/[path-sandbox]/trunk/src/sandbox.c
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Revision 108 - (show annotations) (download) (as text)
Wed Jun 8 13:52:33 2005 UTC (9 years, 2 months ago) by azarah
Original Path: trunk/sandbox.c
File MIME type: text/x-csrc
File size: 19610 byte(s)
Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360.  Also
make sure we re-export the new TMPDIR environment variable.

1 /*
2 ** Path sandbox for the gentoo linux portage package system, initially
3 ** based on the ROCK Linux Wrapper for getting a list of created files
4 **
5 ** to integrate with bash, bash should have been built like this
6 **
7 ** ./configure --prefix=<prefix> --host=<host> --without-gnu-malloc
8 **
9 ** it's very important that the --enable-static-link option is NOT specified
10 **
11 ** Copyright (C) 2001 Geert Bevin, Uwyn, http://www.uwyn.com
12 ** Distributed under the terms of the GNU General Public License, v2 or later
13 ** Author : Geert Bevin <gbevin@uwyn.com>
14 ** $Header$
15 */
16
17 /* #define _GNU_SOURCE */
18
19 #include <errno.h>
20 #include <fcntl.h>
21 #include <signal.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <limits.h>
25 #include <string.h>
26 #include <sys/file.h>
27 #include <sys/stat.h>
28 #include <sys/time.h>
29 #include <sys/types.h>
30 #include <sys/resource.h>
31 #include <sys/wait.h>
32 #include <unistd.h>
33 #include <fcntl.h>
34 #include "sandbox.h"
35
36 struct sandbox_info_t {
37 char sandbox_log[SB_PATH_MAX];
38 char sandbox_debug_log[SB_PATH_MAX];
39 char sandbox_dir[SB_PATH_MAX];
40 char sandbox_lib[SB_PATH_MAX];
41 char sandbox_rc[SB_PATH_MAX];
42 char *sandbox_pids_file;
43 char portage_tmp_dir[SB_PATH_MAX];
44 char var_tmp_dir[SB_PATH_MAX];
45 char tmp_dir[SB_PATH_MAX];
46 char *home_dir;
47 } sandbox_info_t;
48
49 static char *tmp_dir;
50
51 static int cleaned_up = 0;
52 static int print_debug = 0;
53 static int stop_called = 0;
54
55 /* Read pids file, and load active pids into an array. Return number of pids in array */
56 int load_active_pids(int fd, int **pids)
57 {
58 char *data = NULL;
59 char *ptr = NULL, *ptr2 = NULL;
60 int my_pid;
61 int num_pids = 0;
62 long len;
63
64 pids[0] = NULL;
65
66 len = file_length(fd);
67
68 /* Allocate and zero datablock to read pids file */
69 data = (char *)malloc((len + 1) * sizeof(char));
70 memset(data, 0, len + 1);
71
72 /* Start at beginning of file */
73 lseek(fd, 0L, SEEK_SET);
74
75 /* read entire file into a buffer */
76 read(fd, data, len);
77
78 ptr = data;
79
80 /* Loop and read all pids */
81 while (1) {
82 /* Find new line */
83 ptr2 = strchr(ptr, '\n');
84 if (ptr2 == NULL)
85 break; /* No more PIDs */
86
87 /* Clear the \n. And ptr should have a null-terminated decimal string */
88 ptr2[0] = 0;
89
90 my_pid = atoi(ptr);
91
92 /* If the PID is still alive, add it to our array */
93 if ((0 != my_pid) && (0 == kill(my_pid, 0))) {
94 pids[0] = (int *)realloc(pids[0], (num_pids + 1) * sizeof(int));
95 pids[0][num_pids] = my_pid;
96 num_pids++;
97 }
98
99 /* Put ptr past the NULL we just wrote */
