Add linux capabilities dependency to cmake

G0Y · May 24, 2020 · 5044fcd · 5044fcd
1 parent a014f5a
commit 5044fcd
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -92,6 +92,14 @@ target_link_libraries(example_edge_embed n2n)
 add_executable(example_sn_embed example_sn_embed.c)
 target_link_libraries(example_sn_embed n2n)
 
+# Linux Capabilities
+find_library(CAP_LIB cap)
+if(CAP_LIB)
+  target_link_libraries(edge cap)
+  set(CMAKE_REQUIRED_LIBRARIES ${CAP_LIB})
+  ADD_DEFINITIONS("-DHAVE_LIBCAP")
+endif()
+
 install(TARGETS edge supernode
         RUNTIME DESTINATION sbin
         LIBRARY DESTINATION lib

diff --git a/edge_utils.c b/edge_utils.c
@@ -2063,7 +2063,7 @@ static char* route_cmd_to_str(int cmd, const n2n_route_t *route, char *buf, size
 
 /* Adapted from https://olegkutkov.me/2019/08/29/modifying-linux-network-routes-using-netlink/ */
 #define NLMSG_TAIL(nmsg) \
-    ((struct rtattr *) (((void *) (nmsg)) + NLMSG_ALIGN((nmsg)->nlmsg_len)))
+    ((struct rtattr *) (((char *) (nmsg)) + NLMSG_ALIGN((nmsg)->nlmsg_len)))
 
 /* Add new data to rtattr */
 static int rtattr_add(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen)