/src/FreeRDP/winpr/libwinpr/utils/wlog/Layout.c

Source (jump to first uncovered line)
/**
 * WinPR: Windows Portable Runtime
 * WinPR Logger
 *
 * Copyright 2013 Marc-Andre Moreau <marcandre.moreau@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <winpr/config.h>

#include <stdio.h>
#include <string.h>
#include <stdarg.h>

#include <winpr/crt.h>
#include <winpr/assert.h>
#include <winpr/print.h>
#include <winpr/sysinfo.h>
#include <winpr/environment.h>

#include "wlog.h"

#include "Layout.h"

#if defined __linux__ && !defined ANDROID
#include <unistd.h>
#include <sys/syscall.h>
#endif

#ifndef MIN
#define MIN(x, y) (((x) < (y)) ? (x) : (y))
#endif

struct format_option_recurse;

struct format_tid_arg
{
  char tid[32];
};

struct format_option
{
  const char* fmt;
  size_t fmtlen;
  const char* replace;
  size_t replacelen;
  const char* (*fkt)(void*);
  void* arg;
  const char* (*ext)(const struct format_option* opt, const char* str, size_t* preplacelen,
                     size_t* pskiplen);
  struct format_option_recurse* recurse;
};

struct format_option_recurse
{
  struct format_option* options;
  size_t nroptions;
  wLog* log;
  wLogLayout* layout;
  wLogMessage* message;
  char buffer[WLOG_MAX_PREFIX_SIZE];
};

/**
 * Log Layout
 */
WINPR_ATTR_FORMAT_ARG(3, 0)
static void WLog_PrintMessagePrefixVA(WINPR_ATTR_UNUSED wLog* log, wLogMessage* message,
                                      WINPR_FORMAT_ARG const char* format, va_list args)
{
  WINPR_ASSERT(message);
  (void)vsnprintf(message->PrefixString, WLOG_MAX_PREFIX_SIZE - 1, format, args);
}

WINPR_ATTR_FORMAT_ARG(3, 4)
static void WLog_PrintMessagePrefix(wLog* log, wLogMessage* message,
                                    WINPR_FORMAT_ARG const char* format, ...)
{
  va_list args;
  va_start(args, format);
  WLog_PrintMessagePrefixVA(log, message, format, args);
  va_end(args);
}

static const char* get_tid(void* arg)
{
  struct format_tid_arg* targ = arg;
  WINPR_ASSERT(targ);

  size_t tid = 0;
#if defined __linux__ && !defined ANDROID
  /* On Linux we prefer to see the LWP id */
  tid = (size_t)syscall(SYS_gettid);
#else
  tid = (size_t)GetCurrentThreadId();
#endif
  (void)_snprintf(targ->tid, sizeof(targ->tid), "%08" PRIxz, tid);
  return targ->tid;
}

static BOOL log_invalid_fmt(const char* what)
{
  (void)fprintf(stderr, "Invalid format string '%s'\n", what);
  return FALSE;
}

static BOOL check_and_log_format_size(char* format, size_t size, size_t index, size_t add)
{
  /* format string must be '\0' terminated, so abort at size - 1 */
  if (index + add + 1 >= size)
  {
    (void)fprintf(stderr,
                  "Format string too long ['%s', max %" PRIuz ", used %" PRIuz
                  ", adding %" PRIuz "]\n",
                  format, size, index, add);
    return FALSE;
  }
  return TRUE;
}

static int opt_compare_fn(const void* a, const void* b)
{
  const char* what = a;
  const struct format_option* opt = b;
  if (!opt)
    return -1;
  return strncmp(what, opt->fmt, opt->fmtlen);
}

static BOOL replace_format_string(const char* FormatString, struct format_option_recurse* recurse,
                                  char* format, size_t formatlen);

static const char* skip_if_null(const struct format_option* opt, const char* fmt,
                                size_t* preplacelen, size_t* pskiplen)
{
  WINPR_ASSERT(opt);
  WINPR_ASSERT(fmt);
  WINPR_ASSERT(preplacelen);
  WINPR_ASSERT(pskiplen);

