PERFORCE change 79936 for review

[soc-victor]

http://perforce.freebsd.org/chv.cgi?CH=79936

Change 79936 by soc-victor at soc-victor_82.76.158.176 on 2005/07/10 20:30:56

	Cosmetic changes in the gensnmptree tool so as the <prefix>_tree.h 
	generated/ output file to contain the #ifndef...#define... #endif 
	clauses in order to prevent multiple inclusions.

Affected files ...

.. //depot/projects/soc2005/bsnmp/contrib/bsnmp/gensnmptree/gensnmptree.c#2 edit

Differences ...

==== //depot/projects/soc2005/bsnmp/contrib/bsnmp/gensnmptree/gensnmptree.c#2 (text+ko) ====

@@ -898,6 +898,8 @@
 	int opt;
 	struct node *root;
 	char fname[MAXPATHLEN + 1];
+	char include_fname[MAXPATHLEN + 128 +1];
+	int idx;
 	int tok;
 
 	while ((opt = getopt(argc, argv, "help:t")) != EOF)
@@ -955,13 +957,24 @@
 		return (0);
 	}
 	sprintf(fname, "%stree.h", file_prefix);
+	
+	/*prepare the ifndef directive*/
+	memset(include_fname,'\0',sizeof(include_fname));
+	snprintf(include_fname, MAXPATHLEN + 128, "_%sTREE_H_INCLUDED__",file_prefix);
+	for(idx = 0; idx < strlen(include_fname); idx++){
+		include_fname[idx] = toupper(include_fname[idx]);		
+	}
+			
 	if ((fp = fopen(fname, "w")) == NULL)
 		err(1, "%s: ", fname);
+	
+	fprintf(fp, "#ifndef %s\n",include_fname);
+	fprintf(fp, "#define %s\n",include_fname);		
 	gen_header(root, PREFIX_LEN, NULL);
 
 	fprintf(fp, "#define %sCTREE_SIZE %u\n", file_prefix, tree_size);
 	fprintf(fp, "extern const struct snmp_node %sctree[];\n", file_prefix);
-
+	fprintf(fp, "#endif /* %s */\n",include_fname);
 	fclose(fp);
 
 	sprintf(fname, "%stree.c", file_prefix);