100 ptr = ptr2 + 1;
101 }
102
103 if (data)
104 free(data);
105 data = NULL;
106
107 return num_pids;
108 }
109
110 int write_pids_file(struct sandbox_info_t *sandbox_info)
111 {
112 int pids_file = -1;
113 int *pids_array = NULL;
114 int num_of_pids = 0;
115 int i = 0, success = 1;
116
117 char pid_string[SB_BUF_LEN];
118
119 if (file_exist(sandbox_info->sandbox_pids_file, 1) < 0) {
120 fprintf(stderr, ">>> %s is not a regular file\n",
121 sandbox_info->sandbox_pids_file);
122 return -1;
123 } else {
124 pids_file = file_open(sandbox_info->sandbox_pids_file,
125 "r+", 1, 0664, "portage");
126 if (-1 == pids_file)
127 return -1;
128 }
129
130 /* Grab still active pids */
131 num_of_pids = load_active_pids(pids_file, &pids_array);
132
133 /* Zero out file */
134 file_truncate(pids_file);
135
136 /* Output active pids, and append our pid */
137 for (i = 0; i < num_of_pids + 1; i++) {
138 /* Time for our entry */
139 if (i == num_of_pids)
140 sprintf(pid_string, "%d\n", getpid());
141 else
142 sprintf(pid_string, "%d\n", pids_array[i]);
143
144 if (write(pids_file, pid_string, strlen(pid_string)) != strlen(pid_string)) {
145 success = 0;
146 break;
147 }
148 }
149
150 /* Clean pids_array */
151 if (pids_array)
152 free(pids_array);
153
154 /* We're done with the pids file */
155 file_close(pids_file);
156
157 if (!success)
158 return -1;
159
160 return 0;
161 }
162
163 int sandbox_setup(char *argv[], struct sandbox_info_t *sandbox_info)
164 {
165 if (NULL == realpath(getenv(ENV_PORTAGE_TMPDIR) ? getenv(ENV_PORTAGE_TMPDIR)
166 : PORTAGE_TMPDIR,
167 sandbox_info->portage_tmp_dir)) {
168 perror(">>> get portage_tmp_dir");
169 return -1;
170 }
171 setenv(ENV_PORTAGE_TMPDIR, sandbox_info->portage_tmp_dir, 1);
172
173 if (NULL == realpath(VAR_TMPDIR, sandbox_info->var_tmp_dir)) {
174 perror(">>> get var_tmp_dir");
175 return -1;
176 }
177
178 if (-1 == get_tmp_dir(sandbox_info->tmp_dir)) {
179 perror(">>> get tmp_dir");
180 return -1;
181 }
182 tmp_dir = sandbox_info->tmp_dir;
183 setenv(ENV_TMPDIR, tmp_dir, 1);
184
185 sandbox_info->home_dir = getenv("HOME");
186 if (!sandbox_info->home_dir) {
187 sandbox_info->home_dir = tmp_dir;
188 setenv("HOME", sandbox_info->home_dir, 1);
189 }
190
191 /* Generate base sandbox path */
192 snprintf(sandbox_info->sandbox_dir, SB_PATH_MAX, "%s/",
193 get_sandbox_path(argv[0]));
194
195 /* Generate sandbox lib path */
196 snprintf(sandbox_info->sandbox_lib, SB_PATH_MAX, "%s",
197 get_sandbox_lib(sandbox_info->sandbox_dir));
198
199 /* Generate sandbox pids-file path */
200 sandbox_info->sandbox_pids_file = get_sandbox_pids_file(tmp_dir);
201
202 /* Generate sandbox bashrc path */
203 snprintf(sandbox_info->sandbox_rc, SB_PATH_MAX, "%s",
204 get_sandbox_rc(sandbox_info->sandbox_dir));
205
206 /* Generate sandbox log full path */
207 snprintf(sandbox_info->sandbox_log, SB_PATH_MAX, "%s",
208 get_sandbox_log(tmp_dir));
209
210 /* Generate sandbox debug log full path */
211 snprintf(sandbox_info->sandbox_debug_log, SB_PATH_MAX, "%s",
212 get_sandbox_debug_log(tmp_dir));
