Fix warning as error for V2

Change-Id: I70cfd971fda629011ba1be84fef15afea196d393
diff --git a/mbtk/libmbtk_lib_v2/common/mbtk_log.c b/mbtk/libmbtk_lib_v2/common/mbtk_log.c
index fcdf0b1..ab599b4 100755
--- a/mbtk/libmbtk_lib_v2/common/mbtk_log.c
+++ b/mbtk/libmbtk_lib_v2/common/mbtk_log.c
@@ -21,6 +21,8 @@
 #include "mbtk_log.h"
 #include "mbtk_str.h"
 
+// extern char *__progname;
+
 typedef enum {
     LOG_ID_MAIN = 0,
     LOG_ID_RADIO = 1,
@@ -35,11 +37,13 @@
 static int tlog_fd = -1;
 // Default for radio log.
 static int syslog_radio_enable = 2;
-static FILE* logfile = NULL;
+//static FILE* logfile = NULL;
 static int signal_fd = -1;
 
 static bool log_level_printed = FALSE;
 
+static bool log_init = FALSE;
+
 /**
  * @brief      mbtk_log_init
  *
@@ -60,6 +64,12 @@
  */
 void mbtk_log_init(char* path, char* tag)
 {
+    if(log_init) {
+        return;
+    } else {
+        log_init = TRUE;
+    }
+
     if (str_empty(path)) {
         tlog_fd = STDOUT_FILENO;
     } else if (0 == memcmp(path, "syslog", 6)) {
@@ -88,6 +98,31 @@
     va_list ap;
     struct timeval log_time;
     int length = 0;
+    int ret = 0;
+
+    if(!log_init) {
+        char filename[64] = {0};
+        int fd = open("/proc/self/comm", O_RDONLY);
+        if(fd > 0) {
+            if(read(fd, filename, sizeof(filename)) > 0) {
+                // Delete last '\r' / '\n' / ' '
+                char *ptr = filename + strlen(filename) - 1;
+                while(ptr >= filename && (*ptr == '\r' || *ptr == '\n' || *ptr == ' '))
+                {
+                    *ptr-- = '\0';
+                }
+
+                mbtk_log_init("radio", filename);
+            } else {
+                mbtk_log_init("radio", "MBTK");
+            }
+            close(fd);
+        } else {
+            mbtk_log_init("radio", "MBTK");
+        }
+
+        //mbtk_log_init("radio", __progname);
+    }
 
     va_start(ap, format);
     length = vsnprintf(buf, sizeof(buf), format, ap);
@@ -111,10 +146,13 @@
         struct tm* tm_t = localtime(&(log_time.tv_sec));
         strftime(tmp, 50, "%F %T", tm_t);
         snprintf(tmp + strlen(tmp), sizeof(tmp) - strlen(tmp), " %d<%d>:", (int)(log_time.tv_usec / 1000), level);
-        write(tlog_fd, tmp, strlen(tmp));
-        write(tlog_fd, buf, length);
+        ret = write(tlog_fd, tmp, strlen(tmp));
+        ret = write(tlog_fd, buf, length);
         if (buf[length - 1] != '\n') {
-            write(tlog_fd, "\n", 1);
+            ret = write(tlog_fd, "\n", 1);
+            if(ret) {
+                // Donothing.
+            }
         }
         if (tlog_fd > 2) {
             fsync(tlog_fd);
@@ -164,7 +202,6 @@
     char buff[256];
     int size = 0;
     int ret = 0;
-    int i = 0;
     static struct sockaddr_un srv_addr;
 
     if(signal_fd < 0) {