Initial integration of a much cleaned up libwrap.

1 files changed, 75 insertions, 0 deletions

diff --git a/lib/libwrap/diag.c b/lib/libwrap/diag.c
new file mode 100644
index 00000000000..ed8d064ed56
--- /dev/null
+++ b/lib/libwrap/diag.c
@@ -0,0 +1,75 @@
+/*	$OpenBSD: diag.c,v 1.1 1997/02/26 03:06:50 downsj Exp $	*/
+
+ /*
+  * Routines to report various classes of problems. Each report is decorated
+  * with the current context (file name and line number), if available.
+  * 
+  * tcpd_warn() reports a problem and proceeds.
+  * 
+  * tcpd_jump() reports a problem and jumps.
+  * 
+  * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
+  */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#) diag.c 1.1 94/12/28 17:42:20";
+#else
+static char rcsid[] = "$OpenBSD: diag.c,v 1.1 1997/02/26 03:06:50 downsj Exp $";
+#endif
+#endif
+
+/* System libraries */
+
+#include <syslog.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <setjmp.h>
+
+/* Local stuff */
+
+#include "tcpd.h"
+
+struct tcpd_context tcpd_context;
+jmp_buf tcpd_buf;
+
+/* tcpd_diag - centralize error reporter */
+
+static void tcpd_diag(severity, tag, format, ap)
+int     severity;
+char   *tag;
+char   *format;
+va_list ap;
+{
+    char    fmt[BUFSIZ];
+
+    if (tcpd_context.file)
+	sprintf(fmt, "%s: %s, line %d: %s",
+		tag, tcpd_context.file, tcpd_context.line, format);
+    else
+	sprintf(fmt, "%s: %s", tag, format);
+    vsyslog(severity, fmt, ap);
+}
+
+/* tcpd_warn - report problem of some sort and proceed */
+
+void    VARARGS(tcpd_warn, char *, format)
+{
+    va_list ap;
+
+    VASTART(ap, char *, format);
+    tcpd_diag(LOG_ERR, "warning", format, ap);
+    VAEND(ap);
+}
+
+/* tcpd_jump - report serious problem and jump */
+
+void    VARARGS(tcpd_jump, char *, format)
+{
+    va_list ap;
+
+    VASTART(ap, char *, format);
+    tcpd_diag(LOG_ERR, "error", format, ap);
+    VAEND(ap);
+    longjmp(tcpd_buf, AC_ERROR);
+}