[thirdparty/cups.git] / scheduler / log.c

/*
 * "$Id: log.c 4860 2005-12-01 22:07:26Z mike $"
 *
 *   Log file routines for the Common UNIX Printing System (CUPS).
 *
 *   Copyright 1997-2005 by Easy Software Products, all rights reserved.
 *
 *   These coded instructions, statements, and computer programs are the
 *   property of Easy Software Products and are protected by Federal
 *   copyright law.  Distribution and use rights are outlined in the file
 *   "LICENSE.txt" which should have been included with this file.  If this
 *   file is missing or damaged please contact Easy Software Products
 *   at:
 *
 *       Attn: CUPS Licensing Information
 *       Easy Software Products
 *       44141 Airport View Drive, Suite 204
 *       Hollywood, Maryland 20636 USA
 *
 *       Voice: (301) 373-9600
 *       EMail: cups-info@cups.org
 *         WWW: http://www.cups.org
 *
 * Contents:
 *
 *   cupsdGetDateTime()    - Returns a pointer to a date/time string.
 *   cupsdLogMessage()     - Log a message to the error log file.
 *   cupsdLogPage()        - Log a page to the page log file.
 *   cupsdLogRequest()     - Log an HTTP request in Common Log Format.
 *   check_log_file() - Open/rotate a log file if it needs it.
 */

/*
 * Include necessary headers...
 */

#include "cupsd.h"
#include <stdarg.h>

#ifdef HAVE_VSYSLOG
#  include <syslog.h>
#endif /* HAVE_VSYSLOG */


/*
 * Local functions...
 */

static int	check_log_file(cups_file_t **, const char *);


/*
 * 'cupsdGetDateTime()' - Returns a pointer to a date/time string.
 */

char *					/* O - Date/time string */
cupsdGetDateTime(time_t t)		/* I - Time value */
{
  struct tm	*date;			/* Date/time value */
  static time_t	last_time = -1;		/* Last time value */
  static char	s[1024];		/* Date/time string */
  static const char * const months[12] =/* Months */
		{
		  "Jan",
		  "Feb",
		  "Mar",
		  "Apr",
		  "May",
		  "Jun",
		  "Jul",
		  "Aug",
		  "Sep",
		  "Oct",
		  "Nov",
		  "Dec"
		};


  if (t != last_time)
  {
    last_time = t;

   /*
    * Get the date and time from the UNIX time value, and then format it
    * into a string.  Note that we *can't* use the strftime() function since
    * it is localized and will seriously confuse automatic programs if the
    * month names are in the wrong language!
    *
    * Also, we use the "timezone" variable that contains the current timezone
    * offset from GMT in seconds so that we are reporting local time in the
    * log files.  If you want GMT, set the TZ environment variable accordingly
    * before starting the scheduler.
    *
    * (*BSD and Darwin store the timezone offset in the tm structure)
    */

    date = localtime(&t);

    snprintf(s, sizeof(s), "[%02d/%s/%04d:%02d:%02d:%02d %+03ld%02ld]",
	     date->tm_mday, months[date->tm_mon], 1900 + date->tm_year,
	     date->tm_hour, date->tm_min, date->tm_sec,
#ifdef HAVE_TM_GMTOFF
             date->tm_gmtoff / 3600, (date->tm_gmtoff / 60) % 60);
#else
             timezone / 3600, (timezone / 60) % 60);
#endif /* HAVE_TM_GMTOFF */
  }

  return (s);
}


/*
 * 'cupsdLogMessage()' - Log a message to the error log file.
 */

int					/* O - 1 on success, 0 on error */
cupsdLogMessage(int        level,	/* I - Log level */
                const char *message,	/* I - printf-style message string */
	        ...)			/* I - Additional args as needed */
{
  int			len;		/* Length of message */
  va_list		ap;		/* Argument pointer */
  static const char	levels[] =	/* Log levels... */
		{
		  ' ',
		  'X',
		  'A',
		  'C',
		  'E',
		  'W',
		  'N',
		  'I',
		  'D',
		  'd'
		};
#ifdef HAVE_VSYSLOG
  static const int syslevels[] =	/* SYSLOG levels... */
		{
		  0,
		  LOG_EMERG,
		  LOG_ALERT,
		  LOG_CRIT,
		  LOG_ERR,
		  LOG_WARNING,
		  LOG_NOTICE,
		  LOG_INFO,
		  LOG_DEBUG,
		  LOG_DEBUG
		};
#endif /* HAVE_VSYSLOG */
  static int	linesize = 0;		/* Size of line for output file */
  static char	*line = NULL;		/* Line for output file */


 /*
  * See if we want to log this message...
  */

  if (level > LogLevel || !ErrorLog)
    return (1);

#ifdef HAVE_VSYSLOG
 /*
  * See if we are logging errors via syslog...
  */

  if (!strcmp(ErrorLog, "syslog"))
  {
    va_start(ap, message);
    vsyslog(syslevels[level], message, ap);
    va_end(ap);

    return (1);
  }
#endif /* HAVE_VSYSLOG */

 /*
  * Not using syslog; check the log file...
  */

  if (!check_log_file(&ErrorFile, ErrorLog))
    return (0);

 /*
  * Print the log level and date/time...
  */

  cupsFilePrintf(ErrorFile, "%c %s ", levels[level], cupsdGetDateTime(time(NULL)));

 /*
  * Allocate the line buffer as needed...
  */

  if (!linesize)
  {
    linesize = 8192;
    line     = malloc(linesize);

    if (!line)
    {
      cupsFilePrintf(ErrorFile,
                     "ERROR: Unable to allocate memory for line - %s\n",
                     strerror(errno));
      cupsFileFlush(ErrorFile);

      return (0);
    }
  }

 /*
  * Format the log message...
  */

  va_start(ap, message);
  len = vsnprintf(line, linesize, message, ap);
  va_end(ap);

 /*
  * Resize the buffer as needed...
  */

  if (len >= linesize)
  {
    len ++;

    if (len < 8192)
      len = 8192;
    else if (len > 65536)
      len = 65536;

    line = realloc(line, len);

    if (line)
      linesize = len;
    else
    {
      cupsFilePrintf(ErrorFile,
                     "ERROR: Unable to allocate memory for line - %s\n",
                     strerror(errno));
      cupsFileFlush(ErrorFile);

      return (0);
    }

    va_start(ap, message);
    len = vsnprintf(line, linesize, message, ap);
    va_end(ap);
  }

  if (len >= linesize)
    len = linesize - 1;

 /*
  * Then the log message...
  */

  cupsFilePuts(ErrorFile, line);

 /*
  * Then a newline...
  */

  if (len > 0 && line[len - 1] != '\n')
    cupsFilePutChar(ErrorFile, '\n');

 /*
  * Flush the line to the file and return...
  */

  cupsFileFlush(ErrorFile);

  return (1);
}


/*
 * 'cupsdLogPage()' - Log a page to the page log file.
 */

int					/* O - 1 on success, 0 on error */
cupsdLogPage(cupsd_job_t *job,		/* I - Job being printed */
             const char  *page)		/* I - Page being printed */
{
  ipp_attribute_t *billing,		/* job-billing attribute */
                  *hostname;		/* job-originating-host-name attribute */


  billing  = ippFindAttribute(job->attrs, "job-billing", IPP_TAG_ZERO);
  hostname = ippFindAttribute(job->attrs, "job-originating-host-name",
                              IPP_TAG_ZERO);

#ifdef HAVE_VSYSLOG
 /*
  * See if we are logging pages via syslog...
  */

  if (!strcmp(PageLog, "syslog"))
  {
    syslog(LOG_INFO, "PAGE %s %s %d %s %s %s", job->printer->name,
           job->username ? job->username : "-",
           job->id, page, billing ? billing->values[0].string.text : "-",
           hostname->values[0].string.text);

    return (1);
  }
#endif /* HAVE_VSYSLOG */

 /*
  * Not using syslog; check the log file...
  */

  if (!check_log_file(&PageFile, PageLog))
    return (0);

