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46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/* randomchallenge.c: The opierandomchallenge() library function.
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%%% portions-copyright-cmetz-96
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Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
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Reserved. The Inner Net License Version 2 applies to these portions of
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the 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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Portions of this software are Copyright 1995 by Randall Atkinson and Dan
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McDonald, All Rights Reserved. All Rights under this copyright are assigned
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to the U.S. Naval Research Laboratory (NRL). The NRL Copyright Notice and
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License Agreement applies to this software.
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History:
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Modified by cmetz for OPIE 2.32. Initialize algids[] with 0s
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instead of NULL.
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Modified by cmetz for OPIE 2.3. Add sha support.
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Modified by cmetz for OPIE 2.22. Don't include stdio.h.
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Use opienewseed(). Don't include unneeded headers.
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Modified by cmetz for OPIE 2.2. Use FUNCTION declaration et al.
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Changed use of gethostname() to uname(). Ifdefed around some
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headers.
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Created at NRL for OPIE 2.2 from opiesubr2.c
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*/
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#include "opie_cfg.h"
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#include "opie.h"
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static char *algids[] = { 0, 0, 0, "sha1", "md4", "md5" };
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/* Generate a random challenge */
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/* This could grow into quite a monster, really. Random is good enough for
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most situations; it is certainly better than a fixed string */
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VOIDRET opierandomchallenge FUNCTION((prompt), char *prompt)
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{
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char buf[OPIE_SEED_MAX + 1];
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buf[0] = 0;
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if (opienewseed(buf))
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strcpy(buf, "ke4452");
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sprintf(prompt, "otp-%s %d %s ext", algids[MDX], (rand() % 499) + 1, buf);
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}
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