httpd implementation - wip

main/platform_esp32.h

@@ -37,3 +37,22 @@ typedef enum {
 	ERROR
 } message_severity_t;
 extern void set_status_message(message_severity_t severity, const char * message);
+#ifndef STR_OR_ALT
+#define STR_OR_ALT(str,alt) (str?str:alt)
+#endif
+
+extern const char unknown_string_placeholder[];
+extern const char * str_or_unknown(const char * str);
+
+#ifndef FREE_AND_NULL
+#define FREE_AND_NULL(x) if(x) { free(x); x=NULL; }
+#endif
+#ifndef QUOTE
+#define QUOTE(name) #name
+#endif
+#ifndef STR
+#define STR(macro)  QUOTE(macro)
+#endif
+#ifndef CASE_TO_STR
+#define CASE_TO_STR(x) case x: return STR(x); break;
+#endif