/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1983, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/queue.h> #include <time.h> #include <netdb.h> /* * All this information used to be in global static variables shared * mysteriously by various parts of the lpr/lpd suite. * This structure attempts to centralize all these declarations in the * hope that they can later be made more dynamic. */ enum lpd_filters { LPF_CIFPLOT, LPF_DVI, LPF_GRAPH, LPF_INPUT, LPF_DITROFF, LPF_OUTPUT, LPF_FORTRAN, LPF_TROFF, LPF_RASTER, LPF_COUNT }; /* NB: there is a table in common.c giving the mapping from capability names */ struct printer { char *printer; /* printer name */ int remote; /* true if RM points to a remote host */ int rp_matches_local; /* true if rp has same name as us */ int tof; /* true if we are at top-of-form */ /* ------------------------------------------------------ */ char *acct_file; /* AF: accounting file */ long baud_rate; /* BR: baud rate if lp is a tty */ char *filters[LPF_COUNT]; /* CF, DF, GF, IF, NF, OF, RF, TF, VF */ long conn_timeout; /* CT: TCP connection timeout */ long daemon_user; /* DU: daemon user id -- XXX belongs ???? */ char *form_feed; /* FF: form feed */ long header_last; /* HL: print header last */ char *log_file; /* LF: log file */ char *lock_file; /* LO: lock file */ char *lp; /* LP: device name or network address */ long max_copies; /* MC: maximum number of copies allowed */ long max_blocks; /* MX: maximum number of blocks to copy */ long price100; /* PC: price per 100 units of output */ long page_length; /* PL: page length */ long page_width; /* PW: page width */ long page_pwidth; /* PX: page width in pixels */ long page_plength; /* PY: page length in pixels */ long resend_copies; /* RC: resend copies to remote host */ char *restrict_grp; /* RG: restricted group */ char *remote_host; /* RM: remote machine name */ char *remote_queue; /* RP: remote printer name */ long restricted; /* RS: restricted to those with local accts */ long rw; /* RW: open LP for reading and writing */ long short_banner; /* SB: short banner */ long no_copies; /* SC: suppress multiple copies */ char *spool_dir; /* SD: spool directory */ long no_formfeed; /* SF: suppress FF on each print job */ long no_header; /* SH: suppress header page */ char *stat_recv; /* SR: statistics file, receiving jobs */ char *stat_send; /* SS: statistics file, sending jobs */ char *status_file; /* ST: status file name */ char *trailer; /* TR: trailer string send when Q empties */ char *mode_set; /* MS: mode set, a la stty */ /* variables used by trstat*() to keep statistics on file transfers */ #define JOBNUM_SIZE 8 char jobnum[JOBNUM_SIZE]; long jobdfnum; /* current datafile number within job */ struct timespec tr_start, tr_done; #define TIMESTR_SIZE 40 /* holds result from LPD_TIMESTAMP_PATTERN */ char tr_timestr[TIMESTR_SIZE]; #define DIFFTIME_TS(endTS,startTS) \ ((double)(endTS.tv_sec - startTS.tv_sec) \ + (endTS.tv_nsec - startTS.tv_nsec) * 1.0e-9) }; /* * Lists of user names and job numbers, for the benefit of the structs * defined below. We use TAILQs so that requests don't get mysteriously * reversed in process. */ struct req_user { TAILQ_ENTRY(req_user) ru_link; /* macro glue */ char ru_uname[1]; /* name of user */ }; TAILQ_HEAD(req_user_head, req_user); struct req_file { TAILQ_ENTRY(req_file) rf_link; /* macro glue */ char rf_type; /* type (lowercase cf file letter) of file */ char *rf_prettyname; /* user-visible name of file */ char rf_fname[1]; /* name of file */ }; TAILQ_HEAD(req_file_head, req_file); struct req_jobid { TAILQ_ENTRY(req_jobid) rj_link; /* macro glue */ int rj_job; /* job number */ }; TAILQ_HEAD(req_jobid_head, req_jobid); /* * Encapsulate all the information relevant to a request in the * lpr/lpd protocol. */ enum req_type { REQ_START, REQ_RECVJOB, REQ_LIST, REQ_DELETE }; struct request { enum req_type type; /* what sort of request is this? */ struct printer prtr; /* which printer is it for? */ int remote; /* did request arrive over network? */ char *logname; /* login name of requesting user */ char *authname; /* authenticated identity of requesting user */ char *prettyname; /* ``pretty'' name of requesting user */ int privileged; /* was the request from a privileged user? */ void *authinfo; /* authentication information */ int authentic; /* was the request securely authenticated? */ /* Information for queries and deletes... */ int nusers; /* length of following list... */ struct req_user_head users; /* list of users to query/delete */ int njobids; /* length of following list... */ struct req_jobid_head jobids; /* list of jobids to query/delete */ }; /* * Global definitions for the line printer system. */ extern char line[BUFSIZ]; extern const char *progname; /* program name (lpr, lpq, etc) */ /* * 'local_host' is the name of the machine that lpd (lpr, whatever) * is actually running on. * * 'from_host' will point to the 'host' variable when receiving a job * from a user on the same host, or "somewhere else" when receiving a * job from a remote host. If 'from_host != local_host', then 'from_ip' * is the character representation of the IP address of from_host (note * that string could be an IPv6 address). * * Also note that when 'from_host' is not pointing at 'local_host', the * string it is pointing at may be as long as NI_MAXHOST (which is very * likely to be much longer than