text: /* crypto/bio/bss_log.c */
  /* ====================================================================
   * Copyright (c) 1999 The OpenSSL Project.  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 acknowledgment:
   *    "This product includes software developed by the OpenSSL Project
   *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
   *
   * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
   *    endorse or promote products derived from this software without
   *    prior written permission. For written permission, please contact
   *    licensing@OpenSSL.org.
   *
   * 5. Products derived from this software may not be called "OpenSSL"
   *    nor may "OpenSSL" appear in their names without prior written
   *    permission of the OpenSSL Project.
   *
   * 6. Redistributions of any form whatsoever must retain the following
   *    acknowledgment:
   *    "This product includes software developed by the OpenSSL Project
   *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
   *
   * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
   * EXPRESSED 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 OpenSSL PROJECT OR
   * ITS 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 product includes cryptographic software written by Eric Young
   * (eay@cryptsoft.com).  This product includes software written by Tim
   * Hudson (tjh@cryptsoft.com).
   *
   */
  
  /*
   * Why BIO_s_log?
   *
   * BIO_s_log is useful for system daemons (or services under NT). It is
   * one-way BIO, it sends all stuff to syslogd (on system that commonly use
   * that), or event log (on NT), or OPCOM (on OpenVMS).
   *
   */
  
  #include <stdio.h>
  #include <errno.h>
  
  #include "cryptlib.h"
  
  #if defined(OPENSSL_SYS_WINCE)
  #elif defined(OPENSSL_SYS_WIN32)
  #elif defined(OPENSSL_SYS_VMS)
  # include <opcdef.h>
  # include <descrip.h>
  # include <lib$routines.h>
  # include <starlet.h>
  /* Some compiler options may mask the declaration of "_malloc32". */
  # if __INITIAL_POINTER_SIZE && defined _ANSI_C_SOURCE
  #  if __INITIAL_POINTER_SIZE == 64
  #   pragma pointer_size save
  #   pragma pointer_size 32
  void *_malloc32(__size_t);
  #   pragma pointer_size restore
  #  endif                        /* __INITIAL_POINTER_SIZE == 64 */
  # endif                         /* __INITIAL_POINTER_SIZE && defined
                                   * _ANSI_C_SOURCE */
  #elif defined(__ultrix)
  # include <sys/syslog.h>
  #elif defined(OPENSSL_SYS_NETWARE)
  # define NO_SYSLOG
  #elif (!defined(MSDOS) || defined(WATT32)) && !defined(OPENSSL_SYS_VXWORKS) && !defined(NO_SYSLOG)
  # include <syslog.h>
  #endif
  
  #include <openssl/buffer.h>
  #include <openssl/err.h>
  
  #ifndef NO_SYSLOG
  
  # if defined(OPENSSL_SYS_WIN32)
  #  define LOG_EMERG       0
  #  define LOG_ALERT       1
  #  define LOG_CRIT        2
  #  define LOG_ERR         3
  #  define LOG_WARNING     4
  #  define LOG_NOTICE      5
  #  define LOG_INFO        6
  #  define LOG_DEBUG       7
  
  #  define LOG_DAEMON      (3<<3)
  # elif defined(OPENSSL_SYS_VMS)
  /* On VMS, we don't really care about these, but we need them to compile */
  #  define LOG_EMERG       0
  #  define LOG_ALERT       1
  #  define LOG_CRIT        2
  #  define LOG_ERR         3
  #  define LOG_WARNING     4
  #  define LOG_NOTICE      5
  #  define LOG_INFO        6
  #  define LOG_DEBUG       7
  
  #  define LOG_DAEMON      OPC$M_NM_NTWORK
  # endif
  
  static int MS_CALLBACK slg_write(BIO *h, const char *buf, int num);
  static int MS_CALLBACK slg_puts(BIO *h, const char *str);
  static long MS_CALLBACK slg_ctrl(BIO *h, int cmd, long arg1, void *arg2);
  static int MS_CALLBACK slg_new(BIO *h);
  static int MS_CALLBACK slg_free(BIO *data);
  static void xopenlog(BIO *bp, char *name, int level);
  static void xsyslog(BIO *bp, int priority, const char *string);
  static void xcloselog(BIO *bp);
  
  static BIO_METHOD methods_slg = {
      BIO_TYPE_MEM, "syslog",
      slg_write,
      NULL,
      slg_puts,
      NULL,
      slg_ctrl,
      slg_new,
      slg_free,
      NULL,
  };
  
