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path: root/support/dktools/dk4applog.ctr
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%%	options

copyright owner	=	Dirk Krause
copyright year	=	2015-xxxx
license		=	bsd


%%	module


#ifndef DK4APP_H_INCLUDED
#include "dk4app.h"
#endif

#ifndef DK4CONST_H_INCLUDED
#include "dk4const.h"
#endif

#ifndef DK4TIME_H_INCLUDED
#include "dk4time.h"
#endif

#ifndef DK4TIMEDK_H_INCLUDED
#include "dk4timedk.h"
#endif

#ifndef DK4MAODD_H_INCLUDED
#include "dk4maodd.h"
#endif

#ifndef DK4FPUT_H_INCLUDED
#include "dk4fput.h"
#endif

#ifndef DK4MEM_H_INCLUDED
#include "dk4mem.h"
#endif

#ifndef DK4FOP8_H_INCLUDED
#include "dk4fopc8.h"
#endif

#ifndef DK4FOPD_H_INCLUDED
#include "dk4fopd.h"
#endif

#ifndef DK4MAODD_H_INCLUDED
#include "dk4maodd.h"
#endif

#ifndef DK4ENC_H_INCLUDED
#include "dk4enc.h"
#endif

#ifndef	DK4APPMKDH_H_INCLUDED
#include "dk4appmkdh.h"
#endif

#ifndef	DK4MPL_H_INCLUDED
#include "dk4mpl.h"
#endif

#ifndef	DK4FS_H_INCLUDED
#include "dk4fs.h"
#endif



$!trace-include



/**	Constant char texts used by the module, not localized.
*/
static const dkChar * const	dk4app_log_kwnl[] = {
$!string-table	macro=dkT
#
#	0 1	File opening modes
#
w
a
#
#	2	Name of debug string table file
#
dk4debug.str
#
#	3 4	Indicator for missing information or deactivated option
#
-
+
#
#	5 ... 13	Encoding names
#
ascii
ansi
utf-8
utf-16
utf-16-le
utf-16-be
c32
c32-le
c32-be
#
#	14 15
#
dk3pref.conf
dk4pref.conf
$!end
};



