2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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29 * From: @(#)lp.h 8.2 (Berkeley) 4/28/95
33 #include <sys/queue.h>
38 * All this information used to be in global static variables shared
39 * mysteriously by various parts of the lpr/lpd suite.
40 * This structure attempts to centralize all these declarations in the
41 * hope that they can later be made more dynamic.
43 enum lpd_filters { LPF_CIFPLOT, LPF_DVI, LPF_GRAPH, LPF_INPUT,
44 LPF_DITROFF, LPF_OUTPUT, LPF_FORTRAN, LPF_TROFF,
45 LPF_RASTER, LPF_COUNT };
46 /* NB: there is a table in common.c giving the mapping from capability names */
49 char *printer; /* printer name */
50 int remote; /* true if RM points to a remote host */
51 int rp_matches_local; /* true if rp has same name as us */
52 int tof; /* true if we are at top-of-form */
53 /* ------------------------------------------------------ */
54 char *acct_file; /* AF: accounting file */
55 long baud_rate; /* BR: baud rate if lp is a tty */
56 char *filters[LPF_COUNT]; /* CF, DF, GF, IF, NF, OF, RF, TF, VF */
57 long conn_timeout; /* CT: TCP connection timeout */
58 long daemon_user; /* DU: daemon user id -- XXX belongs ???? */
59 char *form_feed; /* FF: form feed */
60 long header_last; /* HL: print header last */
61 char *log_file; /* LF: log file */
62 char *lock_file; /* LO: lock file */
63 char *lp; /* LP: device name or network address */
64 long max_copies; /* MC: maximum number of copies allowed */
65 long max_blocks; /* MX: maximum number of blocks to copy */
66 long price100; /* PC: price per 100 units of output */
67 long page_length; /* PL: page length */
68 long page_width; /* PW: page width */
69 long page_pwidth; /* PX: page width in pixels */
70 long page_plength; /* PY: page length in pixels */
71 long resend_copies; /* RC: resend copies to remote host */
72 char *restrict_grp; /* RG: restricted group */
73 char *remote_host; /* RM: remote machine name */
74 char *remote_queue; /* RP: remote printer name */
75 long restricted; /* RS: restricted to those with local accts */
76 long rw; /* RW: open LP for reading and writing */
77 long short_banner; /* SB: short banner */
78 long no_copies; /* SC: suppress multiple copies */
79 char *spool_dir; /* SD: spool directory */
80 long no_formfeed; /* SF: suppress FF on each print job */
81 long no_header; /* SH: suppress header page */
82 char *stat_recv; /* SR: statistics file, receiving jobs */
83 char *stat_send; /* SS: statistics file, sending jobs */
84 char *status_file; /* ST: status file name */
85 char *trailer; /* TR: trailer string send when Q empties */
86 char *mode_set; /* MS: mode set, a la stty */
88 /* variables used by trstat*() to keep statistics on file transfers */
90 char jobnum[JOBNUM_SIZE];
91 long jobdfnum; /* current datafile number within job */
92 struct timespec tr_start, tr_done;
93 #define TIMESTR_SIZE 40 /* holds result from LPD_TIMESTAMP_PATTERN */
94 char tr_timestr[TIMESTR_SIZE];
95 #define DIFFTIME_TS(endTS,startTS) \
96 ((double)(endTS.tv_sec - startTS.tv_sec) \
97 + (endTS.tv_nsec - startTS.tv_nsec) * 1.0e-9)
101 * Lists of user names and job numbers, for the benefit of the structs
102 * defined below. We use TAILQs so that requests don't get mysteriously
103 * reversed in process.
