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- /*
- * Copyright (c) 1983 Eric P. Allman
- * Copyright (c) 1988 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.
- */
-
- # include "sendmail.h"
-
- #ifndef lint
- #ifdef QUEUE
- static char sccsid[] = "@(#)queue.c 5.32 (Berkeley) 3/12/91 (with queueing)";
- #else
- static char sccsid[] = "@(#)queue.c 5.32 (Berkeley) 3/12/91 (without queueing)";
- #endif
- #endif /* not lint */
-
- # include <sys/stat.h>
- # include <sys/dir.h>
- # include <sys/file.h>
- # include <signal.h>
- # include <errno.h>
- # include <pwd.h>
-
- # ifdef QUEUE
-
- /*
- ** Work queue.
- */
-
- struct work
- {
- char *w_name; /* name of control file */
- long w_pri; /* priority of message, see below */
- time_t w_ctime; /* creation time of message */
- struct work *w_next; /* next in queue */
- };
-
- typedef struct work WORK;
- extern int la;
-
- WORK *WorkQ; /* queue of things to be done */
- /*
- ** QUEUEUP -- queue a message up for future transmission.
- **
- ** Parameters:
- ** e -- the envelope to queue up.
- ** queueall -- if TRUE, queue all addresses, rather than
- ** just those with the QQUEUEUP flag set.
- ** announce -- if TRUE, tell when you are queueing up.
- **
- ** Returns:
- ** locked FILE* to q file
- **
- ** Side Effects:
- ** The current request are saved in a control file.
- */
-
- FILE *
- queueup(e, queueall, announce)
- register ENVELOPE *e;
- bool queueall;
- bool announce;
- {
- char *qf;
- char buf[MAXLINE], tf[MAXLINE];
- register FILE *tfp;
- register HDR *h;
- register ADDRESS *q;
- MAILER nullmailer;
- int fd, ret;
-
- /*
- ** Create control file.
- */
-
- do {
- strcpy(tf, queuename(e, 't'));
- fd = open(tf, O_CREAT|O_WRONLY|O_EXCL, FileMode);
- if (fd < 0) {
- if ( errno != EEXIST) {
- syserr("queueup: cannot create temp file %s",
- tf);
- return NULL;
- }
- } else {
- if (flock(fd, LOCK_EX|LOCK_NB) < 0) {
- if (errno != EWOULDBLOCK)
- syserr("cannot flock(%s)", tf);
- close(fd);
- fd = -1;
- }
- }
- } while (fd < 0);
-
- tfp = fdopen(fd, "w");
-
- if (tTd(40, 1))
- printf("queueing %s\n", e->e_id);
-
- /*
- ** If there is no data file yet, create one.
- */
-
- if (e->e_df == NULL)
- {
- register FILE *dfp;
- extern putbody();
-
- e->e_df = newstr(queuename(e, 'd'));
- fd = open(e->e_df, O_WRONLY|O_CREAT, FileMode);
- if (fd < 0)
- {
- syserr("queueup: cannot create %s", e->e_df);
- (void) fclose(tfp);
- return NULL;
- }
- dfp = fdopen(fd, "w");
- (*e->e_putbody)(dfp, ProgMailer, e);
- (void) fclose(dfp);
- e->e_putbody = putbody;
- }
-
- /*
- ** Output future work requests.
- ** Priority and creation time should be first, since
- ** they are required by orderq.