/**	The message texts for the base log domain, nearly always loaded.
*/
static const dkChar * const	dk4app_def_msg_base[] = {
$!string-table macro=dkT
#
#	0	Log level: Never reached.
#
NONE
#
#	1	Log level: Panic - Should shut down computer
#
Panic
#
#	2	Log level: Fatal error - Should abort program
#
Fatal
#
#	3	Log level: Error
#
Error
#
#	4	Log level: Warning
#
Warning
#
#	5	Log level: Information
#
Info
#
#	6	Log level: Progress message
#
Progress
#
#	7	Log level: Debug message
#
Debug
#
#	8	Log level: Ignore message, do not write text
#
Ignore
#
#	9  10	ERROR: Illegal option!
#
Illegal option: "
"!
#
#	11 12	ERROR: Option requires argument!
#
Option "
" requires argument!
#
#	13 14 15	ERROR: Option requires boolean argument...
#
Option "
" requires a boolean argument!\n\tRejected text: "
"!
#
#	16 17 18	ERROR: Option requires size argument...
#
Option "
" requires a size argument!\n\tRejected text: "
"!
#
#	19 20 21	ERROR: Option requires integer argument...
#
Option "
" requires integer argument!\n\tRejected text: "
"!
#
#	22 23 24	ERROR: Option requires unsigned integer argument...
#
Option "
" requires unsigned integer argument!\n\tRejected text: "
"!
#
#	25 26 27	ERROR: Option requires double argument...
#
Option "
" requires floating point (double) argument!\n\tRejected text: "
"!
#
#	28 	ERROR: Long option requires argument
#
Option "--
#
#	29	ERROR: Long option requires double argument
#
Option "--
#
#	30	ERROR: Long option requires unsigned integer argument
#
Option "--
#
#	31	ERROR: Long option requires integer argument
#
Option "--
#
#	32	ERROR: Long option requires size specification
#
Option "--
#
#	33	ERROR: Long option requires boolean argument
#
Option "--
#
#	34 35 36	ERROR: Failed to save preference value
#
Failed to save preference value!\n\t"
"="
"!
#
#	37 38		ERROR: Value required for preference.
#
Value required for command line preference "
"!
#
#	39 40	ERROR: Option too long
#
Option too long!\n\t"
"!
#
#	41
#
Failed to remove file:\n\t"
#
#	42	ENAMETOOLONG Reason for error
#
"!\n\tPath name too long.
#
#	43 44 45
#
Failed to create directory:\n\t"
"!\n\tPath exists, but is not a directory!
\n\tLocal network interface is down!
#
#	46 47
#
Failed to create directory:\n\t"
"!\n\tIllegal path.
#
#	48	Reason for error
#
"!\n\tFile or directory in use.
#
#	49	Reason for error
#
"!\n\tPath already exists.
#
#	50	Reason for error
#
"!\n\tPath name points outside accessible address space.
#
#	51	ENOENT	Reason for error.
#
"!\n\tPath not found (one path component does not exist).
#
#	52	Reason for error
#
"!\n\tPath specifies a directory.
#
#	53	Reason for error
#
"!\n\tNo function for wide-char mkdir available.
#
#	54
#
No wide-char function to remove files available.
#
#	55	EACCESS ERROR_ACCESS_DENIED
#
"!\n\tInsufficient permissions.
#
#	56 57
#
"!\n\tFile system is mounted read-only.
"!\n\tConflict with extended attribute.
#
#	58 59
#
"!\n\tNot allowed for this file system type.
"!\n\tI/O error on device.
#
#	60
#
"!\n\tDisk space or quota problem.
#
#	61	ELOOP	Too many symbolic links in path
#
"!\n\tToo many symbolic links in path (probably symlink loop).
#
#	62 63
#
"!\n\tInsufficient kernel memory.
"!\n\tToo many entries in parent directory.
#
#	64 65
#
"!\n\tFile server not available.
"!\n\tName too long.
#
#	66 67
#
Failed to remove directory:\n\t"
"!\n\tDirectory not empty.
#
#	68 69
#
"!\n\tInvalid path name.
"!\n\tWindows error code: 
#
#	70 71
#
 (0x
).
#
#	72 73
#
"!
"!\n\tParent directory not found (device or server share)!
#
#	74 75
#
"!\n\tBad network resource name (share name)!
"!\n\tBad network resource name (server name)!
#
#	76 77
#
\n\tNo route to network destination available!
"!
#
#	78	EOVERFLOW
#
\n\tAttempt to read from outside file!
#
#	79 80
#
"!\n\tError code: 
.
#
#	81
#
Options --help, --version, and --license are mutually exclusive!
#
#	82 83 84 85
#
Numeric overflow in size calculation!
Numeric overflow in size calculation!\n\t
 elements of 
 bytes.
#
#	86 87 88 89
#
Memory allocation failed! Invalid size(s) specified.
Memory allocation failed! Invalid size(s) specified.\n\tNumber of elements: 
, element size: 
.
#
#	90 91 92 93
#
Not enough memory! Allcation failed.
Not enough memory! Allcation failed.\n\tNumber of elements: 
, element size: 
.
#
#	94 95
#
Further file removal attempts failed in:\n\t"
"!
#
#	96 97
#
Further subdirectory removal attempts failed in:\n\t"
"!
#
#	98 99
#
File or directory name too long:\n\t"
"!
#
#	100 101 102 103 104 105 106 107
#
Failed to expand file name:\n\t"
"!
"!\n\tNo function for directory traversal available!
"!\n\tMemory allocation failed!
"!\n\tFailed to open directory for traversal!
"!\n\tDirectory or file name too large!
"!\n\tMultiple matching files!
"!\n\tNo matching file!
#
#	108	ERROR: Failed to open file...
#
Failed to open file:\n\t"
#
#	109 110 111 112 113 114	115 116 Error: Not a regular file
#
"!\n\tNot a regular file!
"!\n\tPath contains symbolic links!
"!\n\tPath is a symbolic link!
"!\n\tSymbolic link owner is not target owner!
"!\n\tSignal received!
"!\n\tToo many open files in process!
"!\n\tToo many open files on system!
"!\n\tDevice for special file does not exist!
#
#	117	EOVERFLOW
#
"!\n\tFile size too large for off_t data type!
#
#	118 119 120 Read operation failed
#
Read operation failed!
Read operation failed, error code:
.
#
#	121	EAGAIN / EWOULDBLOCK
#
\n\tOperation would block!
#
#	122	EBADF
#
\n\tBad file descriptor (bug)!
#
#	123	EFAULT
#
\n\tBuffer is outside usable address space (bug)!
#
#	124	EINTR
#
\n\tSignal received!
#
#	125	EINVAL
#
\n\tFile descriptor attached to unsuitable object (bug)!
#
#	126	EIO
#
\n\tI/O error!
#
#	127	EISDIR
#
\n\tFile descriptor attachted to directory (bug)!
#
#	128 - 130	Error: Write operation failed
#
Write operation failed!
Write operation failed, error code:
.
#
#	131	ENOSPC
#
\n\tNo space left on device!
#
#	132	EFBIG
#
\n\tFile size would exceed limits!
#
#	133	EPIPE
#
\n\tNo reader attached to pipe or socket!
#
#	134	ECONNRESET
#
\n\tSocket not connected!
#
#	135	ERANGE
#
\n\tBuffer size outside supported range!
#
#	136	ENOBUFS
#
\n\tInsufficient system resources available!
#
#	137	ENXIO
#
\n\tNonexistent or incapable device!
#
#	138	EACCES
#
\n\tInsufficient permissions!
#
#	139	EBADMSG
#
\n\tUnexpected control part in normal-mode message!
#
#	140	ECONNRESET
#
\n\tConnection reset by peer!
#
#	141	ETIMEDOUT
#
\n\tTimed out!
#
#	142	ENOMEM
#
\n\tInsufficient memory available!
#
#	143	ESPIPE
#
\n\tFile descriptor is socket or FIFO!
#
#	144	Failed to open directory!
#
Failed to open directory:\n\t"
#
#	145 146	147 148 DK4_E_NOT_SUPPORTED
#
"!\n\tNo function found for directory traversal!
"!\n\tNumeric overflow in size calculation!
"!\n\tPath not found!
"!\n\tDirectory does not exist!
#
#	149	Failed to obtain information about file or directory
#
Failed to obtain information about file/directory:\n\t"
#
#	150	ENOTDIR
#
"!\n\tOne path component is not a directory.
#
#	151	ERROR_SHARING_VIOLATION
#
"!\n\tCurrently used by another process.
#
#	152 153	ERROR: Not a directory
#
Not a directory:\n\t"
"!
#
#	154	ERROR text ... in ...
#
" in "
#
#	155 156 157 158
#
Failed to change file buffering!
Failed to change buffering for file\n"
"!
Neither setvbuf() nor setbuffer() function available!
#
#	159
#
Syntax error, expected line:\n"name = width height [border-left border-right border-top border-bottom]"
#
#	160 161 162
#
Preference value found: "
"="
".
#
#	163 164 165
#
Preference value too long: "
"="
"!
#
#	166 167
#
Preference value not found: "
"!
$!end
};



