1 files changed, 70 insertions, 0 deletions
diff --git a/contrib/opie/libopie/parsechallenge.c b/contrib/opie/libopie/parsechallenge.c
new file mode 100644
index 0000000000000..9dca1e66df4ca
--- /dev/null
+++ b/contrib/opie/libopie/parsechallenge.c
@@ -0,0 +1,70 @@
+/* parsechallenge.c: The _opieparsechallenge() library function.
+
+%%% copyright-cmetz
+This software is Copyright 1996 by Craig Metz, All Rights Reserved.
+The Inner Net License Version 2 applies to this software.
+You should have received a copy of the license with this software. If
+you didn't get a copy, you may request one from <license@inner.net>.
+
+        History:
+
+	Created by cmetz for OPIE 2.3 using generator.c as a guide.
+*/
+
+#include "opie_cfg.h"
+#if HAVE_STRING_H
+#include <string.h>
+#endif /* HAVE_STRING_H */
+#include "opie.h"
+
+struct algorithm {
+  char *name;
+  int num;
+};
+
+static struct algorithm algorithms[] = {
+  { "md5", 5 },
+  { "md4", 4 },
+  { "sha1", 3 },
+  { NULL, 0 },
+};
+
+int _opieparsechallenge FUNCTION((buffer, algorithm, sequence, seed), char *buffer AND int *algorithm AND int *sequence AND char **seed)
+{
+  char *c;
+
+  if (!(c = strchr(buffer, ' ')))
+    return 1;
+
+  {
+    struct algorithm *a;
+
+    for (a = algorithms; a->name && strncmp(buffer, a->name, (int)(c - buffer)); a++);
+    if (!a->name)
+      return -1;
+
+    *algorithm = a->num;
+  }
+
+  if ((*sequence = strtoul(++c, &c, 10)) > 9999)
+    return -1;
+
+  while(*c && isspace(*c)) c++;
+  if (!*c)
+    return -1;
+
+  buffer = c;
+  while(*c && !isspace(*c)) c++;
+
+  {
+    int i = (int)(c - buffer);
+
+    if ((i > OPIE_SEED_MAX) || (i < OPIE_SEED_MIN))
+      return -1;
+  }
+
+  *seed = buffer;
+  *c = 0;
+
+  return 0;
+}