Initial revision

1 files changed, 598 insertions, 0 deletions

diff --git a/Src/system.h b/Src/system.h
new file mode 100644
index 000000000..e42f3b891
--- /dev/null
+++ b/Src/system.h
@@ -0,0 +1,598 @@
+/*
+ * system.h - system configuration header file
+ *
+ * This file is part of zsh, the Z shell.
+ *
+ * Copyright (c) 1992-1997 Paul Falstad
+ * All rights reserved.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and to distribute modified versions of this software for any
+ * purpose, provided that the above copyright notice and the following
+ * two paragraphs appear in all copies of this software.
+ *
+ * In no event shall Paul Falstad or the Zsh Development Group be liable
+ * to any party for direct, indirect, special, incidental, or consequential
+ * damages arising out of the use of this software and its documentation,
+ * even if Paul Falstad and the Zsh Development Group have been advised of
+ * the possibility of such damage.
+ *
+ * Paul Falstad and the Zsh Development Group specifically disclaim any
+ * warranties, including, but not limited to, the implied warranties of
+ * merchantability and fitness for a particular purpose.  The software
+ * provided hereunder is on an "as is" basis, and Paul Falstad and the
+ * Zsh Development Group have no obligation to provide maintenance,
+ * support, updates, enhancements, or modifications.
+ *
+ */
+
+#ifdef __hpux
+# define _INCLUDE_POSIX_SOURCE 1
+# define _INCLUDE_XOPEN_SOURCE 1
+# define _INCLUDE_HPUX_SOURCE 1
+#endif
+
+#ifdef sinix
+# define _XPG_IV 1
+#endif
+
+/* NeXT has half-implemented POSIX support *
+ * which currently fools configure         */
+#ifdef __NeXT__
+# undef HAVE_TERMIOS_H
+# undef HAVE_SYS_UTSNAME_H
+#endif
+
+#ifdef PROTOTYPES
+# define _(Args) Args
+#else
+# define _(Args) ()
+#endif
+
+#ifndef HAVE_ALLOCA
+# define alloca halloc
+#else
+# ifdef __GNUC__
+#  define alloca __builtin_alloca
+# else
+#  if HAVE_ALLOCA_H
+#   include <alloca.h>
+#  else
+#   ifdef _AIX
+ #   pragma alloca
+#   else
+#    ifndef alloca
+char *alloca _((size_t));
+#    endif
+#   endif
+#  endif
+# endif
+#endif
+
+#ifdef HAVE_LIBC_H     /* NeXT */
+# include <libc.h>
+#endif
+
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#include <stdio.h>
+#include <ctype.h>
+#include <sys/stat.h>
+#include <signal.h>
+#include <setjmp.h>
+
+#ifdef HAVE_PWD_H
+# include <pwd.h>
+#endif
+
+#ifdef HAVE_GRP_H
+# include <grp.h>
+#endif
+
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+#else /* !HAVE_DIRENT_H */
+# ifdef HAVE_SYS_NDIR_H
+#  include <sys/ndir.h>
+# endif
+# ifdef HAVE_SYS_DIR_H
+#  include <sys/dir.h>
+# endif
+# ifdef HAVE_NDIR_H
+#  include <ndir.h>
+# endif
+# define dirent direct
+# undef HAVE_STRUCT_DIRENT_D_INO
+# undef HAVE_STRUCT_DIRENT_D_STAT
+# ifdef HAVE_STRUCT_DIRECT_D_INO
+#  define HAVE_STRUCT_DIRENT_D_INO HAVE_STRUCT_DIRECT_D_INO
+# endif
+# ifdef HAVE_STRUCT_DIRECT_D_STAT
