-/* $OpenBSD: sh.h,v 1.30 2010/01/04 18:07:11 deraadt Exp $ */
+/* $OpenBSD: sh.h,v 1.35 2015/09/10 22:48:58 nicm Exp $ */
/* $OpenBSD: shf.h,v 1.6 2005/12/11 18:53:51 deraadt Exp $ */
-/* $OpenBSD: table.h,v 1.7 2005/12/11 20:31:21 otto Exp $ */
+/* $OpenBSD: table.h,v 1.8 2012/02/19 07:52:30 otto Exp $ */
/* $OpenBSD: tree.h,v 1.10 2005/03/28 21:28:22 deraadt Exp $ */
-/* $OpenBSD: expand.h,v 1.6 2005/03/30 17:16:37 deraadt Exp $ */
-/* $OpenBSD: lex.h,v 1.11 2006/05/29 18:22:24 otto Exp $ */
-/* $OpenBSD: proto.h,v 1.33 2010/05/19 17:36:08 jasper Exp $ */
+/* $OpenBSD: expand.h,v 1.7 2015/09/01 13:12:31 tedu Exp $ */
+/* $OpenBSD: lex.h,v 1.13 2013/03/03 19:11:34 guenther Exp $ */
+/* $OpenBSD: proto.h,v 1.35 2013/09/04 15:49:19 millert Exp $ */
/* $OpenBSD: c_test.h,v 1.4 2004/12/20 11:34:26 otto Exp $ */
/* $OpenBSD: tty.h,v 1.5 2004/12/20 11:34:26 otto Exp $ */
/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
- * Thorsten Glaser <tg@mirbsd.org>
+ * Copyright © 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ * 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
+ * mirabilos <m@mirbsd.org>
*
* Provided that these terms and disclaimer and all copyright notices
* are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
+ * is granted to deal in this work without restriction, including un‐
* limited rights to use, publicly perform, distribute, sell, modify,
* merge, give away, or sublicence.
*
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to
* the utmost extent permitted by applicable law, neither express nor
* implied; without malicious intent or gross negligence. In no event
* may a licensor, author or contributor be held liable for indirect,
* direct, other damage, loss, or other issues arising in any way out
* of dealing in the work, even if advised of the possibility of such
* damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
+ * of said person’s immediate fault when using the work as intended.
*/
#ifdef __dietlibc__
/* XXX imake style */
-#define _BSD_SOURCE /* live, BSD, live! */
+#define _BSD_SOURCE /* live, BSD, live❣ */
#endif
#if HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#include <sys/types.h>
+#if HAVE_BOTH_TIME_H
#include <sys/time.h>
+#include <time.h>
+#elif HAVE_SYS_TIME_H
+#include <sys/time.h>
+#elif HAVE_TIME_H
+#include <time.h>
+#endif
#include <sys/ioctl.h>
#if HAVE_SYS_SYSMACROS_H
#include <sys/sysmacros.h>
#if HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
+#if HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
+#endif
#include <sys/stat.h>
#include <sys/wait.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
+#if HAVE_IO_H
+#include <io.h>
+#endif
#if HAVE_LIBGEN_H
#include <libgen.h>
#endif
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
-#if HAVE_STDBOOL_H
-#include <stdbool.h>
-#endif
#include <stddef.h>
#if HAVE_STDINT_H
#include <stdint.h>
#if HAVE_STRINGS_H
#include <strings.h>
#endif
+#if HAVE_TERMIOS_H
#include <termios.h>
-#include <time.h>
+#else
+/* shudder… */
+#include <termio.h>
+#endif
+#ifdef _ISC_UNIX
+/* XXX imake style */
+#include <sys/sioctl.h>
+#endif
#if HAVE_ULIMIT_H
#include <ulimit.h>
#endif
#if HAVE_VALUES_H
#include <values.h>
#endif
+#ifdef MIRBSD_BOOTFLOPPY
+#include <wchar.h>
+#endif
+
+/* monkey-patch known-bad offsetof versions to quell a warning */
+#if (defined(__KLIBC__) || defined(__dietlibc__)) && \
+ ((defined(__GNUC__) && (__GNUC__ > 3)) || defined(__NWCC__))
+#undef offsetof
+#define offsetof(s, e) __builtin_offsetof(s, e)
+#endif
#undef __attribute__
#if HAVE_ATTRIBUTE_BOUNDED
-#define MKSH_A_BOUNDED(x,y,z) __attribute__((bounded (x, y, z)))
+#define MKSH_A_BOUNDED(x,y,z) __attribute__((__bounded__(x, y, z)))
#else
#define MKSH_A_BOUNDED(x,y,z) /* nothing */
#endif
#if HAVE_ATTRIBUTE_FORMAT
-#define MKSH_A_FORMAT(x,y,z) __attribute__((format (x, y, z)))
+#define MKSH_A_FORMAT(x,y,z) __attribute__((__format__(x, y, z)))
#else
#define MKSH_A_FORMAT(x,y,z) /* nothing */
#endif
-#if HAVE_ATTRIBUTE_NONNULL
-#define MKSH_A_NONNULL(a) __attribute__(a)
-#else
-#define MKSH_A_NONNULL(a) /* nothing */
-#endif
#if HAVE_ATTRIBUTE_NORETURN
-#define MKSH_A_NORETURN __attribute__((noreturn))