  *preplacelen = 0;
  *pskiplen = 0;

  const char* str = &fmt[opt->fmtlen]; /* Skip first %{ from string */
  const char* end = strstr(str, opt->replace);
  if (!end)
    return NULL;
  *pskiplen = WINPR_ASSERTING_INT_CAST(size_t, end - fmt) + opt->replacelen;

  if (!opt->arg)
    return NULL;

  const size_t replacelen = WINPR_ASSERTING_INT_CAST(size_t, end - str);

  char buffer[WLOG_MAX_PREFIX_SIZE] = { 0 };
  memcpy(buffer, str, MIN(replacelen, ARRAYSIZE(buffer) - 1));

  if (!replace_format_string(buffer, opt->recurse, opt->recurse->buffer,
                             ARRAYSIZE(opt->recurse->buffer)))
    return NULL;

  *preplacelen = strnlen(opt->recurse->buffer, ARRAYSIZE(opt->recurse->buffer));
  return opt->recurse->buffer;
}

static BOOL replace_format_string(const char* FormatString, struct format_option_recurse* recurse,
                                  char* format, size_t formatlen)
{
  WINPR_ASSERT(FormatString);
  WINPR_ASSERT(recurse);

  size_t index = 0;

  while (*FormatString)
  {
    const struct format_option* opt =
        bsearch(FormatString, recurse->options, recurse->nroptions,
                sizeof(struct format_option), opt_compare_fn);
    if (opt)
    {
      size_t replacelen = opt->replacelen;
      size_t fmtlen = opt->fmtlen;
      const char* replace = opt->replace;
      const void* arg = opt->arg;

      if (opt->ext)
        replace = opt->ext(opt, FormatString, &replacelen, &fmtlen);
      if (opt->fkt)
        arg = opt->fkt(opt->arg);

      if (replace && (replacelen > 0))
      {
        WINPR_PRAGMA_DIAG_PUSH
        WINPR_PRAGMA_DIAG_IGNORED_FORMAT_NONLITERAL
        const int rc = _snprintf(&format[index], formatlen - index, replace, arg);
        WINPR_PRAGMA_DIAG_POP
        if (rc < 0)
          return FALSE;
        if (!check_and_log_format_size(format, formatlen, index,
                                       WINPR_ASSERTING_INT_CAST(size_t, rc)))
          return FALSE;
        index += WINPR_ASSERTING_INT_CAST(size_t, rc);
      }
      FormatString += fmtlen;
    }
    else
    {
      /* Unknown format string */
      if (*FormatString == '%')
        return log_invalid_fmt(FormatString);

      if (!check_and_log_format_size(format, formatlen, index, 1))
        return FALSE;
      format[index++] = *FormatString++;
    }
  }

  if (!check_and_log_format_size(format, formatlen, index, 0))
    return FALSE;
  return TRUE;
}

BOOL WLog_Layout_GetMessagePrefix(wLog* log, wLogLayout* layout, wLogMessage* message)
{
  char format[WLOG_MAX_PREFIX_SIZE] = { 0 };

  WINPR_ASSERT(layout);
  WINPR_ASSERT(message);

  struct format_tid_arg targ = { 0 };

  SYSTEMTIME localTime = { 0 };
  GetLocalTime(&localTime);

  struct format_option_recurse recurse = {
    .options = NULL, .nroptions = 0, .log = log, .layout = layout, .message = message
  };

