Beispiel #1
0
void cp(char* src_path, char* dst_path)
{
	if(path_exists(src_path) != PATH_DOES_NOT_EXIST && path_exists(src_path) != PATH_IS_DIRECTORY )
	{
		//make necessary parent directories
		rm_r(dst_path);
		mkdir_p(dst_path, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
		rm_r(dst_path);

		FILE* src = fopen(src_path, "rb");
		FILE* dst= fopen(dst_path, "wb");
		if(src != NULL && dst != NULL)
		{
			unsigned char buf[1024];
			int num_read = 1;
			while(num_read > 0)
			{
				num_read = fread(buf, 1, 1024, src);
				if(num_read > 0)
				{
					fwrite(buf, 1, num_read, dst);
				}
			}
		}
		if(src != NULL){ fclose(src); }
		if(dst != NULL){ fclose(dst); }
	}
}
Beispiel #2
0
void
rm_r(int rootfd, const char *path, uid_t uid)
{
	int dirfd;
	DIR *d;
	struct dirent  *e;
	struct stat     st;

	if (*path == '/')
		path++;

	dirfd = openat(rootfd, path, O_DIRECTORY);
	if (dirfd == -1) {
		return;
	}

	d = fdopendir(dirfd);
	while ((e = readdir(d)) != NULL) {
		if (strcmp(e->d_name, ".") == 0 || strcmp(e->d_name, "..") == 0)
			continue;

		if (fstatat(dirfd, e->d_name, &st, AT_SYMLINK_NOFOLLOW) != 0)
			continue;
		if (S_ISDIR(st.st_mode))
			rm_r(dirfd, e->d_name, uid);
		else if (S_ISLNK(st.st_mode) || st.st_uid == uid)
			unlinkat(dirfd, e->d_name, 0);
	}
	closedir(d);
	if (fstatat(rootfd, path, &st, AT_SYMLINK_NOFOLLOW) != 0)
		return;
	unlinkat(rootfd, path, S_ISDIR(st.st_mode) ? AT_REMOVEDIR : 0);
}
Beispiel #3
0
void rm_r(const string &path, boost::function<bool (const string &,
          bool)> filter)
{
    struct stat buffer;
    if (lstat(path.c_str(), &buffer)) {
        if (errno == ENOENT) {
            return;
        } else {
            SyncContext::throwError(path, errno);
        }
    }

    if (!S_ISDIR(buffer.st_mode)) {
        if (!filter(path, false) ||
                !unlink(path.c_str())) {
            return;
        } else {
            SyncContext::throwError(path, errno);
        }
    }

    ReadDir dir(path);
    BOOST_FOREACH(const string &entry, dir) {
        rm_r(path + "/" + entry, filter);
    }
Beispiel #4
0
void
rm_r(char const * dir, uid_t uid)
{
	DIR            *d = opendir(dir);

	if (d != NULL) {
		struct dirent  *e;
		struct stat     st;
		char            file[MAXPATHLEN];

		while ((e = readdir(d)) != NULL) {
			if (strcmp(e->d_name, ".") != 0 && strcmp(e->d_name, "..") != 0) {
				snprintf(file, sizeof(file), "%s/%s", dir, e->d_name);
				if (lstat(file, &st) == 0) {	/* Need symlinks, not
								 * linked file */
					if (S_ISDIR(st.st_mode))	/* Directory - recurse */
						rm_r(file, uid);
					else {
						if (S_ISLNK(st.st_mode) || st.st_uid == uid)
							remove(file);
					}
				}
			}
		}
		closedir(d);
		if (lstat(dir, &st) == 0) {
			if (S_ISLNK(st.st_mode))
				remove(dir);
			else if (st.st_uid == uid)
				rmdir(dir);
		}
	}
}
static bool rm_r(const QString &rmPath)
{
    QFileInfo fi(rmPath);
    if (!fi.exists()) {
        qDebug() << rmPath << "does not exist";
        return false;
    } else if (fi.isFile()) {
        if (!QFile::remove(rmPath)) {
            qDebug() << "can't remove file" << rmPath;
            return false;
        }
        return true;
    } else if (fi.isDir()) {
        QFileInfoList fList = QDir(rmPath).entryInfoList(QDir::AllEntries | QDir::NoDotAndDotDot);
        foreach (QFileInfo sub, fList) {
            rm_r(sub.absoluteFilePath());
        }
Beispiel #6
0
int create_dir_and_test_writable(char* dir)
{
	int success;
	FILE* test_file = NULL;
	char* test_path = dynamic_strcat(2, dir, "/tmp.gpkg.write.test.tmp");
	mkdir_p(dir, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH );
	test_file = fopen(test_path, "w");
	success = test_file == NULL ? 0 : 1;
	if(test_file != NULL)
	{ 
		fclose(test_file);
       		rm_r(test_path);
	}
	free(test_path);

	return success;
}
Beispiel #7
0
static	void
DeregisterSession(
	SessionData *data)
{
	SessionCtrl *ctrl;
ENTER_FUNC;
#if 0
	if (!getenv("WFC_KEEP_TEMPDIR")) {
		if (!rm_r(data->hdr->tempdir)) {
			Error("cannot remove session tempdir %s",data->hdr->tempdir);
		}
	}
#endif
	ctrl = NewSessionCtrl(SESSION_CONTROL_DELETE);
	ctrl->session = data;
	SessionEnqueue(ctrl);
	ctrl = (SessionCtrl*)DeQueue(ctrl->waitq);
	FreeSessionCtrl(ctrl);
	FreeSessionData(data);
LEAVE_FUNC;
}
Beispiel #8
0
int util::rm_r(int dfd, const char * path)
{
	DIR * dir;
	struct stat64 st;
	struct dirent * ent;
	int fd, copy, r = fstatat64(dfd, path, &st, AT_SYMLINK_NOFOLLOW);
	if(r < 0)
		return r;
	if(!S_ISDIR(st.st_mode))
		return unlinkat(dfd, path, 0);
	fd = openat(dfd, path, O_RDONLY);
	if(fd < 0)
		return fd;
	copy = dup(fd);
	if(copy < 0)
	{
		close(fd);
		return copy;
	}
	dir = fdopendir(copy);
	if(!dir)
	{
		close(copy);
		close(fd);
		return -1;
	}
	while((ent = readdir(dir)))
	{
		if(!strcmp(ent->d_name, ".") || !strcmp(ent->d_name, ".."))
			continue;
		r = rm_r(fd, ent->d_name);
		if(r < 0)
			break;
	}
	closedir(dir);
	close(fd);
	if(r < 0)
		return r;
	return unlinkat(dfd, path, AT_REMOVEDIR);
}
Beispiel #9
0
int
pw_user(struct userconf * cnf, int mode, struct cargs * args)
{
	int	        rc, edited = 0;
	char           *p = NULL;
	char					 *passtmp;
	struct carg    *a_name;
	struct carg    *a_uid;
	struct carg    *arg;
	struct passwd  *pwd = NULL;
	struct group   *grp;
	struct stat     st;
	char            line[_PASSWORD_LEN+1];
	FILE	       *fp;
	char *dmode_c;
	void *set = NULL;

	static struct passwd fakeuser =
	{
		NULL,
		"*",
		-1,
		-1,
		0,
		"",
		"User &",
		"/nonexistent",
		"/bin/sh",
		0
#if defined(__FreeBSD__)
		,0
#endif
	};


	/*
	 * With M_NEXT, we only need to return the
	 * next uid to stdout
	 */
	if (mode == M_NEXT)
	{
		uid_t next = pw_uidpolicy(cnf, args);
		if (getarg(args, 'q'))
			return next;
		printf("%ld:", (long)next);
		pw_group(cnf, mode, args);
		return EXIT_SUCCESS;
	}

	/*
	 * We can do all of the common legwork here
	 */

	if ((arg = getarg(args, 'b')) != NULL) {
		cnf->home = arg->val;
	}

	if ((arg = getarg(args, 'M')) != NULL) {
		dmode_c = arg->val;
		if ((set = setmode(dmode_c)) == NULL)
			errx(EX_DATAERR, "invalid directory creation mode '%s'",
			    dmode_c);
		cnf->homemode = getmode(set, _DEF_DIRMODE);
		free(set);
	}

	/*
	 * If we'll need to use it or we're updating it,
	 * then create the base home directory if necessary
	 */
	if (arg != NULL || getarg(args, 'm') != NULL) {
		int	l = strlen(cnf->home);

		if (l > 1 && cnf->home[l-1] == '/')	/* Shave off any trailing path delimiter */
			cnf->home[--l] = '\0';

		if (l < 2 || *cnf->home != '/')		/* Check for absolute path name */
			errx(EX_DATAERR, "invalid base directory for home '%s'", cnf->home);

		if (stat(cnf->home, &st) == -1) {
			char	dbuf[MAXPATHLEN];