 /*
  * Print a page log entry of the form:
  *
  *    printer job-id user [DD/MON/YYYY:HH:MM:SS +TTTT] page num-copies \
  *        billing hostname
  */

  cupsFilePrintf(PageFile, "%s %s %d %s %s %s %s\n", job->printer->name,
        	 job->username ? job->username : "-",
        	 job->id, cupsdGetDateTime(time(NULL)), page,
		 billing ? billing->values[0].string.text : "-",
        	 hostname->values[0].string.text);
  cupsFileFlush(PageFile);

  return (1);
}


/*
 * 'cupsdLogRequest()' - Log an HTTP request in Common Log Format.
 */

int					/* O - 1 on success, 0 on error */
cupsdLogRequest(cupsd_client_t *con,	/* I - Request to log */
                http_status_t  code)	/* I - Response code */
{
  static const char * const states[] =	/* HTTP client states... */
		{
		  "WAITING",
		  "OPTIONS",
		  "GET",
		  "GET",
		  "HEAD",
		  "POST",
		  "POST",
		  "POST",
		  "PUT",
		  "PUT",
		  "DELETE",
		  "TRACE",
		  "CLOSE",
		  "STATUS"
		};


#ifdef HAVE_VSYSLOG
 /*
  * See if we are logging accesses via syslog...
  */

  if (!strcmp(AccessLog, "syslog"))
  {
    syslog(LOG_INFO, "REQUEST %s - %s \"%s %s HTTP/%d.%d\" %d " CUPS_LLFMT "\n",
           con->http.hostname, con->username[0] != '\0' ? con->username : "-",
	   states[con->operation], con->uri,
	   con->http.version / 100, con->http.version % 100,
	   code, CUPS_LLCAST con->bytes);

    return (1);
  }
#endif /* HAVE_VSYSLOG */

 /*
  * Not using syslog; check the log file...
  */

  if (!check_log_file(&AccessFile, AccessLog))
    return (0);

 /*
  * Write a log of the request in "common log format"...
  */

  cupsFilePrintf(AccessFile,
                 "%s - %s %s \"%s %s HTTP/%d.%d\" %d " CUPS_LLFMT " %s %s\n",
        	 con->http.hostname, con->username[0] != '\0' ? con->username : "-",
		 cupsdGetDateTime(con->start), states[con->operation], con->uri,
		 con->http.version / 100, con->http.version % 100,
		 code, CUPS_LLCAST con->bytes,
		 con->request ?
		     ippOpString(con->request->request.op.operation_id) : "-",
		 con->response ?
		     ippErrorString(con->response->request.status.status_code) :
		     "-");

  cupsFileFlush(AccessFile);

  return (1);
}


/*
 * 'check_log_file()' - Open/rotate a log file if it needs it.
 */

static int				/* O  - 1 if log file open */
check_log_file(cups_file_t **lf,	/* IO - Log file */
	       const char  *logname)	/* I  - Log filename */
{
  char	backname[1024],			/* Backup log filename */
	filename[1024],			/* Formatted log filename */
	*ptr;				/* Pointer into filename */


 /*
  * See if we have a log file to check...
  */

  if (!lf || !logname || !logname[0])
    return (1);

 /*
  * Format the filename as needed...
  */

  if (!*lf || (cupsFileTell(*lf) > MaxLogSize && MaxLogSize > 0))
  {
   /*
    * Handle format strings...
    */

    filename[sizeof(filename) - 1] = '\0';

    if (logname[0] != '/')
    {
      strlcpy(filename, ServerRoot, sizeof(filename));
      strlcat(filename, "/", sizeof(filename));
    }
    else
      filename[0] = '\0';

    for (ptr = filename + strlen(filename);
         *logname && ptr < (filename + sizeof(filename) - 1);
	 logname ++)
      if (*logname == '%')
      {
       /*
        * Format spec...
	*/

        logname ++;
	if (*logname == 's')
	{
	 /*
	  * Insert the server name...
	  */

	  strlcpy(ptr, ServerName, sizeof(filename) - (ptr - filename));
	  ptr += strlen(ptr);
	}
        else
	{
	 /*
	  * Otherwise just insert the character...
	  */

	  *ptr++ = *logname;
	}
      }
      else
	*ptr++ = *logname;

