diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2017-08-07 19:24:57 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2017-08-07 19:24:57 +0200 |
| commit | 80e8e3cc0542ac6242d49eaf223146dcbf2fa0da (patch) | |
| tree | 8e5ade097b6c26fd585aa2ffd06a20d943ae4e93 /libbb | |
| parent | c9c1ccc4ed7e7525a2e3c07d855c7a27c3534430 (diff) | |
| download | busybox-80e8e3cc0542ac6242d49eaf223146dcbf2fa0da.tar.gz | |
noexec: consolidate code
function old new delta
run_noexec_applet_and_exit - 61 +61
find_applet_by_name 128 124 -4
run_applet_no_and_exit 441 434 -7
tryexec 169 152 -17
pseudo_exec_argv 338 321 -17
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/6 up/down: 61/-48) Total: 13 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/appletlib.c | 2 | ||||
| -rw-r--r-- | libbb/vfork_daemon_rexec.c | 37 |
2 files changed, 21 insertions, 18 deletions
diff --git a/libbb/appletlib.c b/libbb/appletlib.c index ce259446b..5b84920a4 100644 --- a/libbb/appletlib.c +++ b/libbb/appletlib.c @@ -924,8 +924,6 @@ void FAST_FUNC run_applet_no_and_exit(int applet_no, const char *name, char **ar { int argc = string_array_len(argv); - /* Reinit some shared global data */ - xfunc_error_retval = EXIT_FAILURE; /* * We do not use argv[0]: do not want to repeat massaging of * "-/sbin/halt" -> "halt", for example. diff --git a/libbb/vfork_daemon_rexec.c b/libbb/vfork_daemon_rexec.c index 9d3cb9d54..a349459f0 100644 --- a/libbb/vfork_daemon_rexec.c +++ b/libbb/vfork_daemon_rexec.c @@ -158,6 +158,26 @@ int FAST_FUNC run_nofork_applet(int applet_no, char **argv) } #endif /* FEATURE_PREFER_APPLETS || FEATURE_SH_NOFORK */ +#if (NUM_APPLETS > 1) && (ENABLE_FEATURE_PREFER_APPLETS || ENABLE_FEATURE_SH_STANDALONE) +void FAST_FUNC run_noexec_applet_and_exit(int a, const char *name, char **argv) +{ + /* reset some state and run without execing */ + /* msg_eol = "\n"; - no caller needs this reinited yet */ + logmode = LOGMODE_STDIO; + xfunc_error_retval = EXIT_FAILURE; + die_func = NULL; + GETOPT_RESET(); + +//TODO: think pidof, pgrep, pkill! +//set_task_comm() makes our pidof find NOEXECs (e.g. "yes >/dev/null"), +//but one from procps-ng-3.3.10 needs more! +//Rewrite /proc/PID/cmdline? (need to save argv0 and length at init for this to work!) + set_task_comm(name); + /* xfunc_error_retval and applet_name are init by: */ + run_applet_no_and_exit(a, name, argv); +} +#endif + int FAST_FUNC spawn_and_wait(char **argv) { int rc; @@ -175,22 +195,7 @@ int FAST_FUNC spawn_and_wait(char **argv) return wait4pid(rc); /* child */ - /* reset some state and run without execing */ - GETOPT_RESET(); - - /* msg_eol = "\n"; - no caller needs this reinited yet */ - logmode = LOGMODE_STDIO; - /* die_func = NULL; - needed if the caller is a shell, - * init, or a NOFORK applet. But none of those call us - * as of yet (and that should probably always stay true). - */ -//TODO: think pidof, pgrep, pkill! -//set_task_comm() makes our pidof find NOEXECs (e.g. "yes >/dev/null"), -//but one from procps-ng-3.3.10 needs more! -//Rewrite /proc/PID/cmdline? (need to save argv0 and length at init for this to work!) - set_task_comm(argv[0]); - /* xfunc_error_retval and applet_name are init by: */ - run_applet_no_and_exit(a, argv[0], argv); + run_noexec_applet_and_exit(a, argv[0], argv); } # endif } |