From a8a89cfaf983bc64f4b42f7c35209a5a36dd0fe8 Mon Sep 17 00:00:00 2001
From: markm <markm@FreeBSD.org>
Date: Thu, 4 Sep 1997 06:04:33 +0000
Subject: Initial import of KTH eBones. This has been cleaned up to only
 include the "core" Kerberos functionality. The rest of the userland will get
 their own changes later.

---
 crypto/kerberosIV/lib/krb/getaddrs.c | 130 +++++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 crypto/kerberosIV/lib/krb/getaddrs.c

(limited to 'crypto/kerberosIV/lib/krb/getaddrs.c')

diff --git a/crypto/kerberosIV/lib/krb/getaddrs.c b/crypto/kerberosIV/lib/krb/getaddrs.c
new file mode 100644
index 0000000..d25ec1b
--- /dev/null
+++ b/crypto/kerberosIV/lib/krb/getaddrs.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 1995, 1996, 1997 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the Kungliga Tekniska
+ *      Högskolan and its contributors.
+ * 
+ * 4. 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.
+ */
+
+#include "krb_locl.h"
+
+RCSID("$Id: getaddrs.c,v 1.19 1997/04/01 08:18:29 joda Exp $");
+
+#if defined(HAVE_SYS_IOCTL_H) && SunOS != 4
+#include <sys/ioctl.h>
+#endif
+#ifdef HAVE_NET_IF_H
+#include <net/if.h>
+#endif
+
+#ifdef HAVE_SYS_SOCKIO_H
+#include <sys/sockio.h>
+#endif /* HAVE_SYS_SOCKIO_H */
+
+/*
+ * Return number and list of all local adresses.
+ */
+
+int
+k_get_all_addrs (struct in_addr **l)
+{
+#if !defined(SIOCGIFCONF) || !defined(SIOCGIFFLAGS) || !defined(SIOCGIFADDR)
+     char name[MaxHostNameLen];
+     struct hostent *he;
+
+     if (k_gethostname(name, sizeof(name)) < 0)
+	  return -1;
+     he = gethostbyname (name);
+     if (he == NULL)
+	  return -1;
+     *l = malloc(sizeof(**l));
+     if (*l == NULL)
+	  return -1;
+     memcpy (*l, he->h_addr_list[0], sizeof(*l));
+     return 1;
+#else
+     int fd;
+     char buf[BUFSIZ];
+     struct ifreq ifreq;
+     struct ifconf ifconf;
+     int num, j;
+     char *p;
+
+     fd = socket(AF_INET, SOCK_DGRAM, 0);
+     if (fd < 0)
+	  return -1;
+
+     ifconf.ifc_len = sizeof(buf);
+     ifconf.ifc_buf = buf;
+     if(ioctl(fd, SIOCGIFCONF, &ifconf) < 0)
+	  return -1;
+     num = ifconf.ifc_len / sizeof(struct ifreq);
+     *l = malloc(num * sizeof(struct in_addr));
+     if(*l == NULL) {
+	  close (fd);
+	  return -1;
+     }
+
+     j = 0;
+     ifreq.ifr_name[0] = '\0';
+     for (p = ifconf.ifc_buf; p < ifconf.ifc_buf + ifconf.ifc_len;) {
+          struct ifreq *ifr = (struct ifreq *)p;
+#ifdef SOCKADDR_HAS_SA_LEN
+	  size_t sz = sizeof(ifr->ifr_name) + ifr->ifr_addr.sa_len;
+#else
+	  size_t sz = sizeof(*ifr);
+#endif
+	  if(strncmp(ifreq.ifr_name, ifr->ifr_name, sizeof(ifr->ifr_name))) {
+	       if(ioctl(fd, SIOCGIFFLAGS, ifr) < 0) {
+		    close (fd);
+		    free (*l);
+		    return -1;
+	       }
+	       if (ifr->ifr_flags & IFF_UP) {
+		    if(ioctl(fd, SIOCGIFADDR, ifr) < 0) {
+			 close (fd);
+			 free (*l);
+			 return -1;
+		    }
+		    (*l)[j++] = ((struct sockaddr_in *)&ifr->ifr_addr)->sin_addr;
+	       }
+	       ifreq = *ifr;
+	  }
+	  p = p + sz;
+     }
+     if (j != num)
+	  *l = realloc (*l, j * sizeof(struct in_addr));
+     close (fd);
+     return j;
+#endif /* SIOCGIFCONF */
+}
-- 
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