diff options
Diffstat (limited to 'usr.sbin/lpr/lpc/cmds.c')
| -rw-r--r-- | usr.sbin/lpr/lpc/cmds.c | 1307 |
1 files changed, 0 insertions, 1307 deletions
diff --git a/usr.sbin/lpr/lpc/cmds.c b/usr.sbin/lpr/lpc/cmds.c deleted file mode 100644 index 06ea4b0..0000000 --- a/usr.sbin/lpr/lpc/cmds.c +++ /dev/null @@ -1,1307 +0,0 @@ -/* - * 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. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. 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. - */ - -#ifndef lint -static const char copyright[] = -"@(#) Copyright (c) 1983, 1993\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif /* not lint */ - -#if 0 -#ifndef lint -static char sccsid[] = "@(#)cmds.c 8.2 (Berkeley) 4/28/95"; -#endif /* not lint */ -#endif - -#include "lp.cdefs.h" /* A cross-platform version of <sys/cdefs.h> */ -__FBSDID("$FreeBSD$"); - -/* - * lpc -- line printer control program -- commands: - */ - -#include <sys/param.h> -#include <sys/time.h> -#include <sys/stat.h> -#include <sys/file.h> - -#include <signal.h> -#include <fcntl.h> -#include <errno.h> -#include <dirent.h> -#include <unistd.h> -#include <stdlib.h> -#include <stdio.h> -#include <ctype.h> -#include <string.h> -#include "lp.h" -#include "lp.local.h" -#include "lpc.h" -#include "extern.h" -#include "pathnames.h" - -/* - * Return values from kill_qtask(). - */ -#define KQT_LFERROR -2 -#define KQT_KILLFAIL -1 -#define KQT_NODAEMON 0 -#define KQT_KILLOK 1 - -static char *args2line(int argc, char **argv); -static int doarg(char *_job); -static int doselect(struct dirent *_d); -static int kill_qtask(const char *lf); -static int sortq(const void *_a, const void *_b); -static int touch(struct jobqueue *_jq); -static void unlinkf(char *_name); -static void upstat(struct printer *_pp, const char *_msg, int _notify); -static void wrapup_clean(int _laststatus); - -/* - * generic framework for commands which operate on all or a specified - * set of printers - */ -enum qsel_val { /* how a given ptr was selected */ - QSEL_UNKNOWN = -1, /* ... not selected yet */ - QSEL_BYNAME = 0, /* ... user specifed it by name */ - QSEL_ALL = 1 /* ... user wants "all" printers */ - /* (with more to come) */ -}; - -static enum qsel_val generic_qselect; /* indicates how ptr was selected */ -static int generic_initerr; /* result of initrtn processing */ -static char *generic_cmdname; -static char *generic_msg; /* if a -msg was specified */ -static char *generic_nullarg; -static void (*generic_wrapup)(int _last_status); /* perform rtn wrap-up */ - -void -generic(void (*specificrtn)(struct printer *_pp), int cmdopts, - void (*initrtn)(int _argc, char *_argv[]), int argc, char *argv[]) -{ - int cmdstatus, more, targc; - struct printer myprinter, *pp; - char **margv, **targv; - - if (argc == 1) { - /* - * Usage needs a special case for 'down': The user must - * either include `-msg', or only the first parameter - * that they give will be processed as a printer name. - */ - printf("usage: %s {all | printer ...}", argv[0]); - if (strcmp(argv[0], "down") == 0) { - printf(" -msg [<text> ...]\n"); - printf(" or: down {all | printer} [<text> ...]"); - } else if (cmdopts & LPC_MSGOPT) - printf(" [-msg <text> ...]"); - printf("\n"); - return; - } - - /* The first argument is the command name. */ - generic_cmdname = *argv++; - argc--; - - /* - * The initialization routine for a command might set a generic - * "wrapup" routine, which should be called after processing all - * the printers in the command. This might print summary info. - * - * Note that the initialization routine may also parse (and - * nullify) some of the parameters given on the command, leaving - * only the parameters which have to do with printer names. - */ - pp = &myprinter; - generic_wrapup = NULL; - generic_qselect = QSEL_UNKNOWN; - cmdstatus = 0; - /* this just needs to be a distinct value of type 'char *' */ - if (generic_nullarg == NULL) - generic_nullarg = strdup(""); - - /* - * Some commands accept a -msg argument, which indicates that - * all remaining arguments should be combined into a string. - */ - generic_msg = NULL; - if (cmdopts & LPC_MSGOPT) { - targc = argc; - targv = argv; - for (; targc > 0; targc--, targv++) { - if (strcmp(*targv, "-msg") == 0) { - argc -= targc; - generic_msg = args2line(targc - 1, targv + 1); - break; - } - } - } - - /* call initialization routine, if there is one for this cmd */ - if (initrtn != NULL) { - generic_initerr = 0; - (*initrtn)(argc, argv); - if (generic_initerr) - return; - /* - * The initrtn may have null'ed out some of the parameters. - * Compact the parameter list to remove those nulls, and - * correct the arg-count. - */ - targc = argc; - targv = argv; - margv = argv; - argc = 0; - for (; targc > 0; targc--, targv++) { - if (*targv != generic_nullarg) { - if (targv != margv) - *margv = *targv; - margv++; - argc++; - } - } - } - - if (argc == 1 && strcmp(*argv, "all") == 0) { - generic_qselect = QSEL_ALL; - more = firstprinter(pp, &cmdstatus); - if (cmdstatus) - goto looperr; - while (more) { - (*specificrtn)(pp); - do { - more = nextprinter(pp, &cmdstatus); -looperr: - switch (cmdstatus) { - case PCAPERR_TCOPEN: - printf("warning: %s: unresolved " - "tc= reference(s) ", - pp->printer); - case PCAPERR_SUCCESS: - break; - default: - fatal(pp, "%s", pcaperr(cmdstatus)); - } - } while (more && cmdstatus); - } - goto wrapup; - } - - generic_qselect = QSEL_BYNAME; /* specifically-named ptrs */ - for (; argc > 0; argc--, argv++) { - init_printer(pp); - cmdstatus = getprintcap(*argv, pp); - switch (cmdstatus) { - default: - fatal(pp, "%s", pcaperr(cmdstatus)); - case PCAPERR_NOTFOUND: - printf("unknown printer %s\n", *argv); - continue; - case PCAPERR_TCOPEN: - printf("warning: %s: unresolved tc= reference(s)\n", - *argv); - break; - case PCAPERR_SUCCESS: - break; - } - (*specificrtn)(pp); - } - -wrapup: - if (generic_wrapup) { - (*generic_wrapup)(cmdstatus); - } - free_printer(pp); - if (generic_msg) - free(generic_msg); -} - -/* - * Convert an argv-array of character strings into a single string. - */ -static char * -args2line(int argc, char **argv) -{ - char *cp1, *cend; - const char *cp2; - char buf[1024]; - - if (argc <= 0) - return strdup("\n"); - - cp1 = buf; - cend = buf + sizeof(buf) - 1; /* save room for '\0' */ - while (--argc >= 0) { - cp2 = *argv++; - while ((cp1 < cend) && (*cp1++ = *cp2++)) - ; - cp1[-1] = ' '; - } - cp1[-1] = '\n'; - *cp1 = '\0'; - return strdup(buf); -} - -/* - * Kill the current daemon, to stop printing of the active job. - */ -static int -kill_qtask(const char *lf) -{ - FILE *fp; - pid_t pid; - int errsav, killres, lockres, res; - - seteuid(euid); - fp = fopen(lf, "r"); - errsav = errno; - seteuid(uid); - res = KQT_NODAEMON; - if (fp == NULL) { - /* - * If there is no lock file, then there is no daemon to - * kill. Any other error return means there is some - * kind of problem with the lock file. - */ - if (errsav != ENOENT) - res = KQT_LFERROR; - goto killdone; - } - - /* If the lock file is empty, then there is no daemon to kill */ - if (getline(fp) == 0) - goto killdone; - - /* - * If the file can be locked without blocking, then there - * no daemon to kill, or we should not try to kill it. - * - * XXX - not sure I understand the reasoning behind this... - */ - lockres = flock(fileno(fp), LOCK_SH|LOCK_NB); - (void) fclose(fp); - if (lockres == 0) - goto killdone; - - pid = atoi(line); - if (pid < 0) { - /* - * If we got a negative pid, then the contents of the - * lock file is not valid. - */ - res = KQT_LFERROR; - goto killdone; - } - - seteuid(uid); - killres = kill(pid, SIGTERM); - errsav = errno; - seteuid(uid); - if (killres == 0) { - res = KQT_KILLOK; - printf("\tdaemon (pid %d) killed\n", pid); - } else if (errno == ESRCH) { - res = KQT_NODAEMON; - } else { - res = KQT_KILLFAIL; - printf("\tWarning: daemon (pid %d) not killed:\n", pid); - printf("\t %s\n", strerror(errsav)); - } - -killdone: - switch (res) { - case KQT_LFERROR: - printf("\tcannot open lock file: %s\n", - strerror(errsav)); - break; - case KQT_NODAEMON: - printf("\tno daemon to abort\n"); - break; - case KQT_KILLFAIL: - case KQT_KILLOK: - /* These two already printed messages to the user. */ - break; - default: - printf("\t<internal error in kill_qtask>\n"); - break; - } - - return (res); -} - -/* - * Write a message into the status file. - */ -static void -upstat(struct printer *pp, const char *msg, int notifyuser) -{ - int fd; - char statfile[MAXPATHLEN]; - - status_file_name(pp, statfile, sizeof statfile); - umask(0); - seteuid(euid); - fd = open(statfile, O_WRONLY|O_CREAT|O_EXLOCK, STAT_FILE_MODE); - seteuid(uid); - if (fd < 0) { - printf("\tcannot create status file: %s\n", strerror(errno)); - return; - } - (void) ftruncate(fd, 0); - if (msg == (char *)NULL) - (void) write(fd, "\n", 1); - else - (void) write(fd, msg, strlen(msg)); - (void) close(fd); - if (notifyuser) { - if ((msg == (char *)NULL) || (strcmp(msg, "\n") == 0)) - printf("\tstatus message is now set to nothing.\n"); - else - printf("\tstatus message is now: %s", msg); - } -} - -/* - * kill an existing daemon and disable printing. - */ -void -abort_q(struct printer *pp) -{ - int killres, setres; - char lf[MAXPATHLEN]; - - lock_file_name(pp, lf, sizeof lf); - printf("%s:\n", pp->printer); - - /* - * Turn on the owner execute bit of the lock file to disable printing. - */ - setres = set_qstate(SQS_STOPP, lf); - - /* - * If set_qstate found that there already was a lock file, then - * call a routine which will read that lock file and kill the - * lpd-process which is listed in that lock file. If the lock - * file did not exist, then either there is no daemon running - * for this queue, or there is one running but *it* could not - * write a lock file (which means we can not determine the - * process id of that lpd-process). - */ - switch (setres) { - case SQS_CHGOK: - case SQS_CHGFAIL: - /* Kill the process */ - killres = kill_qtask(lf); - break; - case SQS_CREOK: - case SQS_CREFAIL: - printf("\tno daemon to abort\n"); - break; - case SQS_STATFAIL: - printf("\tassuming no daemon to abort\n"); - break; - default: - printf("\t<unexpected result (%d) from set_qstate>\n", - setres); - break; - } - - if (setres >= 0) - upstat(pp, "printing disabled\n", 0); -} - -/* - * "global" variables for all the routines related to 'clean' and 'tclean' - */ -static time_t cln_now; /* current time */ -static double cln_minage; /* minimum age before file is removed */ -static long cln_sizecnt; /* amount of space freed up */ -static int cln_debug; /* print extra debugging msgs */ -static int cln_filecnt; /* number of files destroyed */ -static int cln_foundcore; /* found a core file! */ -static int cln_queuecnt; /* number of queues checked */ -static int cln_testonly; /* remove-files vs just-print-info */ - -static int -doselect(struct dirent *d) -{ - int c = d->d_name[0]; - - if ((c == 'c' || c == 'd' || c == 'r' || c == 't') && - d->d_name[1] == 'f') - return 1; - if (c == 'c') { - if (!strcmp(d->d_name, "core")) - cln_foundcore = 1; - } - if (c == 'e') { - if (!strncmp(d->d_name, "errs.", 5)) - return 1; - } - return 0; -} - -/* - * Comparison routine that clean_q() uses for scandir. - * - * The purpose of this sort is to have all `df' files end up immediately - * after the matching `cf' file. For files matching `cf', `df', `rf', or - * `tf', it sorts by job number and machine, then by `cf', `df', `rf', or - * `tf', and then by the sequence letter (which is A-Z, or a-z). This - * routine may also see filenames which do not start with `cf', `df', `rf', - * or `tf' (such as `errs.