- */
-
- /* output message priority */
- fprintf(tfp, "P%ld\n", e->e_msgpriority);
-
- /* output creation time */
- fprintf(tfp, "T%ld\n", e->e_ctime);
-
- /* output name of data file */
- fprintf(tfp, "D%s\n", e->e_df);
-
- /* message from envelope, if it exists */
- if (e->e_message != NULL)
- fprintf(tfp, "M%s\n", e->e_message);
-
- /* output name of sender */
- fprintf(tfp, "S%s\n", e->e_from.q_paddr);
-
- /* output list of recipient addresses */
- for (q = e->e_sendqueue; q != NULL; q = q->q_next)
- {
- if (queueall ? !bitset(QDONTSEND|QSENT, q->q_flags) :
- bitset(QQUEUEUP, q->q_flags))
- {
- char *ctluser, *getctluser();
-
- if ((ctluser = getctluser(q)) != NULL)
- fprintf(tfp, "C%s\n", ctluser);
- fprintf(tfp, "R%s\n", q->q_paddr);
- if (announce)
- {
- e->e_to = q->q_paddr;
- message(Arpa_Info, "queued");
- if (LogLevel > 4)
- logdelivery("queued");
- e->e_to = NULL;
- }
- if (tTd(40, 1))
- {
- printf("queueing ");
- printaddr(q, FALSE);
- }
- }
- }
-
- /* output list of error recipients */
- for (q = e->e_errorqueue; q != NULL; q = q->q_next)
- {
- if (!bitset(QDONTSEND, q->q_flags))
- {
- char *ctluser, *getctluser();
-
- if ((ctluser = getctluser(q)) != NULL)
- fprintf(tfp, "C%s\n", ctluser);
- fprintf(tfp, "E%s\n", q->q_paddr);
- }
- }
-
- /*
- ** Output headers for this message.
- ** Expand macros completely here. Queue run will deal with
- ** everything as absolute headers.
- ** All headers that must be relative to the recipient
- ** can be cracked later.
- ** We set up a "null mailer" -- i.e., a mailer that will have
- ** no effect on the addresses as they are output.
- */
-
- bzero((char *) &nullmailer, sizeof nullmailer);
- nullmailer.m_r_rwset = nullmailer.m_s_rwset = -1;
- nullmailer.m_eol = "\n";
-
- define('g', "\001f", e);
- for (h = e->e_header; h != NULL; h = h->h_link)
- {
- extern bool bitzerop();
-
- /* don't output null headers */
- if (h->h_value == NULL || h->h_value[0] == '\0')
- continue;
-
- /* don't output resent headers on non-resent messages */
- if (bitset(H_RESENT, h->h_flags) && !bitset(EF_RESENT, e->e_flags))
- continue;
-
- /* output this header */
- fprintf(tfp, "H");
-
- /* if conditional, output the set of conditions */
- if (!bitzerop(h->h_mflags) && bitset(H_CHECK|H_ACHECK, h->h_flags))
- {
- int j;
-
- (void) putc('?', tfp);
- for (j = '\0'; j <= '\177'; j++)
- if (bitnset(j, h->h_mflags))
- (void) putc(j, tfp);
- (void) putc('?', tfp);
- }
-
- /* output the header: expand macros, convert addresses */
- if (bitset(H_DEFAULT, h->h_flags))
- {
- (void) expand(h->h_value, buf, &buf[sizeof buf], e);
- fprintf(tfp, "%s: %s\n", h->h_field, buf);
- }
- else if (bitset(H_FROM|H_RCPT, h->h_flags))
- {
- commaize(h, h->h_value, tfp, bitset(EF_OLDSTYLE, e->e_flags),
- &nullmailer);
- }
- else
- fprintf(tfp, "%s: %s\n", h->h_field, h->h_value);
- }
-
- /*
- ** Clean up.
- */
-
- qf = queuename(e, 'q');
- if (rename(tf, qf) < 0)
- syserr("cannot rename(%s, %s), df=%s", tf, qf, e->e_df);
- errno = 0;
-
- # ifdef LOG
- /* save log info */
- if (LogLevel > 15)
- syslog(LOG_DEBUG, "%s: queueup, qf=%s, df=%s\n", e->e_id, qf, e->e_df);
- # endif LOG
- fflush(tfp);
- return tfp;
- }
- /*
- ** RUNQUEUE -- run the jobs in the queue.
- **
- ** Gets the stuff out of the queue in some presumably logical
- ** order and processes them.
- **
- ** Parameters:
- ** forkflag -- TRUE if the queue scanning should be done in
- ** a child process. We double-fork so it is not our
- ** child and we don't have to clean up after it.
- **
- ** Returns:
- ** none.
