This commit was generated by cvs2svn to compensate for changes in r72445,

which included commits to RCS files with non-trunk default branches.

1 files changed, 271 insertions, 0 deletions

diff --git a/crypto/heimdal/lib/roken/getifaddrs.c b/crypto/heimdal/lib/roken/getifaddrs.c
new file mode 100644
index 0000000..e8e3e54
--- /dev/null
+++ b/crypto/heimdal/lib/roken/getifaddrs.c
@@ -0,0 +1,271 @@
+/*
+ * Copyright (c) 2000 - 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: getifaddrs.c,v 1.4 2001/01/28 23:02:46 assar Exp $");
+#endif
+#include "roken.h"
+
+#ifdef __osf__
+/* hate */
+struct rtentry;
+struct mbuf;
+#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 */
+
+#ifdef HAVE_NETINET_IN6_VAR_H
+#include <netinet/in6_var.h>
+#endif /* HAVE_NETINET_IN6_VAR_H */
+
+#include <ifaddrs.h>
+
+static int
+getifaddrs2(struct ifaddrs **ifap, 
+	    int af, int siocgifconf, int siocgifflags,
+	    size_t ifreq_sz)
+{
+    int ret;
+    int fd;
+    size_t buf_size;
+    char *buf;
+    struct ifconf ifconf;
+    int num, j = 0;
+    char *p;
+    size_t sz;
+    struct sockaddr sa_zero;
+    struct ifreq *ifr;
+
+    struct ifaddrs *start,  **end = &start;
+
+    buf = NULL;
+
+    memset (&sa_zero, 0, sizeof(sa_zero));
+    fd = socket(af, SOCK_DGRAM, 0);
+    if (fd < 0)
+	return -1;
+
+    buf_size = 8192;
+    for (;;) {
+	buf = calloc(1, buf_size);
+	if (buf == NULL) {
+	    ret = ENOMEM;
+	    goto error_out;
+	}
+	ifconf.ifc_len = buf_size;
+	ifconf.ifc_buf = buf;
+
+	/*
+	 * Solaris returns EINVAL when the buffer is too small.
+	 */
+	if (ioctl (fd, siocgifconf, &ifconf) < 0 && errno != EINVAL) {
+	    ret = errno;
+	    goto error_out;
+	}
+	/*
+	 * Can the difference between a full and a overfull buf
+	 * be determined?
+	 */
+
+	if (ifconf.ifc_len < buf_size)
+	    break;
+	free (buf);
+	buf_size *= 2;
+    }
+
+    num = ifconf.ifc_len / ifreq_sz;
+    j = 0;
+    for (p = ifconf.ifc_buf;
+	 p < ifconf.ifc_buf + ifconf.ifc_len;
+	 p += sz) {
+	struct ifreq ifreq;
+	struct sockaddr *sa;
+	size_t salen;
+
+	ifr = (struct ifreq *)p;
+	sa  = &ifr->ifr_addr;
+
+	sz = ifreq_sz;
+	salen = sizeof(struct sockaddr);
+#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
+	salen = sa->sa_len;
+	sz = max(sz, sizeof(ifr->ifr_name) + sa->sa_len);
+#endif
+#ifdef SA_LEN
+	salen = SA_LEN(sa);
+	sz = max(sz, sizeof(ifr->ifr_name) + SA_LEN(sa));
+#endif
+	memset (&ifreq, 0, sizeof(ifreq));
+	memcpy (ifreq.ifr_name, ifr->ifr_name, sizeof(ifr->ifr_name));
+
+	if (ioctl(fd, siocgifflags, &ifreq) < 0) {
+	    ret = errno;
+	    goto error_out;
+	}
+
+	*end = malloc(sizeof(**end));
+
+	(*end)->ifa_next = NULL;
+	(*end)->ifa_name = strdup(ifr->ifr_name);
+	(*end)->ifa_flags = ifreq.ifr_flags;
+	(*end)->ifa_addr = malloc(salen);
+	memcpy((*end)->ifa_addr, sa, salen);
+	(*end)->ifa_netmask = NULL;
+
+#if 0