*'), and those are simply sorted by the full - * filename. - * - * XXX - * This assumes that all control files start with `cfA*', and it turns - * out there are a few implementations of lpr which will create `cfB*' - * filenames (they will have datafile names which start with `dfB*'). - */ -static int -sortq(const void *a, const void *b) -{ - const int a_lt_b = -1, a_gt_b = 1, cat_other = 10; - const char *fname_a, *fname_b, *jnum_a, *jnum_b; - int cat_a, cat_b, ch, res, seq_a, seq_b; - - fname_a = (*(const struct dirent * const *)a)->d_name; - fname_b = (*(const struct dirent * const *)b)->d_name; - - /* - * First separate filenames into cagatories. Catagories are - * legitimate `cf', `df', `rf' & `tf' filenames, and "other" - in - * that order. It is critical that the mapping be exactly the - * same for 'a' vs 'b', so define a macro for the job. - * - * [aside: the standard `cf' file has the jobnumber start in - * position 4, but some implementations have that as an extra - * file-sequence letter, and start the job number in position 5.] - */ -#define MAP_TO_CAT(fname_X,cat_X,jnum_X,seq_X) do { \ - cat_X = cat_other; \ - ch = *(fname_X + 2); \ - jnum_X = fname_X + 3; \ - seq_X = 0; \ - if ((*(fname_X + 1) == 'f') && (isalpha(ch))) { \ - seq_X = ch; \ - if (*fname_X == 'c') \ - cat_X = 1; \ - else if (*fname_X == 'd') \ - cat_X = 2; \ - else if (*fname_X == 'r') \ - cat_X = 3; \ - else if (*fname_X == 't') \ - cat_X = 4; \ - if (cat_X != cat_other) { \ - ch = *jnum_X; \ - if (!isdigit(ch)) { \ - if (isalpha(ch)) { \ - jnum_X++; \ - ch = *jnum_X; \ - seq_X = (seq_X << 8) + ch; \ - } \ - if (!isdigit(ch)) \ - cat_X = cat_other; \ - } \ - } \ - } \ -} while (0) - - MAP_TO_CAT(fname_a, cat_a, jnum_a, seq_a); - MAP_TO_CAT(fname_b, cat_b, jnum_b, seq_b); - -#undef MAP_TO_CAT - - /* First handle all cases which have "other" files */ - if ((cat_a >= cat_other) || (cat_b >= cat_other)) { - /* for two "other" files, just compare the full name */ - if (cat_a == cat_b) - res = strcmp(fname_a, fname_b); - else if (cat_a < cat_b) - res = a_lt_b; - else - res = a_gt_b; - goto have_res; - } - - /* - * At this point, we know both files are legitimate `cf', `df', `rf', - * or `tf' files. Compare them by job-number and machine name. - */ - res = strcmp(jnum_a, jnum_b); - if (res != 0) - goto have_res; - - /* - * We have two files which belong to the same job. Sort based - * on the catagory of file (`c' before `d', etc). - */ - if (cat_a < cat_b) { - res = a_lt_b; - goto have_res; - } else if (cat_a > cat_b) { - res = a_gt_b; - goto have_res; - } - - /* - * Two files in the same catagory for a single job. Sort based - * on the sequence letter(s). (usually `A' thru `Z', etc). - */ - if (seq_a < seq_b) { - res = a_lt_b; - goto have_res; - } else if (seq_a > seq_b) { - res = a_gt_b; - goto have_res; - } - - /* - * Given that the filenames in a directory are unique, this SHOULD - * never happen (unless there are logic errors in this routine). - * But if it does happen, we must return "is equal" or the caller - * might see inconsistent results in the sorting order, and that - * can trigger other problems. - */ - printf("\t*** Error in sortq: %s == %s !