| 1 |
/*
|
| 2 |
rc-misc.c
|
| 3 |
rc misc functions
|
| 4 |
Copyright 2007 Gentoo Foundation
|
| 5 |
*/
|
| 6 |
|
| 7 |
#include "librc.h"
|
| 8 |
|
| 9 |
#define ERRX eerrorx("out of memory");
|
| 10 |
|
| 11 |
#define PROFILE_ENV "/etc/profile.env"
|
| 12 |
#define SYS_WHITELIST RC_LIBDIR "conf.d/env_whitelist"
|
| 13 |
#define USR_WHITELIST "/etc/conf.d/env_whitelist"
|
| 14 |
#define RC_CONFIG "/etc/conf.d/rc"
|
| 15 |
|
| 16 |
#define PATH_PREFIX RC_LIBDIR "bin:/bin:/sbin:/usr/bin:/usr/sbin"
|
| 17 |
|
| 18 |
#ifndef S_IXUGO
|
| 19 |
# define S_IXUGO (S_IXUSR | S_IXGRP | S_IXOTH)
|
| 20 |
#endif
|
| 21 |
|
| 22 |
void *rc_xcalloc (size_t n, size_t size)
|
| 23 |
{
|
| 24 |
void *value = calloc (n, size);
|
| 25 |
|
| 26 |
if (value)
|
| 27 |
return value;
|
| 28 |
|
| 29 |
ERRX
|
| 30 |
}
|
| 31 |
librc_hidden_def(rc_xcalloc)
|
| 32 |
|
| 33 |
void *rc_xmalloc (size_t size)
|
| 34 |
{
|
| 35 |
void *value = malloc (size);
|
| 36 |
|
| 37 |
if (value)
|
| 38 |
return (value);
|
| 39 |
|
| 40 |
ERRX
|
| 41 |
}
|
| 42 |
librc_hidden_def(rc_xmalloc)
|
| 43 |
|
| 44 |
void *rc_xrealloc (void *ptr, size_t size)
|
| 45 |
{
|
| 46 |
void *value = realloc (ptr, size);
|
| 47 |
|
| 48 |
if (value)
|
| 49 |
return (value);
|
| 50 |
|
| 51 |
ERRX
|
| 52 |
}
|
| 53 |
librc_hidden_def(rc_xrealloc)
|
| 54 |
|
| 55 |
char *rc_xstrdup (const char *str)
|
| 56 |
{
|
| 57 |
char *value;
|
| 58 |
|
| 59 |
if (! str)
|
| 60 |
return (NULL);
|
| 61 |
|
| 62 |
value = strdup (str);
|
| 63 |
|
| 64 |
if (value)
|
| 65 |
return (value);
|
| 66 |
|
| 67 |
ERRX
|
| 68 |
}
|
| 69 |
librc_hidden_def(rc_xstrdup)
|
| 70 |
|
| 71 |
bool rc_is_env (const char *var, const char *val)
|
| 72 |
{
|
| 73 |
char *v;
|
| 74 |
|
| 75 |
if (! var)
|
| 76 |
return (false);
|
| 77 |
|
| 78 |
v = getenv (var);
|
| 79 |
if (! v)
|
| 80 |
return (val == NULL ? true : false);
|
| 81 |
|
| 82 |
return (strcasecmp (v, val) == 0 ? true : false);
|
| 83 |
}
|
| 84 |
librc_hidden_def(rc_is_env)
|
| 85 |
|
| 86 |
char *rc_strcatpaths (const char *path1, const char *paths, ...)
