1 /* 2 * $Id: macros.h,v 1.9 2004/01/23 18:56:43 vixie Exp $ 3 */ 4 5 /* 6 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") 7 * Copyright (c) 1997,2000 by Internet Software Consortium, Inc. 8 * 9 * Permission to use, copy, modify, and distribute this software for any 10 * purpose with or without fee is hereby granted, provided that the above 11 * copyright notice and this permission notice appear in all copies. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES 14 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 15 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR 16 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 17 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 18 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 19 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 20 */ 21 22 /* these are really immutable, and are 23 * defined for symbolic convenience only 24 * TRUE, FALSE, and ERR must be distinct 25 * ERR must be < OK. 26 */ 27 #define TRUE 1 28 #define FALSE 0 29 /* system calls return this on success */ 30 #define OK 0 31 /* or this on error */ 32 #define ERR (-1) 33 34 /* turn this on to get '-x' code */ 35 #ifndef DEBUGGING 36 #define DEBUGGING FALSE 37 #endif 38 39 #define INIT_PID 1 /* parent of orphans */ 40 #define READ_PIPE 0 /* which end of a pipe pair do you read? */ 41 #define WRITE_PIPE 1 /* or write to? */ 42 #define STDIN 0 /* what is stdin's file descriptor? */ 43 #define STDOUT 1 /* stdout's? */ 44 #define STDERR 2 /* stderr's? */ 45 #define ERROR_EXIT 1 /* exit() with this will scare the shell */ 46 #define OK_EXIT 0 /* exit() with this is considered 'normal' */ 47 #define MAX_FNAME 100 /* max length of internally generated fn */ 48 #define MAX_COMMAND 1000 /* max length of internally generated cmd */ 49 #define MAX_ENVSTR 1000 /* max length of envvar=value\0 strings */ 50 #define MAX_TEMPSTR 100 /* obvious */ 51 #define MAX_UNAME 33 /* max length of username, should be overkill */ 52 #define ROOT_UID 0 /* don't change this, it really must be root */ 53 #define ROOT_USER "root" /* ditto */ 54 55 /* NOTE: these correspond to DebugFlagNames, 56 * defined below. 57 */ 58 #define DEXT 0x0001 /* extend flag for other debug masks */ 59 #define DSCH 0x0002 /* scheduling debug mask */ 60 #define DPROC 0x0004 /* process control debug mask */ 61 #define DPARS 0x0008 /* parsing debug mask */ 62 #define DLOAD 0x0010 /* database loading debug mask */ 63 #define DMISC 0x0020 /* misc debug mask */ 64 #define DTEST 0x0040 /* test mode: don't execute any commands */ 65 66 #define PPC_NULL ((const char **)NULL) 67 68 #ifndef MAXHOSTNAMELEN 69 #define MAXHOSTNAMELEN 64 70 #endif 71 72 #define Skip_Blanks(c, f) \ 73 while (c == '\t' || c == ' ') \ 74 c = get_char(f); 75 76 #define Skip_Nonblanks(c, f) \ 77 while (c!='\t' && c!=' ' && c!='\n' && c != EOF) \ 78 c = get_char(f); 79 80 #if DEBUGGING 81 # define Debug(mask, message) \ 82 if ((DebugFlags & (mask)) != 0) \ 83 printf message; 84 #else /* !DEBUGGING */ 85 # define Debug(mask, message) \ 86 ; 87 #endif /* DEBUGGING */ 88 89 #define MkUpper(ch) (islower(ch) ? toupper(ch) : ch) 90 #define Set_LineNum(ln) {Debug(DPARS|DEXT,("linenum=%d\n",ln)); \ 91 LineNumber = ln; \ 92 } 93 94 #ifdef HAVE_TM_GMTOFF 95 #define get_gmtoff(c, t) ((t)->tm_gmtoff) 96 #endif 97 98 #define SECONDS_PER_MINUTE 60 99 #define SECONDS_PER_HOUR 3600 100 101 #define FIRST_MINUTE 0 102 #define LAST_MINUTE 59 103 #define MINUTE_COUNT (LAST_MINUTE - FIRST_MINUTE + 1) 104 105 #define FIRST_HOUR 0 106 #define LAST_HOUR 23 107 #define HOUR_COUNT (LAST_HOUR - FIRST_HOUR + 1) 108 109 #define FIRST_DOM 1 110 #define LAST_DOM 31 111 #define DOM_COUNT (LAST_DOM - FIRST_DOM + 1) 112 113 #define FIRST_MONTH 1 114 #define LAST_MONTH 12 115 #define MONTH_COUNT (LAST_MONTH - FIRST_MONTH + 1) 116 117 /* note on DOW: 0 and 7 are both Sunday, for compatibility reasons. */ 118 #define FIRST_DOW 0 119 #define LAST_DOW 7 120 #define DOW_COUNT (LAST_DOW - FIRST_DOW + 1) 121 122 /* 123 * Because crontab/at files may be owned by their respective users we 124 * take extreme care in opening them. If the OS lacks the O_NOFOLLOW 125 * we will just have to live without it. In order for this to be an 126 * issue an attacker would have to subvert group CRON_GROUP. 127 */ 128 #ifndef O_NOFOLLOW 129 #define O_NOFOLLOW 0 130 #endif 131