129 lines
2.5 KiB
C
129 lines
2.5 KiB
C
/* $NetBSD: job.c,v 1.5 2003/08/13 03:51:15 atatat Exp $ */
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/* Copyright 1988,1990,1993,1994 by Paul Vixie
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* All rights reserved
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*
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* Distribute freely, except: don't remove my name from the source or
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* documentation (don't take credit for my work), mark your changes (don't
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* get me blamed for your possible bugs), don't alter or remove this
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* notice. May be sold if buildable source is provided to buyer. No
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* warrantee of any kind, express or implied, is included with this
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* software; use at your own risk, responsibility for damages (if any) to
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* anyone resulting from the use of this software rests entirely with the
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* user.
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*
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* Send bug reports, bug fixes, enhancements, requests, flames, etc., and
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* I'll try to keep a version up to date. I can be reached as follows:
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* Paul Vixie <paul@vix.com> uunet!decwrl!vixie!paul
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*/
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#include <sys/cdefs.h>
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#include <errno.h>
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#if SYS_TIME_H
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# include <sys/time.h>
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#else
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# include <time.h>
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#endif
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#if !defined(lint) && !defined(LINT)
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#if 0
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static char rcsid[] = "Id: job.c,v 1.6 1994/01/15 20:43:43 vixie Exp";
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#else
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__RCSID("$NetBSD: job.c,v 1.5 2003/08/13 03:51:15 atatat Exp $");
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#endif
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#endif
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#include "cron.h"
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typedef struct _job {
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struct _job *next;
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entry *e;
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user *u;
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time_t t;
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} job;
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static job *jhead = NULL, *jtail = NULL;
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static int okay_to_go __P((job *));
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void
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job_add(e, u)
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entry *e;
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user *u;
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{
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job *j;
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/* if already on queue, keep going */
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for (j=jhead; j; j=j->next)
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if (j->e == e && j->u == u) {
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j->t = TargetTime;
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return;
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}
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/* build a job queue element */
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j = (job*)malloc(sizeof(job));
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j->next = (job*) NULL;
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j->e = e;
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j->u = u;
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j->t = TargetTime;
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/* add it to the tail */
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if (!jhead) { jhead=j; }
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else { jtail->next=j; }
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jtail = j;
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}
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int
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job_runqueue()
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{
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job *j, *jn;
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int run = 0;
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for (j=jhead; j; j=jn) {
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if (okay_to_go(j))
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do_command(j->e, j->u);
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else {
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char *x = mkprints((u_char *)j->e->cmd,
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strlen(j->e->cmd));
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char *usernm = env_get("LOGNAME", j->e->envp);
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log_it(usernm, getpid(), "CMD (skipped)", x);
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free(x);
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}
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jn = j->next;
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free(j);
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run++;
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}
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jhead = jtail = NULL;
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return run;
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}
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static int
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okay_to_go(j)
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job *j;
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{
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char *within, *t;
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int delta;
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if (j->e->flags & WHEN_REBOOT)
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return (1);
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within = env_get("CRON_WITHIN", j->e->envp);
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if (within == NULL)
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return (1);
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/* XXX handle 2m, 4h, etc? */
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errno = 0;
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delta = strtol(within, &t, 10);
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if (errno == ERANGE || *t != '\0' || delta <= 0)
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return (1);
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return ((j->t + delta) > time(NULL));
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}
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