BSD 4.4 Lite Lib Sources

1 files changed, 145 insertions, 0 deletions

diff --git a/lib/librpc/secure_rpc/keyserv/mp.c b/lib/librpc/secure_rpc/keyserv/mp.c
new file mode 100644
index 0000000..97c85b0
--- /dev/null
+++ b/lib/librpc/secure_rpc/keyserv/mp.c
@@ -0,0 +1,145 @@
+#ifndef lint
+static char sccsid[] = 	"@(#)mp.c	2.1 88/08/15 4.0 RPCSRC Copyr 1988 Sun Micro";
+#endif
+/*
+ * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+ * unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part.  Users
+ * may copy or modify Sun RPC without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user.
+ * 
+ * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+ * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ * 
+ * Sun RPC is provided with no support and without any obligation on the
+ * part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ * 
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+ * OR ANY PART THEREOF.
+ * 
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ * 
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California  94043
+ */
+
+/*
+ * These routines add hexadecimal functionality to the multiple-precision
+ * library.
+ */
+#include <stdio.h>
+#include <mp.h>
+
+void mfree();
+
+/*
+ * Convert hex digit to binary value
+ */
+static int
+xtoi(c)
+	char c;
+{
+	if (c >= '0' && c <= '9') {
+		return(c - '0');
+	} else if (c >= 'a' && c <= 'f') {
+		return(c - 'a' + 10);
+	} else {
+		return(-1);
+	}
+}
+
+/*
+ * Convert hex key to MINT key
+ */
+MINT *
+xtom(key)
+	char *key;
+{
+	int digit;
+	MINT *m = itom(0);
+	MINT *d;
+	MINT *sixteen;
+ 	sixteen = itom(16);
+	for (; *key; key++) {
+		digit = xtoi(*key);
+		if (digit < 0) {
+			return(NULL);
+		}
+		d = itom(digit);
+		mult(m,sixteen,m);
+		madd(m,d,m);
+		mfree(d);
+	}
+	mfree(sixteen);
+	return(m);
+}
+static char
+itox(d)
+	short d;
+{
+	d &= 15;
+	if (d < 10) {
+		return('0' + d);
+	} else {
+		return('a' - 10 + d);
+	}
+}
+/*
+ * Convert MINT key to hex key
+ */
+char *
+mtox(key)
+	MINT *key;
+{
+	MINT *m = itom(0);
+	MINT *zero = itom(0);
+	short r;
+	char *p;
+	char c;
+	char *s;
+	char *hex;
+	int size;
+#define BASEBITS	(8*sizeof(short) - 1)
+ 	if (key->len >= 0) {
+		size = key->len;
+	} else {
+		size = -key->len;
+	}
+	hex = malloc((unsigned) ((size * BASEBITS + 3)) / 4 + 1);
+	if (hex == NULL) {
+		return(NULL);
+	}
+	move(key,m);
+	p = hex;
+	do {
+		sdiv(m,16,m,&r);
+		*p++ = itox(r);
+	} while (mcmp(m,zero) != 0);
+	mfree(m);
+	mfree(zero);
+ 	*p = 0;
+	for (p--, s = hex; s < p; s++, p--) {
+		c = *p;
+		*p = *s;
+		*s = c;
+	}
+	return(hex);
+}
+/*
+ * Deallocate a multiple precision integer
+ */
+void
+mfree(a)
+	MINT *a;
+{
+	xfree(a);
+	free((char *)a);
+}
+