|
| 87 |
{
|
| 88 |
va_list ap;
|
| 89 |
int length;
|
| 90 |
int i;
|
| 91 |
char *p;
|
| 92 |
char *path;
|
| 93 |
char *pathp;
|
| 94 |
|
| 95 |
if (! path1 || ! paths)
|
| 96 |
return (NULL);
|
| 97 |
|
| 98 |
length = strlen (path1) + strlen (paths) + 3;
|
| 99 |
i = 0;
|
| 100 |
va_start (ap, paths);
|
| 101 |
while ((p = va_arg (ap, char *)) != NULL)
|
| 102 |
length += strlen (p) + 1;
|
| 103 |
va_end (ap);
|
| 104 |
|
| 105 |
path = rc_xmalloc (length);
|
| 106 |
memset (path, 0, length);
|
| 107 |
memcpy (path, path1, strlen (path1));
|
| 108 |
pathp = path + strlen (path1) - 1;
|
| 109 |
if (*pathp != '/') {
|
| 110 |
pathp++;
|
| 111 |
*pathp++ = '/';
|
| 112 |
}
|
| 113 |
else
|
| 114 |
pathp++;
|
| 115 |
memcpy (pathp, paths, strlen (paths));
|
| 116 |
pathp += strlen (paths);
|
| 117 |
|
| 118 |
va_start (ap, paths);
|
| 119 |
while ((p = va_arg (ap, char *)) != NULL) {
|
| 120 |
if (*pathp != '/')
|
| 121 |
*pathp++ = '/';
|
| 122 |
i = strlen (p);
|
| 123 |
memcpy (pathp, p, i);
|
| 124 |
pathp += i;
|
| 125 |
}
|
| 126 |
va_end (ap);
|
| 127 |
|
| 128 |
*pathp++ = 0;
|
| 129 |
|
| 130 |
return (path);
|
| 131 |
}
|
| 132 |
librc_hidden_def(rc_strcatpaths)
|
| 133 |
|
| 134 |
bool rc_exists (const char *pathname)
|
| 135 |
{
|
| 136 |
struct stat buf;
|
| 137 |
|
| 138 |
if (! pathname)
|
| 139 |
return (false);
|
| 140 |
|
| 141 |
if (stat (pathname, &buf) == 0)
|
| 142 |
return (true);
|
| 143 |
|
| 144 |
errno = 0;
|
| 145 |
return (false);
|
| 146 |
}
|
| 147 |
librc_hidden_def(rc_exists)
|
| 148 |
|
| 149 |
bool rc_is_file (const char *pathname)
|
| 150 |
{
|
| 151 |
struct stat buf;
|
| 152 |
|
| 153 |
if (! pathname)
|
| 154 |
return (false);
|
| 155 |
|
| 156 |
if (stat (pathname, &buf) == 0)
|
| 157 |
return (S_ISREG (buf.st_mode));
|
| 158 |
|
| 159 |
errno = 0;
|
| 160 |
return (false);
|
| 161 |
}
|
| 162 |
librc_hidden_def(rc_is_file)
|
| 163 |
|
| 164 |
bool rc_is_dir (const char *pathname)
|
| 165 |
{
|
| 166 |
struct stat buf;
|
| 167 |
|
| 168 |
if (! pathname)
|
| 169 |
return (false);
|
| 170 |
|
| 171 |
if (stat (pathname, &buf) == 0)
|
| 172 |
return (S_ISDIR (buf.st_mode));
|
| 173 |
|
| 174 |
errno = 0;
|
| 175 |
return (false);
|
| 176 |
}
|
| 177 |
librc_hidden_def(rc_is_dir)
|
| 178 |
|
| 179 |
bool rc_is_link (const char *pathname)
|
| 180 |
{
|
| 181 |
struct stat buf;
|
| 182 |
|
| 183 |
if (! pathname)
|
| 184 |
return (false);
|
| 185 |
|
| 186 |
if (lstat (pathname, &buf) == 0)
|
| 187 |
return (S_ISLNK (buf.st_mode));
|
| 188 |
|
| 189 |
errno = 0;
|
| 190 |
return (false);
|
| 191 |
}
|
| 192 |
librc_hidden_def(rc_is_link)
|
| 193 |
|
| 194 |
bool rc_is_exec (const char *pathname)
|
| 195 |
{
|
| 196 |
struct stat buf;
|
| 197 |
|
| 198 |
if (! pathname)
|
| 199 |
return (false);
|
| 200 |
|
| 201 |
if (lstat (pathname, &buf) == 0)
|
| 202 |
return (buf.st_mode & S_IXUGO);
|
| 203 |
|
| 204 |
errno = 0;
|
| 205 |
return (false);
|
| 206 |
}
|
| 207 |
librc_hidden_def(rc_is_exec)
|
| 208 |
|
| 209 |
char **rc_ls_dir (char **list, const char *dir, int options)