			/*
			 * This is a kludge especially for Joerg :)
			 * If the home directory would be created in the root partition, then
			 * we really create it under /usr which is likely to have more space.
			 * But we create a symlink from cnf->home -> "/usr" -> cnf->home
			 */
			if (strchr(cnf->home+1, '/') == NULL) {
				strcpy(dbuf, "/usr");
				strncat(dbuf, cnf->home, MAXPATHLEN-5);
				if (mkdir(dbuf, _DEF_DIRMODE) != -1 || errno == EEXIST) {
					chown(dbuf, 0, 0);
					/*
					 * Skip first "/" and create symlink:
					 * /home -> usr/home
					 */
					symlink(dbuf+1, cnf->home);
				}
				/* If this falls, fall back to old method */
			}
			strlcpy(dbuf, cnf->home, sizeof(dbuf));
			p = dbuf;
			if (stat(dbuf, &st) == -1) {
				while ((p = strchr(p + 1, '/')) != NULL) {
					*p = '\0';
					if (stat(dbuf, &st) == -1) {
						if (mkdir(dbuf, _DEF_DIRMODE) == -1)
							goto direrr;
						chown(dbuf, 0, 0);
					} else if (!S_ISDIR(st.st_mode))
						errx(EX_OSFILE, "'%s' (root home parent) is not a directory", dbuf);
					*p = '/';
				}
			}
			if (stat(dbuf, &st) == -1) {
				if (mkdir(dbuf, _DEF_DIRMODE) == -1) {
				direrr:	err(EX_OSFILE, "mkdir '%s'", dbuf);
				}
				chown(dbuf, 0, 0);
			}
		} else if (!S_ISDIR(st.st_mode))
			errx(EX_OSFILE, "root home `%s' is not a directory", cnf->home);
	}

	if ((arg = getarg(args, 'e')) != NULL)
		cnf->expire_days = atoi(arg->val);

	if ((arg = getarg(args, 'y')) != NULL)
		cnf->nispasswd = arg->val;

	if ((arg = getarg(args, 'p')) != NULL && arg->val)
		cnf->password_days = atoi(arg->val);

	if ((arg = getarg(args, 'g')) != NULL) {
		if (!*(p = arg->val))	/* Handle empty group list specially */
			cnf->default_group = "";
		else {
			if ((grp = GETGRNAM(p)) == NULL) {
				if (!isdigit((unsigned char)*p) || (grp = GETGRGID((gid_t) atoi(p))) == NULL)
					errx(EX_NOUSER, "group `%s' does not exist", p);
			}
			cnf->default_group = newstr(grp->gr_name);
		}
	}
	if ((arg = getarg(args, 'L')) != NULL)
		cnf->default_class = pw_checkname((u_char *)arg->val, 0);

	if ((arg = getarg(args, 'G')) != NULL && arg->val) {
		int i = 0;

		for (p = strtok(arg->val, ", \t"); p != NULL; p = strtok(NULL, ", \t")) {
			if ((grp = GETGRNAM(p)) == NULL) {
				if (!isdigit((unsigned char)*p) || (grp = GETGRGID((gid_t) atoi(p))) == NULL)
					errx(EX_NOUSER, "group `%s' does not exist", p);
			}
			if (extendarray(&cnf->groups, &cnf->numgroups, i + 2) != -1)
				cnf->groups[i++] = newstr(grp->gr_name);
		}
		while (i < cnf->numgroups)
			cnf->groups[i++] = NULL;
	}

	if ((arg = getarg(args, 'k')) != NULL) {
		if (stat(cnf->dotdir = arg->val, &st) == -1 || !S_ISDIR(st.st_mode))
			errx(EX_OSFILE, "skeleton `%s' is not a directory or does not exist", cnf->dotdir);
	}

	if ((arg = getarg(args, 's')) != NULL)
		cnf->shell_default = arg->val;

	if ((arg = getarg(args, 'w')) != NULL)
		cnf->default_password = boolean_val(arg->val, cnf->default_password);
	if (mode == M_ADD && getarg(args, 'D')) {
		if (getarg(args, 'n') != NULL)
			errx(EX_DATAERR, "can't combine `-D' with `-n name'");
		if ((arg = getarg(args, 'u')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) {
			if ((cnf->min_uid = (uid_t) atoi(p)) == 0)
				cnf->min_uid = 1000;
			if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_uid = (uid_t) atoi(p)) < cnf->min_uid)
				cnf->max_uid = 32000;
		}
		if ((arg = getarg(args, 'i')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) {
			if ((cnf->min_gid = (gid_t) atoi(p)) == 0)
				cnf->min_gid = 1000;
			if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_gid = (gid_t) atoi(p)) < cnf->min_gid)
				cnf->max_gid = 32000;
		}

		arg = getarg(args, 'C');
		if (write_userconfig(arg ? arg->val : NULL))
			return EXIT_SUCCESS;
		warn("config update");
		return EX_IOERR;
	}

	if (mode == M_PRINT && getarg(args, 'a')) {
		int             pretty = getarg(args, 'P') != NULL;
		int		v7 = getarg(args, '7') != NULL;
		SETPWENT();
		while ((pwd = GETPWENT()) != NULL)
			print_user(pwd, pretty, v7);
		ENDPWENT();
		return EXIT_SUCCESS;
	}

	if ((a_name = getarg(args, 'n')) != NULL)
		pwd = GETPWNAM(pw_checkname((u_char *)a_name->val, 0));
	a_uid = getarg(args, 'u');

	if (a_uid == NULL) {
		if (a_name == NULL)
			errx(EX_DATAERR, "user name or id required");

		/*
		 * Determine whether 'n' switch is name or uid - we don't
		 * really don't really care which we have, but we need to
		 * know.
		 */
		if (mode != M_ADD && pwd == NULL
		    && strspn(a_name->val, "0123456789") == strlen(a_name->val)
		    && *a_name->val) {
			(a_uid = a_name)->ch = 'u';
			a_name = NULL;
		}
	}

	/*
	 * Update, delete & print require that the user exists
	 */
	if (mode == M_UPDATE || mode == M_DELETE ||
	    mode == M_PRINT  || mode == M_LOCK   || mode == M_UNLOCK) {

		if (a_name == NULL && pwd == NULL)	/* Try harder */
			pwd = GETPWUID(atoi(a_uid->val));

		if (pwd == NULL) {
			if (mode == M_PRINT && getarg(args, 'F')) {
				fakeuser.pw_name = a_name ? a_name->val : "nouser";
				fakeuser.pw_uid = a_uid ? (uid_t) atol(a_uid->val) : -1;
				return print_user(&fakeuser,
						  getarg(args, 'P') != NULL,
						  getarg(args, '7') != NULL);
			}
			if (a_name == NULL)
				errx(EX_NOUSER, "no such uid `%s'", a_uid->val);
			errx(EX_NOUSER, "no such user `%s'", a_name->val);
		}

		if (a_name == NULL)	/* May be needed later */
			a_name = addarg(args, 'n', newstr(pwd->pw_name));

		/*
		 * The M_LOCK and M_UNLOCK functions simply add or remove
		 * a "*LOCKED*" prefix from in front of the password to
		 * prevent it decoding correctly, and therefore prevents
		 * access. Of course, this only prevents access via
		 * password authentication (not ssh, kerberos or any
		 * other method that does not use the UNIX password) but
		 * that is a known limitation.
		 */

		if (mode == M_LOCK) {
			if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str)-1) == 0)
				errx(EX_DATAERR, "user '%s' is already locked", pwd->pw_name);
			passtmp = malloc(strlen(pwd->pw_passwd) + sizeof(locked_str));
			if (passtmp == NULL)	/* disaster */
				errx(EX_UNAVAILABLE, "out of memory");
			strcpy(passtmp, locked_str);
			strcat(passtmp, pwd->pw_passwd);
			pwd->pw_passwd = passtmp;
			edited = 1;
		} else if (mode == M_UNLOCK) {
			if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str)-1) != 0)
				errx(EX_DATAERR, "user '%s' is not locked", pwd->pw_name);
			pwd->pw_passwd += sizeof(locked_str)-1;
			edited = 1;
		} else if (mode == M_DELETE) {
			/*
			 * Handle deletions now
			 */
			char            file[MAXPATHLEN];
			char            home[MAXPATHLEN];
			uid_t           uid = pwd->pw_uid;
			struct group    *gr;
			char            grname[LOGNAMESIZE];

			if (strcmp(pwd->pw_name, "root") == 0)
				errx(EX_DATAERR, "cannot remove user 'root'");

			if (!PWALTDIR()) {
				/*
				 * Remove opie record from /etc/opiekeys
		        	 */

				rmopie(pwd->pw_name);

				/*
				 * Remove crontabs
				 */
				snprintf(file, sizeof(file), "/var/cron/tabs/%s", pwd->pw_name);
				if (access(file, F_OK) == 0) {
					sprintf(file, "crontab -u %s -r", pwd->pw_name);
					system(file);
				}
			}
			/*
			 * Save these for later, since contents of pwd may be
			 * invalidated by deletion
			 */
			sprintf(file, "%s/%s", _PATH_MAILDIR, pwd->pw_name);
			strlcpy(home, pwd->pw_dir, sizeof(home));
			gr = GETGRGID(pwd->pw_gid);
			if (gr != NULL)
				strlcpy(grname, gr->gr_name, LOGNAMESIZE);
			else
				grname[0] = '\0';

			rc = delpwent(pwd);
			if (rc == -1)
				err(EX_IOERR, "user '%s' does not exist", pwd->pw_name);
			else if (rc != 0) {
				warn("passwd update");
				return EX_IOERR;
			}

			if (cnf->nispasswd && *cnf->nispasswd=='/') {
				rc = delnispwent(cnf->nispasswd, a_name->val);
				if (rc == -1)
					warnx("WARNING: user '%s' does not exist in NIS passwd", pwd->pw_name);
				else if (rc != 0)
					warn("WARNING: NIS passwd update");
				/* non-fatal */
			}

			grp = GETGRNAM(a_name->val);
			if (grp != NULL &&
			    (grp->gr_mem == NULL || *grp->gr_mem == NULL) &&
			    strcmp(a_name->val, grname) == 0)
				delgrent(GETGRNAM(a_name->val));
			SETGRENT();
			while ((grp = GETGRENT()) != NULL) {
				int i, j;
				char group[MAXLOGNAME];
				if (grp->gr_mem != NULL) {
					for (i = 0; grp->gr_mem[i] != NULL; i++) {
						if (!strcmp(grp->gr_mem[i], a_name->val)) {
							for (j = i; grp->gr_mem[j] != NULL; j++)
								grp->gr_mem[j] = grp->gr_mem[j+1];
							strlcpy(group, grp->gr_name, MAXLOGNAME);
							chggrent(group, grp);
						}
					}
				}
			}
			ENDGRENT();

			pw_log(cnf, mode, W_USER, "%s(%ld) account removed", a_name->val, (long) uid);

			if (!PWALTDIR()) {
				/*
				 * Remove mail file
				 */
				remove(file);

