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authorMatt Johnston <matt@ucc.asn.au>2006-03-08 13:23:58 +0000
committerMatt Johnston <matt@ucc.asn.au>2006-03-08 13:23:58 +0000
commit6ae3a09ef33b62811a7f60a1f97dcb89907c1ac1 (patch)
tree37e84722c5b30bbfc86947bee260473d4604b616 /libtommath/bn_mp_fwrite.c
parent33defd1f9b6c4889fe5b075e6abb0b24c00f3a59 (diff)
parent8608a8e64c1aeda096867f43f89e29e1aee207ae (diff)
propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
to branch 'au.asn.ucc.matt.dropbear' (head fdf4a7a3b97ae5046139915de7e40399cceb2c01) --HG-- extra : convert_revision : dc4809882e1b9f2dcd3f8bbe38c74a0a52c39ce4
Diffstat (limited to 'libtommath/bn_mp_fwrite.c')
-rw-r--r--libtommath/bn_mp_fwrite.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/libtommath/bn_mp_fwrite.c b/libtommath/bn_mp_fwrite.c
new file mode 100644
index 0000000..8fa3129
--- /dev/null
+++ b/libtommath/bn_mp_fwrite.c
@@ -0,0 +1,48 @@
+#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, tomstdenis@iahu.ca, 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