#define ENTRY(x) x, sizeof(x) - 1
  struct format_option options[] = {
    { ENTRY("%ctx"), ENTRY("%s"), log->custom, log->context, NULL, &recurse }, /* log context */
    { ENTRY("%dw"), ENTRY("%u"), NULL, (void*)(size_t)localTime.wDayOfWeek, NULL,
      &recurse }, /* day of week */
    { ENTRY("%dy"), ENTRY("%u"), NULL, (void*)(size_t)localTime.wDay, NULL,
      &recurse }, /* day of year */
    { ENTRY("%fl"), ENTRY("%s"), NULL, WINPR_CAST_CONST_PTR_AWAY(message->FileName, void*),
      NULL, &recurse }, /* file */
    { ENTRY("%fn"), ENTRY("%s"), NULL, WINPR_CAST_CONST_PTR_AWAY(message->FunctionName, void*),
      NULL, &recurse }, /* function */
    { ENTRY("%hr"), ENTRY("%02u"), NULL, (void*)(size_t)localTime.wHour, NULL,
      &recurse }, /* hours */
    { ENTRY("%ln"), ENTRY("%" PRIuz), NULL, (void*)message->LineNumber, NULL,
      &recurse }, /* line number */
    { ENTRY("%lv"), ENTRY("%s"), NULL,
      WINPR_CAST_CONST_PTR_AWAY(WLOG_LEVELS[message->Level], void*), NULL,
      &recurse }, /* log level */
    { ENTRY("%mi"), ENTRY("%02u"), NULL, (void*)(size_t)localTime.wMinute, NULL,
      &recurse }, /* minutes */
    { ENTRY("%ml"), ENTRY("%03u"), NULL, (void*)(size_t)localTime.wMilliseconds, NULL,
      &recurse },                                                   /* milliseconds */
    { ENTRY("%mn"), ENTRY("%s"), NULL, log->Name, NULL, &recurse }, /* module name */
    { ENTRY("%mo"), ENTRY("%u"), NULL, (void*)(size_t)localTime.wMonth, NULL,
      &recurse }, /* month */
    { ENTRY("%pid"), ENTRY("%u"), NULL, (void*)(size_t)GetCurrentProcessId(), NULL,
      &recurse }, /* process id */
    { ENTRY("%se"), ENTRY("%02u"), NULL, (void*)(size_t)localTime.wSecond, NULL,
      &recurse },                                                   /* seconds */
    { ENTRY("%tid"), ENTRY("%s"), get_tid, &targ, NULL, &recurse }, /* thread id */
    { ENTRY("%yr"), ENTRY("%u"), NULL, (void*)(size_t)localTime.wYear, NULL,
      &recurse }, /* year */
    { ENTRY("%{"), ENTRY("%}"), NULL, log->context, skip_if_null,
      &recurse }, /* skip if no context */
  };

  recurse.options = options;
  recurse.nroptions = ARRAYSIZE(options);

  if (!replace_format_string(layout->FormatString, &recurse, format, ARRAYSIZE(format)))
    return FALSE;

  WINPR_PRAGMA_DIAG_PUSH
  WINPR_PRAGMA_DIAG_IGNORED_FORMAT_SECURITY

  WLog_PrintMessagePrefix(log, message, format);

  WINPR_PRAGMA_DIAG_POP

  return TRUE;
}

wLogLayout* WLog_GetLogLayout(wLog* log)
{
  wLogAppender* appender = NULL;
  appender = WLog_GetLogAppender(log);
  return appender->Layout;
}

BOOL WLog_Layout_SetPrefixFormat(WINPR_ATTR_UNUSED wLog* log, wLogLayout* layout,
                                 const char* format)
{
  free(layout->FormatString);
  layout->FormatString = NULL;

  if (format)
  {
    layout->FormatString = _strdup(format);

    if (!layout->FormatString)
      return FALSE;
  }

  return TRUE;
}

wLogLayout* WLog_Layout_New(WINPR_ATTR_UNUSED wLog* log)
{
  LPCSTR prefix = "WLOG_PREFIX";
  DWORD nSize = 0;
  char* env = NULL;
  wLogLayout* layout = NULL;
  layout = (wLogLayout*)calloc(1, sizeof(wLogLayout));

  if (!layout)
    return NULL;

  nSize = GetEnvironmentVariableA(prefix, NULL, 0);

  if (nSize)
  {
    env = (LPSTR)malloc(nSize);

    if (!env)
    {
      free(layout);
      return NULL;
    }

    if (GetEnvironmentVariableA(prefix, env, nSize) != nSize - 1)
    {
      free(env);
      free(layout);
      return NULL;
    }
  }

  if (env)
    layout->FormatString = env;
  else
  {
#ifdef ANDROID
    layout->FormatString = _strdup("[pid=%pid:tid=%tid] - [%fn]%{[%ctx]%}: ");
#else
    layout->FormatString =
        _strdup("[%hr:%mi:%se:%ml] [%pid:%tid] [%lv][%mn] - [%fn]%{[%ctx]%}: ");
#endif

