776 lines
18 KiB
C
776 lines
18 KiB
C
/* log.c
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Routines to add entries to the log files.
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Copyright (C) 1991, 1992, 1993, 1994, 1995 Ian Lance Taylor
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This file is part of the Taylor UUCP package.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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The author of the program may be contacted at ian@airs.com or
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c/o Cygnus Support, 48 Grove Street, Somerville, MA 02144.
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*/
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#include "uucp.h"
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#if USE_RCS_ID
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const char log_rcsid[] = "$Id: log.c,v 1.61 1995/06/21 19:14:58 ian Rel $";
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#endif
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#include <ctype.h>
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#include <errno.h>
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#if HAVE_STDARG_H
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#include <stdarg.h>
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#endif
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#if TM_IN_SYS_TIME
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#include <sys/time.h>
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#else
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#include <time.h>
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#endif
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#include "uudefs.h"
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#include "uuconf.h"
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#include "system.h"
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/* Local functions. */
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__inline__ static char *zstpcpy P((char *zto, const char *zfrom));
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static const char *zldate_and_time P((void));
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/* Program name. Set by main function. */
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const char *zProgram;
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/* Log file name. */
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static const char *zLogfile;
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/* The function to call when a LOG_FATAL error occurs. */
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static void (*pfLfatal) P((void));
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/* Whether to go to a file. */
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static boolean fLfile;
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/* ID number. */
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static int iLid;
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/* The current user name. */
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static char *zLuser;
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/* The current system name. */
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static char *zLsystem;
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/* The current device name. */
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char *zLdevice;
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/* The open log file. */
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static FILE *eLlog;
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/* Whether we have tried to open the log file. We need this because
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we don't want to keep trying to open the log file if we failed the
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first time. It can't be static because under HAVE_HDB_LOGGING we
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may have to write to various different log files. */
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static boolean fLlog_tried;
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#if DEBUG > 1
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/* Debugging file name. */
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static const char *zLdebugfile;
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/* The open debugging file. */
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static FILE *eLdebug;
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/* Whether we've tried to open the debugging file. */
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static boolean fLdebug_tried;
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#endif
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/* Statistics file name. */
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static const char *zLstatsfile;
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/* The open statistics file. */
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static FILE *eLstats;
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/* Whether we've tried to open the statistics file. */
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static boolean fLstats_tried;
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/* The array of signals. The elements are only set to TRUE by the
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default signal handler. They are only set to FALSE if we don't
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care whether we got the signal or not. */
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volatile sig_atomic_t afSignal[INDEXSIG_COUNT];
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/* The array of signals to log. The elements are only set to TRUE by
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the default signal handler. They are set to FALSE when the signal
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is logged in ulog. This means that if a signal comes in at just
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the right time we won't log it (or, rather, we'll log it once
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instead of twice), but that is not a catatrophe. */
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volatile sig_atomic_t afLog_signal[INDEXSIG_COUNT];
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/* Flag that indicates SIGHUP is worth logging. */
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boolean fLog_sighup = TRUE;
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/* Signal names to use when logging signals. */
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static const char * const azSignal_names[INDEXSIG_COUNT] = INDEXSIG_NAMES;
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/* If not NULL, ulog calls this function before outputting anything.
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This is used to support cu. */
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void (*pfLstart) P((void));
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/* If not NULL, ulog calls this function after outputting everything.
