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git.ipfire.org Git - thirdparty/cups.git/blob - scheduler/statbuf.c
4 * Status buffer routines for the CUPS scheduler.
6 * Copyright 2007-2014 by Apple Inc.
7 * Copyright 1997-2006 by Easy Software Products, all rights reserved.
9 * These coded instructions, statements, and computer programs are the
10 * property of Apple Inc. and are protected by Federal copyright
11 * law. Distribution and use rights are outlined in the file "LICENSE.txt"
12 * which should have been included with this file. If this file is
13 * file is missing or damaged, see the license at "http://www.cups.org/".
17 * Include necessary headers...
25 * 'cupsdStatBufDelete()' - Destroy a status buffer.
29 cupsdStatBufDelete(cupsd_statbuf_t
*sb
) /* I - Status buffer */
32 * Range check input...
39 * Close the status pipe and free memory used...
49 * 'cupsdStatBufNew()' - Create a new status buffer.
52 cupsd_statbuf_t
* /* O - New status buffer */
53 cupsdStatBufNew(int fd
, /* I - File descriptor of pipe */
54 const char *prefix
, /* I - Printf-style prefix string */
55 ...) /* I - Additional args as needed */
57 cupsd_statbuf_t
*sb
; /* New status buffer */
58 va_list ap
; /* Argument list */
62 * Range check input...
69 * Allocate the status buffer...
72 if ((sb
= calloc(1, sizeof(cupsd_statbuf_t
))) != NULL
)
75 * Assign the file descriptor...
81 * Format the prefix string, if any. This is usually "[Job 123]"
82 * or "[Sub 123]", and so forth.
88 * Printf-style prefix string...
92 vsnprintf(sb
->prefix
, sizeof(sb
->prefix
), prefix
, ap
);
101 sb
->prefix
[0] = '\0';
110 * 'cupsdStatBufUpdate()' - Update the status buffer.
113 char * /* O - Line from buffer, "", or NULL */
115 cupsd_statbuf_t
*sb
, /* I - Status buffer */
116 int *loglevel
, /* O - Log level */
117 char *line
, /* I - Line buffer */
118 int linelen
) /* I - Size of line buffer */
120 int bytes
; /* Number of bytes read */
121 char *lineptr
, /* Pointer to end of line in buffer */
122 *message
; /* Pointer to message text */
126 * Check if the buffer already contains a full line...
129 if ((lineptr
= strchr(sb
->buffer
, '\n')) == NULL
)
132 * No, read more data...
135 if ((bytes
= read(sb
->fd
, sb
->buffer
+ sb
->bufused
, (size_t)(CUPSD_SB_BUFFER_SIZE
- sb
->bufused
- 1))) > 0)
137 sb
->bufused
+= bytes
;
138 sb
->buffer
[sb
->bufused
] = '\0';
141 * Guard against a line longer than the max buffer size...
144 if ((lineptr
= strchr(sb
->buffer
, '\n')) == NULL
&&
145 sb
->bufused
== (CUPSD_SB_BUFFER_SIZE
- 1))
146 lineptr
= sb
->buffer
+ sb
->bufused
;
148 else if (bytes
< 0 && errno
== EINTR
)
151 * Return an empty line if we are interrupted...
154 *loglevel
= CUPSD_LOG_NONE
;
162 * End-of-file, so use the whole buffer...
165 lineptr
= sb
->buffer
+ sb
->bufused
;
170 * Final check for end-of-file...
173 if (sb
->bufused
== 0 && bytes
== 0)
183 *loglevel
= CUPSD_LOG_NONE
;
190 * Terminate the line and process it...
196 * Figure out the logging level...
199 if (!strncmp(sb
->buffer
, "EMERG:", 6))
201 *loglevel
= CUPSD_LOG_EMERG
;
202 message
= sb
->buffer
+ 6;
204 else if (!strncmp(sb
->buffer
, "ALERT:", 6))
206 *loglevel
= CUPSD_LOG_ALERT
;
207 message
= sb
->buffer
+ 6;
209 else if (!strncmp(sb
->buffer
, "CRIT:", 5))
211 *loglevel
= CUPSD_LOG_CRIT
;
212 message
= sb
->buffer
+ 5;
214 else if (!strncmp(sb
->buffer
, "ERROR:", 6))
216 *loglevel
= CUPSD_LOG_ERROR
;
217 message
= sb
->buffer
+ 6;
219 else if (!strncmp(sb
->buffer
, "WARNING:", 8))
221 *loglevel
= CUPSD_LOG_WARN
;
222 message
= sb
->buffer
+ 8;
224 else if (!strncmp(sb
->buffer
, "NOTICE:", 7))
226 *loglevel
= CUPSD_LOG_NOTICE
;
227 message
= sb
->buffer
+ 7;
229 else if (!strncmp(sb
->buffer
, "INFO:", 5))
231 *loglevel
= CUPSD_LOG_INFO
;
232 message
= sb
->buffer
+ 5;
234 else if (!strncmp(sb
->buffer
, "DEBUG:", 6))
236 *loglevel
= CUPSD_LOG_DEBUG
;
237 message
= sb
->buffer
+ 6;
239 else if (!strncmp(sb
->buffer
, "DEBUG2:", 7))
241 *loglevel
= CUPSD_LOG_DEBUG2
;
242 message
= sb
->buffer
+ 7;
244 else if (!strncmp(sb
->buffer
, "PAGE:", 5))
246 *loglevel
= CUPSD_LOG_PAGE
;
247 message
= sb
->buffer
+ 5;
249 else if (!strncmp(sb
->buffer
, "STATE:", 6))
251 *loglevel
= CUPSD_LOG_STATE
;
252 message
= sb
->buffer
+ 6;
254 else if (!strncmp(sb
->buffer
, "JOBSTATE:", 9))
256 *loglevel
= CUPSD_LOG_JOBSTATE
;
257 message
= sb
->buffer
+ 9;
259 else if (!strncmp(sb
->buffer
, "ATTR:", 5))
261 *loglevel
= CUPSD_LOG_ATTR
;
262 message
= sb
->buffer
+ 5;
264 else if (!strncmp(sb
->buffer
, "PPD:", 4))
266 *loglevel
= CUPSD_LOG_PPD
;
267 message
= sb
->buffer
+ 4;
271 *loglevel
= CUPSD_LOG_DEBUG
;
272 message
= sb
->buffer
;
276 * Skip leading whitespace in the message...
279 while (isspace(*message
& 255))
283 * Send it to the log file as needed...
288 if (*loglevel
> CUPSD_LOG_NONE
&&
289 (*loglevel
!= CUPSD_LOG_INFO
|| LogLevel
>= CUPSD_LOG_DEBUG
))
292 * General status message; send it to the error_log file...
295 if (message
[0] == '[')
296 cupsdLogMessage(*loglevel
, "%s", message
);
298 cupsdLogMessage(*loglevel
, "%s %s", sb
->prefix
, message
);
300 else if (*loglevel
< CUPSD_LOG_NONE
&& LogLevel
>= CUPSD_LOG_DEBUG
)
301 cupsdLogMessage(CUPSD_LOG_DEBUG2
, "%s %s", sb
->prefix
, sb
->buffer
);
305 * Copy the message to the line buffer...
308 strlcpy(line
, message
, (size_t)linelen
);
311 * Copy over the buffer data we've used up...
314 if (lineptr
< sb
->buffer
+ sb
->bufused
)
315 _cups_strcpy(sb
->buffer
, lineptr
);
317 sb
->bufused
-= lineptr
- sb
->buffer
;