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Diffstat (limited to 'libbb/vfork_daemon_rexec.c')
-rw-r--r--libbb/vfork_daemon_rexec.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/libbb/vfork_daemon_rexec.c b/libbb/vfork_daemon_rexec.c
index a49fe8e..31e9705 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) */