static const dkChar * const	dk4app_def_msg_debug[] = {
$!string-table	macro=dkT
#
#	0 ... 20	Log texts to show at startup
#
Host name:       
User name:       
Home directory:  
Language:        
Region:          
Encoding:        
Encoding expected on standard input: 
Encoding expected on files:          
Program name:    
Program group:   
Directory etc:   
Directory bin:   
Directory share: 
Directory lib:   
Directory var:   
Directory tmp:   
Logging enabled:            
Log file:        
Log level to log on stderr: 
Log level to log to file:   
Log level to keep log file: 
#
#	21 22 23	Debug messages for data file search.
#
Data file search for "
" failed.
" succeeded.\n\t
#
#	24		Debug messages for configuration file search.
#
Configuration file search for "
#
#	25 26 27	Delete directory or file.
#
Delete directory: 
Delete file: 
Delete file or directory: 
#
#	28 29		Preference files: , empty string
#
Preference files:
UNUSED
#
#	30 31
#
+ 
- 
#
#	32 33 34 35
#
Search for data file "
Search for configuration file "
" (compression allowed):
" (no compression allowed):
#
#	36	Collecting paper size data
#
Collecting paper size data.
#
#	37 38 39	Compression types allowed
#
" (gzip compression allowed):
" (bzip2 compression allowed):
" (gzip/bzip2 compression allowed):
#
#	40 41
#
String copy allocated: "
".
#
#	42 43
#
Successfully converted to integer.
Not an integer!
#
#	44 45
#
Successfully converted to unsigned integer.
Not an unsigned integer!
#
#	46 47
#
Successfully converted to boolean.
Not a boolean!
#
#	48 49
#
Successfully converted to size specification.
Not a size specification!
$!end
};



/**	Ensure the messages texts for the base log domain are loaded.
	@param	app	Application structure.
	@param	logdom	Log text domain.
*/
static
void
dk4app_log_load_base_texts(dk4_app_t *app)
{
  $? "+ dk4app_log_load_base_texts"
  if (NULL != app) {			$? ". app"
    if ((NULL == app->msg_base) || (0 == app->sz_msg_base)) {
      $? ". read string table"
      app->sz_msg_base = dk4app_string_table_size(dk4app_def_msg_base);
      app->msg_base = dk4app_string_table(
	app, dkT("dk4base.str"), dk4app_def_msg_base
      );
    } else {				$? ". already available"
    }
  } else {				$? "! app"
  } $? "- dk4app_log_load_base_texts"
}