213
214 return 0;
215 }
216
217 void sandbox_cleanup()
218 {
219 int i = 0;
220 int success = 1;
221 int pids_file = -1, num_of_pids = 0;
222 int *pids_array = NULL;
223 char pid_string[SB_BUF_LEN];
224 char *sandbox_pids_file;
225
226 /* Generate sandbox pids-file path */
227 sandbox_pids_file = get_sandbox_pids_file(tmp_dir);
228
229 /* Remove this sandbox's bash pid from the global pids
230 * file if we have not already done so */
231 if (0 == cleaned_up) {
232 cleaned_up = 1;
233 success = 1;
234
235 if (print_debug)
236 printf("Cleaning up pids file.\n");
237
238 /* Stat the PIDs file, make sure it exists and is a regular file */
239 if (file_exist(sandbox_pids_file, 1) <= 0) {
240 fprintf(stderr, ">>> pids file is not a regular file\n");
241 success = 0;
242 /* We should really not fail if the pidsfile is missing here, but
243 * rather just exit cleanly, as there is still some cleanup to do */
244 return;
245 }
246
247 pids_file = file_open(sandbox_pids_file, "r+", 1, 0664, "portage");
248 if (-1 == pids_file) {
249 success = 0;
250 /* Nothing more to do here */
251 return;
252 }
253
254 /* Load "still active" pids into an array */
255 num_of_pids = load_active_pids(pids_file, &pids_array);
256 //printf("pids: %d\r\n", num_of_pids);
257
258
259 file_truncate(pids_file);
260
261 /* if pids are still running, write only the running pids back to the file */
262 if (num_of_pids > 1) {
263 for (i = 0; i < num_of_pids; i++) {
264 if (pids_array[i] != getpid()) {
265 sprintf(pid_string, "%d\n", pids_array[i]);
266
267 if (write(pids_file, pid_string, strlen(pid_string)) != strlen(pid_string)) {
268 perror(">>> pids file write");
269 success = 0;
270 break;
271 }
272 }
273 }
274
275 file_close(pids_file);
276 pids_file = -1;
277 } else {
278
279 file_close(pids_file);
280 pids_file = -1;
281
282 /* remove the pidsfile, as this was the last sandbox */
283 unlink(sandbox_pids_file);
284 }
285
286 if (pids_array != NULL)
287 free(pids_array);
288 pids_array = NULL;
289 }
290
291 free(sandbox_pids_file);
292 }
293
294 int print_sandbox_log(char *sandbox_log)
295 {
296 int sandbox_log_file = -1;
297 char *beep_count_env = NULL;
298 int i, color, beep_count = 0;
299 long len = 0;
300 char *buffer = NULL;
301
302 sandbox_log_file = file_open(sandbox_log, "r", 1, 0664, "portage");
303 if (-1 == sandbox_log_file)
304 return 0;
305
306 len = file_length(sandbox_log_file);
307 buffer = (char *)malloc((len + 1) * sizeof(char));
308 memset(buffer, 0, len + 1);
309 read(sandbox_log_file, buffer, len);
310 file_close(sandbox_log_file);
311
312 color = ((getenv("NOCOLOR") != NULL) ? 0 : 1);
313
314 if (color)
315 printf("\e[31;01m");
316 printf("--------------------------- ACCESS VIOLATION SUMMARY ---------------------------");
317 if (color)
318 printf("\033[0m");
319 if (color)
320 printf("\e[31;01m");
321 printf("\nLOG FILE = \"%s\"", sandbox_log);
322 if (color)
323 printf("\033[0m");
324 printf("\n\n");
325 printf("%s", buffer);
326 if (buffer)
327 free(buffer);
328 buffer = NULL;