- **
- ** Side Effects:
- ** runs things in the mail queue.
- */
-
- runqueue(forkflag)
- bool forkflag;
- {
- extern bool shouldqueue();
-
- /*
- ** If no work will ever be selected, don't even bother reading
- ** the queue.
- */
-
- la = getla(); /* get load average */
-
- if (shouldqueue(-100000000L))
- {
- if (Verbose)
- printf("Skipping queue run -- load average too high\n");
-
- if (forkflag)
- return;
- finis();
- }
-
- /*
- ** See if we want to go off and do other useful work.
- */
-
- if (forkflag)
- {
- int pid;
-
- pid = dofork();
- if (pid != 0)
- {
- extern void reapchild();
-
- /* parent -- pick up intermediate zombie */
- #ifndef SIGCHLD
- (void) waitfor(pid);
- #else SIGCHLD
- (void) signal(SIGCHLD, reapchild);
- #endif SIGCHLD
- if (QueueIntvl != 0)
- (void) setevent(QueueIntvl, runqueue, TRUE);
- return;
- }
- /* child -- double fork */
- #ifndef SIGCHLD
- if (fork() != 0)
- exit(EX_OK);
- #else SIGCHLD
- (void) signal(SIGCHLD, SIG_DFL);
- #endif SIGCHLD
- }
-
- setproctitle("running queue: %s", QueueDir);
-
- # ifdef LOG
- if (LogLevel > 11)
- syslog(LOG_DEBUG, "runqueue %s, pid=%d", QueueDir, getpid());
- # endif LOG
-
- /*
- ** Release any resources used by the daemon code.
- */
-
- # ifdef DAEMON
- clrdaemon();
- # endif DAEMON
-
- /*
- ** Make sure the alias database is open.
- */
-
- initaliases(AliasFile, FALSE);
-
- /*
- ** Start making passes through the queue.
- ** First, read and sort the entire queue.
- ** Then, process the work in that order.
- ** But if you take too long, start over.
- */
-
- /* order the existing work requests */
- (void) orderq(FALSE);
-
- /* process them once at a time */
- while (WorkQ != NULL)
- {
- WORK *w = WorkQ;
-
- WorkQ = WorkQ->w_next;
- dowork(w);
- free(w->w_name);
- free((char *) w);
- }
-
- /* exit without the usual cleanup */
- exit(ExitStat);
- }
- /*
- ** ORDERQ -- order the work queue.
- **
- ** Parameters:
- ** doall -- if set, include everything in the queue (even
- ** the jobs that cannot be run because the load
- ** average is too high). Otherwise, exclude those
- ** jobs.
- **
- ** Returns:
- ** The number of request in the queue (not necessarily
- ** the number of requests in WorkQ however).
- **
- ** Side Effects:
- ** Sets WorkQ to the queue of available work, in order.
- */
-
- # define NEED_P 001
- # define NEED_T 002
-
- orderq(doall)
- bool doall;
- {
- register struct direct *d;
- register WORK *w;
- DIR *f;
- register int i;
- WORK wlist[QUEUESIZE+1];
- int wn = -1;
- extern workcmpf();
-
- /* clear out old WorkQ */
- for (w = WorkQ; w != NULL; )
- {
- register WORK *nw = w->w_next;
-
- WorkQ = nw;
- free(w->w_name);
- free((char *) w);
- w = nw;
- }
-
- /* open the queue directory */
- f = opendir(".");
- if (f == NULL)
- {
- syserr("orderq: cannot open \"%s\" as \".\"", QueueDir);
- return (0);
- }
-
- /*
- ** Read the work directory.