+#define MKSH_A_NORETURN __attribute__((__noreturn__))
#else
#define MKSH_A_NORETURN /* nothing */
#endif
+#if HAVE_ATTRIBUTE_PURE
+#define MKSH_A_PURE __attribute__((__pure__))
+#else
+#define MKSH_A_PURE /* nothing */
+#endif
#if HAVE_ATTRIBUTE_UNUSED
-#define MKSH_A_UNUSED __attribute__((unused))
+#define MKSH_A_UNUSED __attribute__((__unused__))
#else
#define MKSH_A_UNUSED /* nothing */
#endif
#if HAVE_ATTRIBUTE_USED
-#define MKSH_A_USED __attribute__((used))
+#define MKSH_A_USED __attribute__((__used__))
#else
#define MKSH_A_USED /* nothing */
#endif
#undef __SCCSID
#define __IDSTRING_CONCAT(l,p) __LINTED__ ## l ## _ ## p
#define __IDSTRING_EXPAND(l,p) __IDSTRING_CONCAT(l,p)
+#ifdef MKSH_DONT_EMIT_IDSTRING
+#define __IDSTRING(prefix, string) /* nothing */
+#else
#define __IDSTRING(prefix, string) \
static const char __IDSTRING_EXPAND(__LINE__,prefix) [] \
MKSH_A_USED = "@(""#)" #prefix ": " string
+#endif
#define __COPYRIGHT(x) __IDSTRING(copyright,x)
#define __RCSID(x) __IDSTRING(rcsid,x)
#define __SCCSID(x) __IDSTRING(sccsid,x)
#endif
#ifdef EXTERN
-__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.405 2010/08/24 15:19:54 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.858 2018/01/14 01:47:36 tg Exp $");
#endif
-#define MKSH_VERSION "R39 2010/08/24"
+#define MKSH_VERSION "R56 2018/01/14"
-#ifndef MKSH_INCLUDES_ONLY
-
-/* extra types */
+/* arithmetic types: C implementation */
+#if !HAVE_CAN_INTTYPES
+#if !HAVE_CAN_UCBINTS
+typedef signed int int32_t;
+typedef unsigned int uint32_t;
+#else
+typedef u_int32_t uint32_t;
+#endif
+#endif
-#if !HAVE_GETRUSAGE
-#undef rusage
-#undef RUSAGE_SELF
-#undef RUSAGE_CHILDREN
-#define rusage mksh_rusage
-#define RUSAGE_SELF 0
-#define RUSAGE_CHILDREN -1
+/* arithmetic types: shell arithmetics */
+#ifdef MKSH_LEGACY_MODE
+/*
+ * POSIX demands these to be the C environment's long type
+ */
+typedef long mksh_ari_t;
+typedef unsigned long mksh_uari_t;
+#else
+/*
+ * These types are exactly 32 bit wide; signed and unsigned
+ * integer wraparound, even across division and modulo, for
+ * any shell code using them, is guaranteed.
+ */
+typedef int32_t mksh_ari_t;
+typedef uint32_t mksh_uari_t;
+#endif
-struct rusage {
- struct timeval ru_utime;
- struct timeval ru_stime;
-};
+/* boolean type (no <stdbool.h> deliberately) */
+typedef unsigned char mksh_bool;
+#undef bool
+/* false MUST equal the same 0 as written by static storage initialisation */
+#undef false
+#undef true
+/* access macros for boolean type */
+#define bool mksh_bool
+/* values must have identity mapping between mksh_bool and short */
+#define false 0
+#define true 1
+/* make any-type into bool or short */
+#define tobool(cond) ((cond) ? true : false)
+
+/* char (octet) type: C implementation */
+#if !HAVE_CAN_INT8TYPE
+#if !HAVE_CAN_UCBINT8
+typedef unsigned char uint8_t;
+#else
+typedef u_int8_t uint8_t;
+#endif
#endif
+/* other standard types */
+
#if !HAVE_RLIM_T
-typedef long rlim_t;
+typedef unsigned long rlim_t;
#endif
#if !HAVE_SIG_T
typedef void (*sig_t)(int);
#endif
-#if !HAVE_STDBOOL_H
-/* kludge, but enough for mksh */
-typedef int bool;
-#define false 0
-#define true 1
+#ifdef MKSH_TYPEDEF_SIG_ATOMIC_T
+typedef MKSH_TYPEDEF_SIG_ATOMIC_T sig_atomic_t;
#endif
-#if !HAVE_CAN_INTTYPES
-#if !HAVE_CAN_UCBINTS
-typedef signed int int32_t;
-typedef unsigned int uint32_t;
-#else
-typedef u_int32_t uint32_t;
-#endif
+#ifdef MKSH_TYPEDEF_SSIZE_T
+typedef MKSH_TYPEDEF_SSIZE_T ssize_t;
#endif
-#if !HAVE_CAN_INT8TYPE
-#if !HAVE_CAN_UCBINT8
-typedef unsigned char uint8_t;
-#else
-typedef u_int8_t uint8_t;
+/* un-do vendor damage */
+
+#undef BAD /* AIX defines that somewhere */
+#undef PRINT /* LynxOS defines that somewhere */
+#undef flock /* SCO UnixWare defines that to flock64 but ENOENT */
+
+
+#ifndef MKSH_INCLUDES_ONLY
+
+/* EBCDIC fun */
+
+/* see the large comment in shf.c for an EBCDIC primer */
+
+#if defined(MKSH_FOR_Z_OS) && defined(__MVS__) && defined(__IBMC__) && defined(__CHARSET_LIB)
+# if !__CHARSET_LIB && !defined(MKSH_EBCDIC)
+# error "Please compile with Build.sh -E for EBCDIC!"
+# endif
+# if __CHARSET_LIB && defined(MKSH_EBCDIC)
+# error "Please compile without -E argument to Build.sh for ASCII!"
