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authormarkm <markm@FreeBSD.org>1997-09-04 06:04:33 +0000
committermarkm <markm@FreeBSD.org>1997-09-04 06:04:33 +0000
commita8a89cfaf983bc64f4b42f7c35209a5a36dd0fe8 (patch)
tree0b84977f19022a965f8c6145f067f951173f6290 /crypto/kerberosIV/lib/krb/getaddrs.c
downloadFreeBSD-src-a8a89cfaf983bc64f4b42f7c35209a5a36dd0fe8.zip
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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.
Diffstat (limited to 'crypto/kerberosIV/lib/krb/getaddrs.c')
-rw-r--r--crypto/kerberosIV/lib/krb/getaddrs.c130
1 files changed, 130 insertions, 0 deletions
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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