auth: various cleanups, use common readcons() from libauthsrv, zero keys after use

1 files changed, 18 insertions, 0 deletions

diff --git a/sys/src/cmd/auth/lib/answer.c b/sys/src/cmd/auth/lib/answer.c
new file mode 100644
index 000000000..856923e43
--- /dev/null
+++ b/sys/src/cmd/auth/lib/answer.c
@@ -0,0 +1,18 @@
+#include <u.h>
+#include <libc.h>
+#include <bio.h>
+#include <authsrv.h>
+#include "authcmdlib.h"
+
+int
+answer(char *q)
+{
+	char pr[128];
+	int y;
+
+	snprint(pr, sizeof(pr), "%s [y/n]", q);
+	q = readcons(pr, nil, 0);
+	y = q != nil && (*q == 'y' || *q == 'Y');
+	free(q);
+	return y;
+}