\n", fname_a, fname_b); - printf("\t*** cat %d == %d ; seq = %d %d\n", cat_a, cat_b, - seq_a, seq_b); - res = 0; - -have_res: - return res; -} - -/* - * Remove all spool files and temporaries from the spooling area. - * Or, perhaps: - * Remove incomplete jobs from spooling area. - */ - -void -clean_gi(int argc, char *argv[]) -{ - - /* init some fields before 'clean' is called for each queue */ - cln_queuecnt = 0; - cln_now = time(NULL); - cln_minage = 3600.0; /* only delete files >1h old */ - cln_filecnt = 0; - cln_sizecnt = 0; - cln_debug = 0; - cln_testonly = 0; - generic_wrapup = &wrapup_clean; - - /* see if there are any options specified before the ptr list */ - for (; argc > 0; argc--, argv++) { - if (**argv != '-') - break; - if (strcmp(*argv, "-d") == 0) { - /* just an example of an option... */ - cln_debug++; - *argv = generic_nullarg; /* "erase" it */ - } else { - printf("Invalid option '%s'\n", *argv); - generic_initerr = 1; - } - } - - return; -} - -void -tclean_gi(int argc, char *argv[]) -{ - - /* only difference between 'clean' and 'tclean' is one value */ - /* (...and the fact that 'clean' is priv and 'tclean' is not) */ - clean_gi(argc, argv); - cln_testonly = 1; - - return; -} - -void -clean_q(struct printer *pp) -{ - char *cp, *cp1, *lp; - struct dirent **queue; - size_t linerem; - int didhead, i, n, nitems, rmcp; - - cln_queuecnt++; - - didhead = 0; - if (generic_qselect == QSEL_BYNAME) { - printf("%s:\n", pp->printer); - didhead = 1; - } - - lp = line; - cp = pp->spool_dir; - while (lp < &line[sizeof(line) - 1]) { - if ((*lp++ = *cp++) == 0) - break; - } - lp[-1] = '/'; - linerem = sizeof(line) - (lp - line); - - cln_foundcore = 0; - seteuid(euid); - nitems = scandir(pp->spool_dir, &queue, doselect, sortq); - seteuid(uid); - if (nitems < 0) { - if (!didhead) { - printf("%s:\n", pp->printer); - didhead = 1; - } - printf("\tcannot examine spool directory\n"); - return; - } - if (cln_foundcore) { - if (!didhead) { - printf("%s:\n", pp->printer); - didhead = 1; - } - printf("\t** found a core file in %s !\n", pp->spool_dir); - } - if (nitems == 0) - return; - if (!didhead) - printf("%s:\n", pp->printer); - if (cln_debug) { - printf("\t** ----- Sorted list of files being checked:\n"); - i = 0; - do { - cp = queue[i]->d_name; - printf("\t** [%3d] = %s\n", i, cp); - } while (++i < nitems); - printf("\t** ----- end of sorted list\n"); - } - i = 0; - do { - cp = queue[i]->d_name; - rmcp = 0; - if (*cp == 'c') { - /* - * A control file. Look for matching data-files. - */ - /* XXX - * Note the logic here assumes that the hostname - * part of cf-filenames match the hostname part - * in df-filenames, and that is not necessarily - * true (eg: for multi-homed hosts). This needs - * some further thought... - */ - n = 0; - while (i + 1 < nitems) { - cp1 = queue[i + 1]->d_name; - if (*cp1 != 'd' || strcmp(cp + 3, cp1 + 3)) - break; - i++; - n++; - } - if (n == 0) { - rmcp = 1; - } - } else if (*cp == 'e') { - /* - * Must be an errrs or email temp file. - */ - rmcp = 1; - } else { - /* - * Must be a df with no cf (otherwise, it would have - * been skipped above) or an rf or tf file (which can - * always be removed if it is old enough). - */ - rmcp = 1; - } - if (rmcp) { - if (strlen(cp) >= linerem) { - printf("\t** internal error: 'line' overflow!\n"); - printf("\t** spooldir = %s\n", pp->spool_dir); - printf("\t** cp = %s\n", cp); - return; - } - strlcpy(lp, cp, linerem); - unlinkf(line); - } - } while (++i < nitems); -} - -static void -wrapup_clean(int laststatus __unused) -{ - - printf("Checked %d queues, and ", cln_queuecnt); - if (cln_filecnt < 1) { - printf("no cruft was found\n"); - return; - } - if (cln_testonly) { - printf("would have "); - } - printf("removed %d files (%ld bytes).