+# endif
+# if __CHARSET_LIB && !defined(_ENHANCED_ASCII_EXT)
+ /* go all-out on ASCII */
+# define _ENHANCED_ASCII_EXT 0xFFFFFFFF
+# endif
#endif
+
+/* extra types */
+
+/* getrusage does not exist on OS/2 kLIBC */
+#if !HAVE_GETRUSAGE && !defined(__OS2__)
+#undef rusage
+#undef RUSAGE_SELF
+#undef RUSAGE_CHILDREN
+#define rusage mksh_rusage
+#define RUSAGE_SELF 0
+#define RUSAGE_CHILDREN -1
+
+struct rusage {
+ struct timeval ru_utime;
+ struct timeval ru_stime;
+};
#endif
/* extra macros */
} while (/* CONSTCOND */ 0)
#endif
-#define ksh_isdigit(c) (((c) >= '0') && ((c) <= '9'))
-#define ksh_islower(c) (((c) >= 'a') && ((c) <= 'z'))
-#define ksh_isupper(c) (((c) >= 'A') && ((c) <= 'Z'))
-#define ksh_tolower(c) (((c) >= 'A') && ((c) <= 'Z') ? (c) - 'A' + 'a' : (c))
-#define ksh_toupper(c) (((c) >= 'a') && ((c) <= 'z') ? (c) - 'a' + 'A' : (c))
-#define ksh_isdash(s) (((s) != NULL) && ((s)[0] == '-') && ((s)[1] == '\0'))
-#define ksh_isspace(c) ((((c) >= 0x09) && ((c) <= 0x0D)) || ((c) == 0x20))
-
-#ifdef NO_PATH_MAX
+#ifdef MKSH__NO_PATH_MAX
#undef PATH_MAX
#else
#ifndef PATH_MAX
+#ifdef MAXPATHLEN
+#define PATH_MAX MAXPATHLEN
+#else
#define PATH_MAX 1024
#endif
#endif
+#endif
#ifndef SIZE_MAX
#ifdef SIZE_T_MAX
#define SIZE_MAX SIZE_T_MAX
#ifndef S_ISSOCK
#define S_ISSOCK(m) ((m & 0170000) == 0140000)
#endif
+#if !defined(S_ISCDF) && defined(S_CDF)
+#define S_ISCDF(m) (S_ISDIR(m) && ((m) & S_CDF))
+#endif
#ifndef DEFFILEMODE
#define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
#endif
-#if !defined(MAP_FAILED)
-/* XXX imake style */
-# if defined(__linux)
-#define MAP_FAILED ((void *)-1)
-# elif defined(__bsdi__) || defined(__osf__) || defined(__ultrix)
-#define MAP_FAILED ((caddr_t)-1)
-# endif
-#endif
-#ifndef NSIG
-#if defined(_NSIG)
-#define NSIG _NSIG
+/* determine ksh_NSIG: first, use the traditional definitions */
+#undef ksh_NSIG
+#if defined(NSIG)
+#define ksh_NSIG (NSIG)
+#elif defined(_NSIG)
+#define ksh_NSIG (_NSIG)
#elif defined(SIGMAX)
-#define NSIG (SIGMAX+1)
+#define ksh_NSIG (SIGMAX + 1)
+#elif defined(_SIGMAX)
+#define ksh_NSIG (_SIGMAX + 1)
+#elif defined(NSIG_MAX)
+#define ksh_NSIG (NSIG_MAX)
+#elif defined(MKSH_FOR_Z_OS)
+#define ksh_NSIG 40
+#else
+# error Please have your platform define NSIG.
+#endif
+/* range-check them */
+#if (ksh_NSIG < 1)
+# error Your NSIG value is not positive.
+#undef ksh_NSIG
+#endif
+/* second, see if the new POSIX definition is available */
+#ifdef NSIG_MAX
+#if (NSIG_MAX < 2)
+/* and usable */
+# error Your NSIG_MAX value is too small.
+#undef NSIG_MAX
+#elif (ksh_NSIG > NSIG_MAX)
+/* and realistic */
+# error Your NSIG value is larger than your NSIG_MAX value.
+#undef NSIG_MAX
+#else
+/* since it’s usable, prefer it */
+#undef ksh_NSIG
+#define ksh_NSIG (NSIG_MAX)
+#endif
+/* if NSIG_MAX is now still defined, use sysconf(_SC_NSIG) at runtime */
#endif
+/* third, for cpp without the error directive, default */
+#ifndef ksh_NSIG
+#define ksh_NSIG 64
#endif
-#undef BAD /* AIX defines that somewhere */
+#define ksh_sigmask(sig) (((sig) < 1 || (sig) > 127) ? 255 : 128 + (sig))
+
/* OS-dependent additions (functions, variables, by OS) */
+#ifdef MKSH_EXE_EXT
+#undef MKSH_EXE_EXT
+#define MKSH_EXE_EXT ".exe"
+#else
+#define MKSH_EXE_EXT ""
+#endif
+
+#ifdef __OS2__
+#define MKSH_UNIXROOT "/@unixroot"
+#else
+#define MKSH_UNIXROOT ""
+#endif
+
+#ifdef MKSH_DOSPATH
+#ifndef __GNUC__
+# error GCC extensions needed later on
+#endif
+#define MKSH_PATHSEPS ";"
+#define MKSH_PATHSEPC ';'
+#else
+#define MKSH_PATHSEPS ":"
+#define MKSH_PATHSEPC ':'
+#endif
+
#if !HAVE_FLOCK_DECL
extern int flock(int, int);
#endif
-#if !HAVE_GETRUSAGE
-extern int getrusage(int, struct rusage *);
+#if !HAVE_GETTIMEOFDAY
+#define mksh_TIME(tv) do { \
+ (tv).tv_usec = 0; \
+ (tv).tv_sec = time(NULL); \
+} while (/* CONSTCOND */ 0)
+#else
+#define mksh_TIME(tv) gettimeofday(&(tv), NULL)
#endif
-#if !HAVE_REVOKE_DECL
-extern int revoke(const char *);
+#if !HAVE_GETRUSAGE
+extern int getrusage(int, struct rusage *);
#endif
-#if !HAVE_SETMODE
-mode_t getmode(const void *, mode_t);
-void *setmode(const char *);
+#if !HAVE_MEMMOVE
+/* we assume either memmove or bcopy exist, at the moment */
+#define memmove(dst, src, len) bcopy((src), (dst), (len))
#endif
-#ifdef __ultrix
-/* XXX imake style */
-int strcasecmp(const char *, const char *);
+#if !HAVE_REVOKE_DECL
+extern int revoke(const char *);
#endif
-#if !HAVE_STRCASESTR
-const char *stristr(const char *, const char *);
+#if defined(DEBUG) || !HAVE_STRERROR
+#undef strerror
+#define strerror /* poisoned */ dontuse_strerror
+#define cstrerror /* replaced */ cstrerror
+extern const char *cstrerror(int);
+#else
+#define cstrerror(errnum) ((const char *)strerror(errnum))
