lib/libopie/opieextra.c

   1 /*
   2  * This file contains routines modified from OpenBSD. Parts are contributed
   3  * by Todd Miller <millert@openbsd.org>, Theo De Raadt <deraadt@openbsd.org>
   4  * and possibly others.
   5  *
   6  * $FreeBSD: src/lib/libopie/opieextra.c,v 1.1.2.2 2002/07/15 14:17:08 des Exp $
   7  */
   8
   9 #include <sys/types.h>
  10 #include <stdio.h>
  11 #include <opie.h>
  12
  13 /*
  14  * opie_haopie()
  15  *
  16  * Returns: 1 user doesnt exist, -1 file error, 0 user exists.
  17  *
  18  */
  19 int
  20 opie_haskey(char *username)
  21 {
  22         struct opie opie;
  23
  24         return opielookup(&opie, username);
  25 }
  26
  27 /*
  28  * opie_keyinfo()
  29  *
  30  * Returns the current sequence number and
  31  * seed for the passed user.
  32  *
  33  */
  34 char *
  35 opie_keyinfo(char *username)
  36 {
  37         int i;
  38         static char str[OPIE_CHALLENGE_MAX];
  39         struct opie opie;
  40
  41         i = opiechallenge(&opie, username, str);
  42         if (i == -1)
  43                 return(0);
  44
  45         return(str);
  46 }
  47
  48 /*
  49  * opie_passverify()
  50  *
  51  * Check to see if answer is the correct one to the current
  52  * challenge.
  53  *
  54  * Returns: 0 success, -1 failure
  55  *
  56  */
  57 int
  58 opie_passverify(char *username, char *passwd)
  59 {
  60         int i;
  61         struct opie opie;
  62
  63         i = opielookup(&opie, username);
  64         if (i == -1 || i == 1)
  65                 return(-1);
  66
  67         if (opieverify(&opie, passwd) == 0)
  68                 return(opie.opie_n);
  69
  70         return(-1);
  71 }
  72
  73 #define OPIE_HASH_DEFAULT       1
  74
  75 /* Current hash type (index into opie_hash_types array) */
  76 static int opie_hash_type = OPIE_HASH_DEFAULT;
  77
  78 struct opie_algorithm_table {
  79         const char *name;
  80 };
  81
  82 static struct opie_algorithm_table opie_algorithm_table[] = {
  83         { "md4" }, { "md5" }
  84 };
  85
  86 /* Get current hash type */
  87 const char *
  88 opie_get_algorithm(void)
  89 {
  90         return(opie_algorithm_table[opie_hash_type].name);
  91 }
  92
  93