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[GNUnet-SVN] r15877 - in gnunet/src: include nat
From: |
gnunet |
Subject: |
[GNUnet-SVN] r15877 - in gnunet/src: include nat |
Date: |
Thu, 7 Jul 2011 17:32:31 +0200 |
Author: grothoff
Date: 2011-07-07 17:32:31 +0200 (Thu, 07 Jul 2011)
New Revision: 15877
Added:
gnunet/src/nat/nat_mini.c
Modified:
gnunet/src/include/gnunet_nat_lib.h
gnunet/src/nat/Makefile.am
Log:
adding code to get external IP from miniupnp tool
Modified: gnunet/src/include/gnunet_nat_lib.h
===================================================================
--- gnunet/src/include/gnunet_nat_lib.h 2011-07-07 15:06:33 UTC (rev 15876)
+++ gnunet/src/include/gnunet_nat_lib.h 2011-07-07 15:32:31 UTC (rev 15877)
@@ -186,6 +186,21 @@
GNUNET_NAT_test_stop (struct GNUNET_NAT_Test *tst);
+
+/**
+ * Try to get the external IPv4 address of this peer.
+ * Note: calling this function may block this process
+ * for a few seconds (!).
+ *
+ * @param addr address to set
+ * @return GNUNET_OK on success,
+ * GNUNET_NO if the result is questionable,
+ * GNUNET_SYSERR on error
+ */
+int
+GNUNET_NAT_mini_get_external_ipv4 (struct in_addr *addr);
+
+
#endif
/* end of gnunet_nat_lib.h */
Modified: gnunet/src/nat/Makefile.am
===================================================================
--- gnunet/src/nat/Makefile.am 2011-07-07 15:06:33 UTC (rev 15876)
+++ gnunet/src/nat/Makefile.am 2011-07-07 15:32:31 UTC (rev 15877)
@@ -43,7 +43,9 @@
lib_LTLIBRARIES = libgnunetnat.la
libgnunetnat_la_SOURCES = \
- nat.c nat_test.c nat.h
+ nat.c nat.h \
+ nat_test.c \
+ nat_mini.c
libgnunetnat_la_LIBADD = \
$(top_builddir)/src/util/libgnunetutil.la \
Added: gnunet/src/nat/nat_mini.c
===================================================================
--- gnunet/src/nat/nat_mini.c (rev 0)
+++ gnunet/src/nat/nat_mini.c 2011-07-07 15:32:31 UTC (rev 15877)
@@ -0,0 +1,89 @@
+/*
+ This file is part of GNUnet.
+ (C) 2011 Christian Grothoff (and other contributing authors)
+
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 3, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+
+/**
+ * @file nat/nat_mini.c
+ * @brief functions for interaction with miniupnp
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "gnunet_util_lib.h"
+#include "gnunet_nat_lib.h"
+#include "nat.h"
+
+
+/**
+ * Try to get the external IPv4 address of this peer.
+ * Note: calling this function may block this process
+ * for a few seconds (!).
+ *
+ * @param addr address to set
+ * @return GNUNET_OK on success,
+ * GNUNET_NO if the result is questionable,
+ * GNUNET_SYSERR on error
+ */
+int
+GNUNET_NAT_mini_get_external_ipv4 (struct in_addr *addr)
+{
+ struct GNUNET_OS_Process *eip;
+ struct GNUNET_DISK_PipeHandle *opipe;
+ const struct GNUNET_DISK_FileHandle *r;
+ size_t off;
+ char buf[17];
+ ssize_t ret;
+ int iret;
+
+ opipe = GNUNET_DISK_pipe (GNUNET_YES,
+ GNUNET_NO,
+ GNUNET_YES);
+ eip = GNUNET_OS_start_process (NULL,
+ opipe,
+ "external-ip",
+ "external-ip", NULL);
+ if (NULL == eip)
+ {
+ GNUNET_DISK_pipe_close (opipe);
+ return GNUNET_SYSERR;
+ }
+ GNUNET_DISK_pipe_close_end (opipe, GNUNET_DISK_PIPE_END_WRITE);
+ iret = GNUNET_SYSERR;
+ r = GNUNET_DISK_pipe_handle (opipe,
+ GNUNET_DISK_PIPE_END_READ);
+ off = 0;
+ while (0 < (ret = GNUNET_DISK_file_read (r, &buf[off], sizeof (buf)-off)))
+ off += ret;
+ if ( (off > 7) &&
+ (buf[off-1] == '\n') )
+ {
+ buf[off-1] = '\0';
+ if (1 == inet_pton (AF_INET, buf, addr))
+ {
+ if (addr->s_addr == 0)
+ iret = GNUNET_NO; /* got 0.0.0.0 */
+ iret = GNUNET_OK;
+ }
+ }
+ (void) GNUNET_OS_process_kill (eip, SIGKILL);
+ GNUNET_OS_process_close (eip);
+ GNUNET_DISK_pipe_close (opipe);
+ return iret;
+}
+
+/* end of nat_mini.c */
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