copy from intranet.

src/common/err.c

@@ -0,0 +1,157 @@
+/* $Id: err.c 2423 2010-03-13 07:09:49Z aturner $ */
+
+/*
+ * err.c
+ *
+ * Adapted from OpenBSD libc *err* *warn* code.
+ *
+ * Copyright (c) 2001-2010 Aaron Turner.
+ *
+ * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
+ *
+ * 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.
+ */
+
+#include "config.h"
+#include "defines.h"
+#include "common.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+
+#ifdef DEBUG
+extern int debug;
+#endif
+
+/**
+ * writes a notice message to stderr.  Always forces a newline
+ */
+void
+notice(const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    if (fmt != NULL)
+        (void)vfprintf(stderr, fmt, ap);
+    (void)fprintf(stderr, "\n");
+    va_end(ap);
+    fflush(NULL);
+}
+
+/**
+ * Inner call to dbgx() which prints the function, line & function along
+ * with the message to stderr.  Always forces a newline.
+ * 
+ * You don't actually want to call this!  use dbgx() instead!
+ */
+#ifdef DEBUG
+void
+_our_verbose_dbgx(int dbg_level, const char *fmt, const char *function, 
+        const int line, const char *file, ...)
+{
+    va_list ap;
+
+    if (debug < dbg_level)
+        return;
+
+    fprintf(stderr, "DEBUG%d in %s:%s() line %d: ", dbg_level, file, 
+            function, line);
+
+    va_start(ap, file);
+
+    if (fmt != NULL)
+        (void)vfprintf(stderr, fmt, ap);
+    (void)fprintf(stderr, "\n");
+    va_end(ap);
+    fflush(NULL);
+}
+#endif
+
+/**
+ * Inner call to errx() which when in DEBUG mode, prints the function, line & file
+ * along with the actual error message to stderr.  Alawys forces a newline
+ */
+#ifdef DEBUG
+void
+_our_verbose_errx(int eval, const char *fmt, const char *function, const int line, const char *file, ...) {
+#else
+void
+_our_verbose_errx(int eval, const char *fmt, ...) {
+#endif
+
+    va_list ap;
+
+#ifdef DEBUG
+    fprintf(stderr, "\nFatal Error in %s:%s() line %d:\n", file, function, line);
+    va_start(ap, file);
+#else
+    fprintf(stderr, "\nFatal Error: ");
+    va_start(ap, fmt);
+#endif
+
+    if (fmt != NULL)
+        (void)vfprintf(stderr,  fmt, ap);
+    (void)fprintf(stderr, "\n");
+    va_end(ap);
+    exit(eval);
+}
+
+/**
+ * Inner call to warnx() which when in DEBUG mode, prints the function, line & file
+ * along with the actual warning to stderr.  Alawys forces a newline
+ */
+#ifdef DEBUG
+void
+_our_verbose_warnx(const char *fmt, const char *function, const int line, const char *file, ...) {
+#else
+void 
+_our_verbose_warnx(const char *fmt, ...) {
+#endif
+
+    va_list ap;
+#ifdef DEBUG
+    fprintf(stderr, "Warning in %s:%s() line %d:\n", file, function, line);
+    va_start(ap, file);
+#else
+    fprintf(stderr, "Warning: ");
+    va_start(ap, fmt);
+#endif
+
+    if (fmt != NULL)
+        (void)vfprintf(stderr, fmt, ap);
+    (void)fprintf(stderr, "\n");
+    va_end(ap);
+}