libexec/cron/externs.h

   1 /* Copyright 1993 by Paul Vixie
   2  * All rights reserved
   3  *
   4  * Distribute freely, except: don't remove my name from the source or
   5  * documentation (don't take credit for my work), mark your changes (don't
   6  * get me blamed for your possible bugs), don't alter or remove this
   7  * notice.  May be sold if buildable source is provided to buyer.  No
   8  * warrantee of any kind, express or implied, is included with this
   9  * software; use at your own risk, responsibility for damages (if any) to
  10  * anyone resulting from the use of this software rests entirely with the
  11  * user.
  12  *
  13  * Send bug reports, bug fixes, enhancements, requests, flames, etc., and
  14  * I'll try to keep a version up to date.  I can be reached as follows:
  15  * Paul Vixie          <paul@vix.com>          uunet!decwrl!vixie!paul
  16  */
  17
  18 #if defined(POSIX) || defined(ATT)
  19 # include <stdlib.h>
  20 # include <unistd.h>
  21 # include <string.h>
  22 # include <dirent.h>
  23 # define DIR_T  struct dirent
  24 # define WAIT_T int
  25 # define WAIT_IS_INT 1
  26 extern char *tzname[2];
  27 # define TZONE(tm) tzname[(tm).tm_isdst]
  28 #endif
  29
  30 #if defined(UNIXPC)
  31 # undef WAIT_T
  32 # undef WAIT_IS_INT
  33 # define WAIT_T union wait
  34 #endif
  35
  36 #if defined(POSIX)
  37 # define SIG_T  sig_t
  38 # define TIME_T time_t
  39 # define PID_T pid_t
  40 #endif
  41
  42 #if defined(ATT)
  43 # define SIG_T  void
  44 # define TIME_T long
  45 # define PID_T int
  46 #endif
  47
  48 #if !defined(POSIX) && !defined(ATT)
  49 /* classic BSD */
  50 extern  time_t          time();
  51 extern  unsigned        sleep();
  52 extern  struct tm       *localtime();
  53 extern  struct passwd   *getpwnam();
  54 extern  int             errno;
  55 extern  void            perror(), exit(), free();
  56 extern  char            *getenv(), *strcpy(), *strchr(), *strtok();
  57 extern  void            *malloc(), *realloc();
  58 # define SIG_T  void
  59 # define TIME_T long
  60 # define PID_T int
  61 # define WAIT_T union wait
  62 # define DIR_T  struct direct
  63 # include <sys/dir.h>
  64 # define TZONE(tm) (tm).tm_zone
  65 #endif
  66
  67 /* getopt() isn't part of POSIX.  some systems define it in <stdlib.h> anyway.
  68  * of those that do, some complain that our definition is different and some
  69  * do not.  to add to the misery and confusion, some systems define getopt()
  70  * in ways that we cannot predict or comprehend, yet do not define the adjunct
  71  * external variables needed for the interface.
  72  */
  73 #if (!defined(BSD) || (BSD < 198911)) && !defined(ATT) && !defined(UNICOS)
  74 int     getopt __P((int, char * const *, const char *));
  75 #endif
  76
  77 #if (!defined(BSD) || (BSD < 199103))
  78 extern  char *optarg;
  79 extern  int optind, opterr, optopt;
  80 #endif
  81
  82 #if WAIT_IS_INT
  83 # ifndef WEXITSTATUS
  84 #  define WEXITSTATUS(x) (((x) >> 8) & 0xff)
  85 # endif
  86 # ifndef WTERMSIG
  87 #  define WTERMSIG(x)   ((x) & 0x7f)
  88 # endif
  89 # ifndef WCOREDUMP
  90 #  define WCOREDUMP(x)  ((x) & 0x80)
  91 # endif
  92 #else /*WAIT_IS_INT*/
  93 # ifndef WEXITSTATUS
  94 #  define WEXITSTATUS(x) ((x).w_retcode)
  95 # endif
  96 # ifndef WTERMSIG
  97 #  define WTERMSIG(x)   ((x).w_termsig)
  98 # endif
  99 # ifndef WCOREDUMP
 100 #  define WCOREDUMP(x)  ((x).w_coredump)
 101 # endif
 102 #endif /*WAIT_IS_INT*/
 103
 104 #ifndef WIFSIGNALED
 105 #define WIFSIGNALED(x)  (WTERMSIG(x) != 0)
 106 #endif
 107 #ifndef WIFEXITED
 108 #define WIFEXITED(x)    (WTERMSIG(x) == 0)
 109 #endif
 110
 111 #ifdef NEED_STRCASECMP
 112 extern  int             strcasecmp __P((char *, char *));
 113 #endif
 114
 115 #ifdef NEED_STRDUP
 116 extern  char            *strdup __P((char *));
 117 #endif
 118
 119 #ifdef NEED_STRERROR
 120 extern  char            *strerror __P((int));
 121 #endif
 122
 123 #ifdef NEED_FLOCK
 124 extern  int             flock __P((int, int));
 125 # define LOCK_SH 1
 126 # define LOCK_EX 2
 127 # define LOCK_NB 4
 128 # define LOCK_UN 8
 129 #endif
 130
 131 #ifdef NEED_SETSID
 132 extern  int             setsid __P((void));
 133 #endif
 134
 135 #ifdef NEED_GETDTABLESIZE
 136 extern  int             getdtablesize __P((void));
 137 #endif
 138
 139 #ifdef NEED_SETENV
 140 extern  int             setenv __P((char *, char *, int));
 141 #endif
 142
 143 #ifdef NEED_VFORK
 144 extern  PID_T           vfork __P((void));
 145 #endif