|
| 210 |
{
|
| 211 |
DIR *dp;
|
| 212 |
struct dirent *d;
|
| 213 |
|
| 214 |
if (! dir)
|
| 215 |
return (list);
|
| 216 |
|
| 217 |
if ((dp = opendir (dir)) == NULL) {
|
| 218 |
eerror ("failed to opendir `%s': %s", dir, strerror (errno));
|
| 219 |
return (list);
|
| 220 |
}
|
| 221 |
|
| 222 |
errno = 0;
|
| 223 |
while (((d = readdir (dp)) != NULL) && errno == 0) {
|
| 224 |
if (d->d_name[0] != '.') {
|
| 225 |
if (options & RC_LS_INITD) {
|
| 226 |
int l = strlen (d->d_name);
|
| 227 |
char *init = rc_strcatpaths (RC_INITDIR, d->d_name,
|
| 228 |
(char *) NULL);
|
| 229 |
bool ok = rc_exists (init);
|
| 230 |
free (init);
|
| 231 |
if (! ok)
|
| 232 |
continue;
|
| 233 |
|
| 234 |
/* .sh files are not init scripts */
|
| 235 |
if (l > 2 && d->d_name[l - 3] == '.' &&
|
| 236 |
d->d_name[l - 2] == 's' &&
|
| 237 |
d->d_name[l - 1] == 'h')
|
| 238 |
continue;
|
| 239 |
}
|
| 240 |
list = rc_strlist_addsort (list, d->d_name);
|
| 241 |
}
|
| 242 |
}
|
| 243 |
closedir (dp);
|
| 244 |
|
| 245 |
if (errno != 0) {
|
| 246 |
eerror ("failed to readdir `%s': %s", dir, strerror (errno));
|
| 247 |
rc_strlist_free (list);
|
| 248 |
return (NULL);
|
| 249 |
}
|
| 250 |
|
| 251 |
return (list);
|
| 252 |
}
|
| 253 |
librc_hidden_def(rc_ls_dir)
|
| 254 |
|
| 255 |
bool rc_rm_dir (const char *pathname, bool top)
|
| 256 |
{
|
| 257 |
DIR *dp;
|
| 258 |
struct dirent *d;
|
| 259 |
|
| 260 |
if (! pathname)
|
| 261 |
return (false);
|
| 262 |
|
| 263 |
if ((dp = opendir (pathname)) == NULL) {
|
| 264 |
eerror ("failed to opendir `%s': %s", pathname, strerror (errno));
|
| 265 |
return (false);
|
| 266 |
}
|
| 267 |
|
| 268 |
errno = 0;
|
| 269 |
while (((d = readdir (dp)) != NULL) && errno == 0) {
|
| 270 |
if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0) {
|
| 271 |
char *tmp = rc_strcatpaths (pathname, d->d_name, (char *) NULL);
|
| 272 |
if (d->d_type == DT_DIR) {
|
| 273 |
if (! rc_rm_dir (tmp, true))
|
| 274 |
{
|
| 275 |
free (tmp);
|
| 276 |
closedir (dp);
|
| 277 |
return (false);
|
| 278 |
}
|
| 279 |
} else {
|
| 280 |
if (unlink (tmp)) {
|
| 281 |
eerror ("failed to unlink `%s': %s", tmp, strerror (errno));
|
| 282 |
free (tmp);
|
| 283 |
closedir (dp);
|
| 284 |
return (false);
|
| 285 |
}
|
| 286 |
}
|
| 287 |
free (tmp);
|
| 288 |
}
|
| 289 |
}
|
| 290 |
if (errno != 0)
|
| 291 |
eerror ("failed to readdir `%s': %s", pathname, strerror (errno));
|
| 292 |
closedir (dp);
|
| 293 |
|
| 294 |
if (top && rmdir (pathname) != 0) {
|
| 295 |
eerror ("failed to rmdir `%s': %s", pathname, strerror (errno));
|
| 296 |
return false;
|
| 297 |
}
|
| 298 |
|
| 299 |
return (true);
|
| 300 |
}
|
| 301 |
librc_hidden_def(rc_rm_dir)
|
| 302 |
|
| 303 |
char **rc_get_config (char **list, const char *file)
|
| 304 |
{
|
| 305 |
FILE *fp;
|
| 306 |
char buffer[RC_LINEBUFFER];
|
| 307 |
char *p;
|
| 308 |
char *token;
|
| 309 |
char *line;
|
| 310 |
char *linep;
|
| 311 |
char *linetok;
|
| 312 |
int i = 0;
|
| 313 |
bool replaced;
|
| 314 |
char *entry;
|
| 315 |
char *newline;
|
| 316 |
|
| 317 |
