+#define _GNU_SOURCE
+#include <ccan/tap/tap.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <ccan/opt/opt.h>
+#include <getopt.h>
+#include <string.h>
+#include <stdio.h>
+#include "utils.h"
+
+unsigned int test_cb_called;
+char *test_noarg(void *arg)
+{
+ test_cb_called++;
+ return NULL;
+}
+
+char *test_arg(const char *optarg, void *arg)
+{
+ test_cb_called++;
+ ok1(strcmp(optarg, arg) == 0);
+ return NULL;
+}
+
+char *err_output = NULL;
+
+static void save_err_output(const char *fmt, ...)
+{
+ va_list ap;
+ char *p;
+
+ va_start(ap, fmt);
+ vasprintf(&p, fmt, ap);
+ va_end(ap);
+
+ if (err_output) {
+ err_output = realloc(err_output,
+ strlen(err_output) + strlen(p) + 1);
+ strcat(err_output, p);
+ free(p);
+ } else
+ err_output = p;
+}
+
+/* FIXME: This leaks, BTW. */
+bool parse_args(int *argc, char ***argv, ...)
+{
+ char **a;
+ va_list ap;
+
+ va_start(ap, argv);
+ *argc = 1;
+ a = malloc(sizeof(*a) * (*argc + 1));
+ a[0] = (*argv)[0];
+ while ((a[*argc] = va_arg(ap, char *)) != NULL) {
+ (*argc)++;
+ a = realloc(a, sizeof(*a) * (*argc + 1));
+ }
+ *argv = a;
+ /* Re-set before parsing. */
+ optind = 0;
+
+ return opt_parse(argc, *argv, save_err_output);
+}
+
+struct opt_table short_table[] = {
+ /* Short opts, different args. */
+ { OPT_WITHOUT_ARG(NULL, 'a', test_noarg, "a"), "Description of a" },
+ { OPT_WITH_ARG(NULL, 'b', test_arg, "b"), "Description of b" },
+ OPT_ENDTABLE
+};
+
+struct opt_table long_table[] = {
+ /* Long opts, different args. */
+ { OPT_WITHOUT_ARG("ddd", 0, test_noarg, "ddd"), "Description of ddd" },
+ { OPT_WITH_ARG("eee", 0, test_arg, "eee"), "Description of eee" },
+ OPT_ENDTABLE
+};
+
+struct opt_table long_and_short_table[] = {
+ /* Short and long, different args. */
+ { OPT_WITHOUT_ARG("ggg", 'g', test_noarg, "ggg"),
+ "Description of ggg" },
+ { OPT_WITH_ARG("hhh", 'h', test_arg, "hhh"), "Description of hhh"},
+ OPT_ENDTABLE
+};
+
+/* Sub-table test. */
+struct opt_table subtables[] = {
+ /* Short and long, no description */
+ { OPT_WITH_ARG("jjj", 'j', test_arg, "jjj") },
+ OPT_SUBTABLE(short_table, NULL),
+ OPT_SUBTABLE(long_table, "long table options"),
+ OPT_SUBTABLE(long_and_short_table, opt_table_hidden),
+ OPT_ENDTABLE
+};