1 files changed, 84 insertions, 0 deletions
diff --git a/include/erec.h b/include/erec.h
new file mode 100644
index 0000000..c17f5de
--- /dev/null
+++ b/include/erec.h
@@ -0,0 +1,84 @@
+#ifndef NFTABLES_EREC_H
+#define NFTABLES_EREC_H
+
+#include <nftables.h>
+#include <utils.h>
+
+/**
+ * enum error_record_types
+ *
+ * @EREC_INFORMATIONAL:	informational message
+ * @EREC_WARNING:	warning message
+ * @EREC_ERROR:		error message
+ */
+enum error_record_types {
+	EREC_INFORMATIONAL,
+	EREC_WARNING,
+	EREC_ERROR,
+};
+
+#define EREC_MSGBUFSIZE		1024
+#define EREC_LOCATIONS_MAX	3
+
+/**
+ * struct error_record
+ *
+ * @list:		message queue node
+ * @type:		error record type
+ * @num_locations:	number of locations
+ * @locations:		location(s) of error
+ * @msg:		message
+ */
+struct error_record {
+	struct list_head	list;
+	enum error_record_types	type;
+	unsigned int		num_locations;
+	struct location		locations[EREC_LOCATIONS_MAX];
+	char			*msg;
+};
+
+extern struct error_record *erec_vcreate(enum error_record_types type,
+					 const struct location *loc,
+					 const char *fmt, va_list ap)
+					 __gmp_fmtstring(3, 0);
+extern struct error_record *erec_create(enum error_record_types type,
+					const struct location *loc,
+					const char *fmt, ...) __gmp_fmtstring(3, 4);
+extern void erec_add_location(struct error_record *erec,
+			      const struct location *loc);
+extern void erec_destroy(struct error_record *erec);
+
+#define error(loc, fmt, args...) \
+	erec_create(EREC_ERROR, (loc), (fmt), ## args)
+#define warning(loc, fmt, args...) \
+	erec_create(EREC_WARNING, (loc), (fmt), ## args)
+
+static inline void erec_queue(struct error_record *erec,
+			      struct list_head *queue)
+{
+	list_add_tail(&erec->list, queue);
+}
+
+extern void erec_print(struct output_ctx *octx, const struct error_record *erec,
+		       unsigned int debug_mask);
+extern void erec_print_list(struct output_ctx *octx, struct list_head *list,
+			    unsigned int debug_mask);
+
+struct eval_ctx;
+
+extern int __fmtstring(4, 5) __stmt_binary_error(struct eval_ctx *ctx,
+						 const struct location *l1,
+						 const struct location *l2,
+						 const char *fmt, ...);
+
+#define stmt_error(ctx, s1, fmt, args...) \
+	__stmt_binary_error(ctx, &(s1)->location, NULL, fmt, ## args)
+#define stmt_binary_error(ctx, s1, s2, fmt, args...) \
+	__stmt_binary_error(ctx, &(s1)->location, &(s2)->location, fmt, ## args)
+
+void print_location(FILE *f, const struct input_descriptor *indesc,
+		    const struct location *loc);
+const char *line_location(const struct input_descriptor *indesc,
+			  const struct location *loc, char *buf, size_t bufsiz);
+
+#endif /* NFTABLES_EREC_H */