if (! (fp = fopen (file, "r"))) {
|
| 318 |
ewarn ("load_config_file `%s': %s", file, strerror (errno));
|
| 319 |
return (list);
|
| 320 |
}
|
| 321 |
|
| 322 |
while (fgets (buffer, RC_LINEBUFFER, fp)) {
|
| 323 |
p = buffer;
|
| 324 |
|
| 325 |
/* Strip leading spaces/tabs */
|
| 326 |
while ((*p == ' ') || (*p == '\t'))
|
| 327 |
p++;
|
| 328 |
|
| 329 |
if (! p || strlen (p) < 3 || p[0] == '#')
|
| 330 |
continue;
|
| 331 |
|
| 332 |
/* Get entry */
|
| 333 |
token = strsep (&p, "=");
|
| 334 |
if (! token)
|
| 335 |
continue;
|
| 336 |
|
| 337 |
entry = rc_xstrdup (token);
|
| 338 |
|
| 339 |
do {
|
| 340 |
/* Bash variables are usually quoted */
|
| 341 |
token = strsep (&p, "\"\'");
|
| 342 |
} while ((token) && (strlen (token) == 0));
|
| 343 |
|
| 344 |
/* Drop a newline if that's all we have */
|
| 345 |
i = strlen (token) - 1;
|
| 346 |
if (token[i] == 10)
|
| 347 |
token[i] = 0;
|
| 348 |
|
| 349 |
i = strlen (entry) + strlen (token) + 2;
|
| 350 |
newline = rc_xmalloc (i);
|
| 351 |
snprintf (newline, i, "%s=%s", entry, token);
|
| 352 |
|
| 353 |
replaced = false;
|
| 354 |
/* In shells the last item takes precedence, so we need to remove
|
| 355 |
any prior values we may already have */
|
| 356 |
STRLIST_FOREACH (list, line, i) {
|
| 357 |
char *tmp = rc_xstrdup (line);
|
| 358 |
linep = tmp;
|
| 359 |
linetok = strsep (&linep, "=");
|
| 360 |
if (strcmp (linetok, entry) == 0) {
|
| 361 |
/* We have a match now - to save time we directly replace it */
|
| 362 |
free (list[i - 1]);
|
| 363 |
list[i - 1] = newline;
|
| 364 |
replaced = true;
|
| 365 |
free (tmp);
|
| 366 |
break;
|
| 367 |
}
|
| 368 |
free (tmp);
|
| 369 |
}
|
| 370 |
|
| 371 |
if (! replaced) {
|
| 372 |
list = rc_strlist_addsort (list, newline);
|
| 373 |
free (newline);
|
| 374 |
}
|
| 375 |
free (entry);
|
| 376 |
}
|
| 377 |
fclose (fp);
|
| 378 |
|
| 379 |
return (list);
|
| 380 |
}
|
| 381 |
librc_hidden_def(rc_get_config)
|
| 382 |
|
| 383 |
char *rc_get_config_entry (char **list, const char *entry)
|
| 384 |
{
|
| 385 |
char *line;
|
| 386 |
int i;
|
| 387 |
char *p;
|
| 388 |
|
| 389 |
STRLIST_FOREACH (list, line, i) {
|
| 390 |
p = strchr (line, '=');
|
| 391 |
if (p && strncmp (entry, line, p - line) == 0)
|
| 392 |
return (p += 1);
|
| 393 |
}
|
| 394 |
|
| 395 |
return (NULL);
|
| 396 |
}
|
| 397 |
librc_hidden_def(rc_get_config_entry)
|
| 398 |
|
| 399 |
char **rc_get_list (char **list, const char *file)
|
| 400 |
{
|
| 401 |
FILE *fp;
|
| 402 |
char buffer[RC_LINEBUFFER];
|
| 403 |
char *p;
|
| 404 |
char *token;
|
| 405 |
|
| 406 |
if (! (fp = fopen (file, "r"))) {
|
| 407 |
ewarn ("rc_get_list `%s': %s", file, strerror (errno));
|
| 408 |
return (list);
|
| 409 |
}
|
| 410 |
|
| 411 |
while (fgets (buffer, RC_LINEBUFFER, fp)) {
|
| 412 |
p = buffer;
|
| 413 |
|
| 414 |
/* Strip leading spaces/tabs */
|
| 415 |
while ((*p == ' ') || (*p == '\t'))
|
| 416 |
p++;
|
| 417 |
|
| 418 |
/* Get entry - we do not want comments */
|
| 419 |
token = strsep (&p, "#");
|
| 420 |
if (token && (strlen (token) > 1)) {
|
| 421 |