106 TAILQ_ENTRY(req_user) ru_link; /* macro glue */
107 char ru_uname[1]; /* name of user */
109 TAILQ_HEAD(req_user_head, req_user);
112 TAILQ_ENTRY(req_file) rf_link; /* macro glue */
113 char rf_type; /* type (lowercase cf file letter) of file */
114 char *rf_prettyname; /* user-visible name of file */
115 char rf_fname[1]; /* name of file */
117 TAILQ_HEAD(req_file_head, req_file);
120 TAILQ_ENTRY(req_jobid) rj_link; /* macro glue */
121 int rj_job; /* job number */
123 TAILQ_HEAD(req_jobid_head, req_jobid);
126 * Encapsulate all the information relevant to a request in the
129 enum req_type { REQ_START, REQ_RECVJOB, REQ_LIST, REQ_DELETE };
132 enum req_type type; /* what sort of request is this? */
133 struct printer prtr; /* which printer is it for? */
134 int remote; /* did request arrive over network? */
135 char *logname; /* login name of requesting user */
136 char *authname; /* authenticated identity of requesting user */
137 char *prettyname; /* ``pretty'' name of requesting user */
138 int privileged; /* was the request from a privileged user? */
139 void *authinfo; /* authentication information */
140 int authentic; /* was the request securely authenticated? */
142 /* Information for queries and deletes... */
143 int nusers; /* length of following list... */
144 struct req_user_head users; /* list of users to query/delete */
145 int njobids; /* length of following list... */
146 struct req_jobid_head jobids; /* list of jobids to query/delete */
150 * Global definitions for the line printer system.
152 extern char line[BUFSIZ];
153 extern const char *progname; /* program name (lpr, lpq, etc) */
156 * 'local_host' is the name of the machine that lpd (lpr, whatever)
157 * is actually running on.
159 * 'from_host' will point to the 'host' variable when receiving a job
160 * from a user on the same host, or "somewhere else" when receiving a
161 * job from a remote host. If 'from_host != local_host', then 'from_ip'
162 * is the character representation of the IP address of from_host (note
163 * that string could be an IPv6 address).
165 * Also note that when 'from_host' is not pointing at 'local_host', the
166 * string it is pointing at may be as long as NI_MAXHOST (which is very
167 * likely to be much longer than MAXHOSTNAMELEN).
169 extern char local_host[MAXHOSTNAMELEN];
170 extern const char *from_host; /* client's machine name */
171 extern const char *from_ip; /* client machine's IP address */
173 extern int requ[]; /* job number of spool entries */
174 extern int requests; /* # of spool requests */
175 extern char *user[]; /* users to process */
176 extern int users; /* # of users in user array */
177 extern char *person; /* name of person doing lprm */
178 extern u_char family; /* address family */
181 * Structure used for building a sorted list of control files.
182 * The job_processed value can be used by callers of getq(), to keep
183 * track of whatever processing they are doing.
186 time_t job_time; /* last-mod time of cf-file */
187 int job_matched; /* used by match_jobspec() */
188 int job_processed; /* set to zero by getq() */
189 char job_cfname[MAXNAMLEN+1]; /* control file name */
192 /* lpr/lpd generates readable timestamps for logfiles, etc. Have all those
193 * timestamps be in the same format wrt strftime(). This is ISO 8601 format,
194 * with the addition of an easy-readable day-of-the-week field. Note that
195 * '%T' = '%H:%M:%S', and that '%z' is not available on all platforms.
197 #define LPD_TIMESTAMP_PATTERN "%Y-%m-%dT%T%z %a"
200 * Codes to indicate which statistic records trstat_write should write.
202 typedef enum { TR_SENDING, TR_RECVING, TR_PRINTING } tr_sendrecv;
205 * Error codes for our mini printcap library.
207 #define PCAPERR_TCLOOP (-3)
208 #define PCAPERR_OSERR (-2)
209 #define PCAPERR_NOTFOUND (-1)
210 #define PCAPERR_SUCCESS 0
211 #define PCAPERR_TCOPEN 1
214 * File modes for the various status files maintained by lpd.
216 #define LOCK_FILE_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH)
217 #define LFM_PRINT_DIS (S_IXUSR)
218 #define LFM_QUEUE_DIS (S_IXGRP)
219 #define LFM_RESET_QUE (S_IXOTH)
221 #define STAT_FILE_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH)
222 #define LOG_FILE_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH)
223 #define TEMP_FILE_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH)
226 * Bit-flags for set_qstate() actions, followed by the return values.
