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42 lines
1.1 KiB
42 lines
1.1 KiB
#include "tommath_private.h"
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#ifdef BN_MP_INIT_MULTI_C
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/* LibTomMath, multiple-precision integer library -- Tom St Denis */
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/* SPDX-License-Identifier: Unlicense */
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#include <stdarg.h>
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mp_err mp_init_multi(mp_int *mp, ...)
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{
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mp_err err = MP_OKAY; /* Assume ok until proven otherwise */
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int n = 0; /* Number of ok inits */
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mp_int *cur_arg = mp;
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va_list args;
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va_start(args, mp); /* init args to next argument from caller */
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while (cur_arg != NULL) {
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if (mp_init(cur_arg) != MP_OKAY) {
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/* Oops - error! Back-track and mp_clear what we already
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succeeded in init-ing, then return error.
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*/
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va_list clean_args;
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/* now start cleaning up */
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cur_arg = mp;
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va_start(clean_args, mp);
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while (n-- != 0) {
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mp_clear(cur_arg);
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cur_arg = va_arg(clean_args, mp_int *);
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}
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va_end(clean_args);
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err = MP_MEM;
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break;
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}
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n++;
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cur_arg = va_arg(args, mp_int *);
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}
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va_end(args);
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return err; /* Assumed ok, if error flagged above. */
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}
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#endif
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