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46 lines
992 B
46 lines
992 B
#include "tommath_private.h"
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#ifdef BN_MP_FWRITE_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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#ifndef MP_NO_FILE
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mp_err mp_fwrite(const mp_int *a, int radix, FILE *stream)
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{
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char *buf;
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mp_err err;
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int len;
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size_t written;
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/* TODO: this function is not in this PR */
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if (MP_HAS(MP_RADIX_SIZE_OVERESTIMATE)) {
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/* if ((err = mp_radix_size_overestimate(&t, base, &len)) != MP_OKAY) goto LBL_ERR; */
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} else {
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if ((err = mp_radix_size(a, radix, &len)) != MP_OKAY) {
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return err;
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}
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}
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buf = (char *) MP_MALLOC((size_t)len);
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if (buf == NULL) {
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return MP_MEM;
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}
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if ((err = mp_to_radix(a, buf, (size_t)len, &written, radix)) != MP_OKAY) {
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goto LBL_ERR;
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}
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if (fwrite(buf, written, 1uL, stream) != 1uL) {
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err = MP_ERR;
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goto LBL_ERR;
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}
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err = MP_OKAY;
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LBL_ERR:
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MP_FREE_BUFFER(buf, (size_t)len);
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return err;
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}
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#endif
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#endif
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