tommath/bn_mp_fwrite.c

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#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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* LibTomMath is a library that provides multiple-precision
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* integer arithmetic as well as number theoretic functionality.
*
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* The library was designed directly after the MPI library by
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* Michael Fromberger but has been written from scratch with
* additional optimizations in place.
*
* The library is free for all purposes without any express
* guarantee it works.
*/
#ifndef LTM_NO_FILE
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int mp_fwrite(const mp_int *a, int radix, FILE *stream)
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{
char *buf;
int err, len, x;
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if ((err = mp_radix_size(a, radix, &len)) != MP_OKAY) {
return err;
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}
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buf = OPT_CAST(char) XMALLOC((size_t)len);
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if (buf == NULL) {
return MP_MEM;
}
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if ((err = mp_toradix(a, buf, radix)) != MP_OKAY) {
XFREE(buf);
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return err;
}
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for (x = 0; x < len; x++) {
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if (fputc((int)buf[x], stream) == EOF) {
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XFREE(buf);
return MP_VAL;
}
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}
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XFREE(buf);
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return MP_OKAY;
}
#endif
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#endif
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/* ref: $Format:%D$ */
/* git commit: $Format:%H$ */
/* commit time: $Format:%ai$ */