Move libnet/ content to top of git repo

1. Moved scripts into libnet/scripts/, moved debian/ into libnet/,
and other top-level content into libnet/.
2. Moved libnet/* up to ./

1 files changed, 135 insertions, 0 deletions

diff --git a/src/libnet_build_dhcp.c b/src/libnet_build_dhcp.c
new file mode 100644
index 0000000..0fc49fa
--- /dev/null
+++ b/src/libnet_build_dhcp.c
@@ -0,0 +1,135 @@
+/*
+ *  $Id: libnet_build_dhcp.c,v 1.10 2004/03/01 20:26:12 mike Exp $
+ *
+ *  libnet
+ *  libnet_build_dhcp.c - DHCP/BOOTP packet assembler
+ *
+ *  Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>
+ *  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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 "common.h"
+
+libnet_ptag_t
+libnet_build_dhcpv4(uint8_t opcode, uint8_t htype, uint8_t hlen, 
+uint8_t hopcount, uint32_t xid, uint16_t secs, uint16_t flags,
+uint32_t cip, uint32_t yip, uint32_t sip, uint32_t gip, const uint8_t *chaddr,
+const char *sname, const char *file, const uint8_t *payload, uint32_t payload_s,
+libnet_t *l, libnet_ptag_t ptag)
+{
+    uint32_t n, h;
+    libnet_pblock_t *p; 
+    struct libnet_dhcpv4_hdr dhcp_hdr;
+
+    if (l == NULL)
+    { 
+        return (-1);
+    } 
+
+    n = LIBNET_DHCPV4_H + payload_s;
+    h = 0;          /* no checksum */
+ 
+    /*
+     *  Find the existing protocol block if a ptag is specified, or create
+     *  a new one.
+     */
+    p = libnet_pblock_probe(l, ptag, n, LIBNET_PBLOCK_DHCPV4_H);
+    if (p == NULL)
+    {
+        return (-1);
+    }
+
+    memset(&dhcp_hdr, 0, sizeof(dhcp_hdr));
+    dhcp_hdr.dhcp_opcode    = opcode;
+    dhcp_hdr.dhcp_htype     = htype;
+    dhcp_hdr.dhcp_hlen      = hlen;
+    dhcp_hdr.dhcp_hopcount  = hopcount;
+    dhcp_hdr.dhcp_xid       = htonl(xid);
+    dhcp_hdr.dhcp_secs      = htons(secs);
+    dhcp_hdr.dhcp_flags     = htons(flags);
+    dhcp_hdr.dhcp_cip       = htonl(cip);
+    dhcp_hdr.dhcp_yip       = htonl(yip);
+    dhcp_hdr.dhcp_sip       = htonl(sip);
+    dhcp_hdr.dhcp_gip       = htonl(gip);
+
+    if (chaddr)
+    {
+        size_t n = sizeof (dhcp_hdr.dhcp_chaddr);
+        if (hlen < n)
+            n = hlen;
+        memcpy(dhcp_hdr.dhcp_chaddr, chaddr, n);
+    }
+    if (sname)
+    { 
+        strncpy(dhcp_hdr.dhcp_sname, sname, sizeof (dhcp_hdr.dhcp_sname) - 1);
+    }
+    if (file)
+    {
+        strncpy(dhcp_hdr.dhcp_file, file, sizeof (dhcp_hdr.dhcp_file) - 1);
+    }
+    dhcp_hdr.dhcp_magic = htonl(DHCP_MAGIC);
+
+    n = libnet_pblock_append(l, p, (uint8_t *)&dhcp_hdr, LIBNET_DHCPV4_H);
+    if (n == -1)
+    {
+        goto bad;
+    }
+
+    if (payload_s && !payload)
+    {
+         snprintf(l->err_buf, LIBNET_ERRBUF_SIZE,
+                 "%s(): payload inconsistency", __func__);
+        goto bad;
+    }
+ 
+    if (payload_s)
+    {
+        n = libnet_pblock_append(l, p, payload, payload_s);
+        if (n == -1)
+        {
+            goto bad;
+        }
+    }
+ 
+    return (ptag ? ptag : libnet_pblock_update(l, p, h, 
+            LIBNET_PBLOCK_DHCPV4_H));
+bad:
+    libnet_pblock_delete(l, p);
+    return (-1);
+}
+
+libnet_ptag_t
+libnet_build_bootpv4(uint8_t opcode, uint8_t htype, uint8_t hlen,
+uint8_t hopcount, uint32_t xid, uint16_t secs, uint16_t flags,
+uint32_t cip, uint32_t yip, uint32_t sip, uint32_t gip, const uint8_t *chaddr,
+const char *sname, const char *file, const uint8_t *payload, uint32_t payload_s,
+libnet_t *l, libnet_ptag_t ptag)
+{
+    return (libnet_build_dhcpv4(opcode, htype, hlen, hopcount, xid, secs,
+        flags, cip, yip, sip, gip, chaddr, sname, file, payload, payload_s, 
+        l, ptag));
+}
+
+/* EOF */