X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=libbb%2Fsetup_environment.c;h=19a2c6db5aeac6497647b34fa543a3e3778978c8;hb=d21f596ddb294bdb65623ba1d0e49b17d0829229;hp=18d5a0610aecb6b2e36f329e9f762d418047f119;hpb=0de3c55b4286498753751b7cd63f3af12f0ebd0f;p=oweals%2Fbusybox.git diff --git a/libbb/setup_environment.c b/libbb/setup_environment.c index 18d5a0610..19a2c6db5 100644 --- a/libbb/setup_environment.c +++ b/libbb/setup_environment.c @@ -30,47 +30,41 @@ #include "libbb.h" -/* util-linux manpage says /sbin:/bin:/usr/sbin:/usr/bin, - * but I want to save a few bytes here */ -static const char DEFAULT_ROOT_LOGIN_PATH[] = "/sbin:/usr/sbin:/bin:/usr/bin"; -#define DEFAULT_LOGIN_PATH (DEFAULT_ROOT_LOGIN_PATH + sizeof("/sbin:/usr/sbin")) - void setup_environment(const char *shell, int loginshell, int changeenv, const struct passwd *pw) { 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=/ - */ + * of the user */ if (chdir(pw->pw_dir)) { xchdir("/"); fputs("warning: cannot change to home directory\n", stderr); } - /* Leave TERM unchanged. Set HOME, SHELL, USER, LOGNAME, PATH. + /* 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)); + 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 (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) { + shortcut: xsetenv("USER", pw->pw_name); xsetenv("LOGNAME", pw->pw_name); } + xsetenv("HOME", pw->pw_dir); + xsetenv("SHELL", shell); } }