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This is used to support cu. */
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void (*pfLend) P((void));
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/* Set the function to call on a LOG_FATAL error. */
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void
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ulog_fatal_fn (pfn)
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void (*pfn) P((void));
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{
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pfLfatal = pfn;
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}
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/* Decide whether to send log message to the file or not. */
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void
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ulog_to_file (puuconf, ffile)
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pointer puuconf;
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boolean ffile;
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{
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int iuuconf;
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iuuconf = uuconf_logfile (puuconf, &zLogfile);
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if (iuuconf != UUCONF_SUCCESS)
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ulog_uuconf (LOG_FATAL, puuconf, iuuconf);
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#if DEBUG > 1
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iuuconf = uuconf_debugfile (puuconf, &zLdebugfile);
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if (iuuconf != UUCONF_SUCCESS)
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ulog_uuconf (LOG_FATAL, puuconf, iuuconf);
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#endif
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iuuconf = uuconf_statsfile (puuconf, &zLstatsfile);
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if (iuuconf != UUCONF_SUCCESS)
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ulog_uuconf (LOG_FATAL, puuconf, iuuconf);
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fLfile = ffile;
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}
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/* Set the ID number. This will be called by the usysdep_initialize
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if there is something sensible to set it to. */
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void
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ulog_id (i)
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int i;
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{
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iLid = i;
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}
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/* Set the user we are making log entries for. The arguments will be
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copied into memory. */
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void
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ulog_user (zuser)
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const char *zuser;
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{
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ubuffree (zLuser);
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zLuser = zbufcpy (zuser);
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}
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/* Set the system name we are making log entries for. The name is copied
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into memory. */
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void
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ulog_system (zsystem)
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const char *zsystem;
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{
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if (zsystem == NULL
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|| zLsystem == NULL
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|| strcmp (zsystem, zLsystem) != 0)
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{
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ubuffree (zLsystem);
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zLsystem = zbufcpy (zsystem);
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#if HAVE_HDB_LOGGING
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/* Under HDB logging we now must write to a different log file. */
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ulog_close ();
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#endif /* HAVE_HDB_LOGGING */
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}
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}
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/* Set the device name. This is copied into memory. */
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void
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ulog_device (zdevice)
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const char *zdevice;
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{
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ubuffree (zLdevice);
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zLdevice = zbufcpy (zdevice);
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}
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/* A helper function for ulog. */
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__inline__ static char *
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zstpcpy (zto, zfrom)
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char *zto;
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const char *zfrom;
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{
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while ((*zto++ = *zfrom++) != '\0')
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;
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return zto - 1;
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}
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/* Make a log entry. We make a token concession to non ANSI_C systems,
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but it clearly won't always work. */
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#if ! HAVE_PROTOTYPES || ! HAVE_STDARG_H
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#undef HAVE_VFPRINTF
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#define HAVE_VFPRINTF 0
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#endif
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/*VARARGS2*/
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#if HAVE_VFPRINTF
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void
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ulog (enum tlog ttype, const char *zmsg, ...)
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#else
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void
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ulog (ttype, zmsg, a, b, c, d, f, g, h, i, j)
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enum tlog ttype;
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const char *zmsg;
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#endif
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{
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#if HAVE_VFPRINTF
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va_list parg;
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#endif
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FILE *e, *edebug;
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boolean fstart, fend;
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const char *zhdr;
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char *zprefix;
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register char *zset;
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char *zformat;
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char *zfrom;
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/* Log any received signal. We do it this way to avoid calling ulog
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from the signal handler. A few routines call ulog to get this
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message out with zmsg == NULL. */
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{
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static boolean fdoing_sigs;
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if (! fdoing_sigs)
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{
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int isig;
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fdoing_sigs = TRUE;
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for (isig = 0; isig < INDEXSIG_COUNT; isig++)
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{
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if (afLog_signal[isig])
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{
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afLog_signal[isig] = FALSE;
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/* Apparently SunOS sends SIGINT rather than SIGHUP
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when hanging up, so we don't log either signal if
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fLog_sighup is FALSE. */
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if ((isig != INDEXSIG_SIGHUP && isig != INDEXSIG_SIGINT)
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|| fLog_sighup)
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ulog (LOG_ERROR, "Got %s signal", azSignal_names[isig]);
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}
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}
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fdoing_sigs = FALSE;
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}
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}
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#if DEBUG > 1
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/* If we've had a debugging file open in the past, then we want to
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write all log file entries to the debugging file even if it's
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currently closed. */
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if (fLfile
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&& eLdebug == NULL
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&& ! fLdebug_tried
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&& iDebug != 0)
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{
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fLdebug_tried = TRUE;
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eLdebug = esysdep_fopen (zLdebugfile, FALSE, TRUE, TRUE);
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}
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#endif /* DEBUG > 1 */
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if (! fLfile)
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e = stderr;
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#if DEBUG > 1
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else if ((int) ttype >= (int) LOG_DEBUG)
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{
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e = eLdebug;
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/* If we can't open the debugging file, don't output any
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debugging messages. */
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if (e == NULL)
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return;
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}
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#endif /* DEBUG > 1 */
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else
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{
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if (eLlog == NULL && ! fLlog_tried)
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{
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const char *zprint = NULL;
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fLlog_tried = TRUE;
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#if ! HAVE_HDB_LOGGING
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eLlog = esysdep_fopen (zLogfile, TRUE, TRUE, TRUE);
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zprint = zLogfile;
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#else /* HAVE_HDB_LOGGING */
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{
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const char *zsys;
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char *zbase;
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char *zlower;
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char *zfile;
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/* We want to write to .Log/program/system, e.g.
