1 files changed, 24 insertions, 0 deletions
diff --git a/common.h b/common.h
new file mode 100644
index 0000000..82a6328
--- /dev/null
+++ b/common.h
@@ -0,0 +1,24 @@
+#ifndef NQ_COMMON_H
+#define NQ_COMMON_H
+
+#include <errno.h>
+#include <stdio.h>
+
+extern const char *progname;
+
+#define ERROR(...) \
+	do { \
+		fprintf(stderr, "%s: ", progname); \
+		fprintf(stderr, __VA_ARGS__); \
+		fprintf(stderr, "\n"); \
+	} while (0)
+
+#define PERROR(str) \
+	do { \
+		int err = errno; \
+		fprintf(stderr, "%s: ", progname); \
+		errno = err; \
+		perror(str); \
+	} while (0)
+
+#endif