1 files changed, 119 insertions, 0 deletions

diff --git a/src/lib/libc/net/iso_addr.c b/src/lib/libc/net/iso_addr.c
new file mode 100644
index 0000000000..01561e395b
--- /dev/null
+++ b/src/lib/libc/net/iso_addr.c
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 1989, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the University of
+ *      California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char rcsid[] = "$OpenBSD: iso_addr.c,v 1.2 1996/08/19 08:29:23 tholo Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+#include <netiso/iso.h>
+#include <string.h>
+
+/* States*/
+#define VIRGIN  0
+#define GOTONE  1
+#define GOTTWO  2
+/* Inputs */
+#define DIGIT   (4*0)
+#define END     (4*1)
+#define DELIM   (4*2)
+
+struct iso_addr *
+iso_addr(addr)
+        register const char *addr;
+{
+        static struct iso_addr out_addr;
+        register char *cp = out_addr.isoa_genaddr;
+        char *cplim = cp + sizeof(out_addr.isoa_genaddr);
+        register int byte = 0, state = VIRGIN, new;
+
+        bzero((char *)&out_addr, sizeof(out_addr));
+        do {
+                if ((*addr >= '0') && (*addr <= '9')) {
+                        new = *addr - '0';
+                } else if ((*addr >= 'a') && (*addr <= 'f')) {
+                        new = *addr - 'a' + 10;
+                } else if ((*addr >= 'A') && (*addr <= 'F')) {
+                        new = *addr - 'A' + 10;
+                } else if (*addr == 0) 
+                        state |= END;
+                else
+                        state |= DELIM;
+                addr++;
+                switch (state /* | INPUT */) {
+                case GOTTWO | DIGIT:
+                        *cp++ = byte; /*FALLTHROUGH*/
+                case VIRGIN | DIGIT:
+                        state = GOTONE; byte = new; continue;
+                case GOTONE | DIGIT:
+                        state = GOTTWO; byte = new + (byte << 4); continue;
+                default: /* | DELIM */
+                        state = VIRGIN; *cp++ = byte; byte = 0; continue;
+                case GOTONE | END:
+                case GOTTWO | END:
+                        *cp++ = byte; /* FALLTHROUGH */
+                case VIRGIN | END:
+                        break;
+                }
+                break;
+        } while (cp < cplim); 
+        out_addr.isoa_len = cp - out_addr.isoa_genaddr;
+        return (&out_addr);
+}
+static char hexlist[] = "0123456789abcdef";
+
+char *
+iso_ntoa(isoa)
+        const struct iso_addr *isoa;
+{
+        static char obuf[64];
+        register char *out = obuf; 
+        register int i;
+        register u_char *in = (u_char *)isoa->isoa_genaddr;
+        u_char *inlim = in + isoa->isoa_len;
+
+        out[1] = 0;
+        while (in < inlim) {
+                i = *in++;
+                *out++ = '.';
+                if (i > 0xf) {
+                        out[1] = hexlist[i & 0xf];
+                        i >>= 4;
+                        out[0] = hexlist[i];
+                        out += 2;
+                } else
+                        *out++ = hexlist[i];
+        }
+        *out = 0;
+        return(obuf + 1);
+}