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-rw-r--r--src/sandbox-1.1/sandbox_futils.c513
1 files changed, 0 insertions, 513 deletions
diff --git a/src/sandbox-1.1/sandbox_futils.c b/src/sandbox-1.1/sandbox_futils.c
deleted file mode 100644
index 2f104d936..000000000
--- a/src/sandbox-1.1/sandbox_futils.c
+++ /dev/null
@@ -1,513 +0,0 @@
-/*
- * Copyright (C) 2002 Brad House <brad@mainstreetsoftworks.com>
- * Distributed under the terms of the GNU General Public License, v2 or later
- * Author: Brad House <brad@mainstreetsoftworks.com>
- *
- * $Id: /var/cvsroot/gentoo-src/portage/src/sandbox-1.1/Attic/sandbox_futils.c,v 1.11.2.1 2004/11/03 13:12:55 ferringb Exp $
- *
- */
-
-#include <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <limits.h>
-#include <string.h>
-#include <stdarg.h>
-#include <sys/file.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/resource.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-#include <grp.h>
-#include <pwd.h>
-
-#include "sandbox.h"
-
-/* BEGIN Prototypes */
-int file_security_check(char *filename);
-/* END Prototypes */
-
-
-/* glibc modified getcwd() functions */
-char *egetcwd(char *, size_t);
-
-char *
-get_sandbox_path(char *argv0)
-{
- char path[255];
- char *cwd = NULL;
-
- memset(path, 0, sizeof(path));
- /* ARGV[0] specifies full path */
- if (argv0[0] == '/') {
- strncpy(path, argv0, sizeof(path)-1);
-
- /* ARGV[0] specifies relative path */
- } else {
- egetcwd(cwd, sizeof(path)-2);
- snprintf(path, sizeof(path), "%s/%s", cwd, argv0);
- if (cwd)
- free(cwd);
- cwd = NULL;
- }
-
- /* Return just directory */
- return (sb_dirname(path));
-}
-
-char *
-get_sandbox_lib(char *sb_path)
-{
- char path[255];
-
-#ifdef SB_HAVE_64BIT_ARCH
- snprintf(path, sizeof(path), "%s", LIB_NAME);
-#else
- snprintf(path, sizeof(path), "/lib/%s", LIB_NAME);
- if (file_exist(path, 0) <= 0) {
- snprintf(path, sizeof(path), "%s%s", sb_path, LIB_NAME);
- }
-#endif
- return (strdup(path));
-}
-
-char *
-get_sandbox_pids_file(void)
-{
- if (0 < getenv("SANDBOX_PIDS_FILE")) {
- return (strdup(getenv("SANDBOX_PIDS_FILE")));
- }
- return (strdup(PIDS_FILE));
-}
-
-char *
-get_sandbox_rc(char *sb_path)
-{
- char path[255];
-
- snprintf(path, sizeof(path), "/usr/lib/portage/lib/%s", BASHRC_NAME);
- if (file_exist(path, 0) <= 0) {
- snprintf(path, sizeof(path), "%s%s", sb_path, BASHRC_NAME);
- }
- return (strdup(path));
-}
-
-char *
-get_sandbox_log()
-{
- char path[255];
- char *sandbox_log_env = NULL;
-
- /* THIS CHUNK BREAK THINGS BY DOING THIS:
- * SANDBOX_LOG=/tmp/sandbox-app-admin/superadduser-1.0.7-11063.log
- */
-
- sandbox_log_env = getenv(ENV_SANDBOX_LOG);
- snprintf(path, sizeof(path)-1, "%s%s%s%d%s", LOG_FILE_PREFIX,
- ( sandbox_log_env == NULL ? "" : sandbox_log_env ),
- ( sandbox_log_env == NULL ? "" : "-" ),
- getpid(), LOG_FILE_EXT);
- return (strdup(path));
-}
-
-/* Obtain base directory name. Do not allow trailing / */
-char *
-sb_dirname(const char *path)
-{
- char *ret = NULL;
- char *ptr = NULL;
- int loc = 0, i;
- int cut_len = -1;
-
- /* don't think NULL will ever be passed, but just in case */
- if (NULL == path)
- return (strdup("."));
-
- /* Grab pointer to last slash */
- ptr = strrchr(path, '/');
- if (NULL == ptr) {
- return (strdup("."));
- }
-
- /* decimal location of pointer */
