#define DEFAULT_LOGIN_PATH "/bin:/usr/bin"
#define DEFAULT_ROOT_LOGIN_PATH "/usr/sbin:/bin:/usr/bin:/sbin"
-static void xsetenv ( const char *key, const char *value )
+void setup_environment(const char *shell, int loginshell, int changeenv, const struct passwd *pw)
{
- if ( setenv ( key, value, 1 ))
- bb_error_msg_and_die (bb_msg_memory_exhausted);
-}
-
-void setup_environment ( const char *shell, int loginshell, int changeenv, const struct passwd *pw )
-{
- if ( loginshell ) {
+ if (loginshell) {
const char *term;
-
+
/* Change the current working directory to be the home directory
* of the user. It is a fatal error for this process to be unable
* to change to that directory. There is no "default" home
* directory.
* Some systems default to HOME=/
- */
- if ( chdir ( pw-> pw_dir )) {
- if ( chdir ( "/" )) {
- syslog ( LOG_WARNING, "unable to cd to %s' for user %s'\n", pw-> pw_dir, pw-> pw_name );
- bb_error_msg_and_die ( "cannot cd to home directory or /" );
- }
- fputs ( "warning: cannot change to home directory\n", stderr );
+ */
+ if (chdir(pw->pw_dir)) {
+ xchdir("/");
+ fputs("warning: cannot change to home directory\n", stderr);
}
/* Leave TERM unchanged. Set HOME, SHELL, USER, LOGNAME, PATH.
Unset all other environment variables. */
- term = getenv ("TERM");
- clearenv ( );
- if ( term )
- xsetenv ( "TERM", term );
- xsetenv ( "HOME", pw-> pw_dir );
- xsetenv ( "SHELL", shell );
- xsetenv ( "USER", pw-> pw_name );
- xsetenv ( "LOGNAME", pw-> pw_name );
- xsetenv ( "PATH", ( pw-> pw_uid ? DEFAULT_LOGIN_PATH : DEFAULT_ROOT_LOGIN_PATH ));
+ term = getenv("TERM");
+ clearenv();
+ if (term)
+ xsetenv("TERM", term);
+ xsetenv("HOME", pw->pw_dir);
+ xsetenv("SHELL", shell);
+ xsetenv("USER", pw->pw_name);
+ xsetenv("LOGNAME", pw->pw_name);
+ xsetenv("PATH", (pw->pw_uid ? DEFAULT_LOGIN_PATH : DEFAULT_ROOT_LOGIN_PATH));
}
- else if ( changeenv ) {
+ else if (changeenv) {
/* Set HOME, SHELL, and if not becoming a super-user,
- USER and LOGNAME. */
- xsetenv ( "HOME", pw-> pw_dir );
- xsetenv ( "SHELL", shell );
- if ( pw-> pw_uid ) {
- xsetenv ( "USER", pw-> pw_name );
- xsetenv ( "LOGNAME", pw-> pw_name );
+ USER and LOGNAME. */
+ xsetenv("HOME", pw->pw_dir);
+ xsetenv("SHELL", shell);
+ if (pw->pw_uid) {
+ xsetenv("USER", pw->pw_name);
+ xsetenv("LOGNAME", pw->pw_name);
}
}
}
-