12 static void report(const char *prefix, const char *err, va_list params)  in report()  argument
15 	vsnprintf(msg, sizeof(msg), err, params);  in report()
19 static NORETURN void usage_builtin(const char *err)  in usage_builtin()  argument
21 	fprintf(stderr, "\n Usage: %s\n", err);  in usage_builtin()
25 static NORETURN void die_builtin(const char *err, va_list params)  in die_builtin()  argument
27 	report(" Fatal: ", err, params);  in die_builtin()
31 static void error_builtin(const char *err, va_list params)  in error_builtin()  argument
33 	report(" Error: ", err, params);  in error_builtin()
43 static void (*usage_routine)(const char *err) NORETURN = usage_builtin;
44 static void (*die_routine)(const char *err, va_list params) NORETURN = die_builtin;
45 static void (*error_routine)(const char *err, va_list params) = error_builtin;
46 static void (*warn_routine)(const char *err, va_list params) = warn_builtin;
48 void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN)  in set_die_routine()  argument
53 void usage(const char *err)  in usage()  argument
55 	usage_routine(err);  in usage()
58 void die(const char *err, ...)  in die()  argument
62 	va_start(params, err);  in die()
63 	die_routine(err, params);  in die()
67 int error(const char *err, ...)  in error()  argument
71 	va_start(params, err);  in error()
72 	error_routine(err, params);  in error()