diff options
Diffstat (limited to 'libbb/vfork_daemon_rexec.c')
| -rw-r--r-- | libbb/vfork_daemon_rexec.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libbb/vfork_daemon_rexec.c b/libbb/vfork_daemon_rexec.c index a49fe8e01..31e97051f 100644 --- a/libbb/vfork_daemon_rexec.c +++ b/libbb/vfork_daemon_rexec.c @@ -28,6 +28,22 @@ # ifndef PR_GET_NAME # define PR_GET_NAME 16 # endif +# if ENABLE_FEATURE_SH_STANDALONE || ENABLE_FEATURE_PREFER_APPLETS || !BB_MMU +int FAST_FUNC re_execed_comm(void) +{ + const char *e, *expected_comm; + char comm[16]; + + BUILD_BUG_ON(CONFIG_BUSYBOX_EXEC_PATH[0] != '/'); + e = CONFIG_BUSYBOX_EXEC_PATH; + /* Hopefully (strrchr(e) - e) evaluates to constant at compile time: */ + expected_comm = bb_busybox_exec_path + (strrchr(e, '/') - e) + 1; + + prctl(PR_GET_NAME, (long)comm, 0, 0, 0); + //bb_error_msg("comm:'%.*s' expected:'%s'", 16, comm, expected_comm); + return strcmp(comm, expected_comm) == 0; +} +# endif void FAST_FUNC set_task_comm(const char *comm) { /* okay if too long (truncates) */ |