#endif
#if !HAVE_STRLCPY
size_t strlcpy(char *, const char *, size_t);
#endif
-#if !HAVE_SYS_SIGLIST_DECL
-extern const char *const sys_siglist[];
-#endif
-
#ifdef __INTERIX
/* XXX imake style */
#define makedev mkdev
extern int __cdecl setegid(gid_t);
#endif
-/* remove redundances */
+#if defined(__COHERENT__)
+#ifndef O_ACCMODE
+/* this need not work everywhere, take care */
+#define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR)
+#endif
+#endif
-#if defined(MirBSD) && (MirBSD >= 0x08A8)
-#define MKSH_mirbsd_wcwidth
-#define utf_wcwidth(i) wcwidth((__WCHAR_TYPE__)i)
-extern int wcwidth(__WCHAR_TYPE__);
+#ifndef O_BINARY
+#define O_BINARY 0
#endif
+#ifdef MKSH__NO_SYMLINK
+#undef S_ISLNK
+#define S_ISLNK(m) (/* CONSTCOND */ 0)
+#define mksh_lstat stat
+#else
+#define mksh_lstat lstat
+#endif
-/* some useful #defines */
-#ifdef EXTERN
-# define I__(i) = i
+#if HAVE_TERMIOS_H
+#define mksh_ttyst struct termios
+#define mksh_tcget(fd,st) tcgetattr((fd), (st))
+#define mksh_tcset(fd,st) tcsetattr((fd), TCSADRAIN, (st))
#else
-# define I__(i)
-# define EXTERN extern
-# define EXTERN_DEFINED
+#define mksh_ttyst struct termio
+#define mksh_tcget(fd,st) ioctl((fd), TCGETA, (st))
+#define mksh_tcset(fd,st) ioctl((fd), TCSETAW, (st))
#endif
-#define NELEM(a) (sizeof(a) / sizeof((a)[0]))
-#define BIT(i) (1 << (i)) /* define bit in flag */
+#ifndef ISTRIP
+#define ISTRIP 0
+#endif
-/* Table flag type - needs > 16 and < 32 bits */
-typedef int32_t Tflag;
+#ifdef MKSH_EBCDIC
+#define KSH_BEL '\a'
+#define KSH_ESC 047
+#define KSH_ESC_STRING "\047"
+#define KSH_VTAB '\v'
+#else
+/*
+ * According to the comments in pdksh, \007 seems to be more portable
+ * than \a (HP-UX cc, Ultrix cc, old pcc, etc.) so we avoid the escape
+ * sequence if ASCII can be assumed.
+ */
+#define KSH_BEL 7
+#define KSH_ESC 033
+#define KSH_ESC_STRING "\033"
+#define KSH_VTAB 11
+#endif
-/* arithmetics types */
-typedef int32_t mksh_ari_t;
-typedef uint32_t mksh_uari_t;
-/* these shall be smaller than 100 */
-#ifdef MKSH_CONSERVATIVE_FDS
-#define NUFILE 32 /* Number of user-accessible files */
-#define FDBASE 10 /* First file usable by Shell */
+/* some useful #defines */
+#ifdef EXTERN
+# define E_INIT(i) = i
#else
-#define NUFILE 56 /* Number of user-accessible files */
-#define FDBASE 24 /* First file usable by Shell */
+# define E_INIT(i)
+# define EXTERN extern
+# define EXTERN_DEFINED
#endif
-/* Make MAGIC a char that might be printed to make bugs more obvious, but
+/* define bit in flag */
+#define BIT(i) (1U << (i))
+#define NELEM(a) (sizeof(a) / sizeof((a)[0]))
+
+/*
+ * Make MAGIC a char that might be printed to make bugs more obvious, but
* not a char that is used often. Also, can't use the high bit as it causes
- * portability problems (calling strchr(x, 0x80|'x') is error prone).
+ * portability problems (calling strchr(x, 0x80 | 'x') is error prone).
+ *
+ * MAGIC can be followed by MAGIC (to escape the octet itself) or one of:
+ * ' !)*,-?[]{|}' 0x80|' !*+?@' (probably… hysteric raisins abound)
+ *
+ * The |0x80 is likely unsafe on EBCDIC :( though the listed chars are
+ * low-bit7 at least on cp1047 so YMMV
*/
-#define MAGIC (7) /* prefix for *?[!{,} during expand */
-#define ISMAGIC(c) ((unsigned char)(c) == MAGIC)
-#define NOT '!' /* might use ^ (ie, [!...] vs [^..]) */
-
-#define LINE 4096 /* input line size */
+#define MAGIC KSH_BEL /* prefix for *?[!{,} during expand */
+#define ISMAGIC(c) (ord(c) == ORD(MAGIC))
EXTERN const char *safe_prompt; /* safe prompt if PS1 substitution fails */
-EXTERN const char initvsn[] I__("KSH_VERSION=@(#)MIRBSD KSH " MKSH_VERSION);
+
+#ifdef MKSH_LEGACY_MODE
+#define KSH_VERSIONNAME_ISLEGACY "LEGACY"
+#else
+#define KSH_VERSIONNAME_ISLEGACY "MIRBSD"
+#endif
+#ifdef MKSH_WITH_TEXTMODE
+#define KSH_VERSIONNAME_TEXTMODE " +TEXTMODE"
+#else
+#define KSH_VERSIONNAME_TEXTMODE ""
+#endif
+#ifdef MKSH_EBCDIC
+#define KSH_VERSIONNAME_EBCDIC " +EBCDIC"
+#else
+#define KSH_VERSIONNAME_EBCDIC ""
+#endif
+#ifndef KSH_VERSIONNAME_VENDOR_EXT
+#define KSH_VERSIONNAME_VENDOR_EXT ""
+#endif
+EXTERN const char initvsn[] E_INIT("KSH_VERSION=@(#)" KSH_VERSIONNAME_ISLEGACY \
+ " KSH " MKSH_VERSION KSH_VERSIONNAME_EBCDIC KSH_VERSIONNAME_TEXTMODE \
+ KSH_VERSIONNAME_VENDOR_EXT);
#define KSH_VERSION (initvsn + /* "KSH_VERSION=@(#)" */ 16)
-EXTERN const char digits_uc[] I__("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ");
-EXTERN const char digits_lc[] I__("0123456789abcdefghijklmnopqrstuvwxyz");
+EXTERN const char digits_uc[] E_INIT("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ");
+EXTERN const char digits_lc[] E_INIT("0123456789abcdefghijklmnopqrstuvwxyz");
/*
