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[openwrt.git] / openwrt / package / dsniff / patches / gdbm.patch

diff -Nur dsniff-2.3/configure dsniff-2.3.patched/configure
--- dsniff-2.3/configure        2005-06-11 18:13:59.000000000 +0200
+++ dsniff-2.3.patched/configure        2005-06-11 18:14:37.000000000 +0200
@@ -16,6 +16,8 @@
 ac_help="$ac_help
   --with-db=DIR           use Berkeley DB (with --enable-compat185) in DIR"
 ac_help="$ac_help
+  --with-gdbm=DIR         use GNU DBM in DIR"
+ac_help="$ac_help
   --with-libpcap=DIR      use libpcap in DIR"
 ac_help="$ac_help
   --with-libnet=DIR       use libnet in DIR"
@@ -3051,7 +3053,40 @@
 
 fi
 
+echo $ac_n "checking for libgdbm""... $ac_c" 1>&6
+echo "configure:3059: checking for libgdbm" >&5
+# Check whether --with-gdbm or --without-gdbm was given.
+if test "${with_gdbm+set}" = set; then
+  withval="$with_gdbm"
+   case "$withval" in
+  yes|no)
+     echo "$ac_t""no" 1>&6
+     ;;
+  *)
+     echo "$ac_t""$withval" 1>&6
+     if test -f $withval/include/gdbm.h -a -f $withval/lib/libgdbm.a; then
+        owd=`pwd`
+        if cd $withval; then withval=`pwd`; cd $owd; fi
+       DBINC="-I$withval/include"
+       DBLIB="-L$withval/lib -lgdbm"
+     else
+        { echo "configure: error: gdbm.h or libgdbm.a not found in $withval" 1>&2; exit 1; }
+     fi
+     ;;
+  esac 
+else
+   if test -f ${prefix}/include/gdbm.h; then
+     LNETINC="-I${prefix}/include"
+     LNETLIB="-L${prefix}/lib -lgdbm"
+  elif test -f /usr/include/gdbm.h; then
+     LNETLIB="-lgdbm"
+  else
+     echo "$ac_t""no" 1>&6
+     { echo "configure: error: libgdbm not found" 1>&2; exit 1; }
+  fi
+  echo "$ac_t""yes" 1>&6 
 
+fi
 
 
 echo $ac_n "checking for libnet""... $ac_c" 1>&6
diff -Nur dsniff-2.3/record.c dsniff-2.3.patched/record.c
--- dsniff-2.3/record.c 2000-11-14 16:51:02.000000000 +0100
+++ dsniff-2.3.patched/record.c 2005-06-11 18:14:56.000000000 +0200
@@ -13,12 +13,7 @@
 #include <stdio.h>
 #include <time.h>
 #include <md5.h>
-#ifdef HAVE_DB_185_H
-#define DB_LIBRARY_COMPATIBILITY_API
-#include <db_185.h>
-#elif HAVE_DB_H
-#include <db.h>
-#endif
+#include <gdbm.h>
 #include <libnet.h>
 #include "options.h"
 #include "record.h"
@@ -34,7 +29,7 @@
        struct netobj   data;
 };
        
-static DB *db;
+GDBM_FILE dbf;
 
 static int
 xdr_rec(XDR *xdrs, struct rec *rec)
@@ -61,7 +56,6 @@
        
        tm = localtime(&rec->time);
        strftime(tstr, sizeof(tstr), "%x %X", tm);
-       
        srcp = libnet_host_lookup(rec->src, Opt_dns);
        dstp = libnet_host_lookup(rec->dst, Opt_dns);
 
@@ -86,10 +80,10 @@
        fflush(stdout);
 }
 
-static DBT *
+static datum
 record_hash(struct rec *rec)
 {
-       static DBT key;
+       static datum key;
        static u_char hash[16];
        MD5_CTX ctx;
 
@@ -102,16 +96,16 @@
        MD5Update(&ctx, rec->data.n_bytes, rec->data.n_len);
        MD5Final(hash, &ctx);
 
-       key.data = hash;
-       key.size = sizeof(hash);
+       key.dptr = hash;
+       key.dsize = sizeof(hash);
        
-       return (&key);
+       return (key);
 }
 
 static int
 record_save(struct rec *rec)
 {
-       DBT *key, data;
+       datum key, data;
        XDR xdrs;
        u_char buf[2048];
        
@@ -120,15 +114,15 @@
        if (!xdr_rec(&xdrs, rec))
                return (0);
        
-       data.data = buf;
-       data.size = xdr_getpos(&xdrs);
+       data.dptr = buf;
+       data.dsize = xdr_getpos(&xdrs);
        
        xdr_destroy(&xdrs);
 
        key = record_hash(rec);
        
-       if (db->put(db, key, &data, R_NOOVERWRITE) == 0)
-               db->sync(db, 0);
+       if (gdbm_store(dbf, key, data, GDBM_INSERT) == 0)
+               gdbm_sync(dbf);
        
        return (1);
 }
@@ -136,18 +130,22 @@
 void
 record_dump(void)
 {
-       DBT key, data;
+       datum nextkey, key, content;
        XDR xdrs;
        struct rec rec;
        
-       while (db->seq(db, &key, &data, R_NEXT) == 0) { 
+       key = gdbm_firstkey(dbf);
+       while (key.dptr) {      
+               nextkey = gdbm_nextkey(dbf, key);
+               content = gdbm_fetch(dbf, key);
                memset(&rec, 0, sizeof(rec));
-               xdrmem_create(&xdrs, data.data, data.size, XDR_DECODE);
-               
+               xdrmem_create(&xdrs, content.dptr, content.dsize, XDR_DECODE);
                if (xdr_rec(&xdrs, &rec)) {
                        record_print(&rec);
                }
                xdr_destroy(&xdrs);
+               free(key.dptr);
+               key = nextkey;
        }
 }
 
@@ -155,16 +153,23 @@
 record_init(char *file)
 {
        int flags, mode;
-       
+       // needed for gdbm_open, which does not have the option to create
+       // a database in memory
+       if(file == NULL) {
+               char *record_file = "/tmp/.dsniff.db";
+               file = record_file;
+       }
+
        if (Opt_read) {
-               flags = O_RDONLY;
+               flags = GDBM_READER;
                mode = 0;
        }
        else {
-               flags = O_RDWR|O_CREAT;
+               flags = GDBM_WRCREAT;
                mode = S_IRUSR|S_IWUSR;
        }
-       if ((db = dbopen(file, flags, mode, DB_BTREE, NULL)) == NULL)
+
+       if ((dbf = gdbm_open(file, 1024, flags, mode, NULL)) == NULL)
                return (0);
 
        return (1);
@@ -203,6 +208,6 @@
 void
 record_close(void)
 {
-       db->close(db);
+       gdbm_close(dbf);
 }