/* Stip the newline if present */
|
| 422 |
if (token[strlen (token) - 1] == '\n')
|
| 423 |
token[strlen (token) - 1] = 0;
|
| 424 |
|
| 425 |
list = rc_strlist_add (list, token);
|
| 426 |
}
|
| 427 |
}
|
| 428 |
fclose (fp);
|
| 429 |
|
| 430 |
return (list);
|
| 431 |
}
|
| 432 |
librc_hidden_def(rc_get_list)
|
| 433 |
|
| 434 |
char **rc_filter_env (void)
|
| 435 |
{
|
| 436 |
char **env = NULL;
|
| 437 |
char **whitelist = NULL;
|
| 438 |
char *env_name = NULL;
|
| 439 |
char **profile = NULL;
|
| 440 |
int count = 0;
|
| 441 |
bool got_path = false;
|
| 442 |
char *env_var;
|
| 443 |
int env_len;
|
| 444 |
char *p;
|
| 445 |
char *token;
|
| 446 |
char *sep;
|
| 447 |
char *e;
|
| 448 |
int pplen = strlen (PATH_PREFIX);
|
| 449 |
|
| 450 |
whitelist = rc_get_list (whitelist, SYS_WHITELIST);
|
| 451 |
if (! whitelist)
|
| 452 |
ewarn ("system environment whitelist (" SYS_WHITELIST ") missing");
|
| 453 |
|
| 454 |
whitelist = rc_get_list (whitelist, USR_WHITELIST);
|
| 455 |
|
| 456 |
if (! whitelist)
|
| 457 |
return (NULL);
|
| 458 |
|
| 459 |
if (rc_is_file (PROFILE_ENV))
|
| 460 |
profile = rc_get_config (profile, PROFILE_ENV);
|
| 461 |
|
| 462 |
STRLIST_FOREACH (whitelist, env_name, count) {
|
| 463 |
char *space = strchr (env_name, ' ');
|
| 464 |
if (space)
|
| 465 |
*space = 0;
|
| 466 |
|
| 467 |
env_var = getenv (env_name);
|
| 468 |
|
| 469 |
if (! env_var && profile) {
|
| 470 |
env_len = strlen (env_name) + strlen ("export ") + 1;
|
| 471 |
p = rc_xmalloc (sizeof (char *) * env_len);
|
| 472 |
snprintf (p, env_len, "export %s", env_name);
|
| 473 |
env_var = rc_get_config_entry (profile, p);
|
| 474 |
free (p);
|
| 475 |
}
|
| 476 |
|
| 477 |
if (! env_var)
|
| 478 |
continue;
|
| 479 |
|
| 480 |
/* Ensure our PATH is prefixed with the system locations first
|
| 481 |
for a little extra security */
|
| 482 |
if (strcmp (env_name, "PATH") == 0 &&
|
| 483 |
strncmp (PATH_PREFIX, env_var, pplen) != 0)
|
| 484 |
{
|
| 485 |
got_path = true;
|
| 486 |
env_len = strlen (env_name) + strlen (env_var) + pplen + 2;
|
| 487 |
e = p = rc_xmalloc (sizeof (char *) * env_len);
|
| 488 |
p += snprintf (e, env_len, "%s=%s", env_name, PATH_PREFIX);
|
| 489 |
|
| 490 |
/* Now go through the env var and only add bits not in our PREFIX */
|
| 491 |
sep = env_var;
|
| 492 |
while ((token = strsep (&sep, ":"))) {
|
| 493 |
char *np = rc_xstrdup (PATH_PREFIX);
|
| 494 |
char *npp = np;
|
| 495 |
char *tok = NULL;
|
| 496 |
while ((tok = strsep (&npp, ":")))
|
| 497 |
if (strcmp (tok, token) == 0)
|
| 498 |
break;
|
| 499 |
if (! tok)
|
| 500 |
p += snprintf (p, env_len - (p - e), ":%s", token);
|
| 501 |
free (np);
|
| 502 |
}
|
| 503 |
*p++ = 0;
|
| 504 |
} else {
|
| 505 |
env_len = strlen (env_name) + strlen (env_var) + 2;
|
| 506 |
e = rc_xmalloc (sizeof (char *) * env_len);
|
| 507 |
snprintf (e, env_len, "%s=%s", env_name, env_var);
|
| 508 |
}
|
| 509 |
|
| 510 |
env = rc_strlist_add (env, e);
|
| 511 |
free (e);
|
| 512 |
}
|
| 513 |
|
| 514 |
/* We filtered the env but didn't get a PATH? Very odd.