    *ptr = '\0';
  }

 /*
  * See if the log file is open...
  */

  if (!*lf)
  {
   /*
    * Nope, open the log file...
    */

    if ((*lf = cupsFileOpen(filename, "a")) == NULL)
    {
      syslog(LOG_ERR, "Unable to open log file \"%s\" - %s", filename,
             strerror(errno));

      return (0);
    }

    if (strncmp(filename, "/dev/", 5))
    {
     /*
      * Change ownership and permissions of non-device logs...
      */

      fchown(cupsFileNumber(*lf), RunUser, Group);
      fchmod(cupsFileNumber(*lf), LogFilePerm);
    }
  }

 /*
  * Do we need to rotate the log?
  */

  if (cupsFileTell(*lf) > MaxLogSize && MaxLogSize > 0)
  {
   /*
    * Rotate log file...
    */

    cupsFileClose(*lf);

    strcpy(backname, filename);
    strlcat(backname, ".O", sizeof(backname));

    unlink(backname);
    rename(filename, backname);

    if ((*lf = cupsFileOpen(filename, "a")) == NULL)
    {
      syslog(LOG_ERR, "Unable to open log file \"%s\" - %s", filename,
             strerror(errno));

      return (0);
    }

    if (strncmp(filename, "/dev/", 5))
    {
     /*
      * Change ownership and permissions of non-device logs...
      */

      fchown(cupsFileNumber(*lf), RunUser, Group);
      fchmod(cupsFileNumber(*lf), LogFilePerm);
    }
  }

