Libc-498.tar.gz

[apple/libc.git] / net / inet_neta-fbsd.c

diff --git a/net/inet_neta-fbsd.c b/net/inet_neta-fbsd.c
new file mode 100644 (file)
index 0000000..43b4af1
--- /dev/null
+++ b/net/inet_neta-fbsd.c
@@ -0,0 +1,92 @@
+/*
+ * 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)
+static const char orig_rcsid[] = "From Id: inet_neta.c,v 8.2 1996/08/08 06:54:44 vixie Exp";
+#endif
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/lib/libc/net/inet_neta.c,v 1.9 2003/01/01 18:48:43 schweikh Exp $");
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+#ifdef SPRINTF_CHAR
+# define SPRINTF(x) strlen(sprintf/**/x)
+#else
+# define SPRINTF(x) ((size_t)sprintf x)
+#endif
+
+/*
+ * char *
+ * inet_neta(src, dst, size)
+ *     format an in_addr_t network number into presentation format.
+ * return:
+ *     pointer to dst, or NULL if an error occurred (check errno).
+ * note:
+ *     format of ``src'' is as for inet_network().
+ * author:
+ *     Paul Vixie (ISC), July 1996
+ */
+char *
+inet_neta(src, dst, size)
+       in_addr_t src;
+       char *dst;
+       size_t size;
+{
+       char *odst = dst;
+       char *tp;
+
+       while (src & 0xffffffff) {
+               u_char b = (src & 0xff000000) >> 24;
+
+               src <<= 8;
+               if (b) {
+                       if (size < sizeof "255.")
+                               goto emsgsize;
+                       tp = dst;
+                       dst += SPRINTF((dst, "%u", b));
+                       if (src != 0L) {
+                               *dst++ = '.';
+                               *dst = '\0';
+                       }
+                       size -= (size_t)(dst - tp);
+               }
+       }
+       if (dst == odst) {
+               if (size < sizeof "0.0.0.0")
+                       goto emsgsize;
+               strcpy(dst, "0.0.0.0");
+       }
+       return (odst);
+
+ emsgsize:
+       errno = EMSGSIZE;
+       return (NULL);
+}
+
+/*
+ * Weak aliases for applications that use certain private entry points,
+ * and fail to include <arpa/inet.h>.
+ */
+#undef inet_neta
+__weak_reference(__inet_neta, inet_neta);