mirror of
https://github.com/sheumann/hush.git
synced 2024-11-18 17:10:36 +00:00
70fc8c17e2
Signed-off-by: Pascal Bellard <pascal.bellard@ads-lu.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
75 lines
2.8 KiB
C
75 lines
2.8 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Copyright 1989 - 1991, Julianne Frances Haugh <jockgrrl@austin.rr.com>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of Julianne F. Haugh nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY JULIE HAUGH AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL JULIE HAUGH OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "libbb.h"
|
|
|
|
void FAST_FUNC setup_environment(const char *shell, int flags, const struct passwd *pw)
|
|
{
|
|
if (!shell || !shell[0])
|
|
shell = DEFAULT_SHELL;
|
|
|
|
/* Change the current working directory to be the home directory
|
|
* of the user */
|
|
if (!(flags & SETUP_ENV_NO_CHDIR)) {
|
|
if (chdir(pw->pw_dir) != 0) {
|
|
bb_error_msg("can't change directory to '%s'", pw->pw_dir);
|
|
xchdir((flags & SETUP_ENV_TO_TMP) ? "/tmp" : "/");
|
|
}
|
|
}
|
|
|
|
if (flags & SETUP_ENV_CLEARENV) {
|
|
const char *term;
|
|
|
|
/* Leave TERM unchanged. Set HOME, SHELL, USER, LOGNAME, PATH.
|
|
* Unset all other environment variables. */
|
|
term = getenv("TERM");
|
|
clearenv();
|
|
if (term)
|
|
xsetenv("TERM", term);
|
|
xsetenv("PATH", (pw->pw_uid ? bb_default_path : bb_default_root_path));
|
|
goto shortcut;
|
|
// No, gcc (4.2.1) is not clever enougn to do it itself.
|
|
//xsetenv("USER", pw->pw_name);
|
|
//xsetenv("LOGNAME", pw->pw_name);
|
|
//xsetenv("HOME", pw->pw_dir);
|
|
//xsetenv("SHELL", shell);
|
|
} else if (flags & SETUP_ENV_CHANGEENV) {
|
|
/* Set HOME, SHELL, and if not becoming a super-user,
|
|
* USER and LOGNAME. */
|
|
if (pw->pw_uid) {
|
|
shortcut:
|
|
xsetenv("USER", pw->pw_name);
|
|
xsetenv("LOGNAME", pw->pw_name);
|
|
}
|
|
xsetenv("HOME", pw->pw_dir);
|
|
xsetenv("SHELL", shell);
|
|
}
|
|
}
|