  BIO_METHOD *BIO_s_log(void)
  {
      return (&methods_slg);
  }
  
  static int MS_CALLBACK slg_new(BIO *bi)
  {
      bi->init = 1;
      bi->num = 0;
      bi->ptr = NULL;
      xopenlog(bi, "application", LOG_DAEMON);
      return (1);
  }
  
  static int MS_CALLBACK slg_free(BIO *a)
  {
      if (a == NULL)
          return (0);
      xcloselog(a);
      return (1);
  }
  
  static int MS_CALLBACK slg_write(BIO *b, const char *in, int inl)
  {
      int ret = inl;
      char *buf;
      char *pp;
      int priority, i;
      static const struct {
          int strl;
          char str[10];
          int log_level;
      } mapping[] = {
          {
              6, "PANIC ", LOG_EMERG
          },
          {
              6, "EMERG ", LOG_EMERG
          },
          {
              4, "EMR ", LOG_EMERG
          },
          {
              6, "ALERT ", LOG_ALERT
          },
          {
              4, "ALR ", LOG_ALERT
          },
          {
              5, "CRIT ", LOG_CRIT
          },
          {
              4, "CRI ", LOG_CRIT
          },
          {
              6, "ERROR ", LOG_ERR
          },
          {
              4, "ERR ", LOG_ERR
          },
          {
              8, "WARNING ", LOG_WARNING
          },
          {
              5, "WARN ", LOG_WARNING
          },
          {
              4, "WAR ", LOG_WARNING
          },
          {
              7, "NOTICE ", LOG_NOTICE
          },
          {
              5, "NOTE ", LOG_NOTICE
          },
          {
              4, "NOT ", LOG_NOTICE
          },
          {
              5, "INFO ", LOG_INFO
          },
          {
              4, "INF ", LOG_INFO
          },
          {
              6, "DEBUG ", LOG_DEBUG
          },
          {
              4, "DBG ", LOG_DEBUG
          },
          {
              0, "", LOG_ERR
          }
          /* The default */
      };
  
      if ((buf = (char *)OPENSSL_malloc(inl + 1)) == NULL) {
          return (0);
      }
      strncpy(buf, in, inl);
      buf[inl] = '\0';
  
      i = 0;
      while (strncmp(buf, mapping[i].str, mapping[i].strl) != 0)
          i++;
      priority = mapping[i].log_level;
      pp = buf + mapping[i].strl;
  
      xsyslog(b, priority, pp);
  
      OPENSSL_free(buf);
      return (ret);
  }
  
  static long MS_CALLBACK slg_ctrl(BIO *b, int cmd, long num, void *ptr)
  {
      switch (cmd) {
      case BIO_CTRL_SET:
          xcloselog(b);
          xopenlog(b, ptr, num);
          break;
      default:
          break;
      }
      return (0);
  }
  
  static int MS_CALLBACK slg_puts(BIO *bp, const char *str)
  {
      int n, ret;
  
      n = strlen(str);
      ret = slg_write(bp, str, n);
      return (ret);
  }
  
  # if defined(OPENSSL_SYS_WIN32)
  
  static void xopenlog(BIO *bp, char *name, int level)
  {
      if (check_winnt())
          bp->ptr = RegisterEventSourceA(NULL, name);
      else
          bp->ptr = NULL;
  }
  
  static void xsyslog(BIO *bp, int priority, const char *string)
  {
      LPCSTR lpszStrings[2];
      WORD evtype = EVENTLOG_ERROR_TYPE;
      char pidbuf[DECIMAL_SIZE(DWORD) + 4];
  
      if (bp->ptr == NULL)
          return;
  
      switch (priority) {
      case LOG_EMERG:
      case LOG_ALERT:
      case LOG_CRIT:
      case LOG_ERR:
          evtype = EVENTLOG_ERROR_TYPE;
          break;
      case LOG_WARNING:
          evtype = EVENTLOG_WARNING_TYPE;
          break;
      case LOG_NOTICE:
      case LOG_INFO:
      case LOG_DEBUG:
          evtype = EVENTLOG_INFORMATION_TYPE;
          break;
      default:
          /*
           * Should never happen, but set it
           * as error anyway.
           */
          evtype = EVENTLOG_ERROR_TYPE;
          break;
      }
  
      sprintf(pidbuf, "[%u] ", GetCurrentProcessId());
      lpszStrings[0] = pidbuf;
      lpszStrings[1] = string;
  