329 printf("\e[31;01m--------------------------------------------------------------------------------\033[0m\n");
330
331 beep_count_env = getenv(ENV_SANDBOX_BEEP);
332 if (beep_count_env)
333 beep_count = atoi(beep_count_env);
334 else
335 beep_count = DEFAULT_BEEP_COUNT;
336
337 for (i = 0; i < beep_count; i++) {
338 fputc('\a', stderr);
339 if (i < beep_count - 1)
340 sleep(1);
341 }
342 return 1;
343 }
344
345 void stop(int signum)
346 {
347 if (stop_called == 0) {
348 stop_called = 1;
349 printf("Caught signal %d in pid %d\r\n", signum, getpid());
350 sandbox_cleanup();
351 } else {
352 fprintf(stderr, "Pid %d alreadly caught signal and is still cleaning up\n", getpid());
353 }
354 }
355
356 void get_sandbox_write_envvar(char *buf, struct sandbox_info_t *sandbox_info)
357 {
358 /* bzero out entire buffer then append trailing 0 */
359 memset(buf, 0, SB_BUF_LEN);
360
361 /* these could go into make.globals later on */
362 snprintf(buf, SB_BUF_LEN,
363 "%s:%s/.gconfd/lock:%s/.bash_history:%s:%s:%s:%s",
364 "/dev/zero:/dev/fd/:/dev/null:/dev/pts/:"
365 "/dev/vc/:/dev/pty:/dev/tty:/dev/console:"
366 "/dev/shm/ngpt:/var/log/scrollkeeper.log:"
367 "/usr/tmp/conftest:/usr/lib/conftest:"
368 "/usr/lib32/conftest:/usr/lib64/conftest:"
369 "/usr/tmp/cf:/usr/lib/cf:/usr/lib32/cf:/usr/lib64/cf",
370 sandbox_info->home_dir, sandbox_info->home_dir,
371 (NULL != sandbox_info->portage_tmp_dir) ? sandbox_info->portage_tmp_dir : tmp_dir,
372 sandbox_info->tmp_dir, sandbox_info->var_tmp_dir,
373 "/tmp/:/var/tmp/");
374 }
375
376 void get_sandbox_predict_envvar(char *buf, struct sandbox_info_t *sandbox_info)
377 {
378 /* bzero out entire buffer then append trailing 0 */
379 memset(buf, 0, SB_BUF_LEN);
380
381 /* these should go into make.globals later on */
382 snprintf(buf, SB_BUF_LEN, "%s/.:"
383 "/usr/lib/python2.0/:"
384 "/usr/lib/python2.1/:"
385 "/usr/lib/python2.2/:"
386 "/usr/lib/python2.3/:"
387 "/usr/lib/python2.4/:"
388 "/usr/lib/python2.5/:"
389 "/usr/lib/python3.0/:",
390 sandbox_info->home_dir);
391 }
392
393 int sandbox_setenv(char **env, char *name, char *val) {
394 char **tmp_env = env;
395 char *tmp_string = NULL;
396
397 /* XXX: We add the new variable to the end (no replacing). If this
398 * is changed, we need to fix sandbox_setup_environ() below */
399 while (NULL != *tmp_env)
400 tmp_env++;
401
402 /* strlen(name) + strlen(val) + '=' + '\0' */
403 /* FIXME: Should probably free this at some stage - more neatness than
404 * a real leak that will cause issues. */
405 tmp_string = calloc(strlen(name) + strlen(val) + 2, sizeof(char *));
406 if (NULL == tmp_string) {
407 perror(">>> out of memory (sandbox_setenv)");
408 exit(1);
409 }
410
411 snprintf(tmp_string, strlen(name) + strlen(val) + 2, "%s=%s",
412 name, val);
413 *tmp_env = tmp_string;
414
415 return 0;
416 }
417
418 /* We setup the environment child side only to prevent issues with
419 * setting LD_PRELOAD parent side */
420 char **sandbox_setup_environ(struct sandbox_info_t *sandbox_info,
421 char *sandbox_write_envvar, char *sandbox_predict_envvar)
422 {