- */
-
- while ((d = readdir(f)) != NULL)
- {
- FILE *cf;
- char lbuf[MAXNAME];
-
- /* is this an interesting entry? */
- if (d->d_name[0] != 'q' || d->d_name[1] != 'f')
- continue;
-
- /* yes -- open control file (if not too many files) */
- if (++wn >= QUEUESIZE)
- continue;
- cf = fopen(d->d_name, "r");
- if (cf == NULL)
- {
- /* this may be some random person sending hir msgs */
- /* syserr("orderq: cannot open %s", cbuf); */
- if (tTd(41, 2))
- printf("orderq: cannot open %s (%d)\n",
- d->d_name, errno);
- errno = 0;
- wn--;
- continue;
- }
- w = &wlist[wn];
- w->w_name = newstr(d->d_name);
-
- /* make sure jobs in creation don't clog queue */
- w->w_pri = 0x7fffffff;
- w->w_ctime = 0;
-
- /* extract useful information */
- i = NEED_P | NEED_T;
- while (i != 0 && fgets(lbuf, sizeof lbuf, cf) != NULL)
- {
- extern long atol();
-
- switch (lbuf[0])
- {
- case 'P':
- w->w_pri = atol(&lbuf[1]);
- i &= ~NEED_P;
- break;
-
- case 'T':
- w->w_ctime = atol(&lbuf[1]);
- i &= ~NEED_T;
- break;
- }
- }
- (void) fclose(cf);
-
- if (!doall && shouldqueue(w->w_pri))
- {
- /* don't even bother sorting this job in */
- wn--;
- }
- }
- (void) closedir(f);
- wn++;
-
- /*
- ** Sort the work directory.
- */
-
- qsort((char *) wlist, min(wn, QUEUESIZE), sizeof *wlist, workcmpf);
-
- /*
- ** Convert the work list into canonical form.
- ** Should be turning it into a list of envelopes here perhaps.
- */
-
- WorkQ = NULL;
- for (i = min(wn, QUEUESIZE); --i >= 0; )
- {
- w = (WORK *) xalloc(sizeof *w);
- w->w_name = wlist[i].w_name;
- w->w_pri = wlist[i].w_pri;
- w->w_ctime = wlist[i].w_ctime;
- w->w_next = WorkQ;
- WorkQ = w;
- }
-
- if (tTd(40, 1))
- {
- for (w = WorkQ; w != NULL; w = w->w_next)
- printf("%32s: pri=%ld\n", w->w_name, w->w_pri);
- }
-
- return (wn);
- }
- /*
- ** WORKCMPF -- compare function for ordering work.
- **
- ** Parameters:
- ** a -- the first argument.
- ** b -- the second argument.
- **
- ** Returns:
- ** -1 if a < b
- ** 0 if a == b
- ** +1 if a > b
- **
- ** Side Effects:
- ** none.
- */
-
- workcmpf(a, b)
- register WORK *a;
- register WORK *b;
- {
- long pa = a->w_pri + a->w_ctime;
- long pb = b->w_pri + b->w_ctime;
-
- if (pa == pb)
- return (0);
- else if (pa > pb)
- return (1);
- else
- return (-1);
- }
- /*
- ** DOWORK -- do a work request.
- **
- ** Parameters:
- ** w -- the work request to be satisfied.
- **
- ** Returns:
- ** none.
- **
- ** Side Effects:
- ** The work request is satisfied if possible.
- */
-
- dowork(w)
- register WORK *w;
- {
- register int i;
- extern bool shouldqueue();
-
- if (tTd(40, 1))
- printf("dowork: %s pri %ld\n", w->w_name, w->w_pri);
-
- /*
- ** Ignore jobs that are too expensive for the moment.
- */
-
- if (shouldqueue(w->w_pri))
- {
- if (Verbose)
- printf("\nSkipping %s\n", w->w_name + 2);
- return;
- }
-
- /*
- ** Fork for work.
- */
-
- if (ForkQueueRuns)
- {
- i = fork();
- if (i < 0)
- {
- syserr("dowork: cannot fork");
- return;
- }
- }
- else
- {
- i = 0;
- }
-
- if (i == 0)
- {
- FILE *qflock, *readqf();
- /*
- ** CHILD
- ** Lock the control file to avoid duplicate deliveries.
- ** Then run the file as though we had just read it.
- ** We save an idea of the temporary name so we
- ** can recover on interrupt.
