add initial support for the crisarchitecture used on foxboards to openwrt

[openwrt/svn-archive/archive.git] / target / linux / etrax-2.6 / image / e100boot / src / libpcap-0.4 / pcap.c

diff --git a/target/linux/etrax-2.6/image/e100boot/src/libpcap-0.4/pcap.c b/target/linux/etrax-2.6/image/e100boot/src/libpcap-0.4/pcap.c
new file mode 100644 (file)
index 0000000..31560b7
--- /dev/null
+++ b/target/linux/etrax-2.6/image/e100boot/src/libpcap-0.4/pcap.c
@@ -0,0 +1,206 @@
+/*
+ * Copyright (c) 1993, 1994, 1995, 1996, 1997, 1998
+ *     The Regents of the University of California.  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 Computer Systems
+ *     Engineering Group at Lawrence Berkeley Laboratory.
+ * 4. Neither the name of the University nor of the Laboratory may be used
+ *    to endorse or promote products derived from this software without
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ */
+
+#ifndef lint
+static const char rcsid[] =
+    "@(#) $Header: /usr/local/cvs/linux/tools/build/e100boot/libpcap-0.4/pcap.c,v 1.1 1999/08/26 10:05:26 johana Exp $ (LBL)";
+#endif
+
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "gnuc.h"
+#ifdef HAVE_OS_PROTO_H
+#include "os-proto.h"
+#endif
+
+#include "pcap-int.h"
+
+int
+pcap_dispatch(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
+{
+
+       if (p->sf.rfile != NULL)
+               return (pcap_offline_read(p, cnt, callback, user));
+       return (pcap_read(p, cnt, callback, user));
+}
+
+int
+pcap_loop(pcap_t *p, int cnt, pcap_handler callback, u_char *user)
+{
+       register int n;
+
+       for (;;) {
+               if (p->sf.rfile != NULL)
+                       n = pcap_offline_read(p, cnt, callback, user);
+               else {
+                       /*
+                        * XXX keep reading until we get something
+                        * (or an error occurs)
+                        */
+                       do {
+                               n = pcap_read(p, cnt, callback, user);
+                       } while (n == 0);
+               }
+               if (n <= 0)
+                       return (n);
+               if (cnt > 0) {
+                       cnt -= n;
+                       if (cnt <= 0)
+                               return (0);
+               }
+       }
+}
+
+struct singleton {
+       struct pcap_pkthdr *hdr;
+       const u_char *pkt;
+};
+
+
+static void
+pcap_oneshot(u_char *userData, const struct pcap_pkthdr *h, const u_char *pkt)
+{
+       struct singleton *sp = (struct singleton *)userData;
+       *sp->hdr = *h;
+       sp->pkt = pkt;
+}
+
+const u_char *
+pcap_next(pcap_t *p, struct pcap_pkthdr *h)
+{
+       struct singleton s;
+
+       s.hdr = h;
+       if (pcap_dispatch(p, 1, pcap_oneshot, (u_char*)&s) <= 0)
+               return (0);
+       return (s.pkt);
+}
+
+int
+pcap_datalink(pcap_t *p)
+{
+       return (p->linktype);
+}
+
+int
+pcap_snapshot(pcap_t *p)
+{
+       return (p->snapshot);
+}
+
+int
+pcap_is_swapped(pcap_t *p)
+{
+       return (p->sf.swapped);
+}
+
+int
+pcap_major_version(pcap_t *p)
+{
+       return (p->sf.version_major);
+}
+
+int
+pcap_minor_version(pcap_t *p)
+{
+       return (p->sf.version_minor);
+}
+
+FILE *
+pcap_file(pcap_t *p)
+{
+       return (p->sf.rfile);
+}
+
+int
+pcap_fileno(pcap_t *p)
+{
+       return (p->fd);
+}
+
+void
+pcap_perror(pcap_t *p, char *prefix)
+{
+       fprintf(stderr, "%s: %s\n", prefix, p->errbuf);
+}
+
+char *
+pcap_geterr(pcap_t *p)
+{
+       return (p->errbuf);
+}
+
+/*
+ * Not all systems have strerror().
+ */
+char *
+pcap_strerror(int errnum)
+{
+#ifdef HAVE_STRERROR
+       return (strerror(errnum));
+#else
+       extern int sys_nerr;
+       extern const char *const sys_errlist[];
+       static char ebuf[20];
+
+       if ((unsigned int)errnum < sys_nerr)
+               return ((char *)sys_errlist[errnum]);
+       (void)sprintf(ebuf, "Unknown error: %d", errnum);
+       return(ebuf);
+#endif
+}
+
+void
+pcap_close(pcap_t *p)
+{
+       /*XXX*/
+       if (p->fd >= 0)
+               close(p->fd);
+       if (p->sf.rfile != NULL) {
+               (void)fclose(p->sf.rfile);
+               if (p->sf.base != NULL)
+                       free(p->sf.base);
+       } else if (p->buffer != NULL)
+               free(p->buffer);
+#ifdef linux
+       if (p->md.device != NULL)
+               free(p->md.device);
+#endif
+       
+       free(p);
+}