+static int hook_status(int code, const char *hook_name)
+{
+ switch (code) {
+ case 0:
+ return 0;
+ case -ERR_RUN_COMMAND_FORK:
+ return error("hook fork failed");
+ case -ERR_RUN_COMMAND_EXEC:
+ return error("hook execute failed");
+ case -ERR_RUN_COMMAND_WAITPID:
+ return error("waitpid failed");
+ case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
+ return error("waitpid is confused");
+ case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
+ return error("%s died of signal", hook_name);
+ case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
+ return error("%s died strangely", hook_name);
+ default:
+ error("%s exited with error code %d", hook_name, -code);
+ return -code;
+ }
+}
+