- loc = ptr - path;
-
- /* Remove any trailing slash */
- for (i = loc - 1; i >= 0; i--) {
- if (path[i] != '/') {
- cut_len = i + 1; /* make cut_len the length of the string to keep */
- break;
- }
- }
-
- /* It could have been just a plain /, return a 1byte 0 filled string */
- if (-1 == cut_len)
- return (strdup(""));
-
- /* Allocate memory, and return the directory */
- ret = (char *) malloc((cut_len + 1) * sizeof (char));
- memcpy(ret, path, cut_len);
- ret[cut_len] = 0;
-
- return (ret);
-}
-
-/*
-char* dirname(const char* path)
-{
- char* base = NULL;
- unsigned int length = 0;
-
- base = strrchr(path, '/');
- if (NULL == base)
- {
- return strdup(".");
- }
- while (base > path && *base == '/')
- {
- base--;
- }
- length = (unsigned int) 1 + base - path;
-
- base = malloc(sizeof(char)*(length+1));
- memmove(base, path, length);
- base[length] = 0;
-
- return base;
-}*/
-
-/* Convert text (string) modes to integer values */
-int
-file_getmode(char *mode)
-{
- int mde = 0;
- if (0 == strcasecmp(mode, "r+")) {
- mde = O_RDWR | O_CREAT;
- } else if (0 == strcasecmp(mode, "w+")) {
- mde = O_RDWR | O_CREAT | O_TRUNC;
- } else if (0 == strcasecmp(mode, "a+")) {
- mde = O_RDWR | O_CREAT | O_APPEND;
- } else if (0 == strcasecmp(mode, "r")) {
- mde = O_RDONLY;
- } else if (0 == strcasecmp(mode, "w")) {
- mde = O_WRONLY | O_CREAT | O_TRUNC;
- } else if (0 == strcasecmp(mode, "a")) {
- mde = O_WRONLY | O_APPEND | O_CREAT;
- } else {
- mde = O_RDONLY;
- }
- return (mde);
-}
-
-/* Get current position in file */
-long
-file_tell(int fp)
-{
- return (lseek(fp, 0L, SEEK_CUR));
-}
-
-/* lock the file, preferrably the POSIX way */
-int
-file_lock(int fd, int lock, char *filename)
-{
- int err;
-#ifdef USE_FLOCK
- if (flock(fd, lock) < 0) {
- err = errno;
- fprintf(stderr, ">>> %s flock file lock: %s\n", filename, strerror(err));
- return 0;
- }
-#else
- struct flock fl;
- fl.l_type = lock;
- fl.l_whence = SEEK_SET;
- fl.l_start = 0L;
- fl.l_len = 0L;
- fl.l_pid = getpid();
- if (fcntl(fd, F_SETLKW, &fl) < 0) {
- err = errno;
- fprintf(stderr, ">>> %s fcntl file lock: %s\n", filename, strerror(err));
- return 0;
- }
-#endif
- return 1;
-}
-
-/* unlock the file, preferrably the POSIX way */
-int
-file_unlock(int fd)
-{
-#ifdef USE_FLOCK
- if (flock(fd, LOCK_UN) < 0) {
- perror(">>> flock file unlock");
- return 0;
- }
-#else
- struct flock fl;
- fl.l_type = F_UNLCK;
- fl.l_whence = SEEK_SET;
- fl.l_start = 0L;
- fl.l_len = 0L;
- fl.l_pid = getpid();
- if (fcntl(fd, F_SETLKW, &fl) < 0) {
- perror(">>> fcntl file unlock");
- return 0;
- }
-#endif
- return 1;
-}
-
-/* Auto-determine from how the file was opened, what kind of lock to lock
- * the file with
- */
-int
-file_locktype(char *mode)
-{
-#ifdef USE_FLOCK
- if (NULL != (strchr(mode, 'w')) || (NULL != strchr(mode, '+'))
- || (NULL != strchr(mode, 'a')))
- return (LOCK_EX);
- return (LOCK_SH);
-#else
- if (NULL != (strchr(mode, 'w')) || (NULL != strchr(mode, '+'))
- || (NULL != strchr(mode, 'a')))
- return (F_WRLCK);
- return (F_RDLCK);
-#endif
-}
-
-/* Use standard fopen style modes to open the specified file. Also auto-determines and
- * locks the file either in shared or exclusive mode depending on opening mode
- */
-int
-file_open(char *filename, char *mode, int perm_specified, ...)