- */
-
- /* set basic modes, etc. */
- (void) alarm(0);
- clearenvelope(CurEnv, FALSE);
- QueueRun = TRUE;
- ErrorMode = EM_MAIL;
- CurEnv->e_id = &w->w_name[2];
- # ifdef LOG
- if (LogLevel > 11)
- syslog(LOG_DEBUG, "%s: dowork, pid=%d", CurEnv->e_id,
- getpid());
- # endif LOG
-
- /* don't use the headers from sendmail.cf... */
- CurEnv->e_header = NULL;
-
- /* read the queue control file */
- /* and lock the control file during processing */
- if ((qflock=readqf(CurEnv, TRUE)) == NULL)
- {
- if (ForkQueueRuns)
- exit(EX_OK);
- else
- return;
- }
-
- CurEnv->e_flags |= EF_INQUEUE;
- eatheader(CurEnv);
-
- /* do the delivery */
- if (!bitset(EF_FATALERRS, CurEnv->e_flags))
- sendall(CurEnv, SM_DELIVER);
-
- /* finish up and exit */
- if (ForkQueueRuns)
- finis();
- else
- dropenvelope(CurEnv);
- fclose(qflock);
- }
- else
- {
- /*
- ** Parent -- pick up results.
- */
-
- errno = 0;
- (void) waitfor(i);
- }
- }
- /*
- ** READQF -- read queue file and set up environment.
- **
- ** Parameters:
- ** e -- the envelope of the job to run.
- ** full -- if set, read in all information. Otherwise just
- ** read in info needed for a queue print.
- **
- ** Returns:
- ** FILE * pointing to flock()ed fd so it can be closed
- ** after the mail is delivered
- **
- ** Side Effects:
- ** cf is read and created as the current job, as though
- ** we had been invoked by argument.
- */
-
- FILE *
- readqf(e, full)
- register ENVELOPE *e;
- bool full;
- {
- char *qf;
- register FILE *qfp;
- char buf[MAXFIELD];
- extern char *fgetfolded();
- extern long atol();
- int gotctluser = 0;
- int fd;
-
- /*
- ** Read and process the file.
- */
-
- qf = queuename(e, 'q');
- qfp = fopen(qf, "r");
- if (qfp == NULL)
- {
- if (errno != ENOENT)
- syserr("readqf: no control file %s", qf);
- return NULL;
- }
-
- if (flock(fileno(qfp), LOCK_EX|LOCK_NB) < 0)
- {
- # ifdef LOG
- /* being processed by another queuer */
- if (Verbose)
- printf("%s: locked\n", CurEnv->e_id);
- # endif LOG
- (void) fclose(qfp);
- return NULL;
- }
-
- /* do basic system initialization */
- initsys();
-
- FileName = qf;
- LineNumber = 0;
- if (Verbose && full)
- printf("\nRunning %s\n", e->e_id);
- while (fgetfolded(buf, sizeof buf, qfp) != NULL)
- {
- if (tTd(40, 4))
- printf("+++++ %s\n", buf);
- switch (buf[0])
- {
- case 'C': /* specify controlling user */
- setctluser(&buf[1]);
- gotctluser = 1;
- break;
-
- case 'R': /* specify recipient */
- sendtolist(&buf[1], (ADDRESS *) NULL, &e->e_sendqueue);
- break;
-
- case 'E': /* specify error recipient */
- sendtolist(&buf[1], (ADDRESS *) NULL, &e->e_errorqueue);
- break;
-
- case 'H': /* header */
- if (full)
- (void) chompheader(&buf[1], FALSE);
- break;
-
- case 'M': /* message */
- e->e_message = newstr(&buf[1]);
- break;
-
- case 'S': /* sender */
- setsender(newstr(&buf[1]));
- break;
-
- case 'D': /* data file name */
- if (!full)
- break;
- e->e_df = newstr(&buf[1]);
- e->e_dfp = fopen(e->e_df, "r");
- if (e->e_dfp == NULL)
- syserr("readqf: cannot open %s", e->e_df);
- break;
-
- case 'T': /* init time */
- e->e_ctime = atol(&buf[1]);
- break;
-
- case 'P': /* message priority */
- e->e_msgpriority = atol(&buf[1]) + WkTimeFact;
- break;
-
- case '\0': /* blank line; ignore */
- break;
-
- default:
- syserr("readqf(%s:%d): bad line \"%s\"", e->e_id,
- LineNumber, buf);
- break;
- }
- /*
- ** The `C' queue file command operates on the next line,
- ** so we use "gotctluser" to maintain state as follows:
- ** 0 - no controlling user,
- ** 1 - controlling user has been set but not used,
- ** 2 - controlling user must be used on next iteration.
