[HICN-657] Remove common.h dependency in collectd plugins

In Ubuntu 20.04, the file common.h is not shipped with collectd
packages anymore. This patch removes that dependency from the collectd
plugins.

Change-Id: I234389ee9cbfd1f1820efdb34d532a7b11618206
Signed-off-by: Olivier Roques <oroques+fdio@cisco.com>

2 files changed, 18 insertions, 21 deletions

diff --git a/telemetry/vpp-collectd/vpp-hicn/CMakeLists.txt b/telemetry/vpp-collectd/vpp-hicn/CMakeLists.txt
index fc39b9385..3703515dc 100644
--- a/telemetry/vpp-collectd/vpp-hicn/CMakeLists.txt
+++ b/telemetry/vpp-collectd/vpp-hicn/CMakeLists.txt
@@ -18,7 +18,7 @@ find_package(Collectd REQUIRED)
 find_package(Vpp REQUIRED)
 
 if(${CMAKE_SOURCE_DIR}/vpp-collectd STREQUAL ${PROJECT_SOURCE_DIR})
-   message (STATUS "not compiling in the same folder")
+  message (STATUS "not compiling in the same folder")
   find_package(HicnPlugin REQUIRED)
   find_package(VapiSafe REQUIRED)
 else()
@@ -29,17 +29,16 @@ else()
 endif()
 
 list(APPEND SOURCE_FILES
-     ${CMAKE_CURRENT_SOURCE_DIR}/vpp_hicn.c
-)
+     ${CMAKE_CURRENT_SOURCE_DIR}/vpp_hicn.c)
 
-list (APPEND INCLUDE_DIRS
+list(APPEND INCLUDE_DIRS
     ${COLLECTD_INCLUDE_DIRS}
     ${HICNPLUGIN_INCLUDE_DIRS}
     ${SAFE_VAPI_INCLUDE_DIRS}
     ${VPP_INCLUDE_DIRS}
     ${CMAKE_CURRENT_SOURCE_DIR})
 
-list (APPEND LIBRARIES
+list(APPEND LIBRARIES
     ${VPP_LIBRARY_VAPICLIENT}
     ${SAFE_VAPI_LIBRARIES})
 
diff --git a/telemetry/vpp-collectd/vpp-hicn/vpp_hicn.c b/telemetry/vpp-collectd/vpp-hicn/vpp_hicn.c
index 591b8f584..4228ac6e6 100644
--- a/telemetry/vpp-collectd/vpp-hicn/vpp_hicn.c
+++ b/telemetry/vpp-collectd/vpp-hicn/vpp_hicn.c
@@ -13,25 +13,9 @@
  * limitations under the License.
  */
 
-#if !HAVE_CONFIG_H
-#include <stdlib.h>
-#include <string.h>
-
-#ifndef __USE_ISOC99 /* required for NAN */
-#define DISABLE_ISOC99 1
-#define __USE_ISOC99 1
-#endif /* !defined(__USE_ISOC99) */
-
-#if DISABLE_ISOC99
-#undef DISABLE_ISOC99
-#undef __USE_ISOC99
-#endif /* DISABLE_ISOC99 */
-#endif /* ! HAVE_CONFIG */
-
 /* Keep order as it is */
 #include <config.h>
 #include <collectd.h>
-#include <common.h>
 #include <plugin.h>
 
 #define counter_t vpp_counter_t
@@ -42,6 +26,15 @@
 DEFINE_VAPI_MSG_IDS_HICN_API_JSON
 vapi_ctx_t vapi_ctx;
 
+#define STATIC_ARRAY_SIZE(a) (sizeof(a) / sizeof(*(a)))
+
+#define IS_TRUE(s)                                                             \
+  ((strcasecmp("true", (s)) == 0) || (strcasecmp("yes", (s)) == 0) ||          \
+   (strcasecmp("on", (s)) == 0))
+#define IS_FALSE(s)                                                            \
+  ((strcasecmp("false", (s)) == 0) || (strcasecmp("no", (s)) == 0) ||          \
+   (strcasecmp("off", (s)) == 0))
+
 /************** OPTIONS ***********************************/
 static const char *config_keys[2] = {
     "Verbose",
@@ -188,6 +181,11 @@ static data_set_t dtx_ds = {
 /**********************************************************/
 /********** UTILITY FUNCTIONS *****************************/
 /**********************************************************/
+char *sstrncpy(char *dest, const char *src, size_t n) {
+  strncpy(dest, src, n);
+  dest[n - 1] = '\0';
+  return dest;
+}
 
 /*
  * Utility function used by the read callback to populate a