From f2cf1cc716216308a8a6d07e3afab23be07a6b02 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Mon, 7 Aug 2017 18:45:33 +0200 Subject: noexec: set comm field for noexecs function old new delta set_task_comm - 18 +18 tryexec 152 159 +7 pseudo_exec_argv 321 328 +7 main 106 97 -9 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 3/2 up/down: 34/-13) Total: 23 bytes Signed-off-by: Denys Vlasenko --- libbb/appletlib.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'libbb/appletlib.c') diff --git a/libbb/appletlib.c b/libbb/appletlib.c index fa28d433b..ce259446b 100644 --- a/libbb/appletlib.c +++ b/libbb/appletlib.c @@ -911,6 +911,14 @@ int busybox_main(int argc UNUSED_PARAM, char **argv) } # endif +#if defined(__linux__) && (NUM_APPLETS > 1) +void FAST_FUNC set_task_comm(const char *comm) +{ + /* okay if too long (truncates) */ + prctl(PR_SET_NAME, (long)comm, 0, 0, 0); +} +#endif + # if NUM_APPLETS > 0 void FAST_FUNC run_applet_no_and_exit(int applet_no, const char *name, char **argv) { @@ -1064,15 +1072,14 @@ int main(int argc UNUSED_PARAM, char **argv) applet_name++; applet_name = bb_basename(applet_name); -# if defined(__linux__) /* If we are a result of execv("/proc/self/exe"), fix ugly comm of "exe" */ if (ENABLE_FEATURE_SH_STANDALONE || ENABLE_FEATURE_PREFER_APPLETS || !BB_MMU ) { - prctl(PR_SET_NAME, (long)applet_name, 0, 0, 0); + if (NUM_APPLETS > 1) + set_task_comm(applet_name); } -# endif parse_config_file(); /* ...maybe, if FEATURE_SUID_CONFIG */ run_applet_and_exit(applet_name, argv); -- cgit v1.2.3