				/*
				 * Remove at jobs
				 */
				if (getpwuid(uid) == NULL)
					rmat(uid);

				/*
				 * Remove home directory and contents
				 */
				if (getarg(args, 'r') != NULL && *home == '/' && getpwuid(uid) == NULL) {
					if (stat(home, &st) != -1) {
						rm_r(home, uid);
						pw_log(cnf, mode, W_USER, "%s(%ld) home '%s' %sremoved",
						       a_name->val, (long) uid, home,
						       stat(home, &st) == -1 ? "" : "not completely ");
					}
				}
			}
			return EXIT_SUCCESS;
		} else if (mode == M_PRINT)
			return print_user(pwd,
					  getarg(args, 'P') != NULL,
					  getarg(args, '7') != NULL);

		/*
		 * The rest is edit code
		 */
		if ((arg = getarg(args, 'l')) != NULL) {
			if (strcmp(pwd->pw_name, "root") == 0)
				errx(EX_DATAERR, "can't rename `root' account");
			pwd->pw_name = pw_checkname((u_char *)arg->val, 0);
			edited = 1;
		}

		if ((arg = getarg(args, 'u')) != NULL && isdigit((unsigned char)*arg->val)) {
			pwd->pw_uid = (uid_t) atol(arg->val);
			edited = 1;
			if (pwd->pw_uid != 0 && strcmp(pwd->pw_name, "root") == 0)
				errx(EX_DATAERR, "can't change uid of `root' account");
			if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0)
				warnx("WARNING: account `%s' will have a uid of 0 (superuser access!)", pwd->pw_name);
		}

		if ((arg = getarg(args, 'g')) != NULL && pwd->pw_uid != 0) {	/* Already checked this */
			gid_t newgid = (gid_t) GETGRNAM(cnf->default_group)->gr_gid;
			if (newgid != pwd->pw_gid) {
				edited = 1;
				pwd->pw_gid = newgid;
			}
		}

		if ((arg = getarg(args, 'p')) != NULL) {
			if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) {
				if (pwd->pw_change != 0) {
					pwd->pw_change = 0;
					edited = 1;
				}
			}
			else {
				time_t          now = time(NULL);
				time_t          expire = parse_date(now, arg->val);

				if (pwd->pw_change != expire) {
					pwd->pw_change = expire;
					edited = 1;
				}
			}
		}

		if ((arg = getarg(args, 'e')) != NULL) {
			if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) {
				if (pwd->pw_expire != 0) {
					pwd->pw_expire = 0;
					edited = 1;
				}
			}
			else {
				time_t          now = time(NULL);
				time_t          expire = parse_date(now, arg->val);

				if (pwd->pw_expire != expire) {
					pwd->pw_expire = expire;
					edited = 1;
				}
			}
		}

		if ((arg = getarg(args, 's')) != NULL) {
			char *shell = shell_path(cnf->shelldir, cnf->shells, arg->val);
			if (shell == NULL)
				shell = "";
			if (strcmp(shell, pwd->pw_shell) != 0) {
				pwd->pw_shell = shell;
				edited = 1;
			}
		}

		if (getarg(args, 'L')) {
			if (cnf->default_class == NULL)
				cnf->default_class = "";
			if (strcmp(pwd->pw_class, cnf->default_class) != 0) {
				pwd->pw_class = cnf->default_class;
				edited = 1;
			}
		}

		if ((arg  = getarg(args, 'd')) != NULL) {
			if (strcmp(pwd->pw_dir, arg->val))
				edited = 1;
			if (stat(pwd->pw_dir = arg->val, &st) == -1) {
				if (getarg(args, 'm') == NULL && strcmp(pwd->pw_dir, "/nonexistent") != 0)
				  warnx("WARNING: home `%s' does not exist", pwd->pw_dir);
			} else if (!S_ISDIR(st.st_mode))
				warnx("WARNING: home `%s' is not a directory", pwd->pw_dir);
		}

		if ((arg = getarg(args, 'w')) != NULL &&
		    getarg(args, 'h') == NULL && getarg(args, 'H') == NULL) {
			login_cap_t *lc;

			lc = login_getpwclass(pwd);
			if (lc == NULL ||
			    login_setcryptfmt(lc, "sha512", NULL) == NULL)
				warn("setting crypt(3) format");
			login_close(lc);
			pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name);
			edited = 1;
		}

	} else {
		login_cap_t *lc;

		/*
		 * Add code
		 */

		if (a_name == NULL)	/* Required */
			errx(EX_DATAERR, "login name required");
		else if ((pwd = GETPWNAM(a_name->val)) != NULL)	/* Exists */
			errx(EX_DATAERR, "login name `%s' already exists", a_name->val);

		/*
		 * Now, set up defaults for a new user
		 */
		pwd = &fakeuser;
		pwd->pw_name = a_name->val;
		pwd->pw_class = cnf->default_class ? cnf->default_class : "";
		pwd->pw_uid = pw_uidpolicy(cnf, args);
		pwd->pw_gid = pw_gidpolicy(cnf, args, pwd->pw_name, (gid_t) pwd->pw_uid);
		pwd->pw_change = pw_pwdpolicy(cnf, args);
		pwd->pw_expire = pw_exppolicy(cnf, args);
		pwd->pw_dir = pw_homepolicy(cnf, args, pwd->pw_name);
		pwd->pw_shell = pw_shellpolicy(cnf, args, NULL);
		lc = login_getpwclass(pwd);
		if (lc == NULL || login_setcryptfmt(lc, "sha512", NULL) == NULL)
			warn("setting crypt(3) format");
		login_close(lc);
		pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name);
		edited = 1;

		if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0)
			warnx("WARNING: new account `%s' has a uid of 0 (superuser access!)", pwd->pw_name);
	}

	/*
	 * Shared add/edit code
	 */
	if ((arg = getarg(args, 'c')) != NULL) {
		char	*gecos = pw_checkname((u_char *)arg->val, 1);
		if (strcmp(pwd->pw_gecos, gecos) != 0) {
			pwd->pw_gecos = gecos;
			edited = 1;
		}
	}

	if ((arg = getarg(args, 'h')) != NULL ||
	    (arg = getarg(args, 'H')) != NULL) {
		if (strcmp(arg->val, "-") == 0) {
			if (!pwd->pw_passwd || *pwd->pw_passwd != '*') {
				pwd->pw_passwd = "*";	/* No access */
				edited = 1;
			}
		} else {
			int             fd = atoi(arg->val);
			int		precrypt = (arg->ch == 'H');
			int             b;
			int             istty = isatty(fd);
			struct termios  t;
			login_cap_t	*lc;

			if (istty) {
				if (tcgetattr(fd, &t) == -1)
					istty = 0;
				else {
					struct termios  n = t;

					/* Disable echo */
					n.c_lflag &= ~(ECHO);
					tcsetattr(fd, TCSANOW, &n);
					printf("%s%spassword for user %s:",
					     (mode == M_UPDATE) ? "new " : "",
					     precrypt ? "encrypted " : "",
					     pwd->pw_name);
					fflush(stdout);
				}
			}
			b = read(fd, line, sizeof(line) - 1);
			if (istty) {	/* Restore state */
				tcsetattr(fd, TCSANOW, &t);
				fputc('\n', stdout);
				fflush(stdout);
			}
			if (b < 0) {
				warn("-%c file descriptor", precrypt ? 'H' :
				    'h');
				return EX_IOERR;
			}
			line[b] = '\0';
			if ((p = strpbrk(line, "\r\n")) != NULL)
				*p = '\0';
			if (!*line)
				errx(EX_DATAERR, "empty password read on file descriptor %d", fd);
			if (precrypt) {
				if (strchr(line, ':') != NULL)
					return EX_DATAERR;
				pwd->pw_passwd = line;
			} else {
				lc = login_getpwclass(pwd);
				if (lc == NULL ||
				    login_setcryptfmt(lc, "sha512", NULL) == NULL)
					warn("setting crypt(3) format");
				login_close(lc);
				pwd->pw_passwd = pw_pwcrypt(line);
			}
			edited = 1;
		}
	}