+#  define HAVE_STRUCT_DIRENT_D_STAT HAVE_STRUCT_DIRECT_D_STAT
+# endif
+#endif /* !HAVE_DIRENT_H */
+
+#ifdef HAVE_STDLIB_H
+# ifdef ZSH_MEM
+   /* malloc and calloc are macros in GNU's stdlib.h unless the
+    * the __MALLOC_0_RETURNS_NULL macro is defined */
+#  define __MALLOC_0_RETURNS_NULL
+# endif
+# include <stdlib.h>
+#endif
+
+#ifdef HAVE_ERRNO_H
+# include <errno.h>
+#endif
+
+#ifdef TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+
+/* This is needed by some old SCO unices */
+#ifndef HAVE_STRUCT_TIMEZONE
+struct timezone {
+    int tz_minuteswest;
+    int tz_dsttime;
+};
+#endif
+
+/* There's more than one non-standard way to get at this data */
+#if !defined(HAVE_STRUCT_DIRENT_D_INO) && defined(HAVE_STRUCT_DIRENT_D_STAT)
+# define d_ino d_stat.st_ino
+# define HAVE_STRUCT_DIRENT_D_INO HAVE_STRUCT_DIRENT_D_STAT
+#endif /* !HAVE_STRUCT_DIRENT_D_INO && HAVE_STRUCT_DIRENT_D_STAT */
+
+/* Sco needs the following include for struct utimbuf *
+ * which is strange considering we do not use that    *
+ * anywhere in the code                               */
+#ifdef __sco
+# include <utime.h>
+#endif
+
+#ifdef HAVE_SYS_TIMES_H
+# include <sys/times.h>
+#endif
+
+#if STDC_HEADERS || HAVE_STRING_H
+# include <string.h>
+/* An ANSI string.h and pre-ANSI memory.h might conflict.  */
+# if !STDC_HEADERS && HAVE_MEMORY_H
+#  include <memory.h>
+# endif /* not STDC_HEADERS and HAVE_MEMORY_H */
+#else   /* not STDC_HEADERS and not HAVE_STRING_H */
+# include <strings.h>
+/* memory.h and strings.h conflict on some systems.  */
+#endif /* not STDC_HEADERS and not HAVE_STRING_H */
+
+#ifdef HAVE_LOCALE_H
+# include <locale.h>
+#endif
+
+#ifdef HAVE_LIMITS_H
+# include <limits.h>
+#endif
+
+#ifdef HAVE_VARIABLE_LENGTH_ARRAYS
+# define VARARR(X,Y,Z)	X (Y)[Z]
+#else
+# define VARARR(X,Y,Z)	X *(Y) = (X *) alloca(sizeof(X) * (Z))
+#endif
+
+/* we should be getting this value from pathconf(_PC_PATH_MAX) */
+/* but this is too much trouble                                */
+#ifndef PATH_MAX
+# ifdef MAXPATHLEN
+#  define PATH_MAX MAXPATHLEN
+# else
+   /* so we will just pick something */
+#  define PATH_MAX 1024
+# endif
+#endif
+
+/* we should be getting this value from sysconf(_SC_OPEN_MAX) */
+/* but this is too much trouble                               */
+#ifndef OPEN_MAX
+# ifdef NOFILE
+#  define OPEN_MAX NOFILE
+# else
+   /* so we will just pick something */
+#  define OPEN_MAX 64
+# endif
+#endif
+
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#else
+# include <sys/file.h>
+#endif
+
+/* The following will only be defined if <sys/wait.h> is POSIX.    *
+ * So we don't have to worry about union wait. But some machines   *
+ * (NeXT) include <sys/wait.h> from other include files, so we     *
+ * need to undef and then redefine the wait macros if <sys/wait.h> *
+ * is not POSIX.                                                   */
+
+#ifdef HAVE_SYS_WAIT_H
+# include <sys/wait.h>
+#else