\n", cln_filecnt, cln_sizecnt); -} - -static void -unlinkf(char *name) -{ - struct stat stbuf; - double agemod, agestat; - int res; - char linkbuf[BUFSIZ]; - - /* - * We have to use lstat() instead of stat(), in case this is a df* - * "file" which is really a symlink due to 'lpr -s' processing. In - * that case, we need to check the last-mod time of the symlink, and - * not the file that the symlink is pointed at. - */ - seteuid(euid); - res = lstat(name, &stbuf); - seteuid(uid); - if (res < 0) { - printf("\terror return from stat(%s):\n", name); - printf("\t %s\n", strerror(errno)); - return; - } - - agemod = difftime(cln_now, stbuf.st_mtime); - agestat = difftime(cln_now, stbuf.st_ctime); - if (cln_debug > 1) { - /* this debugging-aid probably is not needed any more... */ - printf("\t\t modify age=%g secs, stat age=%g secs\n", - agemod, agestat); - } - if ((agemod <= cln_minage) && (agestat <= cln_minage)) - return; - - /* - * if this file is a symlink, then find out the target of the - * symlink before unlink-ing the file itself - */ - if (S_ISLNK(stbuf.st_mode)) { - seteuid(euid); - res = readlink(name, linkbuf, sizeof(linkbuf)); - seteuid(uid); - if (res < 0) { - printf("\terror return from readlink(%s):\n", name); - printf("\t %s\n", strerror(errno)); - return; - } - if (res == sizeof(linkbuf)) - res--; - linkbuf[res] = '\0'; - } - - cln_filecnt++; - cln_sizecnt += stbuf.st_size; - - if (cln_testonly) { - printf("\twould remove %s\n", name); - if (S_ISLNK(stbuf.st_mode)) { - printf("\t (which is a symlink to %s)\n", linkbuf); - } - } else { - seteuid(euid); - res = unlink(name); - seteuid(uid); - if (res < 0) - printf("\tcannot remove %s (!)\n", name); - else - printf("\tremoved %s\n", name); - /* XXX - * Note that for a df* file, this code should also check to see - * if it is a symlink to some other file, and if the original - * lpr command included '-r' ("remove file"). Of course, this - * code would not be removing the df* file unless there was no - * matching cf* file, and without the cf* file it is currently - * impossible to determine if '-r' had been specified... - * - * As a result of this quandry, we may be leaving behind a - * user's file that was supposed to have been removed after - * being printed. This may effect services such as CAP or - * samba, if they were configured to use 'lpr -r', and if - * datafiles are not being properly removed. - */ - if (S_ISLNK(stbuf.st_mode)) { - printf("\t (which was a symlink to %s)\n", linkbuf); - } - } -} - -/* - * Enable queuing to the printer (allow lpr to add new jobs to the queue). - */ -void -enable_q(struct printer *pp) -{ - int setres; - char lf[MAXPATHLEN]; - - lock_file_name(pp, lf, sizeof lf); - printf("%s:\n", pp->printer); - - setres = set_qstate(SQS_ENABLEQ, lf); -} - -/* - * Disable queuing. - */ -void -disable_q(struct printer *pp) -{ - int setres; - char lf[MAXPATHLEN]; - - lock_file_name(pp, lf, sizeof lf); - printf("%s:\n", pp->printer); - - setres = set_qstate(SQS_DISABLEQ, lf); -} - -/* - * Disable queuing and printing and put a message into the status file - * (reason for being down). If the user specified `-msg', then use - * everything after that as the message for the status file. If the - * user did NOT specify `-msg', then the command should take the first - * parameter as the printer name, and all remaining parameters as the - * message for the status file. (This is to be compatible with the - * original definition of 'down', which was implemented long before - * `-msg' was around). - */ -void -down_gi(int argc, char *argv[]) -{ - - /* If `-msg' was specified, then this routine has nothing to do. */ - if (generic_msg != NULL) - return; - - /* - * If the user only gave one parameter, then use a default msg. - * (if argc == 1 at this point, then *argv == name of printer). - */ - if (argc == 1) { - generic_msg = strdup("printing disabled\n"); - return; - } - - /* - * The user specified multiple parameters, and did not specify - * `-msg'. Build a message from all the parameters after the - * first one (and nullify those parameters so generic-processing - * will not process them as printer-queue names). - */ - argc--; - argv++; - generic_msg = args2line(argc, argv); - for (; argc > 0; argc--, argv++) - *argv = generic_nullarg; /* "erase" it */ -} - -void -down_q(struct printer *pp) -{ - int setres; - char lf[MAXPATHLEN]; - - lock_file_name(pp, lf, sizeof