/**	Check whether there is at least one non-NULL pointer in array.
	CRT on Windows: Not used.
	@param	msg	Array to check.
	@param	sz	Size of array.
	@return	1 if any valid pointer was found, 0 otherwise.
*/
static
int
dk4app_log_any_non_null(const dkChar * const  *msg, size_t sz)
{
  size_t	i;
  int		back = 0;
  for (i = 0; ((i < sz) && (0 == back)); i++) {
    if (NULL != msg[i]) { back = 1; }
  }
  return back;
}



int
dk4app_log_do(dk4_app_t *app, int ll)
{
  int		 back = 0;
  if (NULL != app) {
#if (!(DK4_ON_WINDOWS && DK4_WIN_DENY_CRT))
    if (0 != app->log_enabled) {
      if (app->ll_stderr >= ll) {
        back = 1;
      }
      if (app->ll_file >= ll) {
        back = 1;
      }
    }
#endif
  }
  return back;
}



/**	Log multi part message to one file.
	CRT on Windows: Required.
	@param	app		Application structure, may be NULL.
	@param	priority	Log priority.
	@param	msg		Pointer to message parts array.
	@param	sz		Number of message parts.
	@param	outfile		Output file
	@param	showtime	Flag: Show timestamp.
	@param	timer		Timestamp of previous log message if any.
	@param	havetime	Flag: Timer already contains a value.
*/
static
void
dk4app_log_msg_to_file(
  dk4_app_t		*app,
  int			 priority,
  const dkChar * const	*msg,
  size_t		 sz,
  FILE			*outfile,
  int			 showtime,
  dk4_time_t		*timer,
  int			*havetime
)
{
#if (!(DK4_ON_WINDOWS && DK4_WIN_DENY_CRT))
  dkChar	 lnb[64];
  dkChar	 buf[64];
  size_t	 i;
  dk4_time_t	 ct;
  int		 res;

  dk4time_get(&ct);
  /* Print timestamp */
  if ((0 != showtime) && ((0 == *havetime) || (ct != *timer))) {
    *havetime = 1;
    *timer = ct;
    if (0 != dk4time_as_text(buf, DK4_SIZEOF(buf,dkChar), &ct, NULL)) {
      dk4fputs(dkT("# "), outfile, NULL);
      dk4fputs(buf, outfile, NULL);
      dk4fputc(dkT('\n'), outfile, NULL);
    }
  }
  /* Print error position */
  if (NULL != app->source_file_name) {
    dk4fputs(app->source_file_name, outfile, NULL);
    dk4fputc(dkT(':'), outfile, NULL);
    if ((dk4_um_t)0UL != app->source_file_line) {
      res = dk4ma_write_decimal_unsigned(
        lnb, DK4_SIZEOF(lnb,dkChar), app->source_file_line, 0, NULL
      );
      if (0 != res) {
        dk4fputs(lnb, outfile, NULL);
	dk4fputc(dkT(':'), outfile, NULL);
      }
    }
    dk4fputc(dkT(' '), outfile, NULL);
  }
  /* Print message */
  switch (priority) {
    case DK4_LL_PANIC:
    case DK4_LL_FATAL:
    case DK4_LL_ERROR:
    case DK4_LL_WARNING:
    {
      dk4fputs((app->msg_base)[priority], outfile, NULL);
      dk4fputs(dkT(": "), outfile, NULL);
    } break;
  }
  for (i = 0; i < sz; i++) {
    dk4fputs(msg[i], outfile, NULL);
  }
  dk4fputc(dkT('\n'), outfile, NULL);
  fflush(outfile);
#endif
}



void
dk4app_log_msg(
  dk4_app_t		*app,
  int			 priority,
  const dkChar * const	*msg,
  size_t		 sz
)
{
  FILE		*fipo;