+# undef WIFEXITED
+# undef WEXITSTATUS
+# undef WIFSIGNALED
+# undef WTERMSIG
+# undef WCOREDUMP
+# undef WIFSTOPPED
+# undef WSTOPSIG
+#endif
+
+/* missing macros for wait/waitpid/wait3 */
+#ifndef WIFEXITED
+# define WIFEXITED(X) (((X)&0377)==0)
+#endif
+#ifndef WEXITSTATUS
+# define WEXITSTATUS(X) (((X)>>8)&0377)
+#endif
+#ifndef WIFSIGNALED
+# define WIFSIGNALED(X) (((X)&0377)!=0&&((X)&0377)!=0177)
+#endif
+#ifndef WTERMSIG
+# define WTERMSIG(X) ((X)&0177)
+#endif
+#ifndef WCOREDUMP
+# define WCOREDUMP(X) ((X)&0200)
+#endif
+#ifndef WIFSTOPPED
+# define WIFSTOPPED(X) (((X)&0377)==0177)
+#endif
+#ifndef WSTOPSIG
+# define WSTOPSIG(X) (((X)>>8)&0377)
+#endif
+
+#ifdef HAVE_SYS_SELECT_H
+# ifndef TIME_H_SELECT_H_CONFLICTS
+#  include <sys/select.h>
+# endif
+#endif
+
+#ifdef HAVE_SYS_FILIO_H
+# include <sys/filio.h>
+#endif
+
+#ifdef HAVE_TERMIOS_H
+# ifdef __sco
+   /* termios.h includes sys/termio.h instead of sys/termios.h; *
+    * hence the declaration for struct termios is missing       */
+#  include <sys/termios.h>
+# else
+#  include <termios.h>
+# endif
+# ifdef _POSIX_VDISABLE
+#  define VDISABLEVAL _POSIX_VDISABLE
+# else
+#  define VDISABLEVAL 0
+# endif
+# define HAS_TIO 1
+#else    /* not TERMIOS */
+# ifdef HAVE_TERMIO_H
+#  include <termio.h>
+#  define VDISABLEVAL -1
+#  define HAS_TIO 1
+# else   /* not TERMIOS and TERMIO */
+#  include <sgtty.h>
+# endif  /* HAVE_TERMIO_H  */
+#endif   /* HAVE_TERMIOS_H */
+
+#ifdef HAVE_TERMCAP_H
+# include <termcap.h>
+#endif
+
+#if defined(GWINSZ_IN_SYS_IOCTL) || defined(CLOBBERS_TYPEAHEAD)
+# include <sys/ioctl.h>
+#endif
+#ifdef WINSIZE_IN_PTEM
+# include <sys/stream.h>
+# include <sys/ptem.h>
+#endif
+
+#ifdef HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif
+
+#ifdef HAVE_SYS_UTSNAME_H
+# include <sys/utsname.h>
+#endif
+
+#define DEFAULT_WORDCHARS "*?_-.[]~=/&;!#$%^(){}<>"
+#define DEFAULT_TIMEFMT   "%J  %U user %S system %P cpu %*E total"
+
+/* Posix getpgrp takes no argument, while the BSD version *
+ * takes the process ID as an argument                    */
+#ifdef GETPGRP_VOID
+# define GETPGRP() getpgrp()
+#else
+# define GETPGRP() getpgrp(0)
+#endif
+
+#ifndef HAVE_GETLOGIN
+# define getlogin() cuserid(NULL)
+#endif
+
+#ifdef HAVE_SETPGID
+# define setpgrp setpgid
+#endif
+
+/* can we set the user/group id of a process */
+
+#ifndef HAVE_SETUID
+# ifdef HAVE_SETREUID
+#  define setuid(X) setreuid(X,X)
+#  define setgid(X) setregid(X,X)
+#  define HAVE_SETUID
+# endif
+#endif
+
+/* can we set the effective user/group id of a process */
+
+#ifndef HAVE_SETEUID
+# ifdef HAVE_SETREUID
+#  define seteuid(X) setreuid(-1,X)
+#  define setegid(X) setregid(-1,X)
+#  define HAVE_SETEUID
+# else
+#  ifdef HAVE_SETRESUID
+#   define seteuid(X) setresuid(-1,X,-1)
+#   define setegid(X) setresgid(-1,X,-1)
+#   define HAVE_SETEUID
+#  endif
+# endif
+#endif
+
+#ifdef HAVE_SYS_RESOURCE_H
+# include <sys/resource.h>
