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ef416fc2 | 1 | /* |
f2d18633 | 2 | * "$Id$" |
ef416fc2 | 3 | * |
7e86f2f6 | 4 | * Status buffer routines for the CUPS scheduler. |
ef416fc2 | 5 | * |
7e86f2f6 MS |
6 | * Copyright 2007-2014 by Apple Inc. |
7 | * Copyright 1997-2006 by Easy Software Products, all rights reserved. | |
ef416fc2 | 8 | * |
7e86f2f6 MS |
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/". | |
ef416fc2 | 14 | */ |
15 | ||
16 | /* | |
17 | * Include necessary headers... | |
18 | */ | |
19 | ||
20 | #include "cupsd.h" | |
21 | #include <stdarg.h> | |
22 | ||
23 | ||
75bd9771 MS |
24 | /* |
25 | * 'cupsdStatBufDelete()' - Destroy a status buffer. | |
26 | */ | |
27 | ||
28 | void | |
29 | cupsdStatBufDelete(cupsd_statbuf_t *sb) /* I - Status buffer */ | |
30 | { | |
31 | /* | |
32 | * Range check input... | |
33 | */ | |
34 | ||
35 | if (!sb) | |
36 | return; | |
37 | ||
38 | /* | |
39 | * Close the status pipe and free memory used... | |
40 | */ | |
41 | ||
42 | close(sb->fd); | |
43 | ||
44 | free(sb); | |
45 | } | |
46 | ||
47 | ||
ef416fc2 | 48 | /* |
49 | * 'cupsdStatBufNew()' - Create a new status buffer. | |
50 | */ | |
51 | ||
52 | cupsd_statbuf_t * /* O - New status buffer */ | |
b9faaae1 | 53 | cupsdStatBufNew(int fd, /* I - File descriptor of pipe */ |
ef416fc2 | 54 | const char *prefix, /* I - Printf-style prefix string */ |
55 | ...) /* I - Additional args as needed */ | |
56 | { | |
57 | cupsd_statbuf_t *sb; /* New status buffer */ | |
58 | va_list ap; /* Argument list */ | |
59 | ||
60 | ||
61 | /* | |
62 | * Range check input... | |
63 | */ | |
64 | ||
65 | if (fd < 0) | |
66 | return (NULL); | |
67 | ||
68 | /* | |
69 | * Allocate the status buffer... | |
70 | */ | |
71 | ||
72 | if ((sb = calloc(1, sizeof(cupsd_statbuf_t))) != NULL) | |
73 | { | |
74 | /* | |
75 | * Assign the file descriptor... | |
76 | */ | |
77 | ||
78 | sb->fd = fd; | |
79 | ||
80 | /* | |
81 | * Format the prefix string, if any. This is usually "[Job 123]" | |
82 | * or "[Sub 123]", and so forth. | |
83 | */ | |
84 | ||
85 | if (prefix) | |
86 | { | |
87 | /* | |
88 | * Printf-style prefix string... | |
89 | */ | |
90 | ||
91 | va_start(ap, prefix); | |
92 | vsnprintf(sb->prefix, sizeof(sb->prefix), prefix, ap); | |
93 | va_end(ap); | |
94 | } | |
95 | else | |
96 | { | |
97 | /* | |
98 | * No prefix string... | |
99 | */ | |
100 | ||
101 | sb->prefix[0] = '\0'; | |
102 | } | |
103 | } | |
104 | ||
105 | return (sb); | |
106 | } | |
107 | ||
108 | ||
ef416fc2 | 109 | /* |
110 | * 'cupsdStatBufUpdate()' - Update the status buffer. | |
111 | */ | |
112 | ||
113 | char * /* O - Line from buffer, "", or NULL */ | |
f0ab5bff MS |
114 | cupsdStatBufUpdate( |
115 | cupsd_statbuf_t *sb, /* I - Status buffer */ | |
a469f8a5 | 116 | int *loglevel, /* O - Log level */ |
f0ab5bff MS |
117 | char *line, /* I - Line buffer */ |
118 | int linelen) /* I - Size of line buffer */ | |
ef416fc2 | 119 | { |