MAXHOSTNAMELEN). */ extern char local_host[MAXHOSTNAMELEN]; extern const char *from_host; /* client's machine name */ extern const char *from_ip; /* client machine's IP address */ extern int requ[]; /* job number of spool entries */ extern int requests; /* # of spool requests */ extern char *user[]; /* users to process */ extern int users; /* # of users in user array */ extern char *person; /* name of person doing lprm */ extern u_char family; /* address family */ /* * Structure used for building a sorted list of control files. * The job_processed value can be used by callers of getq(), to keep * track of whatever processing they are doing. */ struct jobqueue { time_t job_time; /* last-mod time of cf-file */ int job_matched; /* used by match_jobspec() */ int job_processed; /* set to zero by getq() */ char job_cfname[MAXNAMLEN+1]; /* control file name */ }; /* lpr/lpd generates readable timestamps for logfiles, etc. Have all those * timestamps be in the same format wrt strftime(). This is ISO 8601 format, * with the addition of an easy-readable day-of-the-week field. Note that * '%T' = '%H:%M:%S', and that '%z' is not available on all platforms. */ #define LPD_TIMESTAMP_PATTERN "%Y-%m-%dT%T%z %a" /* * Codes to indicate which statistic records trstat_write should write. */ typedef enum { TR_SENDING, TR_RECVING, TR_PRINTING } tr_sendrecv; /* * Error codes for our mini printcap library. */ #define PCAPERR_TCLOOP (-3) #define PCAPERR_OSERR (-2) #define PCAPERR_NOTFOUND (-1) #define PCAPERR_SUCCESS 0 #define PCAPERR_TCOPEN 1 /* * File modes for the various status files maintained by lpd. */ #define LOCK_FILE_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH) #define LFM_PRINT_DIS (S_IXUSR) #define LFM_QUEUE_DIS (S_IXGRP) #define LFM_RESET_QUE (S_IXOTH) #define STAT_FILE_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH) #define LOG_FILE_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH) #define TEMP_FILE_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH) /* * Bit-flags for set_qstate() actions, followed by the return values. */ #define SQS_DISABLEQ 0x01 /* Disable the queuing of new jobs */ #define SQS_STOPP 0x02 /* Stop the printing of jobs */ #define SQS_ENABLEQ 0x10 /* Enable the queuing of new jobs */ #define SQS_STARTP 0x20 /* Start the printing of jobs */ #define SQS_QCHANGED 0x80 /* The queue has changed (new jobs, etc) */ #define SQS_PARMERR -9 /* Invalid parameters from caller */ #define SQS_CREFAIL -3 /* File did not exist, and create failed */ #define SQS_CHGFAIL -2 /* File exists, but unable to change state */ #define SQS_STATFAIL -1 /* Unable to stat() the lock file */ #define SQS_CHGOK 1 /* File existed, and the state was changed */ #define SQS_CREOK 2 /* File did not exist, but was created OK */ #define SQS_SKIPCREOK 3 /* File did not exist, and there was */ /* no need to create it */ /* * Command codes used in the protocol. */ #define CMD_CHECK_QUE '\1' #define CMD_TAKE_THIS '\2' #define CMD_SHOWQ_SHORT '\3' #define CMD_SHOWQ_LONG '\4' #define CMD_RMJOB '\5' /* * seteuid() macros. */ extern uid_t uid, euid; #define PRIV_START { \ if (seteuid(euid) != 0) err(1, "seteuid failed"); \ } #define PRIV_END { \ if (seteuid(uid) != 0) err(1, "seteuid failed"); \ } #include "lp.cdefs.h" /* A cross-platform version of <sys/cdefs.h> */ __BEGIN_DECLS struct dirent; void blankfill(int _tocol); int calc_jobnum(const char *_cfname, const char **_hostpp); char *checkremote(struct printer *_pp); int chk(char *_file); void closeallfds(int _start); void delay(int _millisec); void displayq(struct printer *_pp, int _format); void dump(const char *_nfile, const char *_datafile, int _copies); void fatal(const struct printer *_pp, const char *_msg, ...) __printflike(2, 3); int firstprinter(struct printer *_pp, int *_error); void free_printer(struct printer *_pp); void free_request(struct request *_rp); int get_line(FILE *_cfp); int getport(const struct printer *_pp, const char *_rhost, int _rport); int getprintcap(const char *_printer, struct printer *_pp); int getq(const struct printer *_pp, struct jobqueue *(*_namelist[])); void header(void); void inform(const struct printer *_pp, char *_cf); void init_printer(struct printer *_pp); void init_request(struct request *_rp); int inlist(char *_uname, char *_cfile); int iscf(const struct dirent *_d); void ldump(const char *_nfile, const char *_datafile, int _copies); void lastprinter(void); int lockchk(struct printer *_pp, char *_slockf); char *lock_file_name(const struct printer *_pp, char *_buf, size_t _len); void lpd_gettime(struct timespec *_tsp, char *_strp, size_t _strsize); int nextprinter(struct printer *_pp, int *_error); const char *pcaperr(int _error); void prank(int _n); void process(const struct printer *_pp, char *_file); void rmjob(const char *_printer); void rmremote(const struct printer *_pp); void setprintcap(char *_newfile); int set_qstate(int _action, const char *_lfname); void show(const char *_nfile, const char *_datafile, int _copies); int startdaemon(const struct printer *_pp); char *status_file_name(const struct printer *_pp, char *_buf, size_t _len); void trstat_init(struct printer *_pp, const char *_fname, int _filenum); void trstat_write(struct printer *_pp, tr_sendrecv _sendrecv, size_t _bytecnt, const char *_userid, const char *_otherhost, const char *_orighost); ssize_t writel(int _strm, ...); __END_DECLS
