1 files changed, 109 insertions, 0 deletions

diff --git a/src/lib/libc/net/nsap_addr.c b/src/lib/libc/net/nsap_addr.c
new file mode 100644
index 0000000000..22a5f8d66e
--- /dev/null
+++ b/src/lib/libc/net/nsap_addr.c
@@ -0,0 +1,109 @@
+/*      $OpenBSD: nsap_addr.c,v 1.4 1997/07/09 01:08:45 millert Exp $   */
+
+/*
+ * Copyright (c) 1996 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char rcsid[] = "$From: nsap_addr.c,v 8.3 1996/08/05 08:31:35 vixie Exp $";
+#else
+static char rcsid[] = "$OpenBSD: nsap_addr.c,v 1.4 1997/07/09 01:08:45 millert Exp $";
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/nameser.h>
+#include <ctype.h>
+#include <resolv.h>
+
+static char
+xtob(c)
+        register int c;
+{
+        return (c - (((c >= '0') && (c <= '9')) ? '0' : '7'));
+}
+
+u_int
+inet_nsap_addr(ascii, binary, maxlen)
+        const char *ascii;
+        u_char *binary;
+        int maxlen;
+{
+        register u_char c, nib;
+        u_int len = 0;
+
+        while ((c = *ascii++) != '\0' && len < maxlen) {
+                if (c == '.' || c == '+' || c == '/')
+                        continue;
+                if (!isascii(c))
+                        return (0);
+                if (islower(c))
+                        c = toupper(c);
+                if (isxdigit(c)) {
+                        nib = xtob(c);
+                        if ((c = *ascii++)) {
+                                c = toupper(c);
+                                if (isxdigit(c)) {
+                                        *binary++ = (nib << 4) | xtob(c);
+                                        len++;
+                                } else
+                                        return (0);
+                        }
+                        else
+                                return (0);
+                }
+                else
+                        return (0);
+        }
+        return (len);
+}
+
+char *
+inet_nsap_ntoa(binlen, binary, ascii)
+        int binlen;
+        register const u_char *binary;
+        register char *ascii;
+{
+        register int nib;
+        int i;
+        static char tmpbuf[255*3];
+        char *start;
+
+        if (ascii)
+                start = ascii;
+        else {
+                ascii = tmpbuf;
+                start = tmpbuf;
+        }
+
+        if (binlen > 255)
+                binlen = 255;
+
+        for (i = 0; i < binlen; i++) {
+                nib = *binary >> 4;
+                *ascii++ = nib + (nib < 10 ? '0' : '7');
+                nib = *binary++ & 0x0f;
+                *ascii++ = nib + (nib < 10 ? '0' : '7');
+                if (((i % 2) == 0 && (i + 1) < binlen))
+                        *ascii++ = '.';
+        }
+        *ascii = '\0';
+        return (start);
+}