    if (!layout->FormatString)
    {
      free(layout);
      return NULL;
    }
  }

  return layout;
}

void WLog_Layout_Free(WINPR_ATTR_UNUSED wLog* log, wLogLayout* layout)
{
  if (layout)
  {
    if (layout->FormatString)
    {
      free(layout->FormatString);
      layout->FormatString = NULL;
    }

    free(layout);
  }
}

Coverage Report

Created: 2025-07-01 06:46

Line	Count	Source (jump to first uncovered line)
1		/**
2		* WinPR: Windows Portable Runtime
3		* WinPR Logger
4		*
5		* Copyright 2013 Marc-Andre Moreau <marcandre.moreau@gmail.com>
6		*
7		* Licensed under the Apache License, Version 2.0 (the "License");
8		* you may not use this file except in compliance with the License.
9		* You may obtain a copy of the License at
10		*
11		* http://www.apache.org/licenses/LICENSE-2.0
12		*
13		* Unless required by applicable law or agreed to in writing, software
14		* distributed under the License is distributed on an "AS IS" BASIS,
15		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16		* See the License for the specific language governing permissions and
17		* limitations under the License.
18		*/
19
20		#include <winpr/config.h>
21
22		#include <stdio.h>
23		#include <string.h>
24		#include <stdarg.h>
25
26		#include <winpr/crt.h>
27		#include <winpr/assert.h>
28		#include <winpr/print.h>
29		#include <winpr/sysinfo.h>
30		#include <winpr/environment.h>
31
32		#include "wlog.h"
33
34		#include "Layout.h"
35
36		#if defined __linux__ && !defined ANDROID
37		#include <unistd.h>
38		#include <sys/syscall.h>
39		#endif
40
41		#ifndef MIN
42	0	#define MIN(x, y) (((x) < (y)) ? (x) : (y))
43		#endif
44
45		struct format_option_recurse;
46
47		struct format_tid_arg
48		{
49		char tid[32];
50		};
51
52		struct format_option
53		{
54		const char* fmt;
55		size_t fmtlen;
56		const char* replace;
57		size_t replacelen;
58		const char* (fkt)(void);
59		void* arg;
60		const char* (ext)(const struct format_option opt, const char* str, size_t* preplacelen,
61		size_t* pskiplen);
62		struct format_option_recurse* recurse;
63		};
64
65		struct format_option_recurse
66		{
67		struct format_option* options;
68		size_t nroptions;
69		wLog* log;
70		wLogLayout* layout;
71		wLogMessage* message;
72		char buffer[WLOG_MAX_PREFIX_SIZE];
73		};
74
75		/**
76		* Log Layout
77		*/
78		WINPR_ATTR_FORMAT_ARG(3, 0)
79		static void WLog_PrintMessagePrefixVA(WINPR_ATTR_UNUSED wLog* log, wLogMessage* message,
80		WINPR_FORMAT_ARG const char* format, va_list args)
81	0	{
82	0	WINPR_ASSERT(message);
83	0	(void)vsnprintf(message->PrefixString, WLOG_MAX_PREFIX_SIZE - 1, format, args);
84	0	}
85
86		WINPR_ATTR_FORMAT_ARG(3, 4)
87		static void WLog_PrintMessagePrefix(wLog* log, wLogMessage* message,
88		WINPR_FORMAT_ARG const char* format, ...)
89	0	{
90	0	va_list args;
91	0	va_start(args, format);
92	0	WLog_PrintMessagePrefixVA(log, message, format, args);
93	0	va_end(args);
94	0	}
95
96		static const char* get_tid(void* arg)
97	0	{