|
| 515 |
However, we do need a path, so use a default. */
|
| 516 |
if (! got_path) {
|
| 517 |
env_len = strlen ("PATH=") + strlen (PATH_PREFIX) + 2;
|
| 518 |
p = rc_xmalloc (sizeof (char *) * env_len);
|
| 519 |
snprintf (p, env_len, "PATH=%s", PATH_PREFIX);
|
| 520 |
env = rc_strlist_add (env, p);
|
| 521 |
free (p);
|
| 522 |
}
|
| 523 |
|
| 524 |
rc_strlist_free (whitelist);
|
| 525 |
rc_strlist_free (profile);
|
| 526 |
|
| 527 |
return (env);
|
| 528 |
}
|
| 529 |
librc_hidden_def(rc_filter_env)
|
| 530 |
|
| 531 |
/* Other systems may need this at some point, but for now it's Linux only */
|
| 532 |
#ifdef __linux__
|
| 533 |
static bool file_regex (const char *file, const char *regex)
|
| 534 |
{
|
| 535 |
FILE *fp;
|
| 536 |
char buffer[RC_LINEBUFFER];
|
| 537 |
regex_t re;
|
| 538 |
bool retval = false;
|
| 539 |
int result;
|
| 540 |
|
| 541 |
if (! rc_exists (file))
|
| 542 |
return (false);
|
| 543 |
|
| 544 |
if (! (fp = fopen (file, "r"))) {
|
| 545 |
ewarn ("file_regex `%s': %s", file, strerror (errno));
|
| 546 |
return (false);
|
| 547 |
}
|
| 548 |
|
| 549 |
if ((result = regcomp (&re, regex, REG_EXTENDED | REG_NOSUB)) != 0) {
|
| 550 |
fclose (fp);
|
| 551 |
regerror (result, &re, buffer, sizeof (buffer));
|
| 552 |
eerror ("file_regex: %s", buffer);
|
| 553 |
return (false);
|
| 554 |
}
|
| 555 |
|
| 556 |
while (fgets (buffer, RC_LINEBUFFER, fp)) {
|
| 557 |
if (regexec (&re, buffer, 0, NULL, 0) == 0)
|
| 558 |
{
|
| 559 |
retval = true;
|
| 560 |
break;
|
| 561 |
}
|
| 562 |
}
|
| 563 |
fclose (fp);
|
| 564 |
regfree (&re);
|
| 565 |
|
| 566 |
return (retval);
|
| 567 |
}
|
| 568 |
#endif
|
| 569 |
|
| 570 |
char **rc_config_env (char **env)
|
| 571 |
{
|
| 572 |
char *line;
|
| 573 |
int i;
|
| 574 |
char *p;
|
| 575 |
char **config;
|
| 576 |
char *e;
|
| 577 |
char sys[6];
|
| 578 |
struct utsname uts;
|
| 579 |
bool has_net_fs_list = false;
|
| 580 |
FILE *fp;
|
| 581 |
char buffer[PATH_MAX];
|
| 582 |
|
| 583 |
/* Don't trust environ for softlevel yet */
|
| 584 |
snprintf (buffer, PATH_MAX, "%s.%s", RC_CONFIG, rc_get_runlevel());
|
| 585 |
if (rc_exists (buffer))
|
| 586 |
config = rc_get_config (NULL, buffer);
|
| 587 |
else
|
| 588 |
config = rc_get_config (NULL, RC_CONFIG);
|
| 589 |
|
| 590 |
STRLIST_FOREACH (config, line, i) {
|
| 591 |
p = strchr (line, '=');
|
| 592 |
if (! p)
|
| 593 |
continue;
|
| 594 |
|
| 595 |
*p = 0;
|
| 596 |
e = getenv (line);
|
| 597 |
if (! e) {
|
| 598 |
*p = '=';
|
| 599 |
