src/main.*: Improve arguments handling.

src/main.pyx

@@ -281,6 +281,11 @@ cdef int start(const char *path_to_scan, const char *fb_exec_path, const char *f
     #cdef char ip_address[100]
     #cdef FILE *address_path = fopen("/sys/class/net/ens3/address", "r")
     if child_pid == 0:  # CHILD
+        fprintf(stdout, "path_to_scan: %s\n", path_to_scan)
+        fprintf(stdout, "fb_exec_path: %s\n", fb_exec_path)
+        fprintf(stdout, "fb_lib_path: %s\n", fb_lib_path)
+        fprintf(stdout, "fb_conf_path: %s\n", fb_conf_path)
+        fprintf(stdout, "log_path: %s\n", log_path)
         err = execlp(fb_exec_path, program_name, <char*>"-e", fb_lib_path, <char*>"-c", fb_conf_path, 0)
         fprintf(stderr, "ERROR with execlp() in CHILD: %d\n", err)
     else:               # PARENT
@@ -363,13 +368,15 @@ cdef public int main(int argc, char* argv[]) nogil:
     cdef char* fb_lib_path = "/etc/fluentbit_wendelin.so"
     cdef char* fb_conf_path = "/etc/flb.conf"
     cdef char* log_path = "/var/log/metadata_collect.log"
-    if argc == 2:
-        path_to_scan = <char*>argv[1]
-    elif argc == 6:
+    if argc >= 2:
         path_to_scan = <char*>argv[1]
+    if argc >= 3:
         fb_exec_path = <char*>argv[2]
+    if argc >= 4:
         fb_lib_path = <char*>argv[3]
+    if argc >= 5:
         fb_conf_path = <char*>argv[4]
+    if argc >=6:
         log_path = <char*>argv[5]
     return start(<char*>path_to_scan, <char*>fb_exec_path, <char*>fb_lib_path, <char*>fb_conf_path, <char*>log_path)