98	0	struct format_tid_arg* targ = arg;
99	0	WINPR_ASSERT(targ);
100
101	0	size_t tid = 0;
102	0	#if defined __linux__ && !defined ANDROID
103		/* On Linux we prefer to see the LWP id */
104	0	tid = (size_t)syscall(SYS_gettid);
105		#else
106		tid = (size_t)GetCurrentThreadId();
107		#endif
108	0	(void)_snprintf(targ->tid, sizeof(targ->tid), "%08" PRIxz, tid);
109	0	return targ->tid;
110	0	}
111
112		static BOOL log_invalid_fmt(const char* what)
113	0	{
114	0	(void)fprintf(stderr, "Invalid format string '%s'\n", what);
115	0	return FALSE;
116	0	}
117
118		static BOOL check_and_log_format_size(char* format, size_t size, size_t index, size_t add)
119	0	{
120		/* format string must be '\0' terminated, so abort at size - 1 */
121	0	if (index + add + 1 >= size)
122	0	{
123	0	(void)fprintf(stderr,
124	0	"Format string too long ['%s', max %" PRIuz ", used %" PRIuz
125	0	", adding %" PRIuz "]\n",
126	0	format, size, index, add);
127	0	return FALSE;
128	0	}
129	0	return TRUE;
130	0	}
131
132		static int opt_compare_fn(const void* a, const void* b)
133	0	{
134	0	const char* what = a;
135	0	const struct format_option* opt = b;
136	0	if (!opt)
137	0	return -1;
138	0	return strncmp(what, opt->fmt, opt->fmtlen);
139	0	}
140
141		static BOOL replace_format_string(const char* FormatString, struct format_option_recurse* recurse,
142		char* format, size_t formatlen);
143
144		static const char* skip_if_null(const struct format_option* opt, const char* fmt,
145		size_t* preplacelen, size_t* pskiplen)
146	0	{
147	0	WINPR_ASSERT(opt);
148	0	WINPR_ASSERT(fmt);
149	0	WINPR_ASSERT(preplacelen);
150	0	WINPR_ASSERT(pskiplen);
151
152	0	*preplacelen = 0;
153	0	*pskiplen = 0;
154
155	0	const char* str = &fmt[opt->fmtlen]; /* Skip first %{ from string */
156	0	const char* end = strstr(str, opt->replace);
157	0	if (!end)
158	0	return NULL;
159	0	*pskiplen = WINPR_ASSERTING_INT_CAST(size_t, end - fmt) + opt->replacelen;
160
161	0	if (!opt->arg)
162	0	return NULL;
163
164	0	const size_t replacelen = WINPR_ASSERTING_INT_CAST(size_t, end - str);
165
166	0	char buffer[WLOG_MAX_PREFIX_SIZE] = { 0 };
167	0	memcpy(buffer, str, MIN(replacelen, ARRAYSIZE(buffer) - 1));
168
169	0	if (!replace_format_string(buffer, opt->recurse, opt->recurse->buffer,
170	0	ARRAYSIZE(opt->recurse->buffer)))
171	0	return NULL;
172
173	0	*preplacelen = strnlen(opt->recurse->buffer, ARRAYSIZE(opt->recurse->buffer));
174	0	return opt->recurse->buffer;
175	0	}
176
177		static BOOL replace_format_string(const char* FormatString, struct format_option_recurse* recurse,
178		char* format, size_t formatlen)
179	0	{
180	0	WINPR_ASSERT(FormatString);
181	0	WINPR_ASSERT(recurse);
182
183	0	size_t index = 0;
184
185	0	while (*FormatString)
186	0	{
187	0	const struct format_option* opt =
188	0	bsearch(FormatString, recurse->options, recurse->nroptions,
189	0	sizeof(struct format_option), opt_compare_fn);
190	0	if (opt)
191	0	{
192	0	size_t replacelen = opt->replacelen;
193	0	size_t fmtlen = opt->fmtlen;
