Add an oath_mode(3) function which translates from mode names to numbers.

git-svn-id: svn+ssh://svn.openpam.org/svn/openpam/trunk@846 185d5e19-27fe-0310-9dcf-9bff6b9f3609

doc/man/Makefile.am

@@ -70,6 +70,7 @@ OATH_MAN = \
 	oath_key_free.3 \
 	oath_key_from_file.3 \
 	oath_key_from_uri.3 \
+	oath_mode.3 \
 	oath_uri_decode.3 \
 	$(NULL)
 endif

include/security/oath.h

@@ -48,6 +48,8 @@ char *oath_key_to_uri(const struct oath_key *);
 
 struct oath_key *oath_key_dummy(enum oath_mode, enum oath_hash, unsigned int);
 
+enum oath_mode oath_mode(const char *);
+
 unsigned int oath_hotp(const uint8_t *, size_t, uint64_t, unsigned int);
 unsigned int oath_hotp_current(struct oath_key *);
 int oath_hotp_match(struct oath_key *, unsigned int, int);

lib/liboath/Makefile.am

@@ -18,6 +18,7 @@ liboath_la_SOURCES = \
 	oath_key_from_uri.c \
 	oath_key_free.c \
 	oath_key.c \
+	oath_mode.c \
 	oath_uri_decode.c
 
 liboath_la_LDFLAGS = -no-undefined -version-info $(LIB_MAJ)

lib/liboath/oath_mode.c

@@ -0,0 +1,72 @@
+/*-
+ * Copyright (c) 2014 The University of Oslo
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id$
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <strings.h>
+
+#include <security/oath.h>
+
+static const char *oath_mode_names[om_max] = {
+	[om_hotp] = "hotp",
+	[om_totp] = "totp",
+};
+
+/*
+ * OATH
+ *
+ * Converts a mode name to the corresponding enum value
+ */
+
+enum oath_mode
+oath_mode(const char *str)
+{
+	enum oath_mode om;
+
+	for (om = 0; om < om_max; ++om) {
+		if (oath_mode_names[om] != NULL &&
+		    strcasecmp(oath_mode_names[om], str) == 0) {
+			return (om);
+		}
+	}
+	return (om_undef);
+}
+
+/**
+ * The =oath_mode function returns the =enum oath_mode value that
+ * corresponds to the specified string.
+ *
+ * AUTHOR UIO
+ */