  if (NULL != app) {
    if (0 != dk4app_log_do(app, priority)) {
      dk4app_log_load_base_texts(app);
      if (0 != dk4app_log_any_non_null(msg, sz)) {
#if (!(DK4_ON_WINDOWS && DK4_WIN_DENY_CRT))
        if (app->ll_stderr >= priority) {
	  if (0 == app->have_stderr_init) {
	    dk4fput_initialize_stderr();
	    app->have_stderr_init = 1;
	  }
	  dk4app_log_msg_to_file(
	    app, priority, msg, sz, stderr,
	    app->log_stderr_time, &(app->timer_stderr), &(app->have_stderr_time)
	  );
        }
        if (app->ll_file >= priority) {
	  if (NULL != app->log_file_name) {
#if VERSION_BEFORE_20160127
#else
	    if (0 == app->have_file_opened) {
	      (void)dk4app_mkdir_hierarchy(app->log_file_name, 0, NULL);
	    }
#endif
	    fipo = dk4fopen(
	      app->log_file_name,
	      dk4app_log_kwnl[(0 != app->have_file_opened) ? 1 : 0],
	      (DK4_FOPEN_SC_WR_SYMLINK_OWNER | DK4_FOPEN_SC_IS_REGULAR),
	      NULL
	    );
	    app->have_file_opened = 1;
	    if (NULL != fipo) {
	      dk4app_log_msg_to_file(
	        app, priority, msg, sz, fipo,
	        app->log_stderr_time, &(app->timer_file), &(app->have_file_time)
	      );
	      fclose(fipo);
	    }
	  }
        }
        if (priority < app->ll_found) {
          app->ll_found = priority;
        }
#endif
      }
    }
  }
}



void
dk4app_log_1(
  dk4_app_t		*app,
  const dkChar * const	*msg,
  size_t		 sz_msg,
  int		 	 priority,
  size_t	 	 msgind
)
{
  const dkChar	*msgtext;
  if (NULL != app) {
    if (0 != dk4app_log_do(app, priority)) {
      dk4app_log_load_base_texts(app);
      if ((NULL != msg) && (0 < sz_msg) && (msgind < sz_msg)) {
        msgtext = msg[msgind];
	dk4app_log_msg(app, priority, &msgtext, 1);
      }
    }
  }
}



void
dk4app_log_2(
  dk4_app_t		*app,
  const dkChar * const	*msg,
  size_t		 sz_msg,
  int		 	 priority,
  size_t	 	 i1,
  const dkChar		*t1
)
{
  const dkChar	*msgtext[3];
  if (NULL != app) {
    if (0 != dk4app_log_do(app, priority)) {
      dk4app_log_load_base_texts(app);
      if ((NULL != msg) && (0 < sz_msg) && (i1 < sz_msg)) {
        msgtext[0] = msg[i1];
	msgtext[1] = t1;
	dk4app_log_msg(app, priority, msgtext, 2);
      }
    }
  }
}



void
dk4app_log_3(
  dk4_app_t		*app,
  const dkChar * const	*msg,
  size_t		 sz_msg,
  int		 	 priority,
  size_t	 	 i1,
  size_t		 i2,
  const dkChar		*t1
)
{
  const dkChar	*msgtext[3];
  if (NULL != app) {
    if (0 != dk4app_log_do(app, priority)) {
      dk4app_log_load_base_texts(app);
      if ((NULL != msg) && (0 < sz_msg) && (i1 < sz_msg) && (i2 < sz_msg)) {
        msgtext[0] = msg[i1];
	msgtext[1] = t1;
	msgtext[2] = msg[i2];
	dk4app_log_msg(app, priority, msgtext, 3);
      }
    }
  }
}



void
dk4app_log_5(
  dk4_app_t		*app,
  const dkChar * const	*msg,
  size_t		 sz_msg,
  int		 	 priority,
  size_t	 	 i1,
  size_t		 i2,
  size_t		 i3,
  const dkChar		*t1,
  const dkChar		*t2
)
{
  const dkChar	*msgtext[5];
  if (NULL != app) {
    if (0 != dk4app_log_do(app, priority)) {
      dk4app_log_load_base_texts(app);
      if ((NULL != msg) && (0 < sz_msg) && (i1 < sz_msg) && (i2 < sz_msg)) {
        msgtext[0] = msg[i1];
	msgtext[1] = t1;
	msgtext[2] = msg[i2];
	msgtext[3] = t2;
	msgtext[4] = msg[i3];
	dk4app_log_msg(app, priority, msgtext, 5);
      }
    }
  }
}



void
dk4app_log_7(
  dk4_app_t		*app,
  const dkChar * const	*msg,
  size_t		 sz_msg,
  int		 	 priority,
  size_t	 	 i1,
  size_t		 i2,
  size_t		 i3,
  size_t		 i4,
  const dkChar		*t1,
  const dkChar		*t2,
  const dkChar		*t3
)
{
  const dkChar	*msgtext[7];
  if (NULL != app) {
    if (0 != dk4app_log_do(app, priority)) {
      dk4app_log_load_base_texts(app);
      if (
        (NULL != msg)
	&& (0 < sz_msg) && (i1 < sz_msg) && (i2 < sz_msg) && (i3 < sz_msg)
      )
      {
        msgtext[0] = msg[i1];
	msgtext[1] = t1;
	msgtext[2] = msg[i2];
	msgtext[3] = t2;
	msgtext[4] = msg[i3];
	msgtext[5] = t3;
	msgtext[6] = msg[i4];
	dk4app_log_msg(app, priority, msgtext, 7);
      }
    }
  }
}



