DHCP Server Daemon

errwarn.c

@@ -0,0 +1,200 @@
+/* errwarn.c
+
+   Errors and warnings... */
+
+/*
+ * Copyright (c) 1995 RadioMail Corporation.  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. Neither the name of RadioMail Corporation 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 RADIOMAIL CORPORATION 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
+ * RADIOMAIL CORPORATION 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.
+ *
+ * This software was written for RadioMail Corporation by Ted Lemon
+ * under a contract with Vixie Enterprises, and is based on an earlier
+ * design by Paul Vixie.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1995 RadioMail Corporation.  All rights reserved.\n";
+#endif /* not lint */
+
+#include "dhcpd.h"
+#include <syslog.h>
+#include <errno.h>
+
+static void do_percentm PROTO ((char *obuf, char *ibuf));
+
+static char mbuf [1024];
+static char fbuf [1024];
+
+/* Log an error message, then exit... */
+
+int error (ANSI_DECL(char *) fmt, VA_DOTDOTDOT)
+     KandR (char *fmt;)
+     va_dcl
+{
+  va_list list;
+  extern int logged_in;
+
+  do_percentm (fbuf, fmt);
+
+  VA_start (list, fmt);
+  vsnprintf (mbuf, sizeof mbuf, fbuf, list);
+  va_end (list);
+#ifndef DEBUG
+  syslog (LOG_ERR, mbuf);
+#else
+  write (1, mbuf, strlen (mbuf));
+  write (1, "\n", 1);
+#endif
+
+  cleanup ();
+  exit (1);
+}
+
+/* Log a warning message... */
+
+int warn (ANSI_DECL (char *) fmt, VA_DOTDOTDOT)
+     KandR (char *fmt;)
+     va_dcl
+{
+  va_list list;
+
+  do_percentm (fbuf, fmt);
+
+  VA_start (list, fmt);
+  vsnprintf (mbuf, sizeof mbuf, fbuf, list);
+  va_end (list);
+#ifndef DEBUG
+  syslog (LOG_ERR, mbuf);
+#else
+  write (1, mbuf, strlen (mbuf));
+  write (1, "\n", 1);
+#endif
+  return 0;
+}
+
+/* Log a note... */
+
+int note (ANSI_DECL (char *) fmt, VA_DOTDOTDOT)
+     KandR (char *fmt;)
+     va_dcl
+{
+  va_list list;
+
+  do_percentm (fbuf, fmt);
+
+  VA_start (list, fmt);
+  vsnprintf (mbuf, sizeof mbuf, fbuf, list);
+  va_end (list);
+#ifndef DEBUG
+  syslog (LOG_INFO, mbuf);
+#else
+  write (1, mbuf, strlen (mbuf));
+  write (1, "\n", 1);
+#endif
+  return 0;
+}
+
+/* Log a debug message... */
+
+int debug (ANSI_DECL (char *) fmt, VA_DOTDOTDOT)
+     KandR (char *fmt;)
+     va_dcl
+{
+  va_list list;
+
+  do_percentm (fbuf, fmt);
+
+  VA_start (list, fmt);
+  vsnprintf (mbuf, sizeof mbuf, fbuf, list);
+  va_end (list);
+#ifndef DEBUG
+  syslog (LOG_DEBUG, mbuf);
+#else
+  write (1, mbuf, strlen (mbuf));
+  write (1, "\n", 1);
+#endif
+  return 0;
+}
+
+/* Find %m in the input string and substitute an error message string. */
+
+static void do_percentm (obuf, ibuf)
+     char *obuf;
+     char *ibuf;
+{
+  char *s = ibuf;
+  char *p = obuf;
+  int infmt = 0;
+
+  while (*s)
+    {
+      if (infmt)
+	{
+	  if (*s == 'm')
+	    {
+	      strcpy (p - 1, strerror (errno));
+	      p += strlen (p);
+	      ++s;
+	    }
+	  else
+	    *p++ = *s++;
+	  infmt = 0;
+	}
+      else
+	{
+	  if (*s == '%')
+	    infmt = 1;
+	  *p++ = *s++;
+	}
+    }
+  *p = 0;
+}
+
+
+int parse_warn (ANSI_DECL (char *) fmt, VA_DOTDOTDOT)
+	KandR (char *fmt;)
+	va_dcl
+{
+	extern int tline, tlpos;
+	va_list list;
+	
+	do_percentm (mbuf, fmt);
+	snprintf (fbuf, sizeof fbuf, "dhcpd.conf line %d char %d: %s",
+		  tline, tlpos, mbuf);
+	
+	VA_start (list, fmt);
+	vsnprintf (mbuf, sizeof mbuf, fbuf, list);
+	va_end (list);
+#ifndef DEBUG
+	syslog (LOG_ERROR, mbuf);
+#else
+	write (1, mbuf, strlen (mbuf));
+	write (1, "\n", 1);
+#endif
+	return 0;
+}