usr.sbin/lpr/common_source/lp.h

   1 /*
   2  * Copyright (c) 1983, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      From: @(#)lp.h  8.2 (Berkeley) 4/28/95
  34  * $FreeBSD: src/usr.sbin/lpr/common_source/lp.h,v 1.9.2.12 2002/07/14 23:56:40 gad Exp $
  35  * $DragonFly: src/usr.sbin/lpr/common_source/lp.h,v 1.3 2005/08/08 18:58:56 joerg Exp $
  36  */
  37
  38 #include <sys/queue.h>
  39 #include <limits.h>
  40 #include <time.h>
  41 #include <netdb.h>
  42
  43 /*
  44  * All this information used to be in global static variables shared
  45  * mysteriously by various parts of the lpr/lpd suite.
  46  * This structure attempts to centralize all these declarations in the
  47  * hope that they can later be made more dynamic.
  48  */
  49 enum    lpd_filters { LPF_CIFPLOT, LPF_DVI, LPF_GRAPH, LPF_INPUT,
  50                       LPF_DITROFF, LPF_OUTPUT, LPF_FORTRAN, LPF_TROFF,
  51                       LPF_RASTER, LPF_COUNT };
  52 /* NB: there is a table in common.c giving the mapping from capability names */
  53
  54 struct  printer {
  55         char    *printer;       /* printer name */
  56         int      remote;        /* true if RM points to a remote host */
  57         int      rp_matches_local; /* true if rp has same name as us */
  58         int      tof;           /* true if we are at top-of-form */
  59         /* ------------------------------------------------------ */
  60         char    *acct_file;     /* AF: accounting file */
  61         long     baud_rate;     /* BR: baud rate if lp is a tty */
  62         char    *filters[LPF_COUNT]; /* CF, DF, GF, IF, NF, OF, RF, TF, VF */
  63         long     conn_timeout;  /* CT: TCP connection timeout */
  64         long     daemon_user;   /* DU: daemon user id -- XXX belongs ???? */
  65         char    *form_feed;     /* FF: form feed */
  66         long     header_last;   /* HL: print header last */
  67         char    *log_file;      /* LF: log file */
  68         char    *lock_file;     /* LO: lock file */
  69         char    *lp;            /* LP: device name or network address */
  70         long     max_copies;    /* MC: maximum number of copies allowed */
  71         long     max_blocks;    /* MX: maximum number of blocks to copy */
  72         long     price100;      /* PC: price per 100 units of output */
  73         long     page_length;   /* PL: page length */
  74         long     page_width;    /* PW: page width */
  75         long     page_pwidth;   /* PX: page width in pixels */
  76         long     page_plength;  /* PY: page length in pixels */
  77         long     resend_copies; /* RC: resend copies to remote host */
  78         char    *restrict_grp;  /* RG: restricted group */
  79         char    *remote_host;   /* RM: remote machine name */
  80         char    *remote_queue;  /* RP: remote printer name */
  81         long     restricted;    /* RS: restricted to those with local accts */
  82         long     rw;            /* RW: open LP for reading and writing */
  83         long     short_banner;  /* SB: short banner */
  84         long     no_copies;     /* SC: suppress multiple copies */
  85         char    *spool_dir;     /* SD: spool directory */
  86         long     no_formfeed;   /* SF: suppress FF on each print job */
  87         long     no_header;     /* SH: suppress header page */
  88         char    *stat_recv;     /* SR: statistics file, receiving jobs */
  89         char    *stat_send;     /* SS: statistics file, sending jobs */
  90         char    *status_file;   /* ST: status file name */
  91         char    *trailer;       /* TR: trailer string send when Q empties */
  92         char    *mode_set;      /* MS: mode set, a la stty */
  93
  94         /* variables used by trstat*() to keep statistics on file transfers */
  95 #define JOBNUM_SIZE   8
  96         char     jobnum[JOBNUM_SIZE];
  97         long     jobdfnum;      /* current datafile number within job */
  98         struct timespec tr_start, tr_done;
  99 #define TIMESTR_SIZE 40         /* holds result from LPD_TIMESTAMP_PATTERN */
 100         char     tr_timestr[TIMESTR_SIZE];
 101 #define DIFFTIME_TS(endTS,startTS) \
 102                 ((double)(endTS.tv_sec - startTS.tv_sec) \
 103                 + (endTS.tv_nsec - startTS.tv_nsec) * 1.0e-9)
 104 };
 105
 106 /*
 107  * Lists of user names and job numbers, for the benefit of the structs
 108  * defined below.  We use TAILQs so that requests don't get mysteriously
 109  * reversed in process.