120 | int bytes; /* Number of bytes read */ | |
121 | char *lineptr, /* Pointer to end of line in buffer */ | |
122 | *message; /* Pointer to message text */ | |
123 | ||
124 | ||
125 | /* | |
126 | * Check if the buffer already contains a full line... | |
127 | */ | |
128 | ||
129 | if ((lineptr = strchr(sb->buffer, '\n')) == NULL) | |
130 | { | |
131 | /* | |
132 | * No, read more data... | |
133 | */ | |
134 | ||
7e86f2f6 | 135 | if ((bytes = read(sb->fd, sb->buffer + sb->bufused, (size_t)(CUPSD_SB_BUFFER_SIZE - sb->bufused - 1))) > 0) |
ef416fc2 | 136 | { |
137 | sb->bufused += bytes; | |
138 | sb->buffer[sb->bufused] = '\0'; | |
139 | ||
140 | /* | |
141 | * Guard against a line longer than the max buffer size... | |
142 | */ | |
143 | ||
144 | if ((lineptr = strchr(sb->buffer, '\n')) == NULL && | |
145 | sb->bufused == (CUPSD_SB_BUFFER_SIZE - 1)) | |
146 | lineptr = sb->buffer + sb->bufused; | |
147 | } | |
148 | else if (bytes < 0 && errno == EINTR) | |
149 | { | |
150 | /* | |
151 | * Return an empty line if we are interrupted... | |
152 | */ | |
153 | ||
154 | *loglevel = CUPSD_LOG_NONE; | |
155 | line[0] = '\0'; | |
156 | ||
157 | return (line); | |
158 | } | |
159 | else | |
160 | { | |
161 | /* | |
162 | * End-of-file, so use the whole buffer... | |
163 | */ | |
164 | ||
165 | lineptr = sb->buffer + sb->bufused; | |
166 | *lineptr = '\0'; | |
167 | } | |
168 | ||
169 | /* | |
170 | * Final check for end-of-file... | |
171 | */ | |
172 | ||
173 | if (sb->bufused == 0 && bytes == 0) | |
174 | lineptr = NULL; | |
175 | } | |
176 | ||
d09495fa | 177 | if (!lineptr) |
ef416fc2 | 178 | { |
179 | /* | |
180 | * End of file... | |
181 | */ | |
182 | ||
183 | *loglevel = CUPSD_LOG_NONE; | |
184 | line[0] = '\0'; | |
185 | ||
186 | return (NULL); | |
187 | } | |
188 | ||
189 | /* | |
190 | * Terminate the line and process it... | |
191 | */ | |
192 | ||
193 | *lineptr++ = '\0'; | |
194 | ||
195 | /* | |
196 | * Figure out the logging level... | |
197 | */ | |
198 | ||
199 | if (!strncmp(sb->buffer, "EMERG:", 6)) | |
200 | { | |
201 | *loglevel = CUPSD_LOG_EMERG; | |
202 | message = sb->buffer + 6; | |
203 | } | |
204 | else if (!strncmp(sb->buffer, "ALERT:", 6)) | |
205 | { | |
206 | *loglevel = CUPSD_LOG_ALERT; | |
207 | message = sb->buffer + 6; | |
208 | } | |
209 | else if (!strncmp(sb->buffer, "CRIT:", 5)) | |
210 | { | |
211 | *loglevel = CUPSD_LOG_CRIT; | |
212 | message = sb->buffer + 5; | |
213 | } | |
214 | else if (!strncmp(sb->buffer, "ERROR:", 6)) | |
215 | { | |
216 | *loglevel = CUPSD_LOG_ERROR; | |
217 | message = sb->buffer + 6; | |
218 | } | |
219 | else if (!strncmp(sb->buffer, "WARNING:", 8)) | |
220 | { | |
221 | *loglevel = CUPSD_LOG_WARN; | |
222 | message = sb->buffer + 8; | |
223 | } | |
224 | else if (!strncmp(sb->buffer, "NOTICE:", 7)) | |
225 | { | |
226 | *loglevel = CUPSD_LOG_NOTICE; | |
227 | message = sb->buffer + 7; | |
228 | } | |
229 | else if (!strncmp(sb->buffer, "INFO:", 5)) | |