	/*
	 * Special case: -N only displays & exits
	 */
	if (getarg(args, 'N') != NULL)
		return print_user(pwd,
				  getarg(args, 'P') != NULL,
				  getarg(args, '7') != NULL);

	if (mode == M_ADD) {
		edited = 1;	/* Always */
		rc = addpwent(pwd);
		if (rc == -1) {
			warnx("user '%s' already exists", pwd->pw_name);
			return EX_IOERR;
		} else if (rc != 0) {
			warn("passwd file update");
			return EX_IOERR;
		}
		if (cnf->nispasswd && *cnf->nispasswd=='/') {
			rc = addnispwent(cnf->nispasswd, pwd);
			if (rc == -1)
				warnx("User '%s' already exists in NIS passwd", pwd->pw_name);
			else
				warn("NIS passwd update");
			/* NOTE: we treat NIS-only update errors as non-fatal */
		}
	} else if (mode == M_UPDATE || mode == M_LOCK || mode == M_UNLOCK) {
		if (edited) {	/* Only updated this if required */
			rc = chgpwent(a_name->val, pwd);
			if (rc == -1) {
				warnx("user '%s' does not exist (NIS?)", pwd->pw_name);
				return EX_IOERR;
			} else if (rc != 0) {
				warn("passwd file update");
				return EX_IOERR;
			}
			if ( cnf->nispasswd && *cnf->nispasswd=='/') {
				rc = chgnispwent(cnf->nispasswd, a_name->val, pwd);
				if (rc == -1)
					warn("User '%s' not found in NIS passwd", pwd->pw_name);
				else
					warn("NIS passwd update");
				/* NOTE: NIS-only update errors are not fatal */
			}
		}
	}

	/*
	 * Ok, user is created or changed - now edit group file
	 */

	if (mode == M_ADD || getarg(args, 'G') != NULL) {
		int i;
		for (i = 0; cnf->groups[i] != NULL; i++) {
			grp = GETGRNAM(cnf->groups[i]);
			grp = gr_add(grp, pwd->pw_name);
			/*
			 * grp can only be NULL in 2 cases:
			 * - the new member is already a member
			 * - a problem with memory occurs
			 * in both cases we want to skip now.
			 */
			if (grp == NULL)
				continue;
			chggrent(cnf->groups[i], grp);
			free(grp);
		}
	}


	/* go get a current version of pwd */
	pwd = GETPWNAM(a_name->val);
	if (pwd == NULL) {
		/* This will fail when we rename, so special case that */
		if (mode == M_UPDATE && (arg = getarg(args, 'l')) != NULL) {
			a_name->val = arg->val;		/* update new name */
			pwd = GETPWNAM(a_name->val);	/* refetch renamed rec */
		}
	}
	if (pwd == NULL)	/* can't go on without this */
		errx(EX_NOUSER, "user '%s' disappeared during update", a_name->val);

	grp = GETGRGID(pwd->pw_gid);
	pw_log(cnf, mode, W_USER, "%s(%ld):%s(%ld):%s:%s:%s",
	       pwd->pw_name, (long) pwd->pw_uid,
	    grp ? grp->gr_name : "unknown", (long) (grp ? grp->gr_gid : -1),
	       pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell);

	/*
	 * If adding, let's touch and chown the user's mail file. This is not
	 * strictly necessary under BSD with a 0755 maildir but it also
	 * doesn't hurt anything to create the empty mailfile
	 */
	if (mode == M_ADD) {
		if (!PWALTDIR()) {
			sprintf(line, "%s/%s", _PATH_MAILDIR, pwd->pw_name);
			close(open(line, O_RDWR | O_CREAT, 0600));	/* Preserve contents &
									 * mtime */
			chown(line, pwd->pw_uid, pwd->pw_gid);
		}
	}

	/*
	 * Let's create and populate the user's home directory. Note
	 * that this also `works' for editing users if -m is used, but
	 * existing files will *not* be overwritten.
	 */
	if (!PWALTDIR() && getarg(args, 'm') != NULL && pwd->pw_dir && *pwd->pw_dir == '/' && pwd->pw_dir[1]) {
		copymkdir(pwd->pw_dir, cnf->dotdir, cnf->homemode, pwd->pw_uid, pwd->pw_gid);
		pw_log(cnf, mode, W_USER, "%s(%ld) home %s made",
		       pwd->pw_name, (long) pwd->pw_uid, pwd->pw_dir);
	}


	/*
	 * Finally, send mail to the new user as well, if we are asked to
	 */
	if (mode == M_ADD && !PWALTDIR() && cnf->newmail && *cnf->newmail && (fp = fopen(cnf->newmail, "r")) != NULL) {
		FILE           *pfp = popen(_PATH_SENDMAIL " -t", "w");
		
		if (pfp == NULL)
			warn("sendmail");
		else {
			fprintf(pfp, "From: root\n" "To: %s\n" "Subject: Welcome!\n\n", pwd->pw_name);
			while (fgets(line, sizeof(line), fp) != NULL) {
				/* Do substitutions? */
				fputs(line, pfp);
			}
			pclose(pfp);
			pw_log(cnf, mode, W_USER, "%s(%ld) new user mail sent",
			    pwd->pw_name, (long) pwd->pw_uid);
		}
		fclose(fp);
	}

	return EXIT_SUCCESS;
}
Beispiel #10
0
int rm_r(const char *path)
{
    int ret = 0;
    DIR *dir;
    struct dirent *dent;
    int r;

    if (path == NULL) {
        opkg_perror(ERROR, "Missing directory parameter");
        return -1;
    }

    dir = opendir(path);
    if (dir == NULL) {
        opkg_perror(ERROR, "Failed to open dir %s", path);
        return -1;
    }

    r = fchdir(dirfd(dir));
    if (r == -1) {
        opkg_perror(ERROR, "Failed to change to dir %s", path);
        closedir(dir);
        return -1;
    }

    while (1) {
        errno = 0;
        dent = readdir(dir);
        if (dent == NULL) {
            if (errno) {
                opkg_perror(ERROR, "Failed to read dir %s", path);
                ret = -1;
            }
            break;
        }

        if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
            continue;

#ifdef _BSD_SOURCE
        if (dent->d_type == DT_DIR) {
            ret = rm_r(dent->d_name);
            if (ret == -1)
                break;
            continue;
        } else if (dent->d_type == DT_UNKNOWN)
#endif
        {
            struct stat st;
            ret = lstat(dent->d_name, &st);
            if (ret == -1) {
                opkg_perror(ERROR, "Failed to lstat %s", dent->d_name);
                break;
            }
            if (S_ISDIR(st.st_mode)) {
                ret = rm_r(dent->d_name);
                if (ret == -1)
                    break;
                continue;
            }
        }

        ret = unlink(dent->d_name);
        if (ret == -1) {
            opkg_perror(ERROR, "Failed to unlink %s", dent->d_name);
            break;
        }
    }

    r = chdir("..");
    if (r == -1) {
        ret = -1;
        opkg_perror(ERROR, "Failed to change to dir %s/..", path);
    }

    r = rmdir(path);
    if (r == -1) {
        ret = -1;
        opkg_perror(ERROR, "Failed to remove dir %s", path);
    }

    r = closedir(dir);
    if (r == -1) {
        ret = -1;
        opkg_perror(ERROR, "Failed to close dir %s", path);
    }

    return ret;
}
Beispiel #11
0
int recursively_install(char* pkg_name, char* pkg_version, char* install_root_name, char* link_to_root, char* overlay_path, int is_upgrade, int overwrite_config, int overwrite_other_package_files, char* tmp_dir, opkg_conf* conf, string_map* package_data, string_map* install_called_pkgs)
{
	int err=0;
	
	/* variables not allocated in this function, do not need to be freed */
	string_map* install_pkg_data    = get_package_with_version(package_data, pkg_name, pkg_version);
	char* src_file_path             = get_string_map_element(install_pkg_data, "Install-File-Location");
	char* src_id                    = get_string_map_element(install_pkg_data, "Source-ID");
	char* pkg_filename              = get_string_map_element(install_pkg_data, "Filename");
	string_map* pkg_dependencies    = get_string_map_element(install_pkg_data, "Required-Depends");
	char* install_root_path         = get_string_map_element(conf->dest_names, install_root_name);
	char* link_root_path            = link_to_root != NULL && safe_strcmp(link_to_root, install_root_name) != 0 ? get_string_map_element(conf->dest_names, link_to_root) : NULL;
	char* base_url = NULL;
	
	/* variables that may need to be freed */
	char* pkg_dest = NULL;
	string_map* files_to_link = NULL;
	char* info_dir            = NULL;
	char* control_name_prefix = NULL;
	char* list_file_name      = NULL;
	string_map* conf_files    = NULL;
	string_map* copied_conf_files = NULL;

	int install_root_len = strlen(install_root_path);
	char* fs_terminated_install_root = install_root_path[install_root_len-1] == '/' ? strdup(install_root_path) : dynamic_strcat(2, install_root_path, "/");
	
	int overlay_root_len;
	char* fs_terminated_overlay_root = NULL;
	if(overlay_path != NULL)
	{
		overlay_root_len = strlen(overlay_path);
		fs_terminated_overlay_root = overlay_path[overlay_root_len-1] == '/' ? strdup(overlay_path) : dynamic_strcat(2, overlay_path, "/");
	}
	else
	{
		fs_terminated_overlay_root = strdup(fs_terminated_install_root);
	}

	int link_root_len;
	char* fs_terminated_link_root = NULL;
	if(link_root_path != NULL)
	{
		link_root_len = strlen(link_root_path);
		fs_terminated_link_root = link_root_path[link_root_len-1] == '/' ? strdup(link_root_path) : dynamic_strcat(2, link_root_path, "/");
	}
	set_string_map_element(install_called_pkgs, pkg_name, strdup("D"));



	if(pkg_dependencies != NULL)
	{
		//recurse
		unsigned long num_deps;
		char** deps = get_string_map_keys(pkg_dependencies, &num_deps);
		int dep_index;
		for(dep_index=0; err == 0 && dep_index < num_deps ; dep_index++)
		{
			if(get_string_map_element(install_called_pkgs, deps[dep_index]) == NULL )
			{
				char** dep_def = get_string_map_element(pkg_dependencies, deps[dep_index]);
				int is_current;
				char* matching_version;
				string_map* dep_pkg = get_package_current_or_latest_matching(package_data, deps[dep_index], dep_def, &is_current, &matching_version);

				if(dep_pkg != NULL)
				{
					char* dep_status = get_string_map_element(dep_pkg, "Status");
					if(strstr(dep_status, " half-installed") != NULL)
					{
						err = recursively_install(deps[dep_index], matching_version, install_root_name, link_to_root, overlay_path, is_upgrade, overwrite_config, overwrite_other_package_files, tmp_dir, conf, package_data, install_called_pkgs);
						
