Libc-320.tar.gz

[apple/libc.git] / net / FreeBSD / nsap_addr.c

diff --git a/net/FreeBSD/nsap_addr.c b/net/FreeBSD/nsap_addr.c
new file mode 100644 (file)
index 0000000..8fc9d26
--- /dev/null
+++ b/net/FreeBSD/nsap_addr.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 1996, 1998 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/lib/libc/net/nsap_addr.c,v 1.9 2002/03/22 21:52:29 obrien Exp $");
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+#include <ctype.h>
+#include <resolv.h>
+
+static char
+xtob(c)
+       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;
+{
+       u_char c, nib;
+       u_int len = 0;
+
+       while ((c = *ascii++) != '\0' && len < (u_int)maxlen) {
+               if (c == '.' || c == '+' || c == '/')
+                       continue;
+               if (!isascii(c))
+                       return (0);
+               if (islower(c))
+                       c = toupper(c);
+               if (isxdigit(c)) {
+                       nib = xtob(c);
+                       c = *ascii++;
+                       if (c != '\0') {
+                               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;
+       const u_char *binary;
+       char *ascii;
+{
+       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);
+}
+
+/*
+ * Weak aliases for applications that use certain private entry points,
+ * and fail to include <arpa/inet.h>.
+ */
+#undef inet_nsap_addr
+__weak_reference(__inet_nsap_addr, inet_nsap_addr);
+#undef inet_nsap_ntoa
+__weak_reference(__inet_nsap_ntoa, inet_nsap_ntoa);