r23209: import getnameinfo.c, inet_ntop.c and inet_pton.c from

loikeet-heimdal

metze
(This used to be commit 48eb20199e7a01f4ab7f5194a5256ad7dd03ad86)

3 files changed, 309 insertions, 0 deletions

diff --git a/source4/heimdal/lib/roken/getnameinfo.c b/source4/heimdal/lib/roken/getnameinfo.c
new file mode 100644
index 0000000000..2cf81897f8
--- /dev/null
+++ b/source4/heimdal/lib/roken/getnameinfo.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 1999 - 2001 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * 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. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+RCSID("$Id: getnameinfo.c,v 1.6 2005/06/16 16:53:09 lha Exp $");
+#endif
+
+#include "roken.h"
+
+static int
+doit (int af,
+      const void *addr,
+      size_t addrlen,
+      int port,
+      char *host, size_t hostlen,
+      char *serv, size_t servlen,
+      int flags)
+{
+    if (host != NULL) {
+	if (flags & NI_NUMERICHOST) {
+	    if (inet_ntop (af, addr, host, hostlen) == NULL)
+		return EAI_SYSTEM;
+	} else {
+	    struct hostent *he = gethostbyaddr (addr,
+						addrlen,
+						af);
+	    if (he != NULL) {
+		strlcpy (host, hostent_find_fqdn(he), hostlen);
+		if (flags & NI_NOFQDN) {
+		    char *dot = strchr (host, '.');
+		    if (dot != NULL)
+			*dot = '\0';
+		}
+	    } else if (flags & NI_NAMEREQD) {
+		return EAI_NONAME;
+	    } else if (inet_ntop (af, addr, host, hostlen) == NULL)
+		return EAI_SYSTEM;
+	}
+    }
+
+    if (serv != NULL) {
+	if (flags & NI_NUMERICSERV) {
+	    snprintf (serv, servlen, "%u", ntohs(port));
+	} else {
+	    const char *proto = "tcp";
+	    struct servent *se;
+
+	    if (flags & NI_DGRAM)
+		proto = "udp";
+
+	    se = getservbyport (port, proto);
+	    if (se == NULL) {
+		snprintf (serv, servlen, "%u", ntohs(port));
+	    } else {
+		strlcpy (serv, se->s_name, servlen);
+	    }
+	}
+    }
+    return 0;
+}
+
+/*
+ *
+ */
+
+int ROKEN_LIB_FUNCTION
+getnameinfo(const struct sockaddr *sa, socklen_t salen,
+	    char *host, size_t hostlen,
+	    char *serv, size_t servlen,
+	    int flags)
+{
+    switch (sa->sa_family) {
+#ifdef HAVE_IPV6
+    case AF_INET6 : {
+	const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sa;
+
+	return doit (AF_INET6, &sin6->sin6_addr, sizeof(sin6->sin6_addr),
+		     sin6->sin6_port,
+		     host, hostlen,
+		     serv, servlen,
+		     flags);
+    }
+#endif
+    case AF_INET : {
+	const struct sockaddr_in *sin4 = (const struct sockaddr_in *)sa;
+
+	return doit (AF_INET, &sin4->sin_addr, sizeof(sin4->sin_addr),
+		     sin4->sin_port,
+		     host, hostlen,
+		     serv, servlen,
+		     flags);
+    }
+    default :
+	return EAI_FAMILY;
+    }
+}
diff --git a/source4/heimdal/lib/roken/inet_ntop.c b/source4/heimdal/lib/roken/inet_ntop.c
new file mode 100644
index 0000000000..35e96eb49b
--- /dev/null
+++ b/source4/heimdal/lib/roken/inet_ntop.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 1999 - 2001 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * 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. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+RCSID("$Id: inet_ntop.c,v 1.6 2005/04/12 11:28:52 lha Exp $");
+#endif
+
+#include <roken.h>
+
+/*
+ *
+ */
+
+static const char *
+inet_ntop_v4 (const void *src, char *dst, size_t size)
+{
+    const char digits[] = "0123456789";
+    int i;
+    struct in_addr *addr = (struct in_addr *)src;
+    u_long a = ntohl(addr->s_addr);
+    const char *orig_dst = dst;
+
+    if (size < INET_ADDRSTRLEN) {
+	errno = ENOSPC;
+	return NULL;
+    }
+    for (i = 0; i < 4; ++i) {
+	int n = (a >> (24 - i * 8)) & 0xFF;
+	int non_zerop = 0;
+
+	if (non_zerop || n / 100 > 0) {
+	    *dst++ = digits[n / 100];
+	    n %= 100;
+	    non_zerop = 1;
+	}
+	if (non_zerop || n / 10 > 0) {
+	    *dst++ = digits[n / 10];
+	    n %= 10;
+	    non_zerop = 1;
+	}
+	*dst++ = digits[n];
+	if (i != 3)
+	    *dst++ = '.';
+    }
+    *dst++ = '\0';
+    return orig_dst;
+}
+
+#ifdef HAVE_IPV6
+static const char *
+inet_ntop_v6 (const void *src, char *dst, size_t size)
+{
+    const char xdigits[] = "0123456789abcdef";
+    int i;
+    const struct in6_addr *addr = (struct in6_addr *)src;
+    const u_char *ptr = addr->s6_addr;
+    const char *orig_dst = dst;
+
+    if (size < INET6_ADDRSTRLEN) {
+	errno = ENOSPC;
+	return NULL;
+    }
+    for (i = 0; i < 8; ++i) {
+	int non_zerop = 0;
+
+	if (non_zerop || (ptr[0] >> 4)) {
+	    *dst++ = xdigits[ptr[0] >> 4];
+	    non_zerop = 1;
+	}
+	if (non_zerop || (ptr[0] & 0x0F)) {
+	    *dst++ = xdigits[ptr[0] & 0x0F];
+	    non_zerop = 1;
+	}
+	if (non_zerop || (ptr[1] >> 4)) {
+	    *dst++ = xdigits[ptr[1] >> 4];
+	    non_zerop = 1;
+	}
+	*dst++ = xdigits[ptr[1] & 0x0F];
+	if (i != 7)
+	    *dst++ = ':';
+	ptr += 2;
+    }
+    *dst++ = '\0';
+    return orig_dst;
+}
+#endif /* HAVE_IPV6 */
+
+const char * ROKEN_LIB_FUNCTION
+inet_ntop(int af, const void *src, char *dst, size_t size)
+{
+    switch (af) {
+    case AF_INET :
+	return inet_ntop_v4 (src, dst, size);
+#ifdef HAVE_IPV6
+    case AF_INET6 :
+	return inet_ntop_v6 (src, dst, size);
+#endif
+    default :
+	errno = EAFNOSUPPORT;
+	return NULL;
+    }
+}
diff --git a/source4/heimdal/lib/roken/inet_pton.c b/source4/heimdal/lib/roken/inet_pton.c
new file mode 100644
index 0000000000..21606accb1
--- /dev/null
+++ b/source4/heimdal/lib/roken/inet_pton.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 1999 - 2000 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * 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. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+RCSID("$Id: inet_pton.c,v 1.4 2005/04/12 11:28:52 lha Exp $");
+#endif
+
+#include <roken.h>
+
+int ROKEN_LIB_FUNCTION
+inet_pton(int af, const char *src, void *dst)
+{
+    if (af != AF_INET) {
+	errno = EAFNOSUPPORT;
+	return -1;
+    }
+    return inet_aton (src, dst);
+}