+	/* fix these when we actually need them */
+	if(ifreq.ifr_flags & IFF_BROADCAST) {
+	    (*end)->ifa_broadaddr = malloc(sizeof(ifr->ifr_broadaddr));
+	    memcpy((*end)->ifa_broadaddr, &ifr->ifr_broadaddr, 
+		   sizeof(ifr->ifr_broadaddr));
+	} else if(ifreq.ifr_flags & IFF_POINTOPOINT) {
+	    (*end)->ifa_dstaddr = malloc(sizeof(ifr->ifr_dstaddr));
+	    memcpy((*end)->ifa_dstaddr, &ifr->ifr_dstaddr, 
+		   sizeof(ifr->ifr_dstaddr));
+	} else
+	    (*end)->ifa_dstaddr = NULL;
+#else
+	    (*end)->ifa_dstaddr = NULL;
+#endif
+
+	(*end)->ifa_data = NULL;
+
+	end = &(*end)->ifa_next;
+	
+    }
+    *ifap = start;
+    free(buf);
+    return 0;
+  error_out:
+    free(buf);
+    errno = ret;
+    return -1;
+}
+
+int
+getifaddrs(struct ifaddrs **ifap) 
+{
+    int ret = -1;
+    errno = ENXIO;
+#if defined(AF_INET6) && defined(SIOCGIF6CONF) && defined(SIOCGIF6FLAGS)
+    if (ret)
+	ret = getifaddrs2 (ifap, AF_INET6, SIOCGIF6CONF, SIOCGIF6FLAGS,
+			   sizeof(struct in6_ifreq));
+#endif
+#if defined(HAVE_IPV6) && defined(SIOCGIFCONF)
+    if (ret)
+	ret = getifaddrs2 (ifap, AF_INET6, SIOCGIFCONF, SIOCGIFFLAGS,
+			   sizeof(struct ifreq));
+#endif
+#if defined(AF_INET) && defined(SIOCGIFCONF) && defined(SIOCGIFFLAGS)
+    if (ret)
+	ret = getifaddrs2 (ifap, AF_INET, SIOCGIFCONF, SIOCGIFFLAGS,
+			   sizeof(struct ifreq));
+#endif
+    return ret;
+}
+
+void
+freeifaddrs(struct ifaddrs *ifp)
+{
+    struct ifaddrs *p, *q;
+    
+    for(p = ifp; p; ) {
+	free(p->ifa_name);
+	if(p->ifa_addr)
+	    free(p->ifa_addr);
+	if(p->ifa_dstaddr) 
+	    free(p->ifa_dstaddr);
+	if(p->ifa_netmask) 
+	    free(p->ifa_netmask);
+	if(p->ifa_data)
+	    free(p->ifa_data);
+	q = p;
+	p = p->ifa_next;
+	free(q);
+    }
+}
+
+#ifdef TEST
+
+void
+print_addr(const char *s, struct sockaddr *sa)
+{
+    int i;
+    printf("  %s=%d/", s, sa->sa_family);
+#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
+    for(i = 0; i < sa->sa_len - ((long)sa->sa_data - (long)&sa->sa_family); i++)
+	printf("%02x", ((unsigned char*)sa->sa_data)[i]);
+#else
+    for(i = 0; i < sizeof(sa->sa_data); i++) 
+	printf("%02x", ((unsigned char*)sa->sa_data)[i]);
+#endif
+    printf("\n");
+}
+
+void 
+print_ifaddrs(struct ifaddrs *x)
+{
+    struct ifaddrs *p;
+    
+    for(p = x; p; p = p->ifa_next) {
+	printf("%s\n", p->ifa_name);
+	printf("  flags=%x\n", p->ifa_flags);
+	if(p->ifa_addr)
+	    print_addr("addr", p->ifa_addr);
+	if(p->ifa_dstaddr) 
+	    print_addr("dstaddr", p->ifa_dstaddr);
+	if(p->ifa_netmask) 
+	    print_addr("netmask", p->ifa_netmask);
+	printf("  %p\n", p->ifa_data);
+    }
+}
+
+int
+main()
+{
+    struct ifaddrs *a = NULL, *b;
+    getifaddrs2(&a, AF_INET, SIOCGIFCONF, SIOCGIFFLAGS, sizeof(struct ifreq));
+    print_ifaddrs(a);
+    printf("---\n");
+    getifaddrs(&b);
+    print_ifaddrs(b);
+    return 0;
+}
+#endif