194	0	const char* replace = opt->replace;
195	0	const void* arg = opt->arg;
196
197	0	if (opt->ext)
198	0	replace = opt->ext(opt, FormatString, &replacelen, &fmtlen);
199	0	if (opt->fkt)
200	0	arg = opt->fkt(opt->arg);
201
202	0	if (replace && (replacelen > 0))
203	0	{
204	0	WINPR_PRAGMA_DIAG_PUSH
205	0	WINPR_PRAGMA_DIAG_IGNORED_FORMAT_NONLITERAL
206	0	const int rc = _snprintf(&format[index], formatlen - index, replace, arg);
207	0	WINPR_PRAGMA_DIAG_POP
208	0	if (rc < 0)
209	0	return FALSE;
210	0	if (!check_and_log_format_size(format, formatlen, index,
211	0	WINPR_ASSERTING_INT_CAST(size_t, rc)))
212	0	return FALSE;
213	0	index += WINPR_ASSERTING_INT_CAST(size_t, rc);
214	0	}
215	0	FormatString += fmtlen;
216	0	}
217	0	else
218	0	{
219		/* Unknown format string */
220	0	if (*FormatString == '%')
221	0	return log_invalid_fmt(FormatString);
222
223	0	if (!check_and_log_format_size(format, formatlen, index, 1))
224	0	return FALSE;
225	0	format[index++] = *FormatString++;
226	0	}
227	0	}
228
229	0	if (!check_and_log_format_size(format, formatlen, index, 0))
230	0	return FALSE;
231	0	return TRUE;
232	0	}
233
234		BOOL WLog_Layout_GetMessagePrefix(wLog* log, wLogLayout* layout, wLogMessage* message)
235	0	{
236	0	char format[WLOG_MAX_PREFIX_SIZE] = { 0 };
237
238	0	WINPR_ASSERT(layout);
239	0	WINPR_ASSERT(message);
240
241	0	struct format_tid_arg targ = { 0 };
242
243	0	SYSTEMTIME localTime = { 0 };
244	0	GetLocalTime(&localTime);
245
246	0	struct format_option_recurse recurse = {
247	0	.options = NULL, .nroptions = 0, .log = log, .layout = layout, .message = message
248	0	};
249
250	0	#define ENTRY(x) x, sizeof(x) - 1
251	0	struct format_option options[] = {
252	0	{ ENTRY("%ctx"), ENTRY("%s"), log->custom, log->context, NULL, &recurse }, /* log context */
253	0	{ ENTRY("%dw"), ENTRY("%u"), NULL, (void*)(size_t)localTime.wDayOfWeek, NULL,
254	0	&recurse }, /* day of week */
255	0	{ ENTRY("%dy"), ENTRY("%u"), NULL, (void*)(size_t)localTime.wDay, NULL,
256	0	&recurse }, /* day of year */
257	0	{ ENTRY("%fl"), ENTRY("%s"), NULL, WINPR_CAST_CONST_PTR_AWAY(message->FileName, void*),
258	0	NULL, &recurse }, /* file */
259	0	{ ENTRY("%fn"), ENTRY("%s"), NULL, WINPR_CAST_CONST_PTR_AWAY(message->FunctionName, void*),
260	0	NULL, &recurse }, /* function */
261	0	{ ENTRY("%hr"), ENTRY("%02u"), NULL, (void*)(size_t)localTime.wHour, NULL,
262	0	&recurse }, /* hours */
263	0	{ ENTRY("%ln"), ENTRY("%" PRIuz), NULL, (void*)message->LineNumber, NULL,
264	0	&recurse }, /* line number */
265	0	{ ENTRY("%lv"), ENTRY("%s"), NULL,
266	0	WINPR_CAST_CONST_PTR_AWAY(WLOG_LEVELS[message->Level], void*), NULL,
267	0	&recurse }, /* log level */
268	0	{ ENTRY("%mi"), ENTRY("%02u"), NULL, (void*)(size_t)localTime.wMinute, NULL,
269	0	&recurse }, /* minutes */
270	0	{ ENTRY("%ml"), ENTRY("%03u"), NULL, (void*)(size_t)localTime.wMilliseconds, NULL,
271	0	&recurse }, /* milliseconds */
272	0	{ ENTRY("%mn"), ENTRY("%s"), NULL, log->Name, NULL, &recurse }, /* module name */