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.Log/uucico/uunet. The system name may not be set. */
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if (zLsystem == NULL)
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zsys = "ANY";
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else
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zsys = zLsystem;
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zbase = zsysdep_base_name (zProgram);
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if (zbase == NULL)
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zbase = zbufcpy (zProgram);
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/* On some systems the native uusched will invoke uucico
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with an upper case argv[0]. We work around that by
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forcing the filename to lower case here. */
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for (zlower = zbase; *zlower != '\0'; zlower++)
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if (isupper (*zlower))
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*zlower = tolower (*zlower);
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zfile = zbufalc (strlen (zLogfile)
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+ strlen (zbase)
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+ strlen (zsys)
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+ 1);
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sprintf (zfile, zLogfile, zbase, zsys);
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ubuffree (zbase);
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eLlog = esysdep_fopen (zfile, TRUE, TRUE, TRUE);
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if (eLlog != NULL)
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ubuffree (zfile);
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else
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zprint = zfile;
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}
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#endif /* HAVE_HDB_LOGGING */
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if (eLlog == NULL)
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{
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/* We can't open the log file. We report the problem to
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stderr. This is not ideal, since if this is uucico
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running on an inbound call stderr is actually
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connected to a remote system, but is better than
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doing nothing. */
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fprintf (stderr, "%s: %s: can not open log file: %s\n",
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zProgram, zprint, strerror (errno));
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if (pfLfatal != NULL)
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(*pfLfatal) ();
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usysdep_exit (FALSE);
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}
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}
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e = eLlog;
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/* eLlog might be NULL here because we might try to open the log
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file recursively via esysdep_fopen. */
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if (e == NULL)
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return;
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}
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if (zmsg == NULL)
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return;
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if (pfLstart != NULL)
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(*pfLstart) ();
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edebug = NULL;
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#if DEBUG > 1
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if ((int) ttype < (int) LOG_DEBUG)
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edebug = eLdebug;
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#endif
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fstart = TRUE;
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fend = TRUE;
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switch (ttype)
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{
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case LOG_NORMAL:
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zhdr = "";
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break;
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case LOG_ERROR:
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zhdr = "ERROR: ";
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break;
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case LOG_FATAL:
