From 8a1145c29a789e06a591df5d5f97f87c71eaeb5a Mon Sep 17 00:00:00 2001
From: "David M. Syzdek" <david@syzdek.net>
Date: Mon, 16 Jan 2023 19:32:37 -0900
Subject: libotputil: adding otputil_encoding2str() and otputil_str2encoding()

---
 include/otputil.h             | 10 ++++++++++
 lib/libotputil/libotputil.sym |  2 ++
 lib/libotputil/lmisc.c        | 44 ++++++++++++++++++++++++++++++++++++++++---
 3 files changed, 53 insertions(+), 3 deletions(-)

diff --git a/include/otputil.h b/include/otputil.h
index 8b08583..cdb177b 100644
--- a/include/otputil.h
+++ b/include/otputil.h
@@ -315,6 +315,11 @@ otputil_debug(
          FILE *                        fs );
 
 
+_OTPUTIL_F const char *
+otputil_encoding2str(
+         int                           hmac );
+
+
 _OTPUTIL_F char *
 otputil_getpass(
          const char *                  prompt,
@@ -332,6 +337,11 @@ otputil_meth2str(
          int                           hmac );
 
 
+_OTPUTIL_F int
+otputil_str2encoding(
+         const char *                  str );
+
+
 _OTPUTIL_F int
 otputil_str2md(
          const char *                  str );
diff --git a/lib/libotputil/libotputil.sym b/lib/libotputil/libotputil.sym
index 3c3c4c2..7a7ebbf 100644
--- a/lib/libotputil/libotputil.sym
+++ b/lib/libotputil/libotputil.sym
@@ -71,10 +71,12 @@ otputil_set_param
 #
 # misc functions
 otputil_debug
+otputil_encoding2str
 otputil_err2string
 otputil_getpass
 otputil_md2str
 otputil_meth2str
+otputil_str2encoding
 otputil_str2md
 otputil_str2meth
 #
diff --git a/lib/libotputil/lmisc.c b/lib/libotputil/lmisc.c
index 1ec3c78..8312e86 100644
--- a/lib/libotputil/lmisc.c
+++ b/lib/libotputil/lmisc.c
@@ -55,10 +55,23 @@
 /////////////////
 #pragma mark - Variables
 
+#pragma mark otputil_encoding_list[]
+static const otputil_map_t otputil_encoding_list[] =
+{
+   { .map_name = "none",            .map_id = 0 },
+   { .map_name = "hex",             .map_id = OTPUTIL_ENC_HEX },
+   { .map_name = "six-word",        .map_id = OTPUTIL_ENC_SIXWORD },
+   { .map_name = "altdict",         .map_id = OTPUTIL_ENC_ALTDICT },
+   // duplicate names
+   { .map_name = "six",             .map_id = OTPUTIL_ENC_SIXWORD },
+   { .map_name = NULL,              .map_id = 0 },
+};
+
+
 #pragma mark otputil_md_list[]
 static const otputil_map_t otputil_md_list[] =
 {
-   { .map_name = "none",            .map_id = OTPUTIL_MD_NONE },
+   { .map_name = "none",            .map_id = 0 },
    { .map_name = "md4",             .map_id = OTPUTIL_MD_MD4 },
    { .map_name = "md5",             .map_id = OTPUTIL_MD_MD5 },
    { .map_name = "sha1",            .map_id = OTPUTIL_MD_SHA1 },
@@ -123,7 +136,7 @@ otputil_debug(
    fprintf(fs, "\n");
 
    fprintf(fs, "OTP (RFC 2289) Options:\n");
-   fprintf(fs, "   OTPUTIL_OPT_OTP_ENCODE:   %i\n", tud->otp_encoding);
+   fprintf(fs, "   OTPUTIL_OPT_OTP_ENCODE:   %s (%i)\n", otputil_encoding2str(tud->otp_encoding), tud->otp_encoding);
    fprintf(fs, "   OTPUTIL_OPT_OTP_HASH:     %s (%i)\n", otputil_md2str(tud->otp_hash), tud->otp_hash);
    fprintf(fs, "   OTPUTIL_OPT_OTP_PASS:     %s\n", (((tud->otp_pass)) ? tud->otp_pass : "n/a"));
    fprintf(fs, "   OTPUTIL_OPT_OTP_SEED:     %s\n", (((tud->otp_seed)) ? tud->otp_seed : "n/a"));
@@ -131,7 +144,7 @@ otputil_debug(
    fprintf(fs, "\n");
 
    fprintf(fs, "S/KEY (RFC 1760) Options:\n");
-   fprintf(fs, "   OTPUTIL_OPT_SKEY_ENCODE:  %i\n", tud->skey_encoding);
+   fprintf(fs, "   OTPUTIL_OPT_SKEY_ENCODE:  %s (%i)\n", otputil_encoding2str(tud->skey_encoding), tud->skey_encoding);
    fprintf(fs, "   OTPUTIL_OPT_SKEY_HASH:    %s (%i)\n", otputil_md2str(tud->skey_hash), tud->skey_hash);
    fprintf(fs, "   OTPUTIL_OPT_SKEY_PASS:    %s\n", (((tud->skey_pass)) ? tud->skey_pass : "n/a"));
    fprintf(fs, "   OTPUTIL_OPT_SKEY_SEQ:     %i\n", tud->skey_seq);
@@ -149,6 +162,18 @@ otputil_debug(
 }
 
 
+const char *
+otputil_encoding2str(
+         int                           md )
+{
+   int x;
+   for(x = 0; ((otputil_encoding_list[x].map_name)); x++)
+      if (md == otputil_encoding_list[x].map_id)
+         return(otputil_encoding_list[x].map_name);
+   return(NULL);
+}
+
+
 const char *
 otputil_err2string(
          int                           err )
@@ -231,6 +256,19 @@ otputil_meth2str(
 }
 
 
+int
+otputil_str2encoding(
+         const char *                  str )
+{
+   int x;
+   assert(str != NULL);
+   for(x = 0; ((otputil_encoding_list[x].map_name)); x++)
+      if (!(strcasecmp(str, otputil_encoding_list[x].map_name)))
+         return(otputil_encoding_list[x].map_id);
+   return(-1);
+}
+
+
 int
 otputil_str2md(
          const char *                  str )
-- 
cgit v1.2.3