+# if defined(__hpux) && !defined(RLIMIT_CPU)
+/* HPUX does have the BSD rlimits in the kernel.  Officially they are *
+ * unsupported but quite a few of them like RLIMIT_CORE seem to work. *
+ * All the following are in the <sys/resource.h> but made visible     *
+ * only for the kernel.                                               */
+#  define	RLIMIT_CPU	0
+#  define	RLIMIT_FSIZE	1
+#  define	RLIMIT_DATA	2
+#  define	RLIMIT_STACK	3
+#  define	RLIMIT_CORE	4
+#  define	RLIMIT_RSS	5
+#  define	RLIMIT_NOFILE   6
+#  define	RLIMIT_OPEN_MAX	RLIMIT_NOFILE
+#  define	RLIM_NLIMITS	7
+#  define	RLIM_INFINITY	0x7fffffff
+# endif
+#endif
+
+/* we use the SVR4 constant instead of the BSD one */
+#if !defined(RLIMIT_NOFILE) && defined(RLIMIT_OFILE)
+# define RLIMIT_NOFILE RLIMIT_OFILE
+#endif
+#if !defined(RLIMIT_VMEM) && defined(RLIMIT_AS)
+# define RLIMIT_VMEM RLIMIT_AS
+#endif
+
+#ifdef HAVE_SYS_CAPABILITY_H
+# include <sys/capability.h>
+#endif
+
+/* DIGBUFSIZ is the length of a buffer which can hold the -LONG_MAX-1 *
+ * converted to printable decimal form including the sign and the     *
+ * terminating null character. Below 0.30103 > lg 2.                  */
+#define DIGBUFSIZE ((int)(((sizeof(long) * 8) - 1) * 0.30103) + 3)
+
+/* If your stat macros are broken, we will *
+ * just undefine them.                     */
+
+#ifdef STAT_MACROS_BROKEN
+# undef S_ISBLK
+# undef S_ISCHR
+# undef S_ISDIR
+# undef S_ISFIFO
+# undef S_ISLNK
+# undef S_ISMPB
+# undef S_ISMPC
+# undef S_ISNWK
+# undef S_ISOFD
+# undef S_ISOFL
+# undef S_ISREG
+# undef S_ISSOCK
+#endif  /* STAT_MACROS_BROKEN.  */
+
+/* If you are missing the stat macros, we *
+ * define our own                         */
+
+#ifndef S_IFMT
+# define S_IFMT 0170000
+#endif
+
+#if !defined(S_ISBLK) && defined(S_IFBLK)
+# define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
+#endif
+#if !defined(S_ISCHR) && defined(S_IFCHR)
+# define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
+#endif
+#if !defined(S_ISDIR) && defined(S_IFDIR)
+# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
+#endif
+#if !defined(S_ISFIFO) && defined(S_IFIFO)
+# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
+#endif
+#if !defined(S_ISLNK) && defined(S_IFLNK)
+# define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
+#endif
+#if !defined(S_ISMPB) && defined(S_IFMPB)        /* V7 */
+# define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
+#endif
+#if !defined(S_ISMPC) && defined(S_IFMPC)        /* V7 */
+# define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
+#endif
+#if !defined(S_ISNWK) && defined(S_IFNWK)        /* HP/UX */
+# define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
+#endif
+#if !defined(S_ISOFD) && defined(S_IFOFD)        /* Cray */
+# define S_ISOFD(m) (((m) & S_IFMT) == S_IFOFD)
+#endif
+#if !defined(S_ISOFL) && defined(S_IFOFL)        /* Cray */
+# define S_ISOFL(m) (((m) & S_IFMT) == S_IFOFL)
+#endif