-{
- int fd;
- char error[250];
- va_list ap;
- int perm;
- char *group = NULL;
- struct group *group_struct;
-
- file_security_check(filename);
-
- if (perm_specified) {
- va_start(ap, perm_specified);
- perm = va_arg(ap, int);
- group = va_arg(ap, char *);
- va_end(ap);
- }
- fd = open(filename, file_getmode(mode));
- file_security_check(filename);
- if (-1 == fd) {
- snprintf(error, sizeof(error), ">>> %s file mode: %s open", filename, mode);
- perror(error);
- return (fd);
- }
- if (perm_specified) {
- if (fchmod(fd, 0664) && (0 == getuid())) {
- snprintf(error, sizeof(error), ">>> Could not set mode: %s", filename);
- perror(error);
- }
- }
- if (NULL != group) {
- group_struct = getgrnam(group);
- if (NULL == group) {
- snprintf(error, sizeof(error), ">>> Could not get grp number: %s", group);
- perror(error);
- } else {
- if (fchown(fd, -1, group_struct->gr_gid) && (0 == getuid())) {
- snprintf(error, sizeof(error), ">>> Could not set group: %s", filename);
- perror(error);
- }
- }
- }
- /* Only lock the file if opening succeeded */
- if (-1 != fd) {
- if(file_security_check(filename) != 0) {
- /* Security violation occured between the last check and the */
- /* creation of the file. As SpanKY pointed out there is a race */
- /* condition here, so if there is a problem here we'll mesg and */
- /* bail out to avoid it until we can work and test a better fix. */
- fprintf(stderr, "\n\nSECURITY RACE CONDITION: Problem recurred after creation!\nBAILING OUT\n\n");
- exit(127);
- }
-
- if (0 == file_lock(fd, file_locktype(mode), filename)) {
- close(fd);
- return -1;
- }
- } else {
- snprintf(error, sizeof(error), ">>> %s file mode:%s open", filename, mode);
- perror(error);
- }
- return (fd);
-}
-
-/* Close and unlock file */
-void
-file_close(int fd)
-{
- if (-1 != fd) {
- file_unlock(fd);
- close(fd);
- }
-}
-
-/* Return length of file */
-long
-file_length(int fd)
-{
- long pos, len;
- pos = file_tell(fd);
- len = lseek(fd, 0L, SEEK_END);
- lseek(fd, pos, SEEK_SET);
- return (len);
-}
-
-/* Zero out file */
-int
-file_truncate(int fd)
-{
- lseek(fd, 0L, SEEK_SET);
- if (ftruncate(fd, 0) < 0) {
- perror(">>> file truncate");
- return 0;
- }
- return 1;
-}
-
-/* Check to see if a file exists Return: 1 success, 0 file not found, -1 error */
-int
-file_exist(char *filename, int checkmode)
-{
- struct stat mystat;
-
- /* Verify file exists and is regular file (not sym link) */
- if (checkmode) {
- if (-1 == lstat(filename, &mystat)) {
- /* file doesn't exist */
- if (ENOENT == errno) {
- return 0;
- } else { /* permission denied or other error */
- perror(">>> stat file");
- return -1;
- }
- }
- if (!S_ISREG(mystat.st_mode))
- return -1;
-
- /* Just plain verify the file exists */
- } else {
- if (-1 == stat(filename, &mystat)) {
- /* file does not exist */
