dropbear: bn_mp_fwrite.c comparison

Import of libtommath 0.35 From ltm-0.35.tar.bz2 SHA1 of 3f193dbae9351e92d02530994fa18236f7fde01c

comparison

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--1:000000000000
+:91fbc376f010
+#include <tommath.h>
+#ifdef BN_MP_FWRITE_C
+/* LibTomMath, multiple-precision integer library -- Tom St Denis
+*
+* LibTomMath is a library that provides multiple-precision
+* integer arithmetic as well as number theoretic functionality.
+*
+* The library was designed directly after the MPI library by
+* 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.
+*
+* Tom St Denis, [email protected], http://math.libtomcrypt.org
+*/
+int mp_fwrite(mp_int *a, int radix, FILE *stream)
+{
+char *buf;
+int err, len, x;
+if ((err = mp_radix_size(a, radix, &len)) != MP_OKAY) {
+return err;
+}
+buf = OPT_CAST(char) XMALLOC (len);
+if (buf == NULL) {
+return MP_MEM;
+}
+if ((err = mp_toradix(a, buf, radix)) != MP_OKAY) {
+XFREE (buf);
+return err;
+}
+for (x = 0; x < len; x++) {
+if (fputc(buf[x], stream) == EOF) {
+XFREE (buf);
+return MP_VAL;
+}
+}
+XFREE (buf);
+return MP_OKAY;
+}
+#endif

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