76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
/* passwd.c: The opiepasswd() library function.
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%%% copyright-cmetz-96
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This software is Copyright 1996-2001 by Craig Metz, All Rights Reserved.
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The Inner Net License Version 3 applies to this software.
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You should have received a copy of the license with this software. If
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you didn't get a copy, you may request one from <license@inner.net>.
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History:
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Modified by cmetz for OPIE 2.32. Renamed mode to flags. Made flag
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values symbolic constants. Added a flag for insecure override
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support.
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Modified by cmetz for OPIE 2.31. Removed active attack protection
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support.
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Modified by cmetz for OPIE 2.3. Split most of the function off
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and turned this into a front-end for the new __opiewriterec().
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Added code to compute the key from the secret. Use the opie_
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prefix. Use new opieatob8() and opiebtoa8() return values.
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Created by cmetz for OPIE 2.22.
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*/
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#include "opie_cfg.h"
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#include "opie.h"
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int opiepasswd FUNCTION((old, flags, principal, n, seed, ks), struct opie *old AND int flags AND char *principal AND int n AND char *seed AND char *ks)
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{
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int i;
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struct opie opie;
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if ((flags & OPIEPASSWD_CONSOLE) && opieinsecure())
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#if INSECURE_OVERRIDE
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if (!(flags & OPIEPASSWD_FORCE))
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#endif /* INSECURE_OVERRIDE */
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return -1;
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memset(&opie, 0, sizeof(struct opie));
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if (old) {
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opie.opie_flags = old->opie_flags;
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opie.opie_recstart = old->opie_recstart;
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}
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opie.opie_principal = principal;
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opie.opie_n = n;
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opie.opie_seed = seed;
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if (ks) {
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struct opie_otpkey key;
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if (flags & OPIEPASSWD_CONSOLE) {
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if (opiekeycrunch(MDX, &key, seed, ks))
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return -1;
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for (i = n; i; i--)
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opiehash(&key, MDX);
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if (!(opie.opie_val = opiebtoa8(opie.opie_buf, &key)))
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return -1;
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} else {
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if ((opieetob(&key, ks) != 1) && !opieatob8(&key, ks))
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return 1;
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if (!(opie.opie_val = opiebtoa8(opie.opie_buf, &key)))
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return 1;
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}
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}
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if (opielock(principal))
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return -1;
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i = __opiewriterec(&opie);
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if (opieunlock())
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return -1;
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return i;
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}
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