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comparison ampi.c @ 0:d7da3b1e1540 libtomcrypt

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put back the 0.95 makefile which was inadvertently merged over
author Matt Johnston <matt@ucc.asn.au>
date Mon, 31 May 2004 18:21:40 +0000
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-1:000000000000 0:d7da3b1e1540
1 /* Code submitted by Svante Seleborg, cleaned up by Tom St Denis */
2
3 #include "mycrypt.h"
4 #include <stdarg.h>
5
6 #ifdef MPI
7
8 mp_err mp_init_multi(mp_int *mp, ...)
9 {
10 mp_err res = MP_OKAY; /* Assume ok until proven otherwise */
11 int n = 0; /* Number of ok inits */
12 mp_int* cur_arg = mp;
13 va_list args;
14
15 va_start(args, mp); /* init args to next argument from caller */
16 while (cur_arg != NULL) {
17 if (mp_init(cur_arg) != MP_OKAY) {
18 /* Oops - error! Back-track and mp_clear what we already
19 succeeded in init-ing, then return error.
20 */
21 va_list clean_args;
22 cur_arg = mp;
23 va_start(clean_args, mp);
24 while (n--) {
25 mp_clear(cur_arg);
26 cur_arg = va_arg(clean_args, mp_int*);
27 }
28 va_end(clean_args);
29 res = MP_MEM;
30 break;
31 }
32 n++;
33 cur_arg = va_arg(args, mp_int*);
34 }
35 va_end(args);
36 return res; /* Assumed ok, if error flagged above. */
37 }
38
39 /*
40 Clear all arguments given, ended by a NULL marker.
41 */
42 void mp_clear_multi(mp_int *mp, ...)
43 {
44 mp_int* next_mp = mp;
45 va_list args;
46 va_start(args, mp);
47 while (next_mp != NULL) {
48 mp_clear(next_mp);
49 next_mp = va_arg(args, mp_int*);
50 }
51 va_end(args);
52 }
53
54 #endif
55