- */
- if (gotctluser == 1)
- gotctluser++;
- else if (gotctluser == 2)
- {
- clrctluser();
- gotctluser = 0;
- }
- }
-
- /* clear controlling user in case we break out prematurely */
- clrctluser();
-
- FileName = NULL;
-
- /*
- ** If we haven't read any lines, this queue file is empty.
- ** Arrange to remove it without referencing any null pointers.
- */
-
- if (LineNumber == 0)
- {
- errno = 0;
- e->e_flags |= EF_CLRQUEUE | EF_FATALERRS | EF_RESPONSE;
- }
- return qfp;
- }
- /*
- ** PRINTQUEUE -- print out a representation of the mail queue
- **
- ** Parameters:
- ** none.
- **
- ** Returns:
- ** none.
- **
- ** Side Effects:
- ** Prints a listing of the mail queue on the standard output.
- */
-
- printqueue()
- {
- register WORK *w;
- FILE *f;
- int nrequests;
- char buf[MAXLINE];
- char cbuf[MAXLINE];
-
- /*
- ** Read and order the queue.
- */
-
- nrequests = orderq(TRUE);
-
- /*
- ** Print the work list that we have read.
- */
-
- /* first see if there is anything */
- if (nrequests <= 0)
- {
- printf("Mail queue is empty\n");
- return;
- }
-
- la = getla(); /* get load average */
-
- printf("\t\tMail Queue (%d request%s", nrequests, nrequests == 1 ? "" : "s");
- if (nrequests > QUEUESIZE)
- printf(", only %d printed", QUEUESIZE);
- if (Verbose)
- printf(")\n--QID-- --Size-- -Priority- ---Q-Time--- -----------Sender/Recipient-----------\n");
- else
- printf(")\n--QID-- --Size-- -----Q-Time----- ------------Sender/Recipient------------\n");
- for (w = WorkQ; w != NULL; w = w->w_next)
- {
- struct stat st;
- auto time_t submittime = 0;
- long dfsize = -1;
- char message[MAXLINE];
- extern bool shouldqueue();
-
- f = fopen(w->w_name, "r");
- if (f == NULL)
- {
- errno = 0;
- continue;
- }
- printf("%7s", w->w_name + 2);
- if (flock(fileno(f), LOCK_SH|LOCK_NB) < 0)
- printf("*");
- else if (shouldqueue(w->w_pri))
- printf("X");
- else
- printf(" ");
- errno = 0;
-
- message[0] = '\0';
- cbuf[0] = '\0';
- while (fgets(buf, sizeof buf, f) != NULL)
- {
- fixcrlf(buf, TRUE);
- switch (buf[0])
- {
- case 'M': /* error message */
- (void) strcpy(message, &buf[1]);
- break;
-
- case 'S': /* sender name */
- if (Verbose)
- printf("%8ld %10ld %.12s %.38s", dfsize,
- w->w_pri, ctime(&submittime) + 4,
- &buf[1]);
- else
- printf("%8ld %.16s %.45s", dfsize,
- ctime(&submittime), &buf[1]);
- if (message[0] != '\0')
- printf("\n\t\t (%.60s)", message);
- break;
- case 'C': /* controlling user */
- if (strlen(buf) < MAXLINE-3) /* sanity */
- (void) strcat(buf, ") ");
- cbuf[0] = cbuf[1] = '(';
- (void) strncpy(&cbuf[2], &buf[1], MAXLINE-1);
- cbuf[MAXLINE-1] = '\0';
- break;
-
- case 'R': /* recipient name */
- if (cbuf[0] != '\0') {
- /* prepend controlling user to `buf' */
- (void) strncat(cbuf, &buf[1],
- MAXLINE-strlen(cbuf));
- cbuf[MAXLINE-1] = '\0';
- (void) strcpy(buf, cbuf);
- cbuf[0] = '\0';
- }
- if (Verbose)
- printf("\n\t\t\t\t\t %.38s", &buf[1]);
- else
- printf("\n\t\t\t\t %.45s", &buf[1]);
- break;
-
- case 'T': /* creation time */
- submittime = atol(&buf[1]);
- break;
-
- case 'D': /* data file name */
- if (stat(&buf[1], &st) >= 0)
- dfsize = st.st_size;
- break;
- }
- }
- if (submittime == (time_t) 0)
- printf(" (no control file)");
- printf("\n");
- (void) fclose(f);
- }
- }
-
- # endif QUEUE
- /*
- ** QUEUENAME -- build a file name in the queue directory for this envelope.