env = rc_strlist_add (env, line);
|
| 600 |
} else {
|
| 601 |
int len = strlen (line) + strlen (e) + 2;
|
| 602 |
char *new = rc_xmalloc (sizeof (char *) * len);
|
| 603 |
snprintf (new, len, "%s=%s", line, e);
|
| 604 |
env = rc_strlist_add (env, new);
|
| 605 |
free (new);
|
| 606 |
}
|
| 607 |
}
|
| 608 |
rc_strlist_free (config);
|
| 609 |
|
| 610 |
/* One char less to drop the trailing / */
|
| 611 |
i = strlen ("RC_LIBDIR=") + strlen (RC_LIBDIR);
|
| 612 |
line = rc_xmalloc (sizeof (char *) * i);
|
| 613 |
snprintf (line, i, "RC_LIBDIR=" RC_LIBDIR);
|
| 614 |
env = rc_strlist_add (env, line);
|
| 615 |
free (line);
|
| 616 |
|
| 617 |
/* One char less to drop the trailing / */
|
| 618 |
i = strlen ("RC_SVCDIR=") + strlen (RC_SVCDIR);
|
| 619 |
line = rc_xmalloc (sizeof (char *) * i);
|
| 620 |
snprintf (line, i, "RC_SVCDIR=" RC_SVCDIR);
|
| 621 |
env = rc_strlist_add (env, line);
|
| 622 |
free (line);
|
| 623 |
|
| 624 |
env = rc_strlist_add (env, "RC_BOOTLEVEL=" RC_LEVEL_BOOT);
|
| 625 |
|
| 626 |
p = rc_get_runlevel ();
|
| 627 |
i = strlen ("RC_SOFTLEVEL=") + strlen (p) + 1;
|
| 628 |
line = rc_xmalloc (sizeof (char *) * i);
|
| 629 |
snprintf (line, i, "RC_SOFTLEVEL=%s", p);
|
| 630 |
env = rc_strlist_add (env, line);
|
| 631 |
free (line);
|
| 632 |
|
| 633 |
if (rc_exists (RC_SVCDIR "ksoftlevel")) {
|
| 634 |
if (! (fp = fopen (RC_SVCDIR "ksoftlevel", "r")))
|
| 635 |
eerror ("fopen `%s': %s", RC_SVCDIR "ksoftlevel",
|
| 636 |
strerror (errno));
|
| 637 |
else {
|
| 638 |
memset (buffer, 0, sizeof (buffer));
|
| 639 |
if (fgets (buffer, sizeof (buffer), fp)) {
|
| 640 |
i = strlen (buffer) - 1;
|
| 641 |
if (buffer[i] == '\n')
|
| 642 |
buffer[i] = 0;
|
| 643 |
i += strlen ("RC_DEFAULTLEVEL=") + 2;
|
| 644 |
line = rc_xmalloc (sizeof (char *) * i);
|
| 645 |
snprintf (line, i, "RC_DEFAULTLEVEL=%s", buffer);
|
| 646 |
env = rc_strlist_add (env, line);
|
| 647 |
free (line);
|
| 648 |
}
|
| 649 |
fclose (fp);
|
| 650 |
}
|
| 651 |
} else
|
| 652 |
env = rc_strlist_add (env, "RC_DEFAULTLEVEL=" RC_LEVEL_DEFAULT);
|
| 653 |
|
| 654 |
/* Store the name of the tty that stdout is connected to
|
| 655 |
* We do this so our init scripts can call eflush without any knowledge
|
| 656 |
* of our fd's */
|
| 657 |
if (isatty (fileno (stdout))) {
|
| 658 |
if ((p = rc_xstrdup (ttyname (fileno (stdout))))) {
|
| 659 |
i = strlen ("RC_TTY=") + strlen (p) + 1;
|
| 660 |
line = rc_xmalloc (sizeof (char *) * i);
|
| 661 |