* Evil hack for const correctness due to API brokenness
const char **ro;
};
+/*
+ * Evil hack since casting uint to sint is implementation-defined
+ */
+typedef union {
+ mksh_ari_t i;
+ mksh_uari_t u;
+} mksh_ari_u;
+
/* for const debugging */
#if defined(DEBUG) && defined(__GNUC__) && !defined(__ICC) && \
!defined(__INTEL_COMPILER) && !defined(__SUNPRO_C)
})
#define vstrchr(s,c) (cstrchr((s), (c)) != NULL)
#define vstrstr(b,l) (cstrstr((b), (l)) != NULL)
-#define mkssert(e) ((e) ? (void)0 : exit(255))
#else /* !DEBUG, !gcc */
#define cstrchr(s,c) ((const char *)strchr((s), (c)))
#define cstrstr(s,c) ((const char *)strstr((s), (c)))
#define vstrchr(s,c) (strchr((s), (c)) != NULL)
#define vstrstr(b,l) (strstr((b), (l)) != NULL)
-#define mkssert(e) ((void)0)
+#endif
+
+#if defined(DEBUG) || defined(__COVERITY__)
+#ifndef DEBUG_LEAKS
+#define DEBUG_LEAKS
+#endif
+#endif
+
+#if (!defined(MKSH_BUILDMAKEFILE4BSD) && !defined(MKSH_BUILDSH)) || (MKSH_BUILD_R != 563)
+#error Must run Build.sh to compile this.
+extern void thiswillneverbedefinedIhope(void);
+int
+im_sorry_dave(void)
+{
+ /* I’m sorry, Dave. I’m afraid I can’t do that. */
+ return (thiswillneverbedefinedIhope());
+}
#endif
/* use this ipv strchr(s, 0) but no side effects in s! */
-#define strnul(s) ((s) + strlen(s))
+#define strnul(s) ((s) + strlen((const void *)s))
#define utf_ptradjx(src, dst) do { \
(dst) = (src) + utf_ptradj(src); \
} while (/* CONSTCOND */ 0)
-#ifdef MKSH_SMALL
-#define strdupx(d, s, ap) do { \
- (d) = strdup_((s), (ap)); \
+#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
+#define strdupx(d, s, ap) do { \
+ (d) = strdup_i((s), (ap)); \
} while (/* CONSTCOND */ 0)
-#define strndupx(d, s, n, ap) do { \
- (d) = strndup_((s), (n), (ap)); \
+#define strndupx(d, s, n, ap) do { \
+ (d) = strndup_i((s), (n), (ap)); \
} while (/* CONSTCOND */ 0)
#else
/* be careful to evaluate arguments only once! */
#define strdupx(d, s, ap) do { \
- const char *strdup_src = (s); \
+ const char *strdup_src = (const void *)(s); \
char *strdup_dst = NULL; \
\
if (strdup_src != NULL) { \
(d) = strdup_dst; \
} while (/* CONSTCOND */ 0)
#define strndupx(d, s, n, ap) do { \
- const char *strdup_src = (s); \
+ const char *strdup_src = (const void *)(s); \
char *strdup_dst = NULL; \
\
if (strdup_src != NULL) { \
} while (/* CONSTCOND */ 0)
#endif
-#if HAVE_STRCASESTR
-#define stristr(b,l) ((const char *)strcasestr((b), (l)))
-#endif
-
#ifdef MKSH_SMALL
-#ifndef MKSH_CONSERVATIVE_FDS
-#define MKSH_CONSERVATIVE_FDS /* defined */
-#endif
#ifndef MKSH_NOPWNAM
#define MKSH_NOPWNAM /* defined */
#endif
#define MKSH_S_NOVI 0
#endif
+#if defined(MKSH_NOPROSPECTOFWORK) && !defined(MKSH_UNEMPLOYED)
+#define MKSH_UNEMPLOYED 1
+#endif
+
+#define NUFILE 32 /* Number of user-accessible files */
+#define FDBASE 10 /* First file usable by Shell */
+
/*
* simple grouping allocator
*/
+
+/* 0. OS API: where to get memory from and how to free it (grouped) */
+
+/* malloc(3)/realloc(3) -> free(3) for use by the memory allocator */
+#define malloc_osi(sz) malloc(sz)
+#define realloc_osi(p,sz) realloc((p), (sz))
+#define free_osimalloc(p) free(p)
+
+/* malloc(3)/realloc(3) -> free(3) for use by mksh code */
+#define malloc_osfunc(sz) malloc(sz)
+#define realloc_osfunc(p,sz) realloc((p), (sz))
+#define free_osfunc(p) free(p)
+
+#if HAVE_MKNOD
+/* setmode(3) -> free(3) */
+#define free_ossetmode(p) free(p)
+#endif
+
+#ifdef MKSH__NO_PATH_MAX
+/* GNU libc: get_current_dir_name(3) -> free(3) */
+#define free_gnu_gcdn(p) free(p)
+#endif
+
+
/* 1. internal structure */
-struct lalloc {
- struct lalloc *next;
+struct lalloc_common {
+ struct lalloc_common *next;
};
+#ifdef MKSH_ALLOC_CATCH_UNDERRUNS
+struct lalloc_item {
+ struct lalloc_common *next;
+ size_t len;
+ char dummy[8192 - sizeof(struct lalloc_common *) - sizeof(size_t)];
+};
+#endif
+
/* 2. sizes */
-#define ALLOC_ITEM struct lalloc
-#define ALLOC_SIZE (sizeof(ALLOC_ITEM))
+#ifdef MKSH_ALLOC_CATCH_UNDERRUNS
+#define ALLOC_ITEM struct lalloc_item
+#define ALLOC_OVERHEAD 0
+#else
+#define ALLOC_ITEM struct lalloc_common
+#define ALLOC_OVERHEAD (sizeof(ALLOC_ITEM))
+#endif
-/* 3. group structure (only the same for lalloc.c) */
-typedef struct lalloc Area;
+/* 3. group structure */
+typedef struct lalloc_common Area;
EXTERN Area aperm; /* permanent object space */
*/
enum sh_flag {
#define SHFLAGS_ENUMS
-#include "sh_flags.h"
+#include "sh_flags.gen"
FNFLAGS /* (place holder: how many flags are there) */
};
-#define Flag(f) (kshstate_v.shell_flags_[(int)(f)])
+#define Flag(f) (shell_flags[(int)(f)])
#define UTFMODE Flag(FUNICODE)
/*
* parsing & execution environment
+ *
+ * note that kshlongjmp MUST NOT be passed 0 as second argument!
