using common.c to extract date and using nios.c to check kernel version(a bit specific to nios) and using c api instead of system command to get uname

slsDetectorServers/slsDetectorServer/src/common.c

@@ -1,3 +1,4 @@
+#define _GNU_SOURCE // needed for strptime to be at the top
 #include "common.h"
 #include "clogger.h"
 #include "sls_detector_defs.h"
@@ -59,4 +60,13 @@ int getAbsPath(char *buf, size_t bufSize, char *fname) {
     sprintf(buf, "%s/%s", dir, fname);
     LOG(logDEBUG1, ("full path for %s: %s\n", fname, buf));
     return OK;
+}
+
+int GetTimeFromString(char *buf, time_t *result) {
+    struct tm t;
+    if (NULL == strptime(buf, "%a %b %d %H:%M:%S %Z %Y", &t)) {
+        return FAIL;
+    }
+    *result = mktime(&t);
+    return OK;
 }