2.11BSD#431 - /usr/src/libexec/tcpd/diag.c

   1:  /*
   2:   * Routines to report various classes of problems. Each report is decorated
   3:   * with the current context (file name and line number), if available.
   4:   *
   5:   * tcpd_warn() reports a problem and proceeds.
   6:   *
   7:   * tcpd_jump() reports a problem and jumps.
   8:   *
   9:   * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
  10:   */
  11: 
  12: #ifndef lint
  13: static char sccsid[] = "@(#) diag.c 1.1 94/12/28 17:42:20";
  14: #endif
  15: 
  16: /* System libraries */
  17: 
  18: #include <syslog.h>
  19: #include <stdio.h>
  20: #include <setjmp.h>
  21: 
  22: /* Local stuff */
  23: 
  24: #include "tcpd.h"
  25: #include "mystdarg.h"
  26: 
  27: struct tcpd_context tcpd_context;
  28: jmp_buf tcpd_buf;
  29: 
  30: /* tcpd_diag - centralize error reporter */
  31: 
  32: static void tcpd_diag(severity, tag, format, ap)
  33: int     severity;
  34: char   *tag;
  35: char   *format;
  36: va_list ap;
  37: {
  38:     char    fmt[BUFSIZ];
  39: 
  40:     if (tcpd_context.file)
  41:     sprintf(fmt, "%s: %s, line %d: %s",
  42:         tag, tcpd_context.file, tcpd_context.line, format);
  43:     else
  44:     sprintf(fmt, "%s: %s", tag, format);
  45:     vsyslog(severity, fmt, ap);
  46: }
  47: 
  48: /* tcpd_warn - report problem of some sort and proceed */
  49: 
  50: void    VARARGS(tcpd_warn, char *, format)
  51: {
  52:     va_list ap;
  53: 
  54:     VASTART(ap, char *, format);
  55:     tcpd_diag(LOG_ERR, "warning", format, ap);
  56:     VAEND(ap);
  57: }
  58: 
  59: /* tcpd_jump - report serious problem and jump */
  60: 
  61: void    VARARGS(tcpd_jump, char *, format)
  62: {
  63:     va_list ap;
  64: 
  65:     VASTART(ap, char *, format);
  66:     tcpd_diag(LOG_ERR, "error", format, ap);
  67:     VAEND(ap);
  68:     longjmp(tcpd_buf, AC_ERROR);
  69: }

Defined functions

Defined variables