*/
+#ifdef MKSH_NO_SIGSETJMP
+#define kshjmp_buf jmp_buf
+#define kshsetjmp(jbuf) _setjmp(jbuf)
+#define kshlongjmp _longjmp
+#else
+#define kshjmp_buf sigjmp_buf
+#define kshsetjmp(jbuf) sigsetjmp((jbuf), 0)
+#define kshlongjmp siglongjmp
+#endif
+
+struct sretrace_info;
+struct yyrecursive_state;
+
+EXTERN struct sretrace_info *retrace_info;
+EXTERN unsigned int subshell_nesting_type;
+
extern struct env {
- ALLOC_ITEM __alloc_i; /* internal, do not touch */
+ ALLOC_ITEM alloc_INT; /* internal, do not touch */
Area area; /* temporary allocation area */
struct env *oenv; /* link to previous environment */
struct block *loc; /* local variables and functions */
short *savefd; /* original redirected fds */
struct temp *temps; /* temp files */
- sigjmp_buf jbuf; /* long jump back to env creator */
- short type; /* environment type - see below */
- short flags; /* EF_* */
+ /* saved parser recursion state */
+ struct yyrecursive_state *yyrecursive_statep;
+ kshjmp_buf jbuf; /* long jump back to env creator */
+ uint8_t type; /* environment type - see below */
+ uint8_t flags; /* EF_* */
} *e;
/* struct env.type values */
#define E_EXEC 4 /* executing command tree */
#define E_LOOP 5 /* executing for/while # */
#define E_ERRH 6 /* general error handler # */
+#define E_GONE 7 /* hidden in child */
+#define E_EVAL 8 /* running eval # */
/* # indicates env has valid jbuf (see unwind()) */
/* struct env.flag values */
-#define EF_FUNC_PARSE BIT(0) /* function being parsed */
#define EF_BRKCONT_PASS BIT(1) /* set if E_LOOP must pass break/continue on */
#define EF_FAKE_SIGDIE BIT(2) /* hack to get info from unwind to quitenv */
/* Do breaks/continues stop at env type e? */
-#define STOP_BRKCONT(t) ((t) == E_NONE || (t) == E_PARSE \
- || (t) == E_FUNC || (t) == E_INCL)
+#define STOP_BRKCONT(t) ((t) == E_NONE || (t) == E_PARSE || \
+ (t) == E_FUNC || (t) == E_INCL)
/* Do returns stop at env type e? */
#define STOP_RETURN(t) ((t) == E_FUNC || (t) == E_INCL)
-/* values for siglongjmp(e->jbuf, 0) */
+/* values for kshlongjmp(e->jbuf, i) */
+/* note that i MUST NOT be zero */
#define LRETURN 1 /* return statement */
#define LEXIT 2 /* exit statement */
#define LERROR 3 /* errorf() called */
#define LSHELL 8 /* return to interactive shell() */
#define LAEXPR 9 /* error in arithmetic expression */
-/*
- * some kind of global shell state, for change_random() mostly
- */
-
-EXTERN struct mksh_kshstate_v {
- /* for change_random */
- struct timeval cr_tv; /* timestamp */
- const void *cr_dp; /* argument address */
- size_t cr_dsz; /* argument length */
- uint32_t lcg_state_; /* previous LCG state */
- /* global state */
- pid_t procpid_; /* PID of executing process */
- int exstat_; /* exit status */
- int subst_exstat_; /* exit status of last $(..)/`..` */
- struct env env_; /* top-level parsing & execution env. */
- uint8_t shell_flags_[FNFLAGS];
-} kshstate_v;
-EXTERN struct mksh_kshstate_f {
- const char *kshname_; /* $0 */
- pid_t kshpid_; /* $$, shell PID */
- pid_t kshpgrp_; /* process group of shell */
- uid_t ksheuid_; /* effective UID of shell */
- pid_t kshppid_; /* PID of parent of shell */
- uint32_t h; /* some kind of hash */
-} kshstate_f;
-#define kshname kshstate_f.kshname_
-#define kshpid kshstate_f.kshpid_
-#define procpid kshstate_v.procpid_
-#define kshpgrp kshstate_f.kshpgrp_
-#define ksheuid kshstate_f.ksheuid_
-#define kshppid kshstate_f.kshppid_
-#define exstat kshstate_v.exstat_
-#define subst_exstat kshstate_v.subst_exstat_
-
-/* evil hack: return hash(kshstate_f concat (kshstate_f'.h:=hash(arg))) */
-uint32_t evilhash(const char *);
+/* sort of shell global state */
+EXTERN pid_t procpid; /* PID of executing process */
+EXTERN int exstat; /* exit status */
+EXTERN int subst_exstat; /* exit status of last $(..)/`..` */
+EXTERN struct tbl *vp_pipest; /* global PIPESTATUS array */
+EXTERN short trap_exstat; /* exit status before running a trap */
+EXTERN uint8_t trap_nested; /* running nested traps */
+EXTERN uint8_t shell_flags[FNFLAGS];
+EXTERN const char *kshname; /* $0 */
+EXTERN struct {
+ uid_t kshuid_v; /* real UID of shell */
+ uid_t ksheuid_v; /* effective UID of shell */
+ gid_t kshgid_v; /* real GID of shell */