void
dk4app_log_base1(
  dk4_app_t	*app,
  int		 priority,
  size_t	 msgind
)
{
  if (NULL != app) {
    if (0 != dk4app_log_do(app, priority)) {
      dk4app_log_load_base_texts(app);
      dk4app_log_1(app, app->msg_base, app->sz_msg_base, priority, msgind);
    }
  }
}



void
dk4app_log_base2(
  dk4_app_t	*app,
  int		 priority,
  size_t	 i1,
  const dkChar	*t1
)
{
  if (NULL != app) {
    if (0 != dk4app_log_do(app, priority)) {
      dk4app_log_load_base_texts(app);
      dk4app_log_2(app,app->msg_base,app->sz_msg_base,priority,i1,t1);
    }
  }
}



void
dk4app_log_base2c(
  dk4_app_t	*app,
  int		 priority,
  size_t	 i1,
  size_t	 i2
)
{
  const dkChar *msgptr[2];
  if (NULL != app) {
    if (0 != dk4app_log_do(app, priority)) {
      if ((app->sz_msg_base > i1) && (app->sz_msg_base > i2)) {
        dk4app_log_load_base_texts(app);
        msgptr[0] = (app->msg_base)[i1];
	msgptr[1] = (app->msg_base)[i2];
	dk4app_log_msg(app, priority, msgptr, 2);
      }
    }
  }
}



void
dk4app_log_base3(
  dk4_app_t	*app,
  int		 priority,
  size_t	 i1,
  size_t	 i2,
  const dkChar	*t1
)
{
  if (NULL != app) {
    if (0 != dk4app_log_do(app, priority)) {
      dk4app_log_load_base_texts(app);
      dk4app_log_3(app,app->msg_base,app->sz_msg_base,priority,i1,i2,t1);
    }
  }
}



void
dk4app_log_base5(
  dk4_app_t	*app,
  int		 priority,
  size_t	 i1,
  size_t	 i2,
  size_t	 i3,
  const dkChar	*t1,
  const dkChar	*t2
)
{
  if (NULL != app) {
    if (0 != dk4app_log_do(app, priority)) {
      dk4app_log_load_base_texts(app);
      dk4app_log_5(app,app->msg_base,app->sz_msg_base,priority,i1,i2,i3,t1,t2);
    }
  }
}



void
dk4app_log_base7(
  dk4_app_t	*app,
  int		 priority,
  size_t	 i1,
  size_t	 i2,
  size_t	 i3,
  size_t	 i4,
  const dkChar	*t1,
  const dkChar	*t2,
  const	dkChar	*t3
)
{
  if (NULL != app) {
    if (0 != dk4app_log_do(app, priority)) {
      dk4app_log_load_base_texts(app);
      dk4app_log_7(
        app,app->msg_base,app->sz_msg_base,priority,i1,i2,i3,i4,t1,t2,t3
      );
    }
  }
}



void
dk4app_log_with_errno(
  dk4_app_t	*app,
  int		 priority,
  size_t	 i1,
  size_t	 i2,
  size_t	 i3,
  size_t	 i4,
  size_t	 i5,
  const dkChar	*t1,
  int		 errn
)
{
  dkChar	 enb[64];
  int		 res;
  if (NULL != app) {
    res = dk4ma_write_decimal_signed(
      enb, DK4_SIZEOF(enb,dkChar), (dk4_im_t)errn, 0, NULL
    );
    if (0 != res) {
      dk4app_log_base5(app, priority, i1, i2, i3, t1, enb);
    } else {
      dk4app_log_base3(app, priority, i4, i5, t1);
    }
  }
}



const dkChar *
dk4app_get_log_source_file(dk4_app_t *app)
{
  const dkChar	*back	= NULL;
  if (NULL != app) {
    back = app->source_file_name;
  }
  return back;
}



dk4_um_t
dk4app_get_log_source_line(dk4_app_t *app)
{
  dk4_um_t	back = (dk4_um_t)0UL;
  if (NULL != app) {
    back = app->source_file_line;
  }
  return back;
}



void
dk4app_set_log_source_file(dk4_app_t *app, const dkChar *fn)
{
  if (NULL != app) {
    app->source_file_name = fn;
  }
}



void
dk4app_set_log_source_line(dk4_app_t *app, dk4_um_t lineno)
{
  if (NULL != app) {
    app->source_file_line = lineno;
  }
}



