1 /* vi: set sw=4 ts=4: */
3 * Copyright 1989 - 1991, Julianne Frances Haugh <jockgrrl@austin.rr.com>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of Julianne F. Haugh nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #include <selinux/selinux.h> /* for setexeccon */
37 static security_context_t current_sid;
40 renew_current_security_context(void)
42 freecon(current_sid); /* Release old context */
43 getcon(¤t_sid); /* update */
46 set_current_security_context(security_context_t sid)
48 freecon(current_sid); /* Release old context */
54 /* Run SHELL, or DEFAULT_SHELL if SHELL is empty.
55 If COMMAND is nonzero, pass it to the shell with the -c option.
56 If ADDITIONAL_ARGS is nonzero, pass it to the shell as more
59 void run_shell(const char *shell, int loginshell, const char *command, const char **additional_args)
63 int additional_args_cnt = 0;
65 for (args = additional_args; args && *args; args++)
66 additional_args_cnt++;
68 args = xmalloc(sizeof(char*) * (4 + additional_args_cnt));
70 args[0] = bb_get_last_path_component_nostrip(xstrdup(shell));
73 args[0] = xasprintf("-%s", args[0]);
77 args[argno++] = command;
79 if (additional_args) {
80 for (; *additional_args; ++additional_args)
81 args[argno++] = *additional_args;
86 setexeccon(current_sid);
87 if (ENABLE_FEATURE_CLEAN_UP)
90 execv(shell, (char **) args);
91 bb_perror_msg_and_die("cannot run %s", shell);