lf); - printf("%s:\n", pp->printer); - - setres = set_qstate(SQS_DISABLEQ+SQS_STOPP, lf); - if (setres >= 0) - upstat(pp, generic_msg, 1); -} - -/* - * Exit lpc - */ -void -quit(int argc __unused, char *argv[] __unused) -{ - exit(0); -} - -/* - * Kill and restart the daemon. - */ -void -restart_q(struct printer *pp) -{ - int killres, setres, startok; - char lf[MAXPATHLEN]; - - lock_file_name(pp, lf, sizeof lf); - printf("%s:\n", pp->printer); - - killres = kill_qtask(lf); - - /* - * XXX - if the kill worked, we should probably sleep for - * a second or so before trying to restart the queue. - */ - - /* make sure the queue is set to print jobs */ - setres = set_qstate(SQS_STARTP, lf); - - seteuid(euid); - startok = startdaemon(pp); - seteuid(uid); - if (!startok) - printf("\tcouldn't restart daemon\n"); - else - printf("\tdaemon restarted\n"); -} - -/* - * Set the status message of each queue listed. Requires a "-msg" - * parameter to indicate the end of the queue list and start of msg text. - */ -void -setstatus_gi(int argc __unused, char *argv[] __unused) -{ - - if (generic_msg == NULL) { - printf("You must specify '-msg' before the text of the new status message.\n"); - generic_initerr = 1; - } -} - -void -setstatus_q(struct printer *pp) -{ - char lf[MAXPATHLEN]; - - lock_file_name(pp, lf, sizeof lf); - printf("%s:\n", pp->printer); - - upstat(pp, generic_msg, 1); -} - -/* - * Enable printing on the specified printer and startup the daemon. - */ -void -start_q(struct printer *pp) -{ - int setres, startok; - char lf[MAXPATHLEN]; - - lock_file_name(pp, lf, sizeof lf); - printf("%s:\n", pp->printer); - - setres = set_qstate(SQS_STARTP, lf); - - seteuid(euid); - startok = startdaemon(pp); - seteuid(uid); - if (!startok) - printf("\tcouldn't start daemon\n"); - else - printf("\tdaemon started\n"); - seteuid(uid); -} - -/* - * Print the status of the printer queue. - */ -void -status(struct printer *pp) -{ - struct stat stbuf; - register int fd, i; - register struct dirent *dp; - DIR *dirp; - char file[MAXPATHLEN]; - - printf("%s:\n", pp->printer); - lock_file_name(pp, file, sizeof file); - if (stat(file, &stbuf) >= 0) { - printf("\tqueuing is %s\n", - ((stbuf.st_mode & LFM_QUEUE_DIS) ? "disabled" - : "enabled")); - printf("\tprinting is %s\n", - ((stbuf.st_mode & LFM_PRINT_DIS) ? "disabled" - : "enabled")); - } else { - printf("\tqueuing is enabled\n"); - printf("\tprinting is enabled\n"); - } - if ((dirp = opendir(pp->spool_dir)) == NULL) { - printf("\tcannot examine spool directory\n"); - return; - } - i = 0; - while ((dp = readdir(dirp)) != NULL) { - if (*dp->d_name == 'c' && dp->d_name[1] == 'f') - i++; - } - closedir(dirp); - if (i == 0) - printf("\tno entries in spool area\n"); - else if (i == 1) - printf("\t1 entry in spool area\n"); - else - printf("\t%d entries in spool area\n", i); - fd = open(file, O_RDONLY); - if (fd < 0 || flock(fd, LOCK_SH|LOCK_NB) == 0) { - (void) close(fd); /* unlocks as well */ - printf("\tprinter idle\n"); - return; - } - (void) close(fd); - /* print out the contents of the status file, if it exists */ - status_file_name(pp, file, sizeof file); - fd = open(file, O_RDONLY|O_SHLOCK); - if (fd >= 0) { - (void) fstat(fd, &stbuf); - if (stbuf.st_size > 0) { - putchar('\t'); - while ((i = read(fd, line, sizeof(line))) > 0) - (void) fwrite(line, 1, i, stdout); - } - (void) close(fd); /* unlocks as well */ - } -} - -/* - * Stop the specified daemon after completing the current job and disable - * printing. - */ -void -stop_q(struct printer *pp) -{ - int setres; - char lf[MAXPATHLEN]; - - lock_file_name(pp, lf, sizeof lf); - printf("%s:\n", pp->printer); - - setres = set_qstate(SQS_STOPP, lf); - - if (setres >= 0) - upstat(pp, "printing disabled\n", 0); -} - -struct jobqueue **queue; -int nitems; -time_t mtime; - -/* - * Put the specified jobs at the top of printer queue. - */ -void -topq(int argc, char *argv[]) -{ - register int i; - struct stat stbuf; - int cmdstatus, changed; - struct printer myprinter, *pp = &myprinter; - - if (argc < 3) { - printf("usage: topq printer [jobnum ...] [user ...]