148 lines
4.7 KiB
C
148 lines
4.7 KiB
C
/*
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* $Id: macros.h,v 1.9 2004/01/23 18:56:43 vixie Exp $
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*/
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/*
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* Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
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* Copyright (c) 1997,2000 by Internet Software Consortium, Inc.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef CRONIE_MACROS_H
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#define CRONIE_MACROS_H
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#ifdef HAVE_LIMITS_H
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#include <limits.h>
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#endif
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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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* ERR must be < OK.
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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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/* 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 INIT_PID 1 /* parent of orphans */
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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 PATH_MAX/* max length of internally generated fn */
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#define MAX_COMMAND 131072 /* max length of internally generated cmd (max sh cmd line length) */
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#define MAX_ENVSTR 131072 /* max length of envvar=value\0 strings */
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#define MAX_TEMPSTR 131072 /* obvious */
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#define MAX_UNAME 256 /* max length of username */
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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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#define MAX_USER_ENVS 1000 /* maximum environment variables in user's crontab */
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#define MAX_USER_ENTRIES 10000 /* maximum crontab entries in user's crontab */
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#define MAX_GARBAGE 32768 /* max num of chars of comments and whitespaces between entries */
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#define MAX_CLOSE_FD 10000 /* max fd num to close when spawning a child process */
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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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#define PPC_NULL ((const 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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#if DEBUGGING
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# define Debug(mask, message) \
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if ((DebugFlags & (mask)) != 0) \
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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 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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#ifdef HAVE_STRUCT_TM_TM_GMTOFF
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#define get_gmtoff(c, t) ((t)->tm_gmtoff)
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#endif
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#define SECONDS_PER_MINUTE 60
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#define SECONDS_PER_HOUR 3600
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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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#define TMAX(a,b) ((a)>(b)?(a):(b))
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#define TMIN(a,b) ((a)<(b)?(a):(b))
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/*
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* Because crontab/at files may be owned by their respective users we
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* take extreme care in opening them. If the OS lacks the O_NOFOLLOW
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* we will just have to live without it. In order for this to be an
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* issue an attacker would have to subvert group CRON_GROUP.
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*/
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#include <fcntl.h>
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#ifndef O_NOFOLLOW
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#define O_NOFOLLOW 0
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#endif
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#endif /* CRONIE_MACROS_H */
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