static char *program_name;
+void logger(int level, int priority, const char *format, ...) {
+ va_list ap;
+ va_start(ap, format);
+ vfprintf(stderr, format, ap);
+ va_end(ap);
+ fputc('\n', stderr);
+}
+
static void usage() {
fprintf(stderr, "Usage: %s [options] private_key_file public_key_file\n\n", program_name);
fprintf(stderr, "Valid options are:\n"