  return (1);
}


/*
 * End of "$Id: log.c 4860 2005-12-01 22:07:26Z mike $".
 */
Commit	Line	Data
ef416fc2	1	/*
	2	* "$Id: log.c 4860 2005-12-01 22:07:26Z mike $"
	3	*
	4	* Log file routines for the Common UNIX Printing System (CUPS).
	5	*
	6	* Copyright 1997-2005 by Easy Software Products, all rights reserved.
	7	*
	8	* These coded instructions, statements, and computer programs are the
	9	* property of Easy Software Products and are protected by Federal
	10	* copyright law. Distribution and use rights are outlined in the file
	11	* "LICENSE.txt" which should have been included with this file. If this
	12	* file is missing or damaged please contact Easy Software Products
	13	* at:
	14	*
	15	* Attn: CUPS Licensing Information
	16	* Easy Software Products
	17	* 44141 Airport View Drive, Suite 204
	18	* Hollywood, Maryland 20636 USA
	19	*
	20	* Voice: (301) 373-9600
	21	* EMail: cups-info@cups.org
	22	* WWW: http://www.cups.org
	23	*
	24	* Contents:
	25	*
	26	* cupsdGetDateTime() - Returns a pointer to a date/time string.
	27	* cupsdLogMessage() - Log a message to the error log file.
	28	* cupsdLogPage() - Log a page to the page log file.
	29	* cupsdLogRequest() - Log an HTTP request in Common Log Format.
	30	* check_log_file() - Open/rotate a log file if it needs it.
	31	*/
	32
	33	/*
	34	* Include necessary headers...
	35	*/
	36
	37	#include "cupsd.h"
	38	#include <stdarg.h>
	39
	40	#ifdef HAVE_VSYSLOG
	41	# include <syslog.h>
	42	#endif /* HAVE_VSYSLOG */
	43
	44
	45	/*
	46	* Local functions...
	47	*/
	48
	49	static int check_log_file(cups_file_t *, const char );
	50
	51
	52	/*
	53	* 'cupsdGetDateTime()' - Returns a pointer to a date/time string.
	54	*/
	55
	56	char * /* O - Date/time string */
	57	cupsdGetDateTime(time_t t) /* I - Time value */
	58	{
	59	struct tm date; / Date/time value */
	60	static time_t last_time = -1; /* Last time value */
	61	static char s[1024]; /* Date/time string */
	62	static const char * const months[12] =/* Months */
	63	{
	64	"Jan",
65	"Feb",
66	"Mar",
67	"Apr",
68	"May",
69	"Jun",
70	"Jul",
71	"Aug",
72	"Sep",
73	"Oct",
74	"Nov",
75	"Dec"
76	};
77
78
79	if (t != last_time)
80	{
81	last_time = t;
82
83	/*
84	* Get the date and time from the UNIX time value, and then format it
85	* into a string. Note that we can't use the strftime() function since
86	* it is localized and will seriously confuse automatic programs if the
87	* month names are in the wrong language!
88	*
89	* Also, we use the "timezone" variable that contains the current timezone
90	* offset from GMT in seconds so that we are reporting local time in the
91	* log files. If you want GMT, set the TZ environment variable accordingly
92	* before starting the scheduler.
93	*
94	* (*BSD and Darwin store the timezone offset in the tm structure)
95	*/
96
97	date = localtime(&t);
98
99	snprintf(s, sizeof(s), "[%02d/%s/%04d:%02d:%02d:%02d %+03ld%02ld]",
100	date->tm_mday, months[date->tm_mon], 1900 + date->tm_year,
101	date->tm_hour, date->tm_min, date->tm_sec,
102	#ifdef HAVE_TM_GMTOFF
103	date->tm_gmtoff / 3600, (date->tm_gmtoff / 60) % 60);
104	#else
105	timezone / 3600, (timezone / 60) % 60);
106	#endif /* HAVE_TM_GMTOFF */
107	}
108
109	return (s);
110	}
111
112
113	/*
114	* 'cupsdLogMessage()' - Log a message to the error log file.
115	*/
116
117	int /* O - 1 on success, 0 on error */
118	cupsdLogMessage(int level, /* I - Log level */
119	const char message, / I - printf-style message string */
120	...) /* I - Additional args as needed */
121	{
122	int len; /* Length of message */
123	va_list ap; /* Argument pointer */
124	static const char levels[] = /* Log levels... */
125	{
126	' ',
127	'X',
128	'A',
129	'C',
130	'E',
131	'W',
132	'N',
133	'I',
134	'D',
135	'd'
136	};
137	#ifdef HAVE_VSYSLOG
138	static const int syslevels[] = /* SYSLOG levels... */
139	{
140	0,
141	LOG_EMERG,
142	LOG_ALERT,
143	LOG_CRIT,
144	LOG_ERR,
145	LOG_WARNING,
146	LOG_NOTICE,
147	LOG_INFO,
148	LOG_DEBUG,
149	LOG_DEBUG
150	};
151	#endif /* HAVE_VSYSLOG */
152	static int linesize = 0; /* Size of line for output file */
153	static char line = NULL; / Line for output file */
154
155
156	/*