      ReportEventA(bp->ptr, evtype, 0, 1024, NULL, 2, 0, lpszStrings, NULL);
  }
  
  static void xcloselog(BIO *bp)
  {
      if (bp->ptr)
          DeregisterEventSource((HANDLE) (bp->ptr));
      bp->ptr = NULL;
  }
  
  # elif defined(OPENSSL_SYS_VMS)
  
  static int VMS_OPC_target = LOG_DAEMON;
  
  static void xopenlog(BIO *bp, char *name, int level)
  {
      VMS_OPC_target = level;
  }
  
  static void xsyslog(BIO *bp, int priority, const char *string)
  {
      struct dsc$descriptor_s opc_dsc;
  
  /* Arrange 32-bit pointer to opcdef buffer and malloc(), if needed. */
  #  if __INITIAL_POINTER_SIZE == 64
  #   pragma pointer_size save
  #   pragma pointer_size 32
  #   define OPCDEF_TYPE __char_ptr32
  #   define OPCDEF_MALLOC _malloc32
  #  else                         /* __INITIAL_POINTER_SIZE == 64 */
  #   define OPCDEF_TYPE char *
  #   define OPCDEF_MALLOC OPENSSL_malloc
  #  endif                        /* __INITIAL_POINTER_SIZE == 64 [else] */
  
      struct opcdef *opcdef_p;
  
  #  if __INITIAL_POINTER_SIZE == 64
  #   pragma pointer_size restore
  #  endif                        /* __INITIAL_POINTER_SIZE == 64 */
  
      char buf[10240];
      unsigned int len;
      struct dsc$descriptor_s buf_dsc;
      $DESCRIPTOR(fao_cmd, "!AZ: !AZ");
      char *priority_tag;
  
      switch (priority) {
      case LOG_EMERG:
          priority_tag = "Emergency";
          break;
      case LOG_ALERT:
          priority_tag = "Alert";
          break;
      case LOG_CRIT:
          priority_tag = "Critical";
          break;
      case LOG_ERR:
          priority_tag = "Error";
          break;
      case LOG_WARNING:
          priority_tag = "Warning";
          break;
      case LOG_NOTICE:
          priority_tag = "Notice";
          break;
      case LOG_INFO:
          priority_tag = "Info";
          break;
      case LOG_DEBUG:
          priority_tag = "DEBUG";
          break;
      }
  
      buf_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
      buf_dsc.dsc$b_class = DSC$K_CLASS_S;
      buf_dsc.dsc$a_pointer = buf;
      buf_dsc.dsc$w_length = sizeof(buf) - 1;
  
      lib$sys_fao(&fao_cmd, &len, &buf_dsc, priority_tag, string);
  
      /* We know there's an 8-byte header.  That's documented. */
      opcdef_p = OPCDEF_MALLOC(8 + len);
      opcdef_p->opc$b_ms_type = OPC$_RQ_RQST;
      memcpy(opcdef_p->opc$z_ms_target_classes, &VMS_OPC_target, 3);
      opcdef_p->opc$l_ms_rqstid = 0;
      memcpy(&opcdef_p->opc$l_ms_text, buf, len);
  
      opc_dsc.dsc$b_dtype = DSC$K_DTYPE_T;
      opc_dsc.dsc$b_class = DSC$K_CLASS_S;
      opc_dsc.dsc$a_pointer = (OPCDEF_TYPE) opcdef_p;
      opc_dsc.dsc$w_length = len + 8;
  
      sys$sndopr(opc_dsc, 0);
  
      OPENSSL_free(opcdef_p);
  }
  
  static void xcloselog(BIO *bp)
  {
  }
  
  # else                          /* Unix/Watt32 */
  
  static void xopenlog(BIO *bp, char *name, int level)
  {
  #  ifdef WATT32                 /* djgpp/DOS */
      openlog(name, LOG_PID | LOG_CONS | LOG_NDELAY, level);
  #  else
      openlog(name, LOG_PID | LOG_CONS, level);
  #  endif
  }
  
  static void xsyslog(BIO *bp, int priority, const char *string)
  {
      syslog(priority, "%s", string);
  }
  
  static void xcloselog(BIO *bp)
  {
      closelog();
  }
  
  # endif                         /* Unix */
  
  #endif                          /* NO_SYSLOG */
  