273	0	{ ENTRY("%mo"), ENTRY("%u"), NULL, (void*)(size_t)localTime.wMonth, NULL,
274	0	&recurse }, /* month */
275	0	{ ENTRY("%pid"), ENTRY("%u"), NULL, (void*)(size_t)GetCurrentProcessId(), NULL,
276	0	&recurse }, /* process id */
277	0	{ ENTRY("%se"), ENTRY("%02u"), NULL, (void*)(size_t)localTime.wSecond, NULL,
278	0	&recurse }, /* seconds */
279	0	{ ENTRY("%tid"), ENTRY("%s"), get_tid, &targ, NULL, &recurse }, /* thread id */
280	0	{ ENTRY("%yr"), ENTRY("%u"), NULL, (void*)(size_t)localTime.wYear, NULL,
281	0	&recurse }, /* year */
282	0	{ ENTRY("%{"), ENTRY("%}"), NULL, log->context, skip_if_null,
283	0	&recurse }, /* skip if no context */
284	0	};
285
286	0	recurse.options = options;
287	0	recurse.nroptions = ARRAYSIZE(options);
288
289	0	if (!replace_format_string(layout->FormatString, &recurse, format, ARRAYSIZE(format)))
290	0	return FALSE;
291
292	0	WINPR_PRAGMA_DIAG_PUSH
293	0	WINPR_PRAGMA_DIAG_IGNORED_FORMAT_SECURITY
294
295	0	WLog_PrintMessagePrefix(log, message, format);
296
297	0	WINPR_PRAGMA_DIAG_POP
298
299	0	return TRUE;
300	0	}
301
302		wLogLayout* WLog_GetLogLayout(wLog* log)
303	0	{
304	0	wLogAppender* appender = NULL;
305	0	appender = WLog_GetLogAppender(log);
306	0	return appender->Layout;
307	0	}
308
309		BOOL WLog_Layout_SetPrefixFormat(WINPR_ATTR_UNUSED wLog* log, wLogLayout* layout,
310		const char* format)
311	0	{
312	0	free(layout->FormatString);
313	0	layout->FormatString = NULL;
314
315	0	if (format)
316	0	{
317	0	layout->FormatString = _strdup(format);
318
319	0	if (!layout->FormatString)
320	0	return FALSE;
321	0	}
322
323	0	return TRUE;
324	0	}
325
326		wLogLayout* WLog_Layout_New(WINPR_ATTR_UNUSED wLog* log)
327	0	{
328	0	LPCSTR prefix = "WLOG_PREFIX";
329	0	DWORD nSize = 0;
330	0	char* env = NULL;
331	0	wLogLayout* layout = NULL;
332	0	layout = (wLogLayout*)calloc(1, sizeof(wLogLayout));
333
334	0	if (!layout)
335	0	return NULL;
336
337	0	nSize = GetEnvironmentVariableA(prefix, NULL, 0);
338
339	0	if (nSize)
340	0	{
341	0	env = (LPSTR)malloc(nSize);
342
343	0	if (!env)
344	0	{
345	0	free(layout);
346	0	return NULL;
347	0	}
348
349	0	if (GetEnvironmentVariableA(prefix, env, nSize) != nSize - 1)
350	0	{
351	0	free(env);
352	0	free(layout);
353	0	return NULL;
354	0	}
355	0	}
356
357	0	if (env)
358	0	layout->FormatString = env;
359	0	else
360	0	{
361		#ifdef ANDROID
362		layout->FormatString = _strdup("[pid=%pid:tid=%tid] - [%fn]%{[%ctx]%}: ");
363		#else
364	0	layout->FormatString =
365	0	_strdup("[%hr:%mi:%se:%ml] [%pid:%tid] [%lv][%mn] - [%fn]%{[%ctx]%}: ");
366	0	#endif
367
368	0	if (!layout->FormatString)
369	0	{
370	0	free(layout);
371	0	return NULL;
372	0	}
373	0	}
374
375	0	return layout;
376	0	}
377
378		void WLog_Layout_Free(WINPR_ATTR_UNUSED wLog* log, wLogLayout* layout)
379	0	{
380	0	if (layout)
381	0	{
382	0	if (layout->FormatString)
383	0	{
384	0	free(layout->FormatString);
385	0	layout->FormatString = NULL;
386	0	}
387
388	0	free(layout);
389	0	}
390	0	}