423 int env_size = 0;
424 int have_ld_preload = 0;
425
426 char **new_environ;
427 char **env_ptr = environ;
428 char *ld_preload_envvar = NULL;
429 char *orig_ld_preload_envvar = NULL;
430
431 /* Unset these, as its easier than replacing when setting up our
432 * new environment below */
433 unsetenv(ENV_SANDBOX_DIR);
434 unsetenv(ENV_SANDBOX_LIB);
435 unsetenv(ENV_SANDBOX_BASHRC);
436 unsetenv(ENV_SANDBOX_LOG);
437 unsetenv(ENV_SANDBOX_DEBUG_LOG);
438
439 if (NULL != getenv(ENV_LD_PRELOAD)) {
440 have_ld_preload = 1;
441 orig_ld_preload_envvar = getenv(ENV_LD_PRELOAD);
442
443 /* FIXME: Should probably free this at some stage - more neatness
444 * than a real leak that will cause issues. */
445 ld_preload_envvar = calloc(strlen(orig_ld_preload_envvar) +
446 strlen(sandbox_info->sandbox_lib) + 2,
447 sizeof(char *));
448 if (NULL == ld_preload_envvar)
449 return NULL;
450 snprintf(ld_preload_envvar, strlen(orig_ld_preload_envvar) +
451 strlen(sandbox_info->sandbox_lib) + 2, "%s %s",
452 sandbox_info->sandbox_lib, orig_ld_preload_envvar);
453 } else {
454 /* FIXME: Should probably free this at some stage - more neatness
455 * than a real leak that will cause issues. */
456 ld_preload_envvar = strndup(sandbox_info->sandbox_lib,
457 strlen(sandbox_info->sandbox_lib));
458 if (NULL == ld_preload_envvar)
459 return NULL;
460 }
461 /* Do not unset this, as strange things might happen */
462 /* unsetenv(ENV_LD_PRELOAD); */
463
464 while (NULL != *env_ptr) {
465 env_size++;
466 env_ptr++;
467 }
468
469 /* FIXME: Should probably free this at some stage - more neatness than
470 * a real leak that will cause issues. */
471 new_environ = calloc((env_size + 15 + 1) * sizeof(char *), sizeof(char *));
472 if (NULL == new_environ)
473 return NULL;
474
475 /* First add our new variables to the beginning - this is due to some
476 * weirdness that I cannot remember */
477 sandbox_setenv(new_environ, ENV_SANDBOX_DIR, sandbox_info->sandbox_dir);
478 sandbox_setenv(new_environ, ENV_SANDBOX_LIB, sandbox_info->sandbox_lib);
479 sandbox_setenv(new_environ, ENV_SANDBOX_BASHRC, sandbox_info->sandbox_rc);
480 sandbox_setenv(new_environ, ENV_SANDBOX_LOG, sandbox_info->sandbox_log);
481 sandbox_setenv(new_environ, ENV_SANDBOX_DEBUG_LOG,
482 sandbox_info->sandbox_debug_log);
483 /* If LD_PRELOAD was not set, set it here, else do it below */
484 if (1 != have_ld_preload)
485 sandbox_setenv(new_environ, ENV_LD_PRELOAD, ld_preload_envvar);
486
487 if (!getenv(ENV_SANDBOX_DENY))
488 sandbox_setenv(new_environ, ENV_SANDBOX_DENY, LD_PRELOAD_FILE);
489
490 if (!getenv(ENV_SANDBOX_READ))
491 sandbox_setenv(new_environ, ENV_SANDBOX_READ, "/");
492
493 if (!getenv(ENV_SANDBOX_WRITE))
494 sandbox_setenv(new_environ, ENV_SANDBOX_WRITE, sandbox_write_envvar);
495
496 if (!getenv(ENV_SANDBOX_PREDICT))
497 sandbox_setenv(new_environ, ENV_SANDBOX_PREDICT, sandbox_predict_envvar);
498
499 /* This one should NEVER be set in ebuilds, as it is the one
500 * private thing libsandbox.so use to test if the sandbox
501 * should be active for this pid, or not.