+ gid_t kshegid_v; /* effective GID of shell */
+ pid_t kshpgrp_v; /* process group of shell */
+ pid_t kshppid_v; /* PID of parent of shell */
+ pid_t kshpid_v; /* $$, shell PID */
+} rndsetupstate;
+
+#define kshpid rndsetupstate.kshpid_v
+#define kshpgrp rndsetupstate.kshpgrp_v
+#define kshuid rndsetupstate.kshuid_v
+#define ksheuid rndsetupstate.ksheuid_v
+#define kshgid rndsetupstate.kshgid_v
+#define kshegid rndsetupstate.kshegid_v
+#define kshppid rndsetupstate.kshppid_v
/* option processing */
#define OF_FIRSTTIME 0x10 /* as early as possible, once */
#define OF_ANY (OF_CMDLINE | OF_SET | OF_SPECIAL | OF_INTERNAL)
-struct shoption {
- const char *name; /* long name of option */
- char c; /* character flag (if any) */
- unsigned char flags; /* OF_* */
-};
-extern const struct shoption options[];
-
-/* null value for variable; comparision pointer for unset */
-EXTERN char null[] I__("");
-/* helpers for string pooling */
-#define T_synerr "syntax error"
-EXTERN const char r_fc_e_[] I__("r=fc -e -");
-#define fc_e_ (r_fc_e_ + 2) /* "fc -e -" */
-#define fc_e_n 7 /* strlen(fc_e_) */
-EXTERN const char T_local_typeset[] I__("local=typeset");
-#define T__typeset (T_local_typeset + 5) /* "=typeset" */
-#define T_typeset (T_local_typeset + 6) /* "typeset" */
-
-enum temp_type {
- TT_HEREDOC_EXP, /* expanded heredoc */
- TT_HIST_EDIT /* temp file used for history editing (fc -e) */
-};
-typedef enum temp_type Temp_type;
+/* null value for variable; comparison pointer for unset */
+EXTERN char null[] E_INIT("");
+
+/* string pooling: do we rely on the compiler? */
+#ifndef HAVE_STRING_POOLING
+/* no, we use our own, saves quite some space */
+#elif HAVE_STRING_POOLING == 2
+/* “on demand” */
+#ifdef __GNUC__
+/* only for GCC 4 or later, older ones can get by without */
+#if __GNUC__ < 4
+#undef HAVE_STRING_POOLING
+#endif
+#else
+/* not GCC, default to on */
+#endif
+#elif HAVE_STRING_POOLING == 0
+/* default to on, unless explicitly set to 0 */
+#undef HAVE_STRING_POOLING
+#endif
+
+#ifndef HAVE_STRING_POOLING /* helpers for pooled strings */
+EXTERN const char T4spaces[] E_INIT(" ");
+#define T1space (Treal_sp2 + 5)
+#define Tcolsp (Tf_sD_ + 2)
+#define TC_IFSWS (TinitIFS + 4)
+EXTERN const char TinitIFS[] E_INIT("IFS= \t\n");
+EXTERN const char TFCEDIT_dollaru[] E_INIT("${FCEDIT:-/bin/ed} $_");
+#define Tspdollaru (TFCEDIT_dollaru + 18)
+EXTERN const char Tsgdot[] E_INIT("*=.");
+EXTERN const char Taugo[] E_INIT("augo");
+EXTERN const char Tbracket[] E_INIT("[");
+#define Tdot (Tsgdot + 2)
+#define Talias (Tunalias + 2)
+EXTERN const char Tbadnum[] E_INIT("bad number");
+#define Tbadsubst (Tfg_badsubst + 10)
+EXTERN const char Tbg[] E_INIT("bg");
+EXTERN const char Tbad_bsize[] E_INIT("bad shf/buf/bsize");
+#define Tbsize (Tbad_bsize + 12)
+EXTERN const char Tbad_sig_ss[] E_INIT("%s: bad signal '%s'");
+#define Tbad_sig_s (Tbad_sig_ss + 4)
+EXTERN const char Tsgbreak[] E_INIT("*=break");
+#define Tbreak (Tsgbreak + 2)
+EXTERN const char T__builtin[] E_INIT("-\\builtin");
+#define T_builtin (T__builtin + 1)
+#define Tbuiltin (T__builtin + 2)
+EXTERN const char Toomem[] E_INIT("can't allocate %zu data bytes");
+EXTERN const char Tcant_cd[] E_INIT("restricted shell - can't cd");
+EXTERN const char Tcant_find[] E_INIT("can't find");
+EXTERN const char Tcant_open[] E_INIT("can't open");
+#define Tbytes (Toomem + 24)
+EXTERN const char Tbcat[] E_INIT("!cat");
+#define Tcat (Tbcat + 1)
+#define Tcd (Tcant_cd + 25)
+#define T_command (T_funny_command + 9)
+#define Tcommand (T_funny_command + 10)
+EXTERN const char Tsgcontinue[] E_INIT("*=continue");
+#define Tcontinue (Tsgcontinue + 2)
+EXTERN const char Tcreate[] E_INIT("create");
+EXTERN const char TELIF_unexpected[] E_INIT("TELIF unexpected");
+EXTERN const char TEXECSHELL[] E_INIT("EXECSHELL");
+EXTERN const char Tdsgexport[] E_INIT("^*=export");
+#define Texport (Tdsgexport + 3)
+#ifdef __OS2__
+EXTERN const char Textproc[] E_INIT("extproc");
+#endif
+EXTERN const char Tfalse[] E_INIT("false");
+EXTERN const char Tfg[] E_INIT("fg");
+EXTERN const char Tfg_badsubst[] E_INIT("fileglob: bad substitution");
+#define Tfile (Tfile_fd + 20)
+EXTERN const char Tfile_fd[] E_INIT("function definition file");
