--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/common.c	Fri May 30 14:24:23 2008 +0300
@@ -0,0 +1,44 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <string.h>
+
+#include "common.h"
+
+void die (const char *msg) {
+    perror(msg);
+    exit(EXIT_FAILURE);
+}
+
+void error (const char *fmt, ...) {
+    va_list va;
+
+    va_start(va, fmt);
+    vfprintf(stderr, fmt, va);
+    va_end(va);
+
+    fprintf(stderr, "\n");
+}
+
+void perr_exit (const char *fmt, ...) {
+    va_list va;
+
+    va_start(va, fmt);
+    vfprintf(stderr, fmt, va);
+    va_end(va);
+
+    fprintf(stderr, ": %s\n", strerror(errno));
+    exit(EXIT_FAILURE);
+}
+
+void err_exit (const char *fmt, ...) {
+    va_list va;
+
+    va_start(va, fmt);
+    vfprintf(stderr, fmt, va);
+    va_end(va);
+
+    fprintf(stderr, "\n");
+    exit(EXIT_FAILURE);
+}