502 *
503 * azarah (3 Aug 2002)
504 */
505
506 sandbox_setenv(new_environ, "SANDBOX_ACTIVE", "armedandready");
507
508 env_size = 0;
509 while (NULL != new_environ[env_size])
510 env_size++;
511
512 /* Now add the rest */
513 env_ptr = environ;
514 while (NULL != *env_ptr) {
515 if ((1 == have_ld_preload) &&
516 (strstr(*env_ptr, LD_PRELOAD_EQ) == *env_ptr))
517 /* If LD_PRELOAD was set, and this is it in the original
518 * environment, replace it with our new copy */
519 /* XXX: The following works as it just add whatever as
520 * the last variable to nev_environ */
521 sandbox_setenv(new_environ, ENV_LD_PRELOAD,
522 ld_preload_envvar);
523 else
524 new_environ[env_size + (env_ptr - environ)] = *env_ptr;
525 env_ptr++;
526 }
527
528 return new_environ;
529 }
530
531 int spawn_shell(char *argv_bash[], char *env[])
532 {
533 int pid;
534 int status = 0;
535 int ret = 0;
536
537 pid = fork();
538
539 /* Child's process */
540 if (0 == pid) {
541 execve(argv_bash[0], argv_bash, env);
542 return 0;
543 } else if (pid < 0) {
544 return 0;
545 }
546 ret = waitpid(pid, &status, 0);
547 if ((-1 == ret) || (status > 0))
548 return 0;
549
550 return 1;
551 }
552
553 int main(int argc, char **argv)
554 {
555 int i = 0, success = 1;
556 int sandbox_log_presence = 0;
557 long len;
558
559 struct sandbox_info_t sandbox_info;
560
561 char **sandbox_environ;
562 char sandbox_write_envvar[SB_BUF_LEN];
563 char sandbox_predict_envvar[SB_BUF_LEN];
564 char **argv_bash = NULL;
565
566 char *run_str = "-c";
567 char *home_dir = NULL;
568 char *tmp_string = NULL;
569
570 /* Only print info if called with no arguments .... */
571 if (argc < 2)
572 print_debug = 1;
573
574 if (print_debug)
575 printf("========================== Gentoo linux path sandbox ===========================\n");
576
577 /* check if a sandbox is already running */
578 if (NULL != getenv(ENV_SANDBOX_ON)) {
579 fprintf(stderr, "Not launching a new sandbox instance\n");
580 fprintf(stderr, "Another one is already running in this process hierarchy.\n");
581 exit(1);
582 } else {
583
584 /* determine the location of all the sandbox support files */
585 if (print_debug)
586 printf("Detection of the support files.\n");
587
588 if (-1 == sandbox_setup(argv, &sandbox_info)) {
589 perror(">>> setup");
590 exit(1);
591 }
592
593 /* verify the existance of required files */
594 if (print_debug)
595 printf("Verification of the required files.\n");
596
597 #ifndef SB_HAVE_64BIT_ARCH
598 if (file_exist(sandbox_info.sandbox_lib, 0) <= 0) {
599 fprintf(stderr, "Could not open the sandbox library at '%s'.\n",
600 sandbox_info.sandbox_lib);
601 return -1;
602 }
603 #endif
604 if (file_exist(sandbox_info.sandbox_rc, 0) <= 0) {
605 fprintf(stderr, "Could not open the sandbox rc file at '%s'.\n",
606 sandbox_info.sandbox_rc);
607 return -1;
608 }
609
610 /* set up the required environment variables */
611 if (print_debug)
612 printf("Setting up the required environment variables.\n");
613
614 /* This one should not be child only, as we check above to see
615 * if we are already running (check sandbox_setup_environ).