					}
				}
				else
				{
					err = 1;
				}
			}
		}
	}
	
	if(install_root_path == NULL || ( src_id == NULL && install_pkg_data == NULL) || (pkg_filename == NULL && install_pkg_data == NULL) )
	{
		//sanity check
		err = 1;
	}
	if(err == 0)
	{
		printf("Preparing to install package %s...\n", pkg_name);
	}
	if(err == 0 && src_file_path == NULL)
	{
		//determine source url
		string_map* src_lists[2] = { conf->gzip_sources, conf->plain_sources };
		int src_list_index;
		for(src_list_index=0; src_list_index < 2 && base_url == NULL; src_list_index++)
		{
			base_url = (char*)get_string_map_element(src_lists[src_list_index], src_id);
		}
		err = base_url == NULL ? 1 : err;
		if(err == 1)
		{
			fprintf(stderr, "ERROR: Could determine download  URL for package %s\n", pkg_name);
		}
	}
	if(err == 0 && src_file_path == NULL)
	{
		
		//download package
		printf("\tDownloading...\n");
		char* src_url  = dynamic_strcat(3, base_url, "/", pkg_filename);
		pkg_dest = dynamic_strcat(3, tmp_dir, "/", pkg_name);
		FILE* package_file = fopen(pkg_dest, "w");
		if(package_file != NULL)
		{
			err = write_url_to_stream(src_url, "gpkg", NULL, package_file, NULL);
			fclose(package_file);
		}
		else
		{
			err = 1;
		}
		if(err == 1)
		{
			fprintf(stderr, "ERROR: Could not download package %s\n", pkg_name);
		}
		free(src_url);
	}
	if(err == 0 && src_file_path != NULL)
	{
		pkg_dest = strdup(src_file_path);
	}
	if(err == 0 && src_file_path == NULL)
	{
		//check md5sum
		char* md5sum = file_md5sum_alloc(pkg_dest);
		char* expected_md5sum = (char*)get_string_map_element(install_pkg_data, "MD5Sum");
		
		//printf("md5sum         = %s\n", md5sum);
		//printf("package md5sum = %s\n", (char*)get_string_map_element(install_pkg_data, "MD5Sum"));

		if(md5sum == NULL || expected_md5sum == NULL)
		{
			fprintf(stderr, "ERROR: Expected MD5Sum for %s not specified, cannot verify package\n", pkg_name);
			err = 1;
		}
		else if (safe_strcmp(md5sum, expected_md5sum) != 0)
		{
			fprintf(stderr, "ERROR: MD5Sum mismatch for %s package\n", pkg_name);
			fprintf(stderr, "       Expected:   %s\n", expected_md5sum);
			fprintf(stderr, "       Downloaded: %s\n\n", md5sum);
			err = 1;
		}
		else
		{
			printf("\tDownloaded %s successfully.\n\tInstalling %s...\n", pkg_name, pkg_name);
		}
		
		if(md5sum != NULL) { free(md5sum); }
		
	}
	if(err == 0)
	{
		// Extract list file contaiing list of files to install
		info_dir            = dynamic_strcat(2, fs_terminated_overlay_root, "usr/lib/opkg/info");
		control_name_prefix = dynamic_strcat(4, info_dir, "/", pkg_name, ".");
		list_file_name      = dynamic_strcat(4, info_dir, "/", pkg_name, ".list");
		
		mkdir_p(info_dir, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH );
		FILE* list_file = fopen(list_file_name, "w");
		deb_extract(	pkg_dest,
				list_file,
				extract_quiet | extract_data_tar_gz | extract_list,
				NULL,
				NULL, 
				&err);
		fclose(list_file);
		if(err)
		{
			rm_r(list_file_name);
			fprintf(stderr, "ERROR: could not extract file list from packge %s.\n", pkg_name);
			fprintf(stderr, "       package file may be corrupt\n\n");
		}
	}
	if(err == 0)
	{
		//extract control files
		deb_extract(	pkg_dest,
				stderr,
				extract_control_tar_gz | extract_all_to_fs| extract_preserve_date | extract_unconditional,
				control_name_prefix, 
				NULL, 
				&err);
		if(err)
		{
			fprintf(stderr, "ERROR: could not extract control files from packge %s.\n", pkg_name);
			fprintf(stderr, "       package file may be corrupt\n\n");
		}

	}
	if(err == 0)
	{
		//check for file conflicts & correct list file to contain real root name in file paths
		unsigned long num_list_lines;
		char** list_file_lines = get_file_lines(list_file_name, &num_list_lines);


		char* conf_file_path = dynamic_strcat(4, info_dir, "/", pkg_name, ".conffiles");
		if(path_exists(conf_file_path))
		{
			unsigned long num_conf_lines;
			char** conf_file_lines =  get_file_lines(conf_file_path, &num_conf_lines);
			int conf_line_index;
			conf_files = initialize_string_map(1);
			for(conf_line_index=0; conf_line_index < num_conf_lines; conf_line_index++)
			{
				char* adjusted_conf_path = dynamic_strcat(2, fs_terminated_install_root, conf_file_lines[conf_line_index] + 1);
				set_string_map_element(conf_files, adjusted_conf_path, strdup("D"));
				free(adjusted_conf_path);
			}
			free_null_terminated_string_array(conf_file_lines);
		}
		free(conf_file_path);
	

		FILE* list_file = fopen(list_file_name, "w");
		int line_index;
		for(line_index=0; line_index < num_list_lines && (!err) ; line_index++)
		{
			int line_len = strlen( list_file_lines[line_index] );
			if(line_len > 2)
			{
				if(list_file_lines[line_index][0] == '.' && list_file_lines[line_index][1] == '/' && list_file_lines[line_index][line_len-1] != '/')
				{
					char* adjusted_file_path = dynamic_strcat(2, fs_terminated_install_root, list_file_lines[line_index] + 2);
					int is_conf_file = conf_files != NULL ? 
								(get_string_map_element(conf_files, adjusted_file_path) != NULL ? 1 : 0) : 
								0;
					if(strcmp(pkg_name, "opkg") == 0 && strcmp(list_file_lines[line_index], "./bin/opkg") == 0 && path_exists("/bin/opkg") == PATH_IS_SYMLINK)
					{
						//very special case: we're installing opkg, and here all the preliminary checks have already been passed
						//remove symlink placeholder to gpkg from /bin/opkg if it exists
						rm_r("/bin/opkg");
					}
					err = path_exists(adjusted_file_path) && is_conf_file == 0 && overwrite_other_package_files == 0 ? 1 : 0;
					if(err)
					{
						fprintf(stderr, "ERROR: file '%s'\n", adjusted_file_path);
						fprintf(stderr, "       from package %s already exists.\n\n", pkg_name);
					}
					else
					{
						fprintf(list_file, "%s\n", adjusted_file_path);
						if(link_root_path != NULL)
						{
							char* link_to_path = dynamic_strcat(2, fs_terminated_link_root, list_file_lines[line_index] + 2);
							files_to_link = files_to_link == NULL ? initialize_string_map(1) : files_to_link;
							set_string_map_element(files_to_link, adjusted_file_path, link_to_path);
							//don't free link_to_path, should be freed with files_to_link map
						}

						if(is_conf_file && path_exists(adjusted_file_path) && overwrite_config == 0)
						{
							char* tmp_conf_path = dynamic_strcat(2, tmp_dir, adjusted_file_path);
							
							cp(adjusted_file_path, tmp_conf_path);
							
							copied_conf_files = copied_conf_files == NULL ? initialize_string_map(1) : copied_conf_files;
							set_string_map_element(copied_conf_files, adjusted_file_path, tmp_conf_path);
						
							//don't free tmp_conf_path, should be freed with copied_conf_files map 
						}
					}
					free(adjusted_file_path);
	
				}
			}
		}
		fclose(list_file);
		if(list_file_lines != NULL) { free_null_terminated_string_array(list_file_lines); }
	}
	if(err == 0)
	{
		//run preinst
		err = run_script_if_exists(install_root_path, link_root_path, pkg_name, "preinst", (is_upgrade ? "upgrade" : "install") );
	}
	if(err == 0)
	{
		//extract package files
		deb_extract(	pkg_dest,
				stderr,
				extract_data_tar_gz | extract_all_to_fs| extract_preserve_date| extract_unconditional,
				fs_terminated_overlay_root, 
				NULL, 
				&err);
		if(err)
		{
			fprintf(stderr, "ERROR: could not extract application files from packge %s.\n", pkg_name);
			fprintf(stderr, "       package file may be corrupt\n\n");
		}

