1 files changed, 128 insertions, 0 deletions
diff --git a/src/common/err.h b/src/common/err.h
new file mode 100644
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--- /dev/null
+++ b/src/common/err.h
@@ -0,0 +1,128 @@
+/* $Id: err.h 2423 2010-03-13 07:09:49Z aturner $ */
+
+/*
+ * err.h
+ *
+ * Adapted from OpenBSD libc *err* *warn* code.
+ *
+ * Copyright (c) 2001-2010 Aaron Turner.
+ *
+ * Copyright (c) 2000 Dug Song <[email protected]>
+ *
+ * Copyright (c) 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)err.h	8.1 (Berkeley) 6/2/93
+ */
+
+#ifndef _ERR_H_
+#define _ERR_H_
+
+#include <stdlib.h>
+
+#ifdef DEBUG
+extern int debug;
+#endif
+
+/*
+ * We define five functions for reporting errors, warnings and debug messages:
+ * err()   - Fatal error.  Pass exit code followed by static string
+ * errx()  - Fatal error.  Pass exit code, format string, one or more variables
+ * warn()  - Warning. Pass static string
+ * warnx() - Warning. Pass format string, one or more variables
+ * dbg()   - Debug. Debug level to trigger, static string
+ * dbgx()  - Debug. Debug level to trigger, format string, one or more variables
+ * notice() - Informational only via stderr, format string, one or more variables
+ */
+
+/* gcc accepts __FUNCTION__, but C99 says use __func__.  Necessary for SunPro compiler */
+#if !defined(__GNUC__) && !defined(__FUNCTION__)
+#  define __FUNCTION__ __func__
+#endif
+
+void notice(const char *fmt, ...);
+
+#ifdef DEBUG /* then err, errx, warn, warnx print file, func, line */
+
+#define dbg(x, y) do { \
+    if (debug >= x) \
+        fprintf(stderr, "DEBUG%d in %s:%s() line %d: %s\n", x, __FILE__, __FUNCTION__, __LINE__, y); \
+    } while(0)
+    
+#define dbgx(x, y, ...) do { \
+    if (debug >= x) { \
+        fprintf(stderr, "DEBUG%d in %s:%s() line %d: " y "\n", x, __FILE__, __FUNCTION__, __LINE__, __VA_ARGS__); \
+    } \
+} while(0)
+        
+
+#define warn(x) fprintf(stderr, "Warning in %s:%s() line %d:\n%s\n", __FILE__, __FUNCTION__, __LINE__, x)
+
+
+#define warnx(x, ...) fprintf(stderr, "Warning in %s:%s() line %d:\n" x "\n", __FILE__, __FUNCTION__, __LINE__, __VA_ARGS__)
+
+#define err(x, y) do { \
+        fprintf(stderr, "\nFatal Error in %s:%s() line %d:\n%s\n", __FILE__, __FUNCTION__, __LINE__, y); \
+        fflush(NULL); \
+        exit(x); \
+    } while (0)
+
+#define errx(x, y, ...) do {\
+        fprintf(stderr, "\nFatal Error in %s:%s() line %d:\n " y "\n", __FILE__, __FUNCTION__, __LINE__, __VA_ARGS__); \
+        fflush(NULL); \
+        exit(x); \
+    } while (0)
+
+#else /* no detailed DEBUG info */
+
+/* dbg() and dbgx() become no-ops for non-DEBUG builds */
+#define dbg(x, y) { }
+#define dbgx(x, y, ...) { }
+
+#define warn(x) fprintf(stderr, "Warning: %s\n", x)
+
+#define warnx(x, ...) fprintf(stderr, "Warning: " x "\n", __VA_ARGS__)
+
+#define err(x, y) do {\
+        fprintf(stderr, "\nFatal Error:\n%s\n", y); \
+        fflush(NULL); \
+        exit(x); \
+    } while(0)
+
+#define errx(x, y, ...) do {\
+        fprintf(stderr, "\nFatal Error: " y "\n", __VA_ARGS__); \
+        fflush(NULL); \
+        exit(x); \
+    } while (0)
+#endif /* DEBUG */
+
+
+#endif /* !_ERR_H_ */