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setup_environment: code shrink

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run_shell: mark as NORETURN
setup_environment, run_shell: add usage comments
login: add FIXME :(

function                                             old     new   delta
UNSPEC_print                                          64      66      +2
sulogin_main                                         509     506      -3
mkfs_minix_main                                     3070    3067      -3
login_main                                          1615    1612      -3
su_main                                              461     448     -13
setup_environment                                    261     206     -55
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/5 up/down: 2/-77)             Total: -75 bytes
   text    data     bss     dec     hex filename
 772578    1051   10724  784353   bf7e1 busybox_old
 772502    1051   10724  784277   bf795 busybox_unstripped
This commit is contained in:
Denis Vlasenko
2007-09-10 13:15:28 +00:00
parent ac074b3f87
commit a2f61012b6
5 changed files with 41 additions and 21 deletions
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16
include/libbb.h
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@ -780,6 +780,7 @@ char *bb_simplify_path(const char *path);
extern void bb_do_delay(int seconds);
extern void change_identity(const struct passwd *pw);
extern const char *change_identity_e2str(const struct passwd *pw);
extern void run_shell(const char *shell, int loginshell, const char *command, const char **additional_args) ATTRIBUTE_NORETURN;
extern void run_shell(const char *shell, int loginshell, const char *command, const char **additional_args);
#if ENABLE_SELINUX
extern void renew_current_security_context(void);
@ -790,6 +791,21 @@ extern void setfscreatecon_or_die(security_context_t scontext);
#endif
extern void selinux_or_die(void);
extern int restricted_shell(const char *shell);
/* setup_environment:
* if loginshell = 1: cd(pw->pw_dir), clear environment, then set
* TERM=(old value)
* USER=pw->pw_name, LOGNAME=pw->pw_name
* PATH=bb_default_[root_]path
* HOME=pw->pw_dir
* SHELL=shell
* else if changeenv = 1:
* if not root (if pw->pw_uid != 0):
* USER=pw->pw_name, LOGNAME=pw->pw_name
* HOME=pw->pw_dir
* SHELL=shell
* else does nothing
*/
extern void setup_environment(const char *shell, int loginshell, int changeenv, const struct passwd *pw);
extern int correct_password(const struct passwd *pw);
/* Returns a ptr to static storage */