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  * $DragonFly: src/lib/libopie/opieextra.c,v 1.4 2008/09/30 16:57:05 swildner Exp $
   8  */
   9
  10 #include <sys/types.h>
  11 #include <stdio.h>
  12 #include <opie.h>
  13
  14 /*
  15  * opie_haopie()
  16  *
  17  * Returns: 1 user doesnt exist, -1 file error, 0 user exists.
  18  *
  19  */
  20 int
  21 opie_haskey(char *username)
  22 {
  23         struct opie opie;
  24
  25         return opielookup(&opie, username);
  26 }
  27
  28 /*
  29  * opie_keyinfo()
  30  *
  31  * Returns the current sequence number and
  32  * seed for the passed user.
  33  *
  34  */
  35 char *
  36 opie_keyinfo(char *username)
  37 {
  38         int i;
  39         static char str[OPIE_CHALLENGE_MAX];
  40         struct opie opie;
  41
  42         i = opiechallenge(&opie, username, str);
  43         if (i == -1)
  44                 return(0);
  45
  46         return(str);
  47 }
  48
  49 /*
  50  * opie_passverify()
  51  *
  52  * Check to see if answer is the correct one to the current
  53  * challenge.
  54  *
  55  * Returns: 0 success, -1 failure
  56  *
  57  */
  58 int
  59 opie_passverify(char *username, char *passwd)
  60 {
  61         int i;
  62         struct opie opie;
  63
  64         i = opielookup(&opie, username);
  65         if (i == -1 || i == 1)
  66                 return(-1);
  67
  68         if (opieverify(&opie, passwd) == 0)
  69                 return(opie.opie_n);
  70
  71         return(-1);
  72 }
  73
  74 #define OPIE_HASH_DEFAULT       1
  75
  76 /* Current hash type (index into opie_hash_types array) */
  77 static int opie_hash_type = OPIE_HASH_DEFAULT;
  78
  79 struct opie_algorithm_table {
  80         const char *name;
  81 };
  82
  83 static struct opie_algorithm_table opie_algorithm_table[] = {
  84         "md4", "md5"
  85 };
  86
  87 /* Get current hash type */
  88 const char *
  89 opie_get_algorithm(void)
  90 {
  91         return(opie_algorithm_table[opie_hash_type].name);
  92 }
  93
  94