- if (ENOENT == errno) {
- return 0;
- } else { /* permission denied or other error */
- perror(">>> stat file");
- return -1;
- }
- }
- }
-
- return 1;
-}
-
-int file_security_check(char *filename) { /* 0 == fine, >0 == problem */
- struct stat stat_buf;
- struct group *group_buf;
- struct passwd *passwd_buf;
-
- passwd_buf = getpwnam("portage");
- group_buf = getgrnam("portage");
-
- if((lstat(filename, &stat_buf) == -1) && (errno == ENOENT)) {
- /* Doesn't exist. */
- return 0;
- }
- else {
- if((stat_buf.st_nlink) > 1) { /* Security: We are handlinked... */
- if(unlink(filename)) {
- fprintf(stderr,
- "Unable to delete file in security violation (hardlinked): %s\n",
- filename);
- exit(127);
- }
- fprintf(stderr,
- "File in security violation (hardlinked): %s\n",
- filename);
- return 1;
- }
- else if(S_ISLNK(stat_buf.st_mode)) { /* Security: We are a symlink? */
- fprintf(stderr,
- "File in security violation (symlink): %s\n",
- filename);
- exit(127);
- }
- else if(0 == S_ISREG(stat_buf.st_mode)) { /* Security: special file */
- fprintf(stderr,
- "File in security violation (not regular): %s\n",
- filename);
- exit(127);
- }
- else if(stat_buf.st_mode & S_IWOTH) { /* Security: We are o+w? */
- if(unlink(filename)) {
- fprintf(stderr,
- "Unable to delete file in security violation (world write): %s\n",
- filename);
- exit(127);
- }
- fprintf(stderr,
- "File in security violation (world write): %s\n",
- filename);
- return 1;
- }
- else if(
- !((stat_buf.st_uid == 0) || (stat_buf.st_uid == getuid()) || ((passwd_buf!=NULL) && (stat_buf.st_uid == passwd_buf->pw_uid))) ||
- !((stat_buf.st_gid == 0) || (stat_buf.st_gid == getgid()) || ((group_buf !=NULL) && (stat_buf.st_gid == group_buf->gr_gid)))
- ) { /* Security: Owner/Group isn't right. */
-
- /* uid = 0 or myuid or portage */
- /* gid = 0 or mygid or portage */
-
- if(0) {
- fprintf(stderr, "--1: %d,%d,%d,%d\n--2: %d,%d,%d,%d\n",
-
- (stat_buf.st_uid == 0),
- (stat_buf.st_uid == getuid()),
- (passwd_buf!=NULL),
- (passwd_buf!=NULL)? (stat_buf.st_uid == passwd_buf->pw_uid) : -1,
-
- (stat_buf.st_gid == 0),
- (stat_buf.st_gid == getgid()),
- (group_buf !=NULL),
- (group_buf !=NULL)? (stat_buf.st_gid == group_buf->gr_gid) : -1);
- }
-
- /* manpage: "The return value may point to static area" */
- /* DO NOT ACTUALLY FREE THIS... It'll segfault. */
- /* if(passwd_buf != NULL) { free(passwd_buf); } */
- /* if(group_buf != NULL) { free(group_buf); } */
-
- if(unlink(filename)) {
- fprintf(stderr,
- "Unable to delete file in security violation (bad owner/group): %s\n",
- filename);
- exit(127);
- }
- fprintf(stderr,
- "File in security violation (bad owner/group): %s\n",
- filename);
- return 1;
- }
- } /* Stat */
- return 0;
-}
-
-// vim:expandtab noai:cindent ai
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