		//move any conf files back
		if(copied_conf_files != NULL)
		{
			unsigned long num_conf_paths;
			char** conf_paths = get_string_map_keys(copied_conf_files, &num_conf_paths);
			int conf_index;
			for(conf_index=0; conf_index < num_conf_paths; conf_index++)
			{
				char* tmp_conf_path = get_string_map_element(copied_conf_files, conf_paths[conf_index]);
				
				cp(tmp_conf_path, conf_paths[conf_index]);
			}
			destroy_string_map(copied_conf_files, DESTROY_MODE_FREE_VALUES, &num_conf_paths);
			if(conf_paths != NULL ) { free_null_terminated_string_array(conf_paths); }
			copied_conf_files = NULL;
		}
	}
	if(err == 0 && files_to_link != NULL)
	{
		unsigned long num_files;
		char** real_files = get_string_map_keys(files_to_link, &num_files);
		int file_index;
		if(num_files > 0)
		{
			char* link_file_name = dynamic_strcat(4, info_dir, "/", pkg_name, ".linked");
			FILE* link_file = fopen(link_file_name, "w");
			for(file_index=0; link_file != NULL && file_index < num_files; file_index++)
			{
				char* link_path = get_string_map_element(files_to_link, real_files[file_index]);
				if(!path_exists(link_path))
				{
					int sym_success;
					mkdir_p(link_path, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH );
					rm_r(link_path);
					sym_success = symlink(real_files[file_index], link_path);
					fprintf(link_file, "%s\n", link_path);
				}
			}
			if(link_file != NULL) { fclose(link_file); }
			free(link_file_name);
		}
		destroy_string_map(files_to_link, DESTROY_MODE_FREE_VALUES, &num_files);
		free_null_terminated_string_array(real_files);
		files_to_link = NULL;
	}
	if(err == 0)
	{
		//run postinst
		int warn = run_script_if_exists(install_root_path, link_root_path, pkg_name, "postinst", (is_upgrade ? "upgrade" : "install") );
		if(warn != 0)
		{
			fprintf(stderr, "Warning: postinstall script failed for package %s.\n", pkg_name);
		}
	}
	if(err == 0)
	{
		// remove downloaded package file in tmp dir & print success
		if(src_file_path == NULL) { rm_r(pkg_dest); }
		printf("\tSuccessfully installed %s.\n", pkg_name);
	}


	//cleanup
	unsigned long num_destroyed;
	free_if_not_null(pkg_dest);
	free_if_not_null(info_dir);
	free_if_not_null(control_name_prefix);
	free_if_not_null(list_file_name);
	free_if_not_null(fs_terminated_install_root);
	free_if_not_null(fs_terminated_overlay_root);
	free_if_not_null(fs_terminated_link_root);
	if(files_to_link != NULL)   { destroy_string_map(files_to_link,     DESTROY_MODE_FREE_VALUES, &num_destroyed); }
	if(conf_files != NULL)      { destroy_string_map(conf_files,        DESTROY_MODE_FREE_VALUES, &num_destroyed); }
	if(copied_conf_files!= NULL){ destroy_string_map(copied_conf_files, DESTROY_MODE_FREE_VALUES, &num_destroyed); }

	return err;
}
Beispiel #12
0
//void do_install(opkg_conf* conf, char* pkg_name, char* install_root_name, char* link_root_name, char** version_criteria)
void do_install(opkg_conf* conf, string_map* pkgs, char* install_root_name, char* link_root_name, int is_upgrade, int overwrite_config, int overwrite_other_package_files, int force_reinstall, char* tmp_root)
{
	string_map* package_data = initialize_string_map(1);
	string_map* matching_packages = initialize_string_map(1);
	string_map* pkgs_from_file = initialize_string_map(1);
	unsigned long num_destroyed;


	char* install_root_path = (char*)get_string_map_element(conf->dest_names, install_root_name);
	char* overlay_path = NULL; // no special treatment of overlay, can be reenabled  by setting this variable here if we ever need it


	char* test_dir  = dynamic_strcat(2, (overlay_path != NULL ? overlay_path : install_root_path), "/usr/lib/opkg/info");
	if(!create_dir_and_test_writable(test_dir))
	{
		fprintf(stderr, "ERROR: Specified install destination is not writable, exiting\n");
		exit(1);
	}
	free(test_dir);

	



	if(install_root_path == NULL)
	{
		printf("ERROR: No destination %s found, cannot install\n\n", install_root_name);
		exit(1);
	}
	
	char* tmp_dir = (char*)malloc(1024);
	if(create_tmp_dir(tmp_root == NULL ? "/tmp" : tmp_root, &tmp_dir) != 0)
	{
		fprintf(stderr, "ERROR: Could not create tmp dir, exiting\n");
		exit(1);
	}


	/* Determine all packages to install by first loading all package names, status & dependencies (and no other variables) */
	load_all_package_data(conf, package_data, matching_packages, NULL, LOAD_MINIMAL_PKG_VARIABLES_FOR_ALL, install_root_name, 1, NULL );
	destroy_string_map(matching_packages, DESTROY_MODE_FREE_VALUES, &num_destroyed);

		
	/* determine list of all packiages we are about to install, including dependencies */
	string_map* install_pkgs_map = initialize_string_map(1);
	char** install_pkg_list = NULL;	
	unsigned long install_pkg_list_len = 0;
	char* unsatisfied_dep_err = NULL;



	
	/* new string map var with all pkgs to install = pkgs, keys = version */
	unsigned long num_pkg_names;
	char** pkg_names = get_string_map_keys(pkgs, &num_pkg_names);
	int pkg_name_index;
	
	
	
	
	/* 
	 * Load data for any packages being installed via ipk and
	 * determine if any packages we are about to install 
	 * provide anything, and if so set package we are installing to preferred
	 */
	string_map* preferred_provides = initialize_string_map(1);
	for(pkg_name_index=0;pkg_name_index < num_pkg_names; pkg_name_index++)
	{
		char* pkg_name = pkg_names[pkg_name_index];
		char** version_criteria = get_string_map_element(pkgs, pkg_name);
		char* install_pkg_version = NULL;
		int install_pkg_is_current;

		
		/* deal with case where we're installing from file */
		if(path_exists(pkg_name))
		{
			//installing from file
			char* pkg_file = pkg_name;


			//extract control files
			int err = 0;
			char* tmp_control        = dynamic_strcat(2, tmp_dir, "/tmp_ctrl");
			char* tmp_control_prefix = dynamic_strcat(2, tmp_control, "/tmp.");
			char* tmp_control_name   = dynamic_strcat(2, tmp_control_prefix, "control");

			mkdir_p(tmp_control, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH );
			deb_extract(	pkg_file,
					stderr,
					extract_control_tar_gz | extract_all_to_fs| extract_preserve_date | extract_unconditional,
					tmp_control_prefix, 
					NULL, 
					&err);
			if(err != 0)
			{
				fprintf(stderr, "ERROR: %s is not a valid package file, cannot install\n", pkg_file);
				rm_r(tmp_dir);
				exit(1);
			}
			string_map* tmp_control_pkg_data = initialize_string_map(1);
			matching_packages = initialize_string_map(1);
		       	load_package_data(tmp_control_name, 0, tmp_control_pkg_data, matching_packages, NULL, LOAD_ALL_PKG_VARIABLES, NULL, NULL);
			unsigned long num_ctrl_names;
			char** ctrl_name_list = get_string_map_keys(tmp_control_pkg_data, &num_ctrl_names);
			destroy_string_map(matching_packages, DESTROY_MODE_FREE_VALUES, &num_destroyed);
		

			err = 1; //set back to 0 when data successfully loaded
			if(num_ctrl_names > 0)
			{
				int ctrl_name_index;
				for(ctrl_name_index=0; ctrl_name_list[ctrl_name_index] != NULL; ctrl_name_index++)
				{
					if( strcmp(ctrl_name_list[ctrl_name_index], PROVIDES_STRING) != 0)
					{
						pkg_name = strdup(ctrl_name_list[ctrl_name_index]);
					}
				}



				char* version = NULL;
				int is_current;
				string_map* pkg_info = get_package_current_or_latest(tmp_control_pkg_data, pkg_name, &is_current, &version);
				if(pkg_info != NULL)
				{
					err = 0;
					set_string_map_element(pkg_info, "Install-File-Location", strdup(pkg_file));
					set_string_map_element(pkg_info, "Version", version); //we need to save this, since we are going to set a special version to make sure data doesn't get over-written later, also no need to free version now

					char* special_version = dynamic_strcat(2, version, "@@_FILE_INSTALL_VERSION_@@");
					char** new_version_criteria = malloc(3*sizeof(char*));
					new_version_criteria[0] = strdup("=");
					new_version_criteria[1] = special_version;
					new_version_criteria[2] = NULL;
					version_criteria = new_version_criteria;
					
					string_map* all_current_versions = get_string_map_element(package_data, pkg_name);
					if(all_current_versions == NULL)
					{
						all_current_versions=initialize_string_map(1);
						set_string_map_element(package_data, pkg_name, all_current_versions);
					}
					set_string_map_element(all_current_versions, special_version, pkg_info);
					set_string_map_element(all_current_versions, LATEST_VERSION_STRING, special_version);
				
					free(pkg_names[pkg_name_index]);
					pkg_names[pkg_name_index] = strdup(pkg_name);

				
					set_string_map_element(pkgs, pkg_name, copy_null_terminated_string_array(new_version_criteria));	
					set_string_map_element(pkgs_from_file, pkg_name, strdup("D"));
				}
			}
			free_null_terminated_string_array(ctrl_name_list);
			if(err != 0)
			{
				fprintf(stderr, "ERROR: %s is not a valid package file, cannot install\n", pkg_file);
				rm_r(tmp_dir);
				exit(1);
			}

			free_if_not_null(tmp_control);
			free_if_not_null(tmp_control_prefix);
			free_if_not_null(tmp_control_name);
			rm_r(tmp_control);
		}