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zhdr = "FATAL: ";
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break;
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#if DEBUG > 1
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case LOG_DEBUG:
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zhdr = "DEBUG: ";
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break;
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case LOG_DEBUG_START:
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zhdr = "DEBUG: ";
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fend = FALSE;
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break;
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case LOG_DEBUG_CONTINUE:
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zhdr = NULL;
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fstart = FALSE;
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fend = FALSE;
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break;
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case LOG_DEBUG_END:
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zhdr = NULL;
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fstart = FALSE;
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break;
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#endif
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default:
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zhdr = "???: ";
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break;
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}
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if (! fstart)
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zprefix = zbufcpy ("");
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else
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{
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if (! fLfile)
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{
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zprefix = zbufalc (strlen (zProgram) + 3);
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sprintf (zprefix, "%s: ", zProgram);
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}
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else
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{
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zprefix = zbufalc (strlen (zProgram)
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+ (zLsystem == NULL ? 1 : strlen (zLsystem))
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+ (zLuser == NULL ? 4 : strlen (zLuser))
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+ sizeof "1991-12-31 12:00:00.00"
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+ strlen (zhdr)
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+ 100);
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zset = zprefix;
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#if HAVE_TAYLOR_LOGGING
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{
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char *zbase;
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zbase = zsysdep_base_name (zProgram);
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if (zbase == NULL)
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zbase = zbufcpy (zProgram);
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zset = zstpcpy (zset, zbase);
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*zset++ = ' ';
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ubuffree (zbase);
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}
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#else /* ! HAVE_TAYLOR_LOGGING */
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zset = zstpcpy (zset, zLuser == NULL ? "uucp" : zLuser);
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*zset++ = ' ';
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#endif /* HAVE_TAYLOR_LOGGING */
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zset = zstpcpy (zset, zLsystem == NULL ? "-" : zLsystem);
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*zset++ = ' ';
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#if HAVE_TAYLOR_LOGGING
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zset = zstpcpy (zset, zLuser == NULL ? "-" : zLuser);
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*zset++ = ' ';
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#endif /* HAVE_TAYLOR_LOGGING */
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*zset++ = '(';
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zset = zstpcpy (zset, zldate_and_time ());
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if (iLid != 0)
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{
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#if ! HAVE_HDB_LOGGING
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#if HAVE_TAYLOR_LOGGING
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sprintf (zset, " %d", iLid);
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#else /* ! HAVE_TAYLOR_LOGGING */