616 * This needs to be set before calling sandbox_setup_environ(),
617 * else its not set for the child */
618 setenv(ENV_SANDBOX_ON, "1", 0);
619
620 /* Setup the child environment stuff */
621 get_sandbox_write_envvar(sandbox_write_envvar, &sandbox_info);
622 get_sandbox_predict_envvar(sandbox_predict_envvar, &sandbox_info);
623 sandbox_environ = sandbox_setup_environ(&sandbox_info,
624 sandbox_write_envvar, sandbox_predict_envvar);
625 if (NULL == sandbox_environ) {
626 perror(">>> out of memory (environ)");
627 exit(1);
628 }
629
630 /* if the portage temp dir was present, cd into it */
631 if (NULL != sandbox_info.portage_tmp_dir)
632 chdir(sandbox_info.portage_tmp_dir);
633
634 argv_bash = (char **)malloc(6 * sizeof(char *));
635 argv_bash[0] = strdup("/bin/bash");
636 argv_bash[1] = strdup("-rcfile");
637 argv_bash[2] = strdup(sandbox_info.sandbox_rc);
638
639 if (argc < 2)
640 argv_bash[3] = NULL;
641 else
642 argv_bash[3] = strdup(run_str); /* "-c" */
643
644 argv_bash[4] = NULL; /* strdup(run_arg); */
645 argv_bash[5] = NULL;
646
647 if (argc >= 2) {
648 for (i = 1; i < argc; i++) {
649 if (NULL == argv_bash[4])
650 len = 0;
651 else
652 len = strlen(argv_bash[4]);
653
654 argv_bash[4] = (char *)realloc(argv_bash[4],
655 (len + strlen(argv[i]) + 2) * sizeof(char));
656
657 if (0 == len)
658 argv_bash[4][0] = 0;
659 if (1 != i)
660 strcat(argv_bash[4], " ");
661
662 strcat(argv_bash[4], argv[i]);
663 }
664 }
665
666 /* set up the required signal handlers */
667 signal(SIGHUP, &stop);
668 signal(SIGINT, &stop);
669 signal(SIGQUIT, &stop);
670 signal(SIGTERM, &stop);
671
672 /* Load our PID into PIDs file */
673 if (-1 == write_pids_file(&sandbox_info)) {
674 perror(">>> pids file write");
675 exit(1);
676 }
677
678 /* STARTING PROTECTED ENVIRONMENT */
679 if (print_debug) {
680 printf("The protected environment has been started.\n");
681 printf("--------------------------------------------------------------------------------\n");
682 }
683
684 if (print_debug)
685 printf("Shell being started in forked process.\n");
686
687 /* Start Bash */
688 if (!spawn_shell(argv_bash, sandbox_environ)) {
689 if (print_debug)
690 fprintf(stderr, ">>> shell process failed to spawn\n");
691 success = 0;
692 }
693
694 /* Free bash stuff */
695 for (i = 0; i < 6; i++) {
696 if (argv_bash[i])
697 free(argv_bash[i]);
698 argv_bash[i] = NULL;
699 }
700 if (argv_bash)
701 free(argv_bash);
702 argv_bash = NULL;
703
704 if (print_debug)
705 printf("Cleaning up sandbox process\n");
706
707 sandbox_cleanup();
708
709 if (print_debug) {
710 printf("========================== Gentoo linux path sandbox ===========================\n");
711 printf("The protected environment has been shut down.\n");
712 }
713
714 if (file_exist(sandbox_info.sandbox_log, 0)) {
715 sandbox_log_presence = 1;
716 success = 1;
717 if (!print_sandbox_log(sandbox_info.sandbox_log))
718 success = 0;
719 } else if (print_debug) {
720 printf("--------------------------------------------------------------------------------\n");
721 }
722
723 free(sandbox_info.sandbox_pids_file);
724
725 if ((sandbox_log_presence) || (!success))
726 return 1;
727 else
728 return 0;
729 }
730 }
731
732 // vim:noexpandtab noai:cindent ai

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