		/* determine if package provides anything, and set this package to preferred if so*/
		string_map* install_pkg_data = get_package_current_or_latest_matching(package_data, pkg_name, version_criteria, &install_pkg_is_current, &install_pkg_version);
		if(install_pkg_data != NULL)
		{
			char* provides_str = get_string_map_element(install_pkg_data, "Provides");
			if(provides_str != NULL)
			{
				if(strlen(provides_str) > 0)
				{
					unsigned long num_provides;
					char package_separators[] = {' ', ',', ':', ';', '\'', '\"', '\t', '\r', '\n'};
					char** provides_list = split_on_separators(provides_str, package_separators, 9, -1, 0, &num_provides);
					int provides_index;
					char* provides_unique_key = dynamic_strcat(3, pkg_name, "@", install_pkg_version);
					for(provides_index=0; provides_index < num_provides; provides_index++)
					{
						char* provides_name = strdup(provides_list[provides_index]);
						char* eq = strchr(provides_name, '=');
						if(eq != NULL) { *eq = '\0' ; }
						if(strlen(provides_name) > 0)
						{
							set_string_map_element(preferred_provides, provides_name, strdup(provides_unique_key));
						}
					}
				}
			}
		}
	
	}


	/* reload with new preferred_provides */
	free_recursive_package_vars(package_data);
	matching_packages = initialize_string_map(1);
	load_all_package_data(conf, package_data, matching_packages, NULL, LOAD_MINIMAL_PKG_VARIABLES_FOR_ALL, install_root_name, 1, preferred_provides );
	destroy_string_map(matching_packages, DESTROY_MODE_FREE_VALUES, &num_destroyed);
	
	
	/* load data and do sanity checks for packages we are about to install */
	for(pkg_name_index=0;pkg_name_index < num_pkg_names; pkg_name_index++)
	{
		char* pkg_name = pkg_names[pkg_name_index];
		char** version_criteria = get_string_map_element(pkgs, pkg_name);
		char* install_pkg_version = NULL;
		int install_pkg_is_current;

		

		load_recursive_package_data_variables(package_data, pkg_name, 1, 0, 0); // load required-depends for package of interest only 
		string_map* install_pkg_data = get_package_current_or_latest_matching(package_data, pkg_name, version_criteria, &install_pkg_is_current, &install_pkg_version);
		char* install_status = install_pkg_data == NULL ? NULL : get_string_map_element(install_pkg_data, "Status");

	
		if(install_status != NULL)
		{
			char** old_el = set_string_map_element(install_pkgs_map, pkg_name, copy_null_terminated_string_array(version_criteria) );
			if(old_el != NULL){ free_null_terminated_string_array(old_el); }

			string_map* install_pkg_depend_map = get_string_map_element(install_pkg_data, "Required-Depends");
			if(install_pkg_depend_map != NULL)
			{
				unsigned long num_keys;
				char** load_detail_pkgs = get_string_map_keys(install_pkg_depend_map, &num_keys);
				int ldp_index;
				for(ldp_index=0;ldp_index < num_keys && unsatisfied_dep_err == NULL; ldp_index++)
				{
					char* dep_name = load_detail_pkgs[ldp_index];
					char** dep_def= get_string_map_element(install_pkg_depend_map, dep_name);
					if(get_string_map_element(install_pkgs_map, dep_name) != NULL)
					{
						/* 
						 * We really should check here whether old dependency def can be reconciled with the new one, and report an error if it can't 
						 * Right now we just use the heuristic that top-level (user specified, not dependency) package defs get preference, followed
						 * by first dependency encountered.
						 *
						 * Since right now versioning features aren't really being used very much other than kernel dependencies in Gargoyle/OpenWrt
						 * I'm just leaving this comment here as a reminder that this should be addressed at some point rather than messing with it now
						 *
						 */

						dep_def = get_string_map_element(install_pkgs_map, dep_name);
					}
					else
					{
						set_string_map_element(install_pkgs_map, dep_name, copy_null_terminated_string_array(dep_def));
					}
	
					//error checking, check that dependency definition exists
					char* latest_version = NULL;
					int latest_is_current = 0;
					string_map* dep_info = get_package_current_or_latest_matching(package_data, dep_name, dep_def, &latest_is_current, &latest_version);
					
					
					//check if we have a version installed different than what is required
					int have_current;
					char* current_version = NULL;
					string_map* cur_info = get_package_current_or_latest(package_data, dep_name, &have_current, &current_version);
					if(have_current && (latest_is_current == 0 || dep_info == NULL))
					{
						//should only get here if dep_def[1] is not null (version mismatch doesn't make sense if no version is specified)
						char* cur_status = get_string_map_element(cur_info, "Status");
						if(strstr(cur_status, " hold ") != NULL)
						{
							unsatisfied_dep_err = dynamic_strcat(11, "ERROR: Dependency ", dep_name, " (", dep_def[0], " ", dep_def[1], ") of package ", pkg_name, " is installed,\n\t\tbut has incompatible version ", current_version, " and is marked as 'hold'");
						}
						else
						{
							unsatisfied_dep_err = dynamic_strcat(10, "ERROR: Dependency ", dep_name, " (", dep_def[0], " ", dep_def[1], ") of package ", pkg_name, " is installed,\n\t\tbut has incompatible version ", current_version);
						}
					}
					free_if_not_null(current_version);
					free_if_not_null(latest_version);
	
					// check that dependency definition exists
					if(unsatisfied_dep_err == NULL && dep_info == NULL)
					{
						if(dep_def[1] != NULL)
						{
							unsatisfied_dep_err = dynamic_strcat(9, "ERROR: Dependency ", dep_name, " (", dep_def[0], " ", dep_def[1], ") of package ", pkg_name, " cannot be found, try updating your package lists");
						}
						else
						{
							unsatisfied_dep_err = dynamic_strcat(5, "ERROR: Dependency ", dep_name, " of package ", pkg_name, " cannot be found, try updating your package lists");
						}
					}
									
				}
				free_null_terminated_string_array(load_detail_pkgs);
			}
	
		}
		install_status = install_pkg_data == NULL ? NULL : get_string_map_element(install_pkg_data, "Status");




		/* error checking before we start install */
		if(install_pkg_data == NULL || install_status == NULL)
		{
			fprintf(stderr, "ERROR: No package named %s found, try updating your package lists\n\n", pkg_name);
			rm_r(tmp_dir);
			exit(1);
		}
		if(strstr(install_status, " installed") != NULL)
		{
			if(force_reinstall)
			{
				fprintf(stderr, "WARNING: Package %s is already installed, forcing removal and reinstallation\n\n", pkg_name);
				free_package_data(package_data);
				string_map* rm_pkg = initialize_string_map(1);
				set_string_map_element(rm_pkg, pkg_name, alloc_depend_def(NULL));
				do_remove(conf, rm_pkg, (overwrite_config ? 0 : 1), 0, 1, 0, tmp_root);
				
				//restart install
				return do_install(conf, pkgs, install_root_name, link_root_name, is_upgrade, overwrite_config, overwrite_other_package_files, force_reinstall, tmp_root);
				
			}
			else
			{
				fprintf(stderr, "WARNING: Package %s is already installed, ignoring\n", pkg_name);
				fprintf(stderr, "         Use --force-reinstall to force reinstallation\n\n");
				char** old_el = remove_string_map_element(install_pkgs_map, pkg_name);
				if(old_el != NULL){ free_null_terminated_string_array(old_el); };
			}

		}

		if(unsatisfied_dep_err != NULL)
		{
			fprintf(stderr, "%s\n", unsatisfied_dep_err);
			rm_r(tmp_dir);
			exit(1);
		}
	}


	
	
	/* load more detailed data on packages we are about to install */
	free_recursive_package_vars(package_data); /* note: whacks install_pkg_depend_map */	
	string_map* parameters = initialize_string_map(1);
	matching_packages = initialize_string_map(1);
	set_string_map_element(parameters, "package-list", install_pkgs_map);
	
	load_all_package_data(conf, package_data, matching_packages, parameters, LOAD_MINIMAL_FOR_ALL_PKGS_ALL_FOR_MATCHING, install_root_name, 0, preferred_provides);
	
	unsigned long from_file_pkg_list_len;
	char** from_file_pkg_list = get_string_map_keys(pkgs_from_file, &from_file_pkg_list_len);
	int from_file_index;
	for(from_file_index=0; from_file_index < from_file_pkg_list_len; from_file_index++)
	{
		char* old = set_string_map_element(matching_packages, from_file_pkg_list[from_file_index], strdup("D"));
		free_if_not_null(old);
	}
	free_null_terminated_string_array(from_file_pkg_list);
	install_pkg_list = get_string_map_keys(matching_packages, &install_pkg_list_len);
	


