freebsd-src/contrib/tcp_wrappers/diag.c
Ed Maste 14f102eacc tcp_wrappers: Use ANSI (c89) function definitions
Although this code is in contrib/ there is no active upstream.

Reviewed by:	brooks
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D36047
2023-03-21 10:09:34 -04:00

66 lines
1.4 KiB
C

/*
* 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
static char sccsid[] = "@(#) diag.c 1.1 94/12/28 17:42:20";
#endif
/* System libraries */
#include <syslog.h>
#include <stdio.h>
#include <setjmp.h>
/* Local stuff */
#include "tcpd.h"
#include "mystdarg.h"
struct tcpd_context tcpd_context;
jmp_buf tcpd_buf;
/* tcpd_diag - centralize error reporter */
static void tcpd_diag(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_WARNING, "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);
}