157	* See if we want to log this message...
158	*/
159
160	if (level > LogLevel \|\| !ErrorLog)
161	return (1);
162
163	#ifdef HAVE_VSYSLOG
164	/*
165	* See if we are logging errors via syslog...
166	*/
167
168	if (!strcmp(ErrorLog, "syslog"))
169	{
170	va_start(ap, message);
171	vsyslog(syslevels[level], message, ap);
172	va_end(ap);
173
174	return (1);
175	}
176	#endif /* HAVE_VSYSLOG */
177
178	/*
179	* Not using syslog; check the log file...
180	*/
181
182	if (!check_log_file(&ErrorFile, ErrorLog))
183	return (0);
184
185	/*
186	* Print the log level and date/time...
187	*/
188
189	cupsFilePrintf(ErrorFile, "%c %s ", levels[level], cupsdGetDateTime(time(NULL)));
190
191	/*
192	* Allocate the line buffer as needed...
193	*/
194
195	if (!linesize)
196	{
197	linesize = 8192;
198	line = malloc(linesize);
199
200	if (!line)
201	{
202	cupsFilePrintf(ErrorFile,
203	"ERROR: Unable to allocate memory for line - %s\n",
204	strerror(errno));
205	cupsFileFlush(ErrorFile);
206
207	return (0);
208	}
209	}
210
211	/*
212	* Format the log message...
213	*/
214
215	va_start(ap, message);
216	len = vsnprintf(line, linesize, message, ap);
217	va_end(ap);
218
219	/*
220	* Resize the buffer as needed...
221	*/
222
223	if (len >= linesize)
224	{
225	len ++;
226
227	if (len < 8192)
228	len = 8192;
229	else if (len > 65536)
230	len = 65536;
231
232	line = realloc(line, len);
233
234	if (line)
235	linesize = len;
236	else
237	{
238	cupsFilePrintf(ErrorFile,
239	"ERROR: Unable to allocate memory for line - %s\n",
240	strerror(errno));
241	cupsFileFlush(ErrorFile);
242
243	return (0);
244	}
245
246	va_start(ap, message);
247	len = vsnprintf(line, linesize, message, ap);
248	va_end(ap);
249	}
250
251	if (len >= linesize)
252	len = linesize - 1;
253
254	/*
255	* Then the log message...
256	*/
257
258	cupsFilePuts(ErrorFile, line);
259
260	/*
261	* Then a newline...
262	*/
263
264	if (len > 0 && line[len - 1] != '\n')
265	cupsFilePutChar(ErrorFile, '\n');
266
267	/*
268	* Flush the line to the file and return...
269	*/
270
271	cupsFileFlush(ErrorFile);
272
273	return (1);
274	}
275
276
277	/*
278	* 'cupsdLogPage()' - Log a page to the page log file.
279	*/
280
281	int /* O - 1 on success, 0 on error */
282	cupsdLogPage(cupsd_job_t job, / I - Job being printed */
283	const char page) / I - Page being printed */
284	{
285	ipp_attribute_t billing, / job-billing attribute */
286	hostname; / job-originating-host-name attribute */
287
288
289	billing = ippFindAttribute(job->attrs, "job-billing", IPP_TAG_ZERO);
290	hostname = ippFindAttribute(job->attrs, "job-originating-host-name",
291	IPP_TAG_ZERO);
292
293	#ifdef HAVE_VSYSLOG
294	/*
295	* See if we are logging pages via syslog...
296	*/
297
298	if (!strcmp(PageLog, "syslog"))
299	{
300	syslog(LOG_INFO, "PAGE %s %s %d %s %s %s", job->printer->name,
301	job->username ? job->username : "-",
302	job->id, page, billing ? billing->values[0].string.text : "-",
303	hostname->values[0].string.text);
304
305	return (1);
306	}
307	#endif /* HAVE_VSYSLOG */
308
309	/*
310	* Not using syslog; check the log file...
311	*/
312
313	if (!check_log_file(&PageFile, PageLog))
314	return (0);
315
316	/*
317	* Print a page log entry of the form:
318	*
319	* printer job-id user [DD/MON/YYYY:HH:MM:SS +TTTT] page num-copies \
320	* billing hostname
321	*/
322
323	cupsFilePrintf(PageFile, "%s %s %d %s %s %s %s\n", job->printer->name,
324	job->username ? job->username : "-",
325	job->id, cupsdGetDateTime(time(NULL)), page,
326	billing ? billing->values[0].string.text : "-",
327	hostname->values[0].string.text);
328	cupsFileFlush(PageFile);
329
330	return (1);
331	}
332
333
334	/*
335	* 'cupsdLogRequest()' - Log an HTTP request in Common Log Format.
336	*/
337
338	int /* O - 1 on success, 0 on error */
339	cupsdLogRequest(cupsd_client_t con, / I - Request to log */
340	http_status_t code) /* I - Response code */
341	{
342	static const char * const states[] = /* HTTP client states... */
343	{
344	"WAITING",
345	"OPTIONS",
346	"GET",
347	"GET",
348	"HEAD",
349	"POST",
350	"POST",
351	"POST",
352	"PUT",
353	"PUT",
354	"DELETE",
355	"TRACE",
356	"CLOSE",