snprintf (line, i, "RC_TTY=%s", p);
|
| 662 |
env = rc_strlist_add (env, line);
|
| 663 |
free (p);
|
| 664 |
free (line);
|
| 665 |
}
|
| 666 |
}
|
| 667 |
|
| 668 |
memset (sys, 0, sizeof (sys));
|
| 669 |
|
| 670 |
/* Linux can run some funky stuff like Xen, VServer, UML, etc
|
| 671 |
We store this special system in RC_SYS so our scripts run fast */
|
| 672 |
#ifdef __linux__
|
| 673 |
if (rc_is_dir ("/proc/xen")) {
|
| 674 |
fp = fopen ("/proc/xen/capabilities", "r");
|
| 675 |
if (fp) {
|
| 676 |
fclose (fp);
|
| 677 |
if (file_regex ("/proc/xen/capabilities", "control_d"))
|
| 678 |
snprintf (sys, sizeof (sys), "XENU");
|
| 679 |
}
|
| 680 |
if (! sys)
|
| 681 |
snprintf (sys, sizeof (sys), "XEN0");
|
| 682 |
} else if (file_regex ("/proc/cpuinfo", "UML"))
|
| 683 |
snprintf (sys, sizeof (sys), "UML");
|
| 684 |
else if (file_regex ("/proc/self/status",
|
| 685 |
"(s_context|VxID|envID):[[:space:]]*[1-9]"))
|
| 686 |
snprintf (sys, sizeof (sys), "VPS");
|
| 687 |
#endif
|
| 688 |
|
| 689 |
/* Only add a NET_FS list if not defined */
|
| 690 |
STRLIST_FOREACH (env, line, i)
|
| 691 |
if (strncmp (line, "RC_NET_FS_LIST=", strlen ("RC_NET_FS_LIST=")) == 0) {
|
| 692 |
has_net_fs_list = true;
|
| 693 |
break;
|
| 694 |
}
|
| 695 |
|
| 696 |
if (! has_net_fs_list) {
|
| 697 |
i = strlen ("RC_NET_FS_LIST=") + strlen (RC_NET_FS_LIST_DEFAULT) + 1;
|
| 698 |
line = rc_xmalloc (sizeof (char *) * i);
|
| 699 |
snprintf (line, i, "RC_NET_FS_LIST=%s", RC_NET_FS_LIST_DEFAULT);
|
| 700 |
env = rc_strlist_add (env, line);
|
| 701 |
free (line);
|
| 702 |
}
|
| 703 |
|
| 704 |
if (sys[0]) {
|
| 705 |
i = strlen ("RC_SYS=") + strlen (sys) + 2;
|
| 706 |
line = rc_xmalloc (sizeof (char *) * i);
|
| 707 |
snprintf (line, i, "RC_SYS=%s", sys);
|
| 708 |
env = rc_strlist_add (env, line);
|
| 709 |
free (line);
|
| 710 |
}
|
| 711 |
|
| 712 |
/* Some scripts may need to take a different code path if Linux/FreeBSD, etc
|
| 713 |
To save on calling uname, we store it in an environment variable */
|
| 714 |
if (uname (&uts) == 0) {
|
| 715 |
i = strlen ("RC_UNAME=") + strlen (uts.sysname) + 2;
|
| 716 |
line = rc_xmalloc (sizeof (char *) * i);
|
| 717 |
snprintf (line, i, "RC_UNAME=%s", uts.sysname);
|
| 718 |
env = rc_strlist_add (env, line);
|
| 719 |
free (line);
|
| 720 |
}
|
| 721 |
|
| 722 |
return (env);
|
| 723 |
}
|
| 724 |
librc_hidden_def(rc_config_env)
|
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| 
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