230 | { | |
231 | *loglevel = CUPSD_LOG_INFO; | |
232 | message = sb->buffer + 5; | |
233 | } | |
234 | else if (!strncmp(sb->buffer, "DEBUG:", 6)) | |
235 | { | |
236 | *loglevel = CUPSD_LOG_DEBUG; | |
237 | message = sb->buffer + 6; | |
238 | } | |
239 | else if (!strncmp(sb->buffer, "DEBUG2:", 7)) | |
240 | { | |
241 | *loglevel = CUPSD_LOG_DEBUG2; | |
242 | message = sb->buffer + 7; | |
243 | } | |
244 | else if (!strncmp(sb->buffer, "PAGE:", 5)) | |
245 | { | |
246 | *loglevel = CUPSD_LOG_PAGE; | |
247 | message = sb->buffer + 5; | |
248 | } | |
249 | else if (!strncmp(sb->buffer, "STATE:", 6)) | |
250 | { | |
251 | *loglevel = CUPSD_LOG_STATE; | |
252 | message = sb->buffer + 6; | |
253 | } | |
a469f8a5 MS |
254 | else if (!strncmp(sb->buffer, "JOBSTATE:", 9)) |
255 | { | |
256 | *loglevel = CUPSD_LOG_JOBSTATE; | |
257 | message = sb->buffer + 9; | |
258 | } | |
ef416fc2 | 259 | else if (!strncmp(sb->buffer, "ATTR:", 5)) |
260 | { | |
261 | *loglevel = CUPSD_LOG_ATTR; | |
262 | message = sb->buffer + 5; | |
263 | } | |
c9fc04c6 MS |
264 | else if (!strncmp(sb->buffer, "PPD:", 4)) |
265 | { | |
266 | *loglevel = CUPSD_LOG_PPD; | |
267 | message = sb->buffer + 4; | |
268 | } | |
ef416fc2 | 269 | else |
270 | { | |
89d46774 | 271 | *loglevel = CUPSD_LOG_DEBUG; |
ef416fc2 | 272 | message = sb->buffer; |
273 | } | |
274 | ||
275 | /* | |
276 | * Skip leading whitespace in the message... | |
277 | */ | |
278 | ||
279 | while (isspace(*message & 255)) | |
280 | message ++; | |
281 | ||
282 | /* | |
283 | * Send it to the log file as needed... | |
284 | */ | |
285 | ||
75bd9771 | 286 | if (sb->prefix[0]) |
ef416fc2 | 287 | { |
75bd9771 | 288 | if (*loglevel > CUPSD_LOG_NONE && |
94da7e34 | 289 | (*loglevel != CUPSD_LOG_INFO || LogLevel >= CUPSD_LOG_DEBUG)) |
75bd9771 MS |
290 | { |
291 | /* | |
292 | * General status message; send it to the error_log file... | |
293 | */ | |
ef416fc2 | 294 | |
75bd9771 MS |
295 | if (message[0] == '[') |
296 | cupsdLogMessage(*loglevel, "%s", message); | |
297 | else | |
298 | cupsdLogMessage(*loglevel, "%s %s", sb->prefix, message); | |
299 | } | |
94da7e34 | 300 | else if (*loglevel < CUPSD_LOG_NONE && LogLevel >= CUPSD_LOG_DEBUG) |
75bd9771 | 301 | cupsdLogMessage(CUPSD_LOG_DEBUG2, "%s %s", sb->prefix, sb->buffer); |
ef416fc2 | 302 | } |
303 | ||
304 | /* | |
305 | * Copy the message to the line buffer... | |
306 | */ | |
307 | ||
07623986 | 308 | strlcpy(line, message, (size_t)linelen); |
ef416fc2 | 309 | |
310 | /* | |
311 | * Copy over the buffer data we've used up... | |
312 | */ | |
313 | ||
e53920b9 | 314 | if (lineptr < sb->buffer + sb->bufused) |
315 | _cups_strcpy(sb->buffer, lineptr); | |
316 | ||
ef416fc2 | 317 | sb->bufused -= lineptr - sb->buffer; |
318 | ||
319 | if (sb->bufused < 0) | |
320 | sb->bufused = 0; | |
321 | ||
322 | return (line); | |
323 | } | |
324 | ||
325 | ||
326 | /* | |
f2d18633 | 327 | * End of "$Id$". |
ef416fc2 | 328 | */ |