357	"STATUS"
358	};
359
360
361	#ifdef HAVE_VSYSLOG
362	/*
363	* See if we are logging accesses via syslog...
364	*/
365
366	if (!strcmp(AccessLog, "syslog"))
367	{
368	syslog(LOG_INFO, "REQUEST %s - %s \"%s %s HTTP/%d.%d\" %d " CUPS_LLFMT "\n",
369	con->http.hostname, con->username[0] != '\0' ? con->username : "-",
370	states[con->operation], con->uri,
371	con->http.version / 100, con->http.version % 100,
372	code, CUPS_LLCAST con->bytes);
373
374	return (1);
375	}
376	#endif /* HAVE_VSYSLOG */
377
378	/*
379	* Not using syslog; check the log file...
380	*/
381
382	if (!check_log_file(&AccessFile, AccessLog))
383	return (0);
384
385	/*
386	* Write a log of the request in "common log format"...
387	*/
388
389	cupsFilePrintf(AccessFile,
390	"%s - %s %s \"%s %s HTTP/%d.%d\" %d " CUPS_LLFMT " %s %s\n",
391	con->http.hostname, con->username[0] != '\0' ? con->username : "-",
392	cupsdGetDateTime(con->start), states[con->operation], con->uri,
393	con->http.version / 100, con->http.version % 100,
394	code, CUPS_LLCAST con->bytes,
395	con->request ?
396	ippOpString(con->request->request.op.operation_id) : "-",
397	con->response ?
398	ippErrorString(con->response->request.status.status_code) :
399	"-");
400
401	cupsFileFlush(AccessFile);
402
403	return (1);
404	}
405
406
407	/*
408	* 'check_log_file()' - Open/rotate a log file if it needs it.
409	*/
410
411	static int /* O - 1 if log file open */
412	check_log_file(cups_file_t *lf, / IO - Log file */
413	const char logname) / I - Log filename */
414	{
415	char backname[1024], /* Backup log filename */
416	filename[1024], /* Formatted log filename */
417	ptr; / Pointer into filename */
418
419
420	/*
421	* See if we have a log file to check...
422	*/
423
424	if (!lf \|\| !logname \|\| !logname[0])
425	return (1);
426
427	/*
428	* Format the filename as needed...
429	*/
430
431	if (!lf \|\| (cupsFileTell(lf) > MaxLogSize && MaxLogSize > 0))
432	{
433	/*
434	* Handle format strings...
435	*/
436
437	filename[sizeof(filename) - 1] = '\0';
438
439	if (logname[0] != '/')
440	{
441	strlcpy(filename, ServerRoot, sizeof(filename));
442	strlcat(filename, "/", sizeof(filename));
443	}
444	else
445	filename[0] = '\0';
446
447	for (ptr = filename + strlen(filename);
448	*logname && ptr < (filename + sizeof(filename) - 1);
449	logname ++)
450	if (*logname == '%')
451	{
452	/*
453	* Format spec...
454	*/
455
456	logname ++;
457	if (*logname == 's')
458	{
459	/*
460	* Insert the server name...
461	*/
462
463	strlcpy(ptr, ServerName, sizeof(filename) - (ptr - filename));
464	ptr += strlen(ptr);
465	}
466	else
467	{
468	/*
469	* Otherwise just insert the character...
470	*/
471
472	ptr++ = logname;
473	}
474	}
475	else
476	ptr++ = logname;
477
478	*ptr = '\0';
479	}
480
481	/*
482	* See if the log file is open...
483	*/
484
485	if (!*lf)
486	{
487	/*
488	* Nope, open the log file...
489	*/
490
491	if ((*lf = cupsFileOpen(filename, "a")) == NULL)
492	{
493	syslog(LOG_ERR, "Unable to open log file \"%s\" - %s", filename,
494	strerror(errno));
495
496	return (0);
497	}
498
499	if (strncmp(filename, "/dev/", 5))
500	{
501	/*
502	* Change ownership and permissions of non-device logs...
503	*/
504
505	fchown(cupsFileNumber(*lf), RunUser, Group);
506	fchmod(cupsFileNumber(*lf), LogFilePerm);
507	}
508	}
509
510	/*
511	* Do we need to rotate the log?
512	*/
513
514	if (cupsFileTell(*lf) > MaxLogSize && MaxLogSize > 0)
515	{
516	/*
517	* Rotate log file...
518	*/
519
520	cupsFileClose(*lf);
521
522	strcpy(backname, filename);
523	strlcat(backname, ".O", sizeof(backname));
524
525	unlink(backname);
526	rename(filename, backname);
527
528	if ((*lf = cupsFileOpen(filename, "a")) == NULL)
529	{
530	syslog(LOG_ERR, "Unable to open log file \"%s\" - %s", filename,
531	strerror(errno));
532
533	return (0);
534	}
535
536	if (strncmp(filename, "/dev/", 5))
537	{
538	/*
539	* Change ownership and permissions of non-device logs...
540	*/
541
542	fchown(cupsFileNumber(*lf), RunUser, Group);
543	fchmod(cupsFileNumber(*lf), LogFilePerm);
544	}
545	}
546
547	return (1);
548	}
549
550
551	/*
552	* End of "$Id: log.c 4860 2005-12-01 22:07:26Z mike $".
553	*/