\n"); - return; - } - - --argc; - ++argv; - init_printer(pp); - cmdstatus = getprintcap(*argv, pp); - switch(cmdstatus) { - default: - fatal(pp, "%s", pcaperr(cmdstatus)); - case PCAPERR_NOTFOUND: - printf("unknown printer %s\n", *argv); - return; - case PCAPERR_TCOPEN: - printf("warning: %s: unresolved tc= reference(s)", *argv); - break; - case PCAPERR_SUCCESS: - break; - } - printf("%s:\n", pp->printer); - - seteuid(euid); - if (chdir(pp->spool_dir) < 0) { - printf("\tcannot chdir to %s\n", pp->spool_dir); - goto out; - } - seteuid(uid); - nitems = getq(pp, &queue); - if (nitems == 0) - return; - changed = 0; - mtime = queue[0]->job_time; - for (i = argc; --i; ) { - if (doarg(argv[i]) == 0) { - printf("\tjob %s is not in the queue\n", argv[i]); - continue; - } else - changed++; - } - for (i = 0; i < nitems; i++) - free(queue[i]); - free(queue); - if (!changed) { - printf("\tqueue order unchanged\n"); - return; - } - /* - * Turn on the public execute bit of the lock file to - * get lpd to rebuild the queue after the current job. - */ - seteuid(euid); - if (changed && stat(pp->lock_file, &stbuf) >= 0) - (void) chmod(pp->lock_file, stbuf.st_mode | LFM_RESET_QUE); - -out: - seteuid(uid); -} - -/* - * Reposition the job by changing the modification time of - * the control file. - */ -static int -touch(struct jobqueue *jq) -{ - struct timeval tvp[2]; - int ret; - - tvp[0].tv_sec = tvp[1].tv_sec = --mtime; - tvp[0].tv_usec = tvp[1].tv_usec = 0; - seteuid(euid); - ret = utimes(jq->job_cfname, tvp); - seteuid(uid); - return (ret); -} - -/* - * Checks if specified job name is in the printer's queue. - * Returns: negative (-1) if argument name is not in the queue. - */ -static int -doarg(char *job) -{ - register struct jobqueue **qq; - register int jobnum, n; - register char *cp, *machine; - int cnt = 0; - FILE *fp; - - /* - * Look for a job item consisting of system name, colon, number - * (example: ucbarpa:114) - */ - if ((cp = strchr(job, ':')) != NULL) { - machine = job; - *cp++ = '\0'; - job = cp; - } else - machine = NULL; - - /* - * Check for job specified by number (example: 112 or 235ucbarpa). - */ - if (isdigit(*job)) { - jobnum = 0; - do - jobnum = jobnum * 10 + (*job++ - '0'); - while (isdigit(*job)); - for (qq = queue + nitems; --qq >= queue; ) { - n = 0; - for (cp = (*qq)->job_cfname+3; isdigit(*cp); ) - n = n * 10 + (*cp++ - '0'); - if (jobnum != n) - continue; - if (*job && strcmp(job, cp) != 0) - continue; - if (machine != NULL && strcmp(machine, cp) != 0) - continue; - if (touch(*qq) == 0) { - printf("\tmoved %s\n", (*qq)->job_cfname); - cnt++; - } - } - return(cnt); - } - /* - * Process item consisting of owner's name (example: henry). - */ - for (qq = queue + nitems; --qq >= queue; ) { - seteuid(euid); - fp = fopen((*qq)->job_cfname, "r"); - seteuid(uid); - if (fp == NULL) - continue; - while (getline(fp) > 0) - if (line[0] == 'P') - break; - (void) fclose(fp); - if (line[0] != 'P' || strcmp(job, line+1) != 0) - continue; - if (touch(*qq) == 0) { - printf("\tmoved %s\n", (*qq)->job_cfname); - cnt++; - } - } - return(cnt); -} - -/* - * Enable both queuing & printing, and start printer (undo `down'). - */ -void -up_q(struct printer *pp) -{ - int setres, startok; - char lf[MAXPATHLEN]; - - lock_file_name(pp, lf, sizeof lf); - printf("%s:\n", pp->printer); - - setres = set_qstate(SQS_ENABLEQ+SQS_STARTP, lf); - - seteuid(euid); - startok = startdaemon(pp); - seteuid(uid); - if (!startok) - printf("\tcouldn't start daemon\n"); - else - printf("\tdaemon started\n"); -} |