 110  */
 111 struct  req_user {
 112         TAILQ_ENTRY(req_user)   ru_link; /* macro glue */
 113         char    ru_uname[1];    /* name of user */
 114 };
 115 TAILQ_HEAD(req_user_head, req_user);
 116
 117 struct  req_file {
 118         TAILQ_ENTRY(req_file)   rf_link; /* macro glue */
 119         char     rf_type;       /* type (lowercase cf file letter) of file */
 120         char    *rf_prettyname; /* user-visible name of file */
 121         char     rf_fname[1];   /* name of file */
 122 };
 123 TAILQ_HEAD(req_file_head, req_file);
 124
 125 struct  req_jobid {
 126         TAILQ_ENTRY(req_jobid)  rj_link; /* macro glue */
 127         int     rj_job;         /* job number */
 128 };
 129 TAILQ_HEAD(req_jobid_head, req_jobid);
 130
 131 /*
 132  * Encapsulate all the information relevant to a request in the
 133  * lpr/lpd protocol.
 134  */
 135 enum    req_type { REQ_START, REQ_RECVJOB, REQ_LIST, REQ_DELETE };
 136
 137 struct  request {
 138         enum     req_type type; /* what sort of request is this? */
 139         struct   printer prtr;  /* which printer is it for? */
 140         int      remote;        /* did request arrive over network? */
 141         char    *logname;       /* login name of requesting user */
 142         char    *authname;      /* authenticated identity of requesting user */
 143         char    *prettyname;    /* ``pretty'' name of requesting user */
 144         int      privileged;    /* was the request from a privileged user? */
 145         void    *authinfo;      /* authentication information */
 146         int      authentic;     /* was the request securely authenticated? */
 147
 148         /* Information for queries and deletes... */
 149         int      nusers;        /* length of following list... */
 150         struct   req_user_head users; /* list of users to query/delete */
 151         int      njobids;       /* length of following list... */
 152         struct   req_jobid_head jobids; /* list of jobids to query/delete */
 153 };
 154
 155 /*
 156  * Global definitions for the line printer system.
 157  */
 158 extern char     line[BUFSIZ];
 159 extern const char       *progname;      /* program name (lpr, lpq, etc) */
 160
 161     /*
 162      * 'local_host' is the name of the machine that lpd (lpr, whatever)
 163      * is actually running on.
 164      *
 165      * 'from_host' will point to the 'host' variable when receiving a job
 166      * from a user on the same host, or "somewhere else" when receiving a
 167      * job from a remote host.  If 'from_host != local_host', then 'from_ip'
 168      * is the character representation of the IP address of from_host (note
 169      * that string could be an IPv6 address).
 170      *
 171      * Also note that when 'from_host' is not pointing at 'local_host', the
 172      * string it is pointing at may be as long as NI_MAXHOST (which is very
 173      * likely to be much longer than MAXHOSTNAMELEN).
 174      */
 175 extern char      local_host[MAXHOSTNAMELEN];
 176 extern const char       *from_host;     /* client's machine name */
 177 extern const char       *from_ip;       /* client machine's IP address */
 178
 179 extern int      requ[];         /* job number of spool entries */
 180 extern int      requests;       /* # of spool requests */
 181 extern char     *user[];        /* users to process */
 182 extern int      users;          /* # of users in user array */
 183 extern char     *person;        /* name of person doing lprm */
 184 extern u_char   family;         /* address family */
 185
 186 /*
 187  * Structure used for building a sorted list of control files.
 188  * The job_processed value can be used by callers of getq(), to keep
 189  * track of whatever processing they are doing.
 190  */
 191 struct jobqueue {
 192         time_t  job_time;               /* last-mod time of cf-file */
 193         int     job_matched;            /* used by match_jobspec() */
 194         int     job_processed;          /* set to zero by getq() */
 195         char    job_cfname[NAME_MAX+1]; /* control file name */
 196 };
 197
 198 /* lpr/lpd generates readable timestamps for logfiles, etc.  Have all those
 199  * timestamps be in the same format wrt strftime().  This is ISO 8601 format,
 200  * with the addition of an easy-readable day-of-the-week field.  Note that
 201  * '%T' = '%H:%M:%S', and that '%z' is not available on all platforms.
 202  */
 203 #define LPD_TIMESTAMP_PATTERN    "%Y-%m-%dT%T%z %a"
 204
 205 /*
 206  * Codes to indicate which statistic records trstat_write should write.
 207  */
 208 typedef enum { TR_SENDING, TR_RECVING, TR_PRINTING } tr_sendrecv;
 209
 210 /*
 211  * Error codes for our mini printcap library.
 212  */
 213 #define PCAPERR_TCLOOP          (-3)
 214 #define PCAPERR_OSERR           (-2)
 215 #define PCAPERR_NOTFOUND        (-1)
 216 #define PCAPERR_SUCCESS         0
 217 #define PCAPERR_TCOPEN          1
 218
 219 /*
 220  * File modes for the various status files maintained by lpd.