+#if !defined(S_ISREG) && defined(S_IFREG)
+# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+#endif
+#if !defined(S_ISSOCK) && defined(S_IFSOCK)
+# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
+#endif
+
+/* We will pretend to have all file types on any system. */
+
+#ifndef S_ISBLK
+# define S_ISBLK(m) ((void)(m), 0)
+#endif
+#ifndef S_ISCHR
+# define S_ISCHR(m) ((void)(m), 0)
+#endif
+#ifndef S_ISDIR
+# define S_ISDIR(m) ((void)(m), 0)
+#endif
+#ifndef S_ISFIFO
+# define S_ISFIFO(m) ((void)(m), 0)
+#endif
+#ifndef S_ISLNK
+# define S_ISLNK(m) ((void)(m), 0)
+#endif
+#ifndef S_ISMPB
+# define S_ISMPB(m) ((void)(m), 0)
+#endif
+#ifndef S_ISMPC
+# define S_ISMPC(m) ((void)(m), 0)
+#endif
+#ifndef S_ISNWK
+# define S_ISNWK(m) ((void)(m), 0)
+#endif
+#ifndef S_ISOFD
+# define S_ISOFD(m) ((void)(m), 0)
+#endif
+#ifndef S_ISOFL
+# define S_ISOFL(m) ((void)(m), 0)
+#endif
+#ifndef S_ISREG
+# define S_ISREG(m) ((void)(m), 0)
+#endif
+#ifndef S_ISSOCK
+# define S_ISSOCK(m) ((void)(m), 0)
+#endif
+
+/* file mode permission bits */
+
+#ifndef S_ISUID
+# define S_ISUID 04000
+#endif
+#ifndef S_ISGID
+# define S_ISGID 02000
+#endif
+#ifndef S_ISVTX
+# define S_ISVTX 01000
+#endif
+#ifndef S_IRUSR
+# define S_IRUSR 00400
+#endif
+#ifndef S_IWUSR
+# define S_IWUSR 00200
+#endif
+#ifndef S_IXUSR
+# define S_IXUSR 00100
+#endif
+#ifndef S_IRGRP
+# define S_IRGRP 00040
+#endif
+#ifndef S_IWGRP
+# define S_IWGRP 00020
+#endif
+#ifndef S_IXGRP
+# define S_IXGRP 00010
+#endif
+#ifndef S_IROTH
+# define S_IROTH 00004
+#endif
+#ifndef S_IWOTH
+# define S_IWOTH 00002
+#endif
+#ifndef S_IXOTH
+# define S_IXOTH 00001
+#endif
+#ifndef S_IRWXU
+# define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
+#endif
+#ifndef S_IRWXG
+# define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
+#endif
+#ifndef S_IRWXO
+# define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
+#endif
+#ifndef S_IRUGO
+# define S_IRUGO (S_IRUSR|S_IRGRP|S_IROTH)
+#endif
+#ifndef S_IWUGO
+# define S_IWUGO (S_IWUSR|S_IWGRP|S_IWOTH)
+#endif
+#ifndef S_IXUGO
+# define S_IXUGO (S_IXUSR|S_IXGRP|S_IXOTH)
+#endif
+
+#ifndef HAVE_LSTAT
+# define lstat stat
+#endif
+
+#ifndef HAVE_READLINK
+# define readlink(PATH, BUF, BUFSZ) \
+    ((void)(PATH), (void)(BUF), (void)(BUFSZ), errno = ENOSYS, -1)
+#endif
+
+#ifndef F_OK          /* missing macros for access() */
+# define F_OK 0
+# define X_OK 1
+# define W_OK 2
+# define R_OK 4
+#endif
+
+#ifndef HAVE_MEMCPY
+# define memcpy memmove
+#endif
+
+#ifndef HAVE_MEMMOVE
+# define memmove(dest, src, len) bcopy((src), (dest), (len))
+#endif
+
+#ifndef offsetof
+# define offsetof(TYPE, MEM) ((char *)&((TYPE *)0)->MEM - (char *)(TYPE *)0)
+#endif
+
+extern char **environ;
+
+/* These variables are sometimes defined in, *
+ * and needed by, the termcap library.       */
+#if MUST_DEFINE_OSPEED
+extern char PC, *BC, *UP;
+extern short ospeed;
+#endif
+
+#ifndef O_NOCTTY
+# define O_NOCTTY 0
+#endif