264 lines
7.1 KiB
C
264 lines
7.1 KiB
C
/* cron.h - header for vixie's cron
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*
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* $Header: /cvsroot/src/libexec/crond/Attic/cron.h,v 1.1.1.1 1993/03/21 09:45:37 cgd Exp $
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* $Source: /cvsroot/src/libexec/crond/Attic/cron.h,v $
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* $Revision: 1.1.1.1 $
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* $Log: cron.h,v $
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* Revision 1.1.1.1 1993/03/21 09:45:37 cgd
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* initial import of 386bsd-0.1 sources
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*
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* Revision 2.1 90/07/18 00:23:47 vixie
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* Baseline for 4.4BSD release
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*
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* Revision 2.0 88/12/10 04:57:39 vixie
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* V2 Beta
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*
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* Revision 1.2 88/11/29 13:05:46 vixie
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* seems to work on Ultrix 3.0 FT1
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*
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* Revision 1.1 88/11/14 12:27:49 vixie
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* Initial revision
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*
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* Revision 1.4 87/05/02 17:33:08 paul
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* baseline for mod.sources release
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*
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* vix 14jan87 [0 or 7 can be sunday; thanks, mwm@berkeley]
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* vix 30dec86 [written]
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*/
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/* Copyright 1988,1990 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, 329 Noe Street, San Francisco, CA, 94114, (415) 864-7013,
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* paul@vixie.sf.ca.us || {hoptoad,pacbell,decwrl,crash}!vixie!paul
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*/
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#ifndef _CRON_FLAG
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#define _CRON_FLAG
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#include <stdio.h>
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#include <ctype.h>
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#include <bitstring.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "config.h"
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/* these are really immutable, and are
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* defined for symbolic convenience only
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* TRUE, FALSE, and ERR must be distinct
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*/
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#define TRUE 1
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#define FALSE 0
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/* system calls return this on success */
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#define OK 0
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/* or this on error */
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#define ERR (-1)
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/* meaningless cookie for smart compilers that will pick their
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* own register variables; this makes the code neater.
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*/
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#define local /**/
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/* turn this on to get '-x' code */
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#ifndef DEBUGGING
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#define DEBUGGING FALSE
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#endif
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#define READ_PIPE 0 /* which end of a pipe pair do you read? */
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#define WRITE_PIPE 1 /* or write to? */
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#define STDIN 0 /* what is stdin's file descriptor? */
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#define STDOUT 1 /* stdout's? */
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#define STDERR 2 /* stderr's? */
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#define ERROR_EXIT 1 /* exit() with this will scare the shell */
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#define OK_EXIT 0 /* exit() with this is considered 'normal' */
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#define MAX_FNAME 100 /* max length of internally generated fn */
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#define MAX_COMMAND 1000 /* max length of internally generated cmd */
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#define MAX_ENVSTR 1000 /* max length of envvar=value\0 strings */
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#define MAX_TEMPSTR 100 /* obvious */
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#define MAX_UNAME 20 /* max length of username, should be overkill */
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#define ROOT_UID 0 /* don't change this, it really must be root */
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#define ROOT_USER "root" /* ditto */
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/* NOTE: these correspond to DebugFlagNames,
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* defined below.
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*/
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#define DEXT 0x0001 /* extend flag for other debug masks */
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#define DSCH 0x0002 /* scheduling debug mask */
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#define DPROC 0x0004 /* process control debug mask */
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#define DPARS 0x0008 /* parsing debug mask */
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#define DLOAD 0x0010 /* database loading debug mask */
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#define DMISC 0x0020 /* misc debug mask */
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#define DTEST 0x0040 /* test mode: don't execute any commands */
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/* the code does not depend on any of vfork's
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* side-effects; it just uses it as a quick
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* fork-and-exec.