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sprintf (zset, "-%d", iLid);
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#endif /* ! HAVE_TAYLOR_LOGGING */
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#else /* HAVE_HDB_LOGGING */
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/* I assume that the second number here is meant to be
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some sort of file sequence number, and that it should
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correspond to the sequence number in the statistics
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file. I don't have any really convenient way to do
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this, so I won't unless somebody thinks it's very
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important. */
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sprintf (zset, ",%d,%d", iLid, 0);
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#endif /* HAVE_HDB_LOGGING */
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zset += strlen (zset);
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}
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#if QNX_LOG_NODE_ID
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sprintf (zset, " %ld", (long) getnid ());
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zset += strlen (zset);
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#endif
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*zset++ = ')';
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*zset++ = ' ';
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strcpy (zset, zhdr);
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}
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}
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zformat = zbufalc (2 * strlen (zprefix) + strlen (zmsg) + 2);
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zset = zformat;
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zfrom = zprefix;
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while (*zfrom != '\0')
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{
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if (*zfrom == '%')
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*zset++ = '%';
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*zset++ = *zfrom++;
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}
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ubuffree (zprefix);
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zset = zstpcpy (zset, zmsg);
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if (fend)
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{
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*zset++ = '\n';
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*zset = '\0';
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}
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#if HAVE_VFPRINTF
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va_start (parg, zmsg);
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vfprintf (e, zformat, parg);
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va_end (parg);
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if (edebug != NULL)
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{
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va_start (parg, zmsg);
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vfprintf (edebug, zformat, parg);
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va_end (parg);
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}
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#else /* ! HAVE_VFPRINTF */
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fprintf (e, zformat, a, b, c, d, f, g, h, i, j);
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if (edebug != NULL)
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fprintf (edebug, zformat, a, b, c, d, f, g, h, i, j);
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#endif /* ! HAVE_VFPRINTF */
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ubuffree (zformat);
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(void) fflush (e);
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if (edebug != NULL)
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(void) fflush (edebug);
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if (pfLend != NULL)
|
||
(*pfLend) ();
|
||
|
||
if (ttype == LOG_FATAL)
|
||
{
|
||
if (pfLfatal != NULL)
|
||
(*pfLfatal) ();
|
||
usysdep_exit (FALSE);
|
||
}
|
||
|
||
#if CLOSE_LOGFILES
|
||
ulog_close ();
|
||
#endif
|
||
}
|
||
|
||
/* Log a uuconf error. */
|
||
|
||
void
|
||
ulog_uuconf (ttype, puuconf, iuuconf)
|
||
enum tlog ttype;
|
||
pointer puuconf;
|
||
int iuuconf;
|
||
{
|
||
char ab[512];
|
||
|
||
(void) uuconf_error_string (puuconf, iuuconf, ab, sizeof ab);
|
||
ulog (ttype, "%s", ab);
|
||
}
|
||
|
||
/* Close the log file. There's nothing useful we can do with errors,
|
||
so we don't check for them. */
|
||
|
||
void
|
||
ulog_close ()
|
||
{
|
||
/* Make sure we logged any signal we received. */