 221  */
 222 #define LOCK_FILE_MODE  (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH)
 223 #define LFM_PRINT_DIS   (S_IXUSR)
 224 #define LFM_QUEUE_DIS   (S_IXGRP)
 225 #define LFM_RESET_QUE   (S_IXOTH)
 226
 227 #define STAT_FILE_MODE  (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH)
 228 #define LOG_FILE_MODE   (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH)
 229 #define TEMP_FILE_MODE  (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH)
 230
 231 /*
 232  * Bit-flags for set_qstate() actions, followed by the return values.
 233  */
 234 #define SQS_DISABLEQ    0x01    /* Disable the queuing of new jobs */
 235 #define SQS_STOPP       0x02    /* Stop the printing of jobs */
 236 #define SQS_ENABLEQ     0x10    /* Enable the queuing of new jobs */
 237 #define SQS_STARTP      0x20    /* Start the printing of jobs */
 238 #define SQS_QCHANGED    0x80    /* The queue has changed (new jobs, etc) */
 239
 240 #define SQS_PARMERR     -9      /* Invalid parameters from caller */
 241 #define SQS_CREFAIL     -3      /* File did not exist, and create failed */
 242 #define SQS_CHGFAIL     -2      /* File exists, but unable to change state */
 243 #define SQS_STATFAIL    -1      /* Unable to stat() the lock file */
 244 #define SQS_CHGOK       1       /* File existed, and the state was changed */
 245 #define SQS_CREOK       2       /* File did not exist, but was created OK */
 246 #define SQS_SKIPCREOK   3       /* File did not exist, and there was */
 247                                 /* no need to create it */
 248
 249 /*
 250  * Command codes used in the protocol.
 251  */
 252 #define CMD_CHECK_QUE   '\1'
 253 #define CMD_TAKE_THIS   '\2'
 254 #define CMD_SHOWQ_SHORT '\3'
 255 #define CMD_SHOWQ_LONG  '\4'
 256 #define CMD_RMJOB       '\5'
 257
 258 #include <sys/cdefs.h>
 259
 260 __BEGIN_DECLS
 261 struct   dirent;
 262
 263 void     blankfill(int _tocol);
 264 char    *checkremote(struct printer *_pp);
 265 int      chk(char *_file);
 266 void     closeallfds(int _start);
 267 void     delay(int _millisec);
 268 void     displayq(struct printer *_pp, int _format);
 269 void     dump(const char *_nfile, const char *_datafile, int _copies);
 270 void     fatal(const struct printer *_pp, const char *_msg, ...)
 271             __printflike(2, 3);
 272 int      firstprinter(struct printer *_pp, int *_error);
 273 void     free_printer(struct printer *_pp);
 274 void     free_request(struct request *_rp);
 275 int      getline(FILE *_cfp);
 276 int      getport(const struct printer *_pp, const char *_rhost, int _rport);
 277 int      getprintcap(const char *_printer, struct printer *_pp);
 278 int      getq(const struct printer *_pp, struct jobqueue *(*_namelist[]));
 279 void     header(void);
 280 void     inform(const struct printer *_pp, char *_cf);
 281 void     init_printer(struct printer *_pp);
 282 void     init_request(struct request *_rp);
 283 int      inlist(char *_uname, char *_cfile);
 284 int      iscf(struct dirent *_d);
 285 int      isowner(char *_owner, char *_file);
 286 void     ldump(const char *_nfile, const char *_datafile, int _copies);
 287 void     lastprinter(void);
 288 int      lockchk(struct printer *_pp, char *_slockf);
 289 char    *lock_file_name(const struct printer *_pp, char *_buf, size_t _len);
 290 void     lpd_gettime(struct timespec *_tsp, char *_strp, size_t _strsize);
 291 int      nextprinter(struct printer *_pp, int *_error);
 292 const
 293 char    *pcaperr(int _error);
 294 void     prank(int _n);
 295 void     process(const struct printer *_pp, char *_file);
 296 void     rmjob(const char *_printer);
 297 void     rmremote(const struct printer *_pp);
 298 void     setprintcap(char *_newfile);
 299 int      set_qstate(int _action, const char *_lfname);
 300 void     show(const char *_nfile, const char *_datafile, int _copies);
 301 int      startdaemon(const struct printer *_pp);
 302 char    *status_file_name(const struct printer *_pp, char *_buf,
 303             size_t _len);
 304 void     trstat_init(struct printer *_pp, const char *_fname, int _filenum);
 305 void     trstat_write(struct printer *_pp, tr_sendrecv _sendrecv,
 306             size_t _bytecnt, const char *_userid, const char *_otherhost,
 307             const char *_orighost);
 308 ssize_t  writel(int _strm, ...);
 309 __END_DECLS