	
	
	destroy_string_map(matching_packages, DESTROY_MODE_FREE_VALUES, &num_destroyed);
	destroy_string_map(parameters, DESTROY_MODE_IGNORE_VALUES, &num_destroyed);
	

	char* all_pkg_list_str = join_strs(", ", install_pkg_list, install_pkg_list_len, 0, 0); 
	uint64_t combined_size = 0;
	int pkg_index;


	for(pkg_index=0; pkg_index < install_pkg_list_len; pkg_index++)
	{
		char** match_criteria = get_string_map_element(install_pkgs_map, install_pkg_list[pkg_index]);
		string_map* pkg = get_package_current_or_latest_matching(package_data, install_pkg_list[pkg_index], match_criteria, NULL, NULL);
		char* next_size_str = get_string_map_element(pkg, "Installed-Size");
		uint64_t next_size = 0;
		if(sscanf(next_size_str,  SCANFU64, &next_size) > 0)
		{
			combined_size = combined_size + next_size; 
		} 
	}
	uint64_t root_size = destination_bytes_free(conf, install_root_name);
	if(combined_size >= root_size )
	{
		fprintf(stderr, "ERROR: Not enough space in destination %s to install specified packages:\n\t%s\n\n", install_root_name, all_pkg_list_str);
		rm_r(tmp_dir);
		exit(1);
	}


	if(all_pkg_list_str != NULL)
	{
		printf("Preparing to install the following packages, which will require " SCANFU64 " bytes:\n\t%s\n\n", combined_size, all_pkg_list_str);
	}
	else
	{
		fprintf(stderr, "No packages to install.\n\n");
	}

	/* Set status of new required packages to half-installed, set user-installed on requested package, installed time on all */
	char* install_root_status_path = dynamic_strcat(2, install_root_path, "/usr/lib/opkg/status");
	string_map* install_root_status = initialize_string_map(1);
	matching_packages = initialize_string_map(1);
	if(path_exists(install_root_status_path))
	{
		load_package_data(install_root_status_path, 0, install_root_status, matching_packages, NULL, LOAD_ALL_PKG_VARIABLES, install_root_name, preferred_provides);
	}
	destroy_string_map(matching_packages, DESTROY_MODE_FREE_VALUES, &num_destroyed);



	time_t now = time(NULL);
	char install_time[20];
	sprintf(install_time, "%lu", now);
	for(pkg_index=0; pkg_index < install_pkg_list_len; pkg_index++)
	{
		int is_installed;
		char* install_version = NULL;
		char** match_criteria = get_string_map_element(install_pkgs_map, install_pkg_list[pkg_index]);
		string_map* pkg = get_package_current_or_latest_matching(package_data, install_pkg_list[pkg_index], match_criteria, &is_installed, &install_version);


		if(is_installed == 0) /* should never be true, but check anyway */
		{
			char* old_status = remove_string_map_element(pkg, "Status");
			free(old_status);
			char* status_parts[3] = { "install", "ok", "half-installed" };
			status_parts[1] = get_string_map_element(pkgs, install_pkg_list[pkg_index]) != NULL ? "user" : status_parts[1];
			char* new_status = dynamic_strcat(5, status_parts[0], " ", status_parts[1], " ", status_parts[2]);
			set_string_map_element(pkg, "Status", new_status);

			set_string_map_element(pkg, "Installed-Time", strdup(install_time));
			set_string_map_element(pkg, "Install-Destination", strdup(install_root_name));
			if(link_root_name != NULL)
			{
				set_string_map_element(pkg, "Link-Destination", strdup(link_root_name));
			}

			add_package_data(install_root_status, &pkg, install_pkg_list[pkg_index], install_version, NULL); 
			/* Note: we just added pkg data structure from package_data to install_root_status, Be careful on cleanup! */
		}
	}
	save_package_data_as_status_file(install_root_status, install_root_status_path);




	

	string_map* install_called_pkgs = initialize_string_map(1);

	int err = 0;
	for(pkg_name_index=0;pkg_name_index < num_pkg_names; pkg_name_index++)
	{
		char* pkg_name = pkg_names[pkg_name_index];
		if(get_string_map_element(install_pkgs_map, pkg_name) != NULL && get_string_map_element(install_called_pkgs, pkg_name) == NULL)
		{
			int install_pkg_is_current;
			char* install_pkg_version = NULL;
			char** version_criteria = get_string_map_element(pkgs, pkg_name);
			get_package_current_or_latest_matching(package_data, pkg_name, version_criteria, &install_pkg_is_current, &install_pkg_version);
			err = recursively_install(pkg_name, install_pkg_version, install_root_name, link_root_name, overlay_path, is_upgrade, overwrite_config, overwrite_other_package_files, tmp_dir, conf, package_data, install_called_pkgs);
		
			free_if_not_null(install_pkg_version);
		}
	}
	

	if(err)
	{
		fprintf(stderr, "An error occurred during Installation, removing partially installed packages.\n");
		unsigned long num_install_called_pkgs;
		char** install_called_pkg_list = get_string_map_keys(install_called_pkgs, &num_install_called_pkgs);
		int pkg_index;
		for(pkg_index=0; pkg_index < num_install_called_pkgs; pkg_index++)
		{
			remove_individual_package(install_called_pkg_list[pkg_index], conf, package_data, tmp_dir, 0, 0);
		}
		free_null_terminated_string_array(install_called_pkg_list);
		//call remove function to do cleanup of partial install
		//DO NOT EXIT HERE, fixup status file below
	}
	//remove tmp dir -- need to do this whether or not there is an error
	rm_r(tmp_dir);
	free(tmp_dir);


	//set status of new packages to installed on success, and remove on failure
	for(pkg_index=0; pkg_index < install_pkg_list_len; pkg_index++)
	{	
		/* no need to check version, should only be one installed version at a time... */
		string_map* pkg = get_package_current_or_latest(install_root_status, install_pkg_list[pkg_index], NULL, NULL); 
		if(pkg != NULL)
		{
			if(!err)
			{
				char* status = get_string_map_element(pkg, "Status");
				if(strstr(status, " half-installed") != NULL)
				{
					char* status_parts[3] = { "install", "ok", "installed" };
					status_parts[1] = get_string_map_element(pkgs, install_pkg_list[pkg_index]) != NULL ? "user" : status_parts[1];
					char* new_status = dynamic_strcat(5, status_parts[0], " ", status_parts[1], " ", status_parts[2]);
					char* old_status = set_string_map_element(pkg, "Status", new_status);
					free_if_not_null(old_status);
				}
			}
			else
			{
				string_map* all_pkg_versions = remove_string_map_element(install_root_status, install_pkg_list[pkg_index]);
				free_all_package_versions(all_pkg_versions);
			}
		}
	}
	save_package_data_as_status_file(install_root_status, install_root_status_path);
	if(!err)
	{
		if(all_pkg_list_str != NULL)
		{
			printf("Installation of packages successful.\n\n");
		}
	}
	else
	{
		printf("Finished removing partially installed packages.\n\n");
	}
}
Beispiel #13
0
int main(int argc, char** argv) {
    
    if(argc < 2)
        show_usage(argc, argv);
    
    static struct option long_options[] = {
        { "force", no_argument, NULL, 'f'},
        { "recursive", no_argument, NULL, 'r'},
        { "dir", no_argument, NULL, 'd'},
        { "verbose", no_argument, NULL, 'v'},
        { "help", no_argument, NULL, 'h'},
        { "version", no_argument, NULL, 'q'},
        { NULL, 0, NULL, 0 }
    };
    
    
    
    int force = 0;
    int rmmode = 0; /* 1: recursive, 2: empty dir */
    int verbose = 0;
    
    
    int c, idx;
    while((c = getopt_long(argc, argv, "frRdv", long_options, &idx)) != -1) {
        switch(c) {
            case 'f':
                force = 1;
                break;
            case 'r':
            case 'R':
                rmmode = 1;
                break;
            case 'd':
                rmmode = 2;
                break;
            case 'v':
                verbose = 1;
                break;
            case 'q':
                show_version(argc, argv);
                break;
            case 'h':
            case '?':
                show_usage(argc, argv);
                break;
            default:
                abort();
        }
    }
    
    if(optind >= argc)
        show_usage(argc, argv);
        
        
    void rm(char* file) {
        if(unlink(file) != 0) {
            if(force)
                return;
              
            fprintf(stderr, "%s: %s: can not remove: %s\n", argv[0], file, strerror(errno));
            exit(-1);
        }
        
        if(verbose)
            fprintf(stdout, "%s: removed\n", file);
    }

    int rm_r(char* dir) {
        DIR* d = opendir(dir);
        if(!d) {
            if(force)
                return -1;
                
            fprintf(stderr, "%s: %s: %s\n", argv[0], dir, strerror(errno));
            exit(-1);
        }
        
        struct dirent* ent;
        while((ent = readdir(d))) {
            char* buf = (char*) calloc(BUFSIZ, 1);
            sprintf(buf, "%s/%s", dir, ent->d_name);
            
            struct stat st;
            if(lstat(buf, &st) != 0) {
                free(buf);
                
                if(force)
                    return -1;
                    
                fprintf(stderr, "%s: %s: can not remove: %s\n", argv[0], buf, strerror(errno));
                exit(-1);
            }
            
            if(S_ISDIR(st.st_mode)) {
                if(rm_r(buf) != 0) {
                    free(buf);
                    
                    fprintf(stderr, "%s: %s: can not remove: %s\n", argv[0], buf, strerror(errno));
                    exit(-1);
                }
            } else
                rm(buf);
            
            free(buf);
            rewinddir(d);
        }
        
        closedir(d);
        rm(dir);
        
        return 0;
    }