- **
- ** Assigns an id code if one does not already exist.
- ** This code is very careful to avoid trashing existing files
- ** under any circumstances.
- **
- ** Parameters:
- ** e -- envelope to build it in/from.
- ** type -- the file type, used as the first character
- ** of the file name.
- **
- ** Returns:
- ** a pointer to the new file name (in a static buffer).
- **
- ** Side Effects:
- ** Will create the qf file if no id code is
- ** already assigned. This will cause the envelope
- ** to be modified.
- */
-
- char *
- queuename(e, type)
- register ENVELOPE *e;
- char type;
- {
- static char buf[MAXNAME];
- static int pid = -1;
- char c1 = 'A';
- char c2 = 'A';
-
- if (e->e_id == NULL)
- {
- char qf[20];
-
- /* find a unique id */
- if (pid != getpid())
- {
- /* new process -- start back at "AA" */
- pid = getpid();
- c1 = 'A';
- c2 = 'A' - 1;
- }
- (void) sprintf(qf, "qfAA%05d", pid);
-
- while (c1 < '~' || c2 < 'Z')
- {
- int i;
-
- if (c2 >= 'Z')
- {
- c1++;
- c2 = 'A' - 1;
- }
- qf[2] = c1;
- qf[3] = ++c2;
- if (tTd(7, 20))
- printf("queuename: trying \"%s\"\n", qf);
-
- i = open(qf, O_WRONLY|O_CREAT|O_EXCL, FileMode);
- if (i < 0) {
- if (errno != EEXIST) {
- syserr("queuename: Cannot create \"%s\" in \"%s\"",
- qf, QueueDir);
- exit(EX_UNAVAILABLE);
- }
- } else {
- (void) close(i);
- break;
- }
- }
- if (c1 >= '~' && c2 >= 'Z')
- {
- syserr("queuename: Cannot create \"%s\" in \"%s\"",
- qf, QueueDir);
- exit(EX_OSERR);
- }
- e->e_id = newstr(&qf[2]);
- define('i', e->e_id, e);
- if (tTd(7, 1))
- printf("queuename: assigned id %s, env=%x\n", e->e_id, e);
- # ifdef LOG
- if (LogLevel > 16)
- syslog(LOG_DEBUG, "%s: assigned id", e->e_id);
- # endif LOG
- }
-
- if (type == '\0')
- return (NULL);
- (void) sprintf(buf, "%cf%s", type, e->e_id);
- if (tTd(7, 2))
- printf("queuename: %s\n", buf);
- return (buf);
- }
- /*
- ** UNLOCKQUEUE -- unlock the queue entry for a specified envelope
- **
- ** Parameters:
- ** e -- the envelope to unlock.
- **
- ** Returns:
- ** none
- **
- ** Side Effects:
- ** unlocks the queue for `e'.