const dkChar * const *
dk4app_log_debug_texts(dk4_app_t *app, size_t *szptr)
{
  const dkChar * const	*back	=	NULL;
  $? "+ dk4app_log_debug_texts"
  if (NULL != app) {			$? ". app"
    dk4app_log_load_base_texts(app);
    if ((NULL != app->msg_debug) && (0 < app->sz_msg_debug)) {
      back = app->msg_debug;		$? ". already loaded"
    } else {				$? ". must load"
      app->msg_debug = dk4app_string_table(
        app, dk4app_log_kwnl[2], dk4app_def_msg_debug
      );
      app->sz_msg_debug = dk4app_string_table_size(app->msg_debug);
      back = app->msg_debug;
    }
  } else {				$? "! app"
    back = dk4app_def_msg_debug;
  }
  if (NULL != szptr) {
    *szptr = dk4app_string_table_size(dk4app_def_msg_debug);
  }
  $? "- dk4app_log_debug_texts"
  return back;
}



static
void
dk4app_log_two_strings_at_startup(
  dk4_app_t	*app,
  const dkChar	*title,
  const dkChar	*value
)
{
  const dkChar	*msg[3];
  msg[0] = title;
  msg[1] = value;
  if (NULL == value) {
    msg[1] = dk4app_log_kwnl[3];
  }
  msg[2] = NULL;
  dk4app_log_msg(app, DK4_LL_DEBUG, msg, 2);
}



static
void
dk4app_log_startup_log_level(
  dk4_app_t	*app,
  const dkChar	*title,
  int		 ll
)
{
  const dkChar	*llstr = NULL;
  if ((DK4_LL_NONE <= ll) && (DK4_LL_IGNORE >= ll)) {
    llstr = (app->msg_base)[(size_t)ll];
  }
  dk4app_log_two_strings_at_startup(app, title, llstr);
}



static
void
dk4app_log_startup_encoding(
  dk4_app_t	*app,
  const dkChar	*title,
  int		 enc,
  int		 isfileenc
)
{
  const dkChar	*encstr = NULL;
  if (0 != isfileenc) {
    switch (enc) {
      case DK4_FILE_ENCODING_ASCII : {
        encstr = dk4app_log_kwnl[5];
      } break;
      case DK4_FILE_ENCODING_ANSI : {
        encstr = dk4app_log_kwnl[6];
      } break;
      case DK4_FILE_ENCODING_UTF8 : {
        encstr = dk4app_log_kwnl[7];
      } break;
      case DK4_FILE_ENCODING_UTF16_LE : {
        encstr = dk4app_log_kwnl[9];
      } break;
      case DK4_FILE_ENCODING_UTF16_BE : {
        encstr = dk4app_log_kwnl[10];
      } break;
      case DK4_FILE_ENCODING_32_LE : {
        encstr = dk4app_log_kwnl[12];
      } break;
      case DK4_FILE_ENCODING_32_BE : {
        encstr = dk4app_log_kwnl[13];
      } break;
    }
  } else {
    switch (enc) {
      case DK4_ENCODING_ASCII : {
        encstr = dk4app_log_kwnl[5];
      } break;
      case DK4_ENCODING_ANSI : {
        encstr = dk4app_log_kwnl[6];
      } break;
      case DK4_ENCODING_UTF8 : {
        encstr = dk4app_log_kwnl[7];
      } break;
      case DK4_ENCODING_UTF16 : {
        encstr = dk4app_log_kwnl[8];
      } break;
      case DK4_ENCODING_32 : {
        encstr = dk4app_log_kwnl[11];
      } break;
    }
  }
  dk4app_log_two_strings_at_startup(app, title, encstr);
}



void
dk4app_log_startup_debug(dk4_app_t *app)
{
  dkChar		 fnb[DK4_MAX_PATH];
  dk4_er_t		 er;
  const dkChar		*msgtxt[3];
  const dkChar * const	*debmsg = NULL;
  size_t		 szdebmsg = 0;
  int			 res = 0;
  int			 pn = 0;
  $? "+ dk4app_log_startup_debug"
  if (NULL != app) {
    if (0 != dk4app_log_do(app, DK4_LL_DEBUG)) {
      /* Obtain localized texts */
      dk4app_log_load_base_texts(app);
      debmsg = dk4app_log_debug_texts(app, &szdebmsg);

      /*  0 Host name */
      dk4app_log_two_strings_at_startup(app, debmsg[0], app->host_name);

      /*  1 User name */
      dk4app_log_two_strings_at_startup(app, debmsg[1], app->user_name);