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*/
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#if defined(BSD)
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# define VFORK vfork
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#endif
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#if defined(ATT)
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# define VFORK fork
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#endif
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#define CRON_TAB(u) "%s/%s", SPOOL_DIR, u
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#define REG register
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#define PPC_NULL ((char **)NULL)
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#ifndef MAXHOSTNAMELEN
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#define MAXHOSTNAMELEN 64
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#endif
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#define Skip_Blanks(c, f) \
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while (c == '\t' || c == ' ') \
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c = get_char(f);
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#define Skip_Nonblanks(c, f) \
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while (c!='\t' && c!=' ' && c!='\n' && c != EOF) \
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c = get_char(f);
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#define Skip_Line(c, f) \
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do {c = get_char(f);} while (c != '\n' && c != EOF);
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#if DEBUGGING
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# define Debug(mask, message) \
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if ( (DebugFlags & (mask) ) == (mask) ) \
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printf message;
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#else /* !DEBUGGING */
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# define Debug(mask, message) \
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;
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#endif /* DEBUGGING */
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#define MkLower(ch) (isupper(ch) ? tolower(ch) : ch)
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#define MkUpper(ch) (islower(ch) ? toupper(ch) : ch)
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#define Set_LineNum(ln) {Debug(DPARS|DEXT,("linenum=%d\n",ln)); \
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LineNumber = ln; \
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}
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#define FIRST_MINUTE 0
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#define LAST_MINUTE 59
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#define MINUTE_COUNT (LAST_MINUTE - FIRST_MINUTE + 1)
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#define FIRST_HOUR 0
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#define LAST_HOUR 23
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#define HOUR_COUNT (LAST_HOUR - FIRST_HOUR + 1)
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#define FIRST_DOM 1
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#define LAST_DOM 31
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#define DOM_COUNT (LAST_DOM - FIRST_DOM + 1)
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#define FIRST_MONTH 1
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#define LAST_MONTH 12
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#define MONTH_COUNT (LAST_MONTH - FIRST_MONTH + 1)
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/* note on DOW: 0 and 7 are both Sunday, for compatibility reasons. */
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#define FIRST_DOW 0
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#define LAST_DOW 7
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#define DOW_COUNT (LAST_DOW - FIRST_DOW + 1)
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/* each user's crontab will be held as a list of
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* the following structure.
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*
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* These are the cron commands.
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*/
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typedef struct _entry
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{
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struct _entry *next;
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char *cmd;
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bitstr_t bit_decl(minute, MINUTE_COUNT);
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bitstr_t bit_decl(hour, HOUR_COUNT);
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bitstr_t bit_decl(dom, DOM_COUNT);
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bitstr_t bit_decl(month, MONTH_COUNT);
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bitstr_t bit_decl(dow, DOW_COUNT);
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int flags;
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# define DOM_STAR 0x1
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# define DOW_STAR 0x2
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# define WHEN_REBOOT 0x4
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}
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entry;
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/* the crontab database will be a list of the
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* following structure, one element per user.
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*
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* These are the crontabs.
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*/
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typedef struct _user
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{
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struct _user *next, *prev; /* links */
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int uid; /* uid from passwd file */
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int gid; /* gid from passwd file */
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char **envp; /* environ for commands */
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time_t mtime; /* last modtime of crontab */
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entry *crontab; /* this person's crontab */
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}
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user;
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typedef struct _cron_db
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{
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user *head, *tail; /* links */
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time_t mtime; /* last modtime on spooldir */
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}
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cron_db;
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/* in the C tradition, we only create
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* variables for the main program, just
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* extern them elsewhere.
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*/
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#ifdef MAIN_PROGRAM
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# if !defined(LINT) && !defined(lint)
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static char *copyright[] = {
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"@(#) Copyright (C) 1988, 1989, 1990 by Paul Vixie",
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"@(#) All rights reserved"
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};
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# endif
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char *MonthNames[] = {
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"Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
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NULL};
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char *DowNames[] = {
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"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun",
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NULL};
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char *ProgramName;
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int LineNumber;
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time_t TargetTime;
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# if DEBUGGING
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int DebugFlags;
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char *DebugFlagNames[] = { /* sync with #defines */
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"ext", "sch", "proc", "pars", "load", "misc", "test",
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NULL}; /* NULL must be last element */
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# endif /* DEBUGGING */
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#else /* !MAIN_PROGRAM */
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extern char *MonthNames[];
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extern char *DowNames[];
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extern char *ProgramName;
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extern int LineNumber;
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extern time_t TargetTime;
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# if DEBUGGING
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extern int DebugFlags;
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extern char *DebugFlagNames[];
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# endif /* DEBUGGING */
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#endif /* MAIN_PROGRAM */
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#endif /* _CRON_FLAG */
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