
| 768 |
char **rc_services_scheduled (const char *service)
|
| 769 |
{
|
| 770 |
char *svc = rc_xstrdup (service);
|
| 771 |
char *dir = rc_strcatpaths (RC_SVCDIR, "scheduled", basename (svc),
|
| 772 |
(char *) NULL);
|
| 773 |
char **list = NULL;
|
| 774 |
|
| 775 |
if (rc_is_dir (dir))
|
| 776 |
list = rc_ls_dir (list, dir, RC_LS_INITD);
|
| 777 |
|
| 778 |
free (svc);
|
| 779 |
free (dir);
|
| 780 |
return (list);
|
| 781 |
}
|
| 782 |
librc_hidden_def(rc_services_scheduled)
|
| 783 |
|
| 784 |
bool rc_allow_plug (char *service)
|
| 785 |
{
|
| 786 |
char *list;
|
| 787 |
char *p;
|
| 788 |
char *star;
|
| 789 |
char *token;
|
| 790 |
bool allow = true;
|
| 791 |
char *match = getenv ("RC_PLUG_SERVICES");
|
| 792 |
if (! match)
|
| 793 |
return true;
|
| 794 |
|
| 795 |
list = rc_xstrdup (match);
|
| 796 |
p = list;
|
| 797 |
while ((token = strsep (&p, " "))) {
|
| 798 |
bool truefalse = true;
|
| 799 |
if (token[0] == '!') {
|
| 800 |
truefalse = false;
|
| 801 |
token++;
|
| 802 |
}
|
| 803 |
|
| 804 |
star = strchr (token, '*');
|
| 805 |
if (star) {
|
| 806 |
if (strncmp (service, token, star - token) == 0) {
|
| 807 |
allow = truefalse;
|
| 808 |
break;
|
| 809 |
}
|
| 810 |
} else {
|
| 811 |
if (strcmp (service, token) == 0) {
|
| 812 |
allow = truefalse;
|
| 813 |
break;
|
| 814 |
}
|
| 815 |
}
|
| 816 |
}
|
| 817 |
|
| 818 |
free (list);
|
| 819 |
return (allow);
|
| 820 |
}
|
| 821 |
librc_hidden_def(rc_allow_plug)
|
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