Print usage on error

tests/grib_util_set_spec.c

@@ -340,6 +340,8 @@ int main(int argc, char *argv[])
     const char* prog = argv[0];
     char* infile_name = NULL;
     char* outfile_name = NULL;
+    
+    if (argc==1 || argc >8) usage(prog);
 
     for (i = 1; i < argc; i++) {
         if (strcmp(argv[i],"-p")==0) {

tigge/tigge_tools.c

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2005-2018 ECMWF.
+ *
+ * This software is licensed under the terms of the Apache Licence Version 2.0
+ * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
+ * virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
+ */
+
+/*
+ * Common tigge functions
+ */
+
+#include "tigge_tools.h"
+
+#include <stdlib.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <stdio.h>
+
+extern void validate(const char* path);
+
+void scan(const char* name)
+{
+    DIR *dir;
+    if((dir = opendir(name)) != NULL)
+    {
+        struct dirent* e;
+        char tmp[1024];
+        while( (e = readdir(dir)) != NULL)
+        {
+            if(e->d_name[0] == '.') continue;
+            sprintf(tmp,"%s/%s",name,e->d_name);
+            scan(tmp);
+        }
+
+        closedir(dir);
+    }
+    else {
+        validate(name);
+    }
+}

tigge/tigge_tools.h

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2005-2018 ECMWF.
+ *
+ * This software is licensed under the terms of the Apache Licence Version 2.0
+ * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
+ * virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
+ */
+
+#ifndef TIGGE_TOOLS_H
+#define TIGGE_TOOLS_H
+
+void scan(const char* name);
+
+#endif