- */
-
- unlockqueue(e)
- ENVELOPE *e;
- {
- /* remove the transcript */
- # ifdef LOG
- if (LogLevel > 19)
- syslog(LOG_DEBUG, "%s: unlock", e->e_id);
- # endif LOG
- if (!tTd(51, 4))
- xunlink(queuename(e, 'x'));
-
- }
- /*
- ** GETCTLUSER -- return controlling user if mailing to prog or file
- **
- ** Check for a "|" or "/" at the beginning of the address. If
- ** found, return a controlling username.
- **
- ** Parameters:
- ** a - the address to check out
- **
- ** Returns:
- ** Either NULL, if we werent mailing to a program or file,
- ** or a controlling user name (possibly in getpwuid's
- ** static buffer).
- **
- ** Side Effects:
- ** none.
- */
-
- char *
- getctluser(a)
- ADDRESS *a;
- {
- extern ADDRESS *getctladdr();
- struct passwd *pw;
- char *retstr;
-
- /*
- ** Get unquoted user for file, program or user.name check.
- ** N.B. remove this code block to always emit controlling
- ** addresses (at the expense of backward compatibility).
- */
-
- {
- char buf[MAXNAME];
- (void) strncpy(buf, a->q_paddr, MAXNAME);
- buf[MAXNAME-1] = '\0';
- stripquotes(buf, TRUE);
-
- if (buf[0] != '|' && buf[0] != '/')
- return((char *)NULL);
- }
-
- a = getctladdr(a); /* find controlling address */
-
- if (a != NULL && a->q_uid != 0 && (pw = getpwuid(a->q_uid)) != NULL)
- retstr = pw->pw_name;
- else /* use default user */
- retstr = DefUser;
-
- if (tTd(40, 5))
- printf("Set controlling user for `%s' to `%s'\n",
- (a == NULL)? "<null>": a->q_paddr, retstr);
-
- return(retstr);
- }
- /*
- ** SETCTLUSER - sets `CtlUser' to controlling user
- ** CLRCTLUSER - clears controlling user (no params, nothing returned)
- **
- ** These routines manipulate `CtlUser'.
- **
- ** Parameters:
- ** str - controlling user as passed to setctluser()
- **
- ** Returns:
- ** None.
- **
- ** Side Effects:
- ** `CtlUser' is changed.
- */
-
- static char CtlUser[MAXNAME];
-
- setctluser(str)
- register char *str;
- {
- (void) strncpy(CtlUser, str, MAXNAME);
- CtlUser[MAXNAME-1] = '\0';
- }
-
- clrctluser()
- {
- CtlUser[0] = '\0';
- }
-
- /*
- ** SETCTLADDR -- create a controlling address
- **
- ** If global variable `CtlUser' is set and we are given a valid
- ** address, make that address a controlling address; change the
- ** `q_uid', `q_gid', and `q_ruser' fields and set QGOODUID.
- **
- ** Parameters:
- ** a - address for which control uid/gid info may apply
- **
- ** Returns:
- ** None.
- **
- ** Side Effects:
- ** Fills in uid/gid fields in address and sets QGOODUID
- ** flag if appropriate.
- */
-
- setctladdr(a)
- ADDRESS *a;
- {
- struct passwd *pw;
-
- /*
- ** If there is no current controlling user, or we were passed a
- ** NULL addr ptr or we already have a controlling user, return.
- */
-
- if (CtlUser[0] == '\0' || a == NULL || a->q_ruser)
- return;
-
- /*
- ** Set up addr fields for controlling user. If `CtlUser' is no
- ** longer valid, use the default user/group.
- */
-
- if ((pw = getpwnam(CtlUser)) != NULL)
- {
- if (a->q_home)
- free(a->q_home);
- a->q_home = newstr(pw->pw_dir);
- a->q_uid = pw->pw_uid;
- a->q_gid = pw->pw_gid;
- a->q_ruser = newstr(CtlUser);
- }
- else
- {
- a->q_uid = DefUid;
- a->q_gid = DefGid;
- a->q_ruser = newstr(DefUser);
- }
-
- a->q_flags |= QGOODUID; /* flag as a "ctladdr" */
-
- if (tTd(40, 5))
- printf("Restored controlling user for `%s' to `%s'\n",
- a->q_paddr, a->q_ruser);
- }
-