228 #define SQS_DISABLEQ 0x01 /* Disable the queuing of new jobs */
229 #define SQS_STOPP 0x02 /* Stop the printing of jobs */
230 #define SQS_ENABLEQ 0x10 /* Enable the queuing of new jobs */
231 #define SQS_STARTP 0x20 /* Start the printing of jobs */
232 #define SQS_QCHANGED 0x80 /* The queue has changed (new jobs, etc) */
234 #define SQS_PARMERR -9 /* Invalid parameters from caller */
235 #define SQS_CREFAIL -3 /* File did not exist, and create failed */
236 #define SQS_CHGFAIL -2 /* File exists, but unable to change state */
237 #define SQS_STATFAIL -1 /* Unable to stat() the lock file */
238 #define SQS_CHGOK 1 /* File existed, and the state was changed */
239 #define SQS_CREOK 2 /* File did not exist, but was created OK */
240 #define SQS_SKIPCREOK 3 /* File did not exist, and there was */
241 /* no need to create it */
244 * Command codes used in the protocol.
246 #define CMD_CHECK_QUE '\1'
247 #define CMD_TAKE_THIS '\2'
248 #define CMD_SHOWQ_SHORT '\3'
249 #define CMD_SHOWQ_LONG '\4'
250 #define CMD_RMJOB '\5'
256 extern uid_t uid, euid;
258 #define PRIV_START { \
259 if (seteuid(euid) != 0) err(1, "seteuid failed"); \
262 if (seteuid(uid) != 0) err(1, "seteuid failed"); \
266 #include "lp.cdefs.h" /* A cross-platform version of <sys/cdefs.h> */
271 void blankfill(int _tocol);
272 int calc_jobnum(const char *_cfname, const char **_hostpp);
273 char *checkremote(struct printer *_pp);
274 int chk(char *_file);
275 void closeallfds(int _start);
276 void delay(int _millisec);
277 void displayq(struct printer *_pp, int _format);
278 void dump(const char *_nfile, const char *_datafile, int _copies);
279 void fatal(const struct printer *_pp, const char *_msg, ...)
281 int firstprinter(struct printer *_pp, int *_error);
282 void free_printer(struct printer *_pp);
283 void free_request(struct request *_rp);
284 int getline(FILE *_cfp);
285 int getport(const struct printer *_pp, const char *_rhost, int _rport);
286 int getprintcap(const char *_printer, struct printer *_pp);
287 int getq(const struct printer *_pp, struct jobqueue *(*_namelist[]));
289 void inform(const struct printer *_pp, char *_cf);
290 void init_printer(struct printer *_pp);
291 void init_request(struct request *_rp);
292 int inlist(char *_uname, char *_cfile);
293 int iscf(const struct dirent *_d);
294 void ldump(const char *_nfile, const char *_datafile, int _copies);
295 void lastprinter(void);
296 int lockchk(struct printer *_pp, char *_slockf);
297 char *lock_file_name(const struct printer *_pp, char *_buf, size_t _len);
298 void lpd_gettime(struct timespec *_tsp, char *_strp, size_t _strsize);
299 int nextprinter(struct printer *_pp, int *_error);
301 char *pcaperr(int _error);
303 void process(const struct printer *_pp, char *_file);
304 void rmjob(const char *_printer);
305 void rmremote(const struct printer *_pp);
306 void setprintcap(char *_newfile);
307 int set_qstate(int _action, const char *_lfname);
308 void show(const char *_nfile, const char *_datafile, int _copies);
309 int startdaemon(const struct printer *_pp);
310 char *status_file_name(const struct printer *_pp, char *_buf,
312 void trstat_init(struct printer *_pp, const char *_fname, int _filenum);
313 void trstat_write(struct printer *_pp, tr_sendrecv _sendrecv,
314 size_t _bytecnt, const char *_userid, const char *_otherhost,
315 const char *_orighost);
316 ssize_t writel(int _strm, ...);