|
||
ulog (LOG_ERROR, (const char *) NULL);
|
||
|
||
if (eLlog != NULL)
|
||
{
|
||
(void) fclose (eLlog);
|
||
eLlog = NULL;
|
||
fLlog_tried = FALSE;
|
||
}
|
||
|
||
#if DEBUG > 1
|
||
if (eLdebug != NULL)
|
||
{
|
||
(void) fclose (eLdebug);
|
||
eLdebug = NULL;
|
||
fLdebug_tried = FALSE;
|
||
}
|
||
#endif
|
||
}
|
||
|
||
/* Add an entry to the statistics file. We may eventually want to put
|
||
failed file transfers in here, but we currently do not. */
|
||
|
||
/*ARGSUSED*/
|
||
void
|
||
ustats (fsucceeded, zuser, zsystem, fsent, cbytes, csecs, cmicros, fcaller)
|
||
boolean fsucceeded;
|
||
const char *zuser;
|
||
const char *zsystem;
|
||
boolean fsent;
|
||
long cbytes;
|
||
long csecs;
|
||
long cmicros;
|
||
boolean fcaller;
|
||
{
|
||
long cbps;
|
||
|
||
/* The seconds and microseconds are now counted independently, so
|
||
they may be out of synch. */
|
||
if (cmicros < 0)
|
||
{
|
||
csecs -= ((- cmicros) / 1000000L) + 1;
|
||
cmicros = 1000000L - ((- cmicros) % 1000000L);
|
||
}
|
||
if (cmicros >= 1000000L)
|
||
{
|
||
csecs += cmicros / 10000000L;
|
||
cmicros = cmicros % 1000000L;
|
||
}
|
||
|
||
/* On a system which can determine microseconds we might very well
|
||
have both csecs == 0 and cmicros == 0. */
|
||
if (csecs == 0 && cmicros < 1000)
|
||
cbps = 0;
|
||
else
|
||
{
|
||
long cmillis, cdiv, crem;
|
||
|
||
/* Compute ((csecs * 1000) / cmillis) using integer division.
|
||
Where DIV is integer division, we know
|
||
a = (a DIV b) * b + a % b
|
||
so
|
||
a / b = (a DIV b) + (a % b) / b
|
||
We compute the latter with a as csecs and b as cmillis,
|
||
mixing the multiplication by 1000. */
|
||
cmillis = csecs * 1000 + cmicros / 1000;
|
||
cdiv = (cbytes / cmillis) * 1000;
|
||
crem = (cbytes % cmillis) * 1000;
|
||
cbps = cdiv + (crem / cmillis);
|
||
if (cmillis < 0 || cdiv < 0 || crem < 0 || cbps < 0)
|
||
{
|
||
/* We overflowed using milliseconds, so use seconds. */
|
||
cbps = cbytes / (csecs + ((cmicros > 500000L) ? 1 : 0));
|
||
}
|
||
}
|
||
|
||
if (eLstats == NULL)
|
||
{
|
||
if (fLstats_tried)
|
||
return;
|
||
fLstats_tried = TRUE;
|
||
eLstats = esysdep_fopen (zLstatsfile, TRUE, TRUE, TRUE);
|
||
if (eLstats == NULL)
|
||
return;
|
||
}
|
||
|
||
#if HAVE_TAYLOR_LOGGING
|
||
fprintf (eLstats,
|
||
"%s %s (%s) %s%s %ld bytes in %ld.%03ld seconds (%ld bytes/sec) on port %s\n",
|
||
zuser, zsystem, zldate_and_time (),
|
||
fsucceeded ? "" : "failed after ",
|
||
fsent ? "sent" : "received",
|
||
cbytes, csecs, cmicros / 1000, cbps,
|
||
zLdevice == NULL ? "unknown" : zLdevice);
|
||
#endif /* HAVE_TAYLOR_LOGGING */
|
||
#if HAVE_V2_LOGGING
|
||
fprintf (eLstats,
|
||
"%s %s (%s) (%ld) %s %s %ld bytes %ld seconds\n",
|
||
zuser, zsystem, zldate_and_time (),
|
||
(long) time ((time_t *) NULL),
|
||
fsent ? "sent" : "received",
|
||
fsucceeded ? "data" : "failed after",
|
||
cbytes, csecs + cmicros / 500000);
|
||
#endif /* HAVE_V2_LOGGING */
|
||
#if HAVE_HDB_LOGGING
|
||
{
|
||
static int iseq;
|
||
|
||
/* I don't know what the 'C' means. The sequence number should
|
||
probably correspond to the sequence number in the log file, but
|
||
that is currently always 0; using this fake sequence number
|
||
will still at least reveal which transfers are from different
|
||
calls. */
|
||
++iseq;
|
||
fprintf (eLstats,
|
||
"%s!%s %c (%s) (C,%d,%d) [%s] %s %ld / %ld.%03ld secs, %ld%s%s\n",
|
||
zsystem, zuser, fcaller ? 'M' : 'S', zldate_and_time (),
|
||
iLid, iseq, zLdevice == NULL ? "unknown" : zLdevice,
|
||
fsent ? "->" : "<-",
|
||
cbytes, csecs, cmicros / 1000, cbps,
|
||
" bytes/sec",
|
||
fsucceeded ? "" : " [PARTIAL FILE]");
|
||
}
|
||
#endif /* HAVE_HDB_LOGGING */
|
||
|
||
(void) fflush (eLstats);
|
||
|
||
#if CLOSE_LOGFILES
|
||
ustats_close ();
|
||
#endif
|
||
}
|
||
|
||
/* Close the statistics file. */
|
||
|
||
void
|
||
ustats_close ()
|
||
{
|
||
if (eLstats != NULL)
|
||
{
|
||
if (fclose (eLstats) != 0)
|
||
ulog (LOG_ERROR, "fclose: %s", strerror (errno));
|
||
eLstats = NULL;
|
||
fLstats_tried = FALSE;
|
||
}
|
||
}
|
||
|
||
/* Return the date and time in a form used for a log entry. */
|
||
|
||
static const char *
|
||
zldate_and_time ()
|
||
{
|
||
long isecs, imicros;
|
||
struct tm s;
|
||
#if HAVE_TAYLOR_LOGGING
|
||
static char ab[sizeof "1991-12-31 12:00:00.00"];
|
||
#endif
|
||
#if HAVE_V2_LOGGING
|
||
static char ab[sizeof "12/31-12:00"];
|
||
#endif
|
||
#if HAVE_HDB_LOGGING
|
||
static char ab[sizeof "12/31-12:00:00"];
|
||
#endif
|
||
|
||
isecs = ixsysdep_time (&imicros);
|
||
usysdep_localtime (isecs, &s);
|
||
|
||
#if HAVE_TAYLOR_LOGGING
|
||
sprintf (ab, "%04d-%02d-%02d %02d:%02d:%02d.%02d",
|
||
s.tm_year + 1900, s.tm_mon + 1, s.tm_mday, s.tm_hour,
|
||
s.tm_min, s.tm_sec, (int) (imicros / 10000));
|
||
#endif
|
||
#if HAVE_V2_LOGGING
|
||
sprintf (ab, "%d/%d-%02d:%02d", s.tm_mon + 1, s.tm_mday,
|
||
s.tm_hour, s.tm_min);
|
||
#endif
|
||
#if HAVE_HDB_LOGGING
|
||
sprintf (ab, "%d/%d-%d:%02d:%02d", s.tm_mon + 1, s.tm_mday,
|
||
s.tm_hour, s.tm_min, s.tm_sec);
|
||
#endif
|
||
|
||
return ab;
|
||
}
|