      /*  2 Home dir */
      dk4app_log_two_strings_at_startup(app, debmsg[2], app->user_home);

      /*  3 Language */
      dk4app_log_two_strings_at_startup(app, debmsg[3], app->language);

      /*  4 Region */
      dk4app_log_two_strings_at_startup(app, debmsg[4], app->region);

      /*  5 Encoding */
      dk4app_log_startup_encoding(app, debmsg[5], app->encoding, 0);

      /*  6 Encoding stdin */
      dk4app_log_startup_encoding(app, debmsg[6], app->enc_in_std, 1);

      /*  7 Encoding files */
      dk4app_log_startup_encoding(app, debmsg[7], app->enc_in_file, 1);

      /*  8 Program name */
      dk4app_log_two_strings_at_startup(app, debmsg[8], app->prog_name);

      /*  9 Program group */
      dk4app_log_two_strings_at_startup(app, debmsg[9], app->group_name);

      /* 10 etc */
      dk4app_log_two_strings_at_startup(app, debmsg[10], app->dir_etc);

      /* 11 bin */
      dk4app_log_two_strings_at_startup(app, debmsg[11], app->dir_bin);

      /* 12 share */
      dk4app_log_two_strings_at_startup(app, debmsg[12], app->dir_share);

      /* 13 lib */
      dk4app_log_two_strings_at_startup(app, debmsg[13], app->dir_lib);

      /* 14 var */
      dk4app_log_two_strings_at_startup(app, debmsg[14], app->dir_var);

      /* 15 tmp */
      dk4app_log_two_strings_at_startup(app, debmsg[15], app->dir_tmp);

      /* 17 Log file */
      dk4app_log_two_strings_at_startup(app, debmsg[17], app->log_file_name);

      /* 16 Logging enabled */
      dk4app_log_two_strings_at_startup(
	app, debmsg[16], dk4app_log_kwnl[(0 != app->log_enabled) ? 4 : 3]
      );

      /* 18 Log level stderr */
      dk4app_log_startup_log_level(app, debmsg[18], app->ll_stderr);

      /* 19 Log level file */
      dk4app_log_startup_log_level(app, debmsg[19], app->ll_file);

      /* 20 Log level keep */
      dk4app_log_startup_log_level(app, debmsg[20], app->ll_file_keep);

      /* Preferences files */
      dk4app_log_1(app, debmsg, szdebmsg, DK4_LL_DEBUG, 28);
      for (pn = 0; (pn <= DK4_FS_CONF_MAX); pn++) {
#if DK4_HAVE_COMPATDKTOOLS3
	dk4error_init(&er);
	res = dk4fs_config_construct_compat_one(
	  fnb, DK4_SIZEOF(fnb,dkChar), dk4app_log_kwnl[14],
	  app->dir_share, app->dir_etc, app->user_home,
	  app->prog_name, app->group_name, pn, 1, &er
	);
	if (0 != res) {
	  res = dk4fs_attempt_file_name(fnb, DK4_SIZEOF(fnb,dkChar), 1, NULL);
	  if (0 != res) {
	    msgtxt[0] = debmsg[30];
	    msgtxt[1] = fnb;
	    dk4app_log_msg(app, DK4_LL_DEBUG, msgtxt, 2);
	  } else {
	    msgtxt[0] = debmsg[31];
	    msgtxt[1] = fnb;
	    dk4app_log_msg(app, DK4_LL_DEBUG, msgtxt, 2);
	  }
	}
#endif
	dk4error_init(&er);
	res = dk4fs_config_construct_compat_one(
	  fnb, DK4_SIZEOF(fnb,dkChar), dk4app_log_kwnl[15],
	  app->dir_share, app->dir_etc, app->user_home,
	  app->prog_name, app->group_name, pn, 0, &er
	);
	if (0 != res) {
	  res = dk4fs_attempt_file_name(fnb, DK4_SIZEOF(fnb,dkChar), 1, NULL);
	  if (0 != res) {
	    msgtxt[0] = debmsg[30];
	    msgtxt[1] = fnb;
	    dk4app_log_msg(app, DK4_LL_DEBUG, msgtxt, 2);
	  } else {
	    msgtxt[0] = debmsg[31];
	    msgtxt[1] = fnb;
	    dk4app_log_msg(app, DK4_LL_DEBUG, msgtxt, 2);
	  }
	}
      }
#if VERSION_BEFORE_2017_03_13
      dk4app_log_1(app, debmsg, szdebmsg, DK4_LL_DEBUG, 29);
#endif
    }
  }
  $? "- dk4app_log_startup_debug"
}