+EXTERN const char TFPATH[] E_INIT("FPATH");
+EXTERN const char T_function[] E_INIT(" function");
+#define Tfunction (T_function + 1)
+EXTERN const char T_funny_command[] E_INIT("funny $()-command");
+EXTERN const char Tgetopts[] E_INIT("getopts");
+#define Thistory (Tnot_in_history + 7)
+EXTERN const char Tintovfl[] E_INIT("integer overflow %zu %c %zu prevented");
+EXTERN const char Tinvname[] E_INIT("%s: invalid %s name");
+EXTERN const char Tjobs[] E_INIT("jobs");
+EXTERN const char Tjob_not_started[] E_INIT("job not started");
+EXTERN const char Tmksh[] E_INIT("mksh");
+#define Tname (Tinvname + 15)
+EXTERN const char Tno_args[] E_INIT("missing argument");
+EXTERN const char Tno_OLDPWD[] E_INIT("no OLDPWD");
+EXTERN const char Tnot_ident[] E_INIT("is not an identifier");
+EXTERN const char Tnot_in_history[] E_INIT("not in history");
+EXTERN const char Tnot_found_s[] E_INIT("%s not found");
+#define Tnot_found (Tnot_found_s + 3)
+#define Tnot_started (Tjob_not_started + 4)
+#define TOLDPWD (Tno_OLDPWD + 3)
+#define Topen (Tcant_open + 6)
+#define TPATH (TFPATH + 1)
+#define Tpv (TpVv + 1)
+EXTERN const char TpVv[] E_INIT("Vpv");
+#define TPWD (Tno_OLDPWD + 6)
+#define Tread (Tshf_read + 4)
+EXTERN const char Tdsgreadonly[] E_INIT("^*=readonly");
+#define Treadonly (Tdsgreadonly + 3)
+EXTERN const char Tredirection_dup[] E_INIT("can't finish (dup) redirection");
+#define Tredirection (Tredirection_dup + 19)
+#define Treal_sp1 (Treal_sp2 + 1)
+EXTERN const char Treal_sp2[] E_INIT(" real ");
+EXTERN const char Treq_arg[] E_INIT("requires an argument");
+EXTERN const char Tselect[] E_INIT("select");
+EXTERN const char Tsgset[] E_INIT("*=set");
+#define Tset (Tf_parm + 18)
+#define Tsh (Tmksh + 2)
+#define TSHELL (TEXECSHELL + 4)
+#define Tshell (Ttoo_many_files + 23)
+EXTERN const char Tshf_read[] E_INIT("shf_read");
+EXTERN const char Tshf_write[] E_INIT("shf_write");
+EXTERN const char Tgsource[] E_INIT("=source");
+#define Tsource (Tgsource + 1)
+EXTERN const char Tj_suspend[] E_INIT("j_suspend");
+#define Tsuspend (Tj_suspend + 2)
+EXTERN const char Tsynerr[] E_INIT("syntax error");
+EXTERN const char Ttime[] E_INIT("time");
+EXTERN const char Ttoo_many_args[] E_INIT("too many arguments");
+EXTERN const char Ttoo_many_files[] E_INIT("too many open files in shell");
+EXTERN const char Ttrue[] E_INIT("true");
+EXTERN const char Ttty_fd_dupof[] E_INIT("dup of tty fd");
+#define Ttty_fd (Ttty_fd_dupof + 7)
+EXTERN const char Tdgtypeset[] E_INIT("^=typeset");
+#define Ttypeset (Tdgtypeset + 2)
+#define Tugo (Taugo + 1)
+EXTERN const char Tunalias[] E_INIT("unalias");
+#define Tunexpected (TELIF_unexpected + 6)
+EXTERN const char Tunexpected_type[] E_INIT("%s: unexpected %s type %d");
+EXTERN const char Tunknown_option[] E_INIT("unknown option");
+EXTERN const char Tunwind[] E_INIT("unwind");
+#define Tuser_sp1 (Tuser_sp2 + 1)
+EXTERN const char Tuser_sp2[] E_INIT(" user ");
+#define Twrite (Tshf_write + 4)
+EXTERN const char Tf__S[] E_INIT(" %S");
+#define Tf__d (Tunexpected_type + 22)
+EXTERN const char Tf__ss[] E_INIT(" %s%s");
+#define Tf__sN (Tf_s_s_sN + 5)
+EXTERN const char Tf_sSs[] E_INIT("%s/%s");
+#define Tf_T (Tf_s_T + 3)
+EXTERN const char Tf_dN[] E_INIT("%d\n");
+EXTERN const char Tf_s_[] E_INIT("%s ");
+EXTERN const char Tf_s_T[] E_INIT("%s %T");
+EXTERN const char Tf_s_s_sN[] E_INIT("%s %s %s\n");
+#define Tf_s_s (Tf_sD_s_s + 4)
+#define Tf_s_sD_s (Tf_cant_ss_s + 6)
+EXTERN const char Tf_optfoo[] E_INIT("%s%s-%c: %s");
+EXTERN const char Tf_sD_[] E_INIT("%s: ");
+EXTERN const char Tf_szs[] E_INIT("%s: %zd %s");
+EXTERN const char Tf_parm[] E_INIT("%s: parameter not set");
+EXTERN const char Tf_coproc[] E_INIT("-p: %s");
+EXTERN const char Tf_cant_s[] E_INIT("%s: can't %s");
+EXTERN const char Tf_cant_ss_s[] E_INIT("can't %s %s: %s");
+EXTERN const char Tf_heredoc[] E_INIT("here document '%s' unclosed");
+#if HAVE_MKNOD
+EXTERN const char Tf_nonnum[] E_INIT("non-numeric %s %s '%s'");
+#endif
+EXTERN const char Tf_S_[] E_INIT("%S ");
+#define Tf_S (Tf__S + 1)
+#define Tf_lu (Tf_toolarge + 17)
+EXTERN const char Tf_toolarge[] E_INIT("%s %s too large: %lu");
+EXTERN const char Tf_ldfailed[] E_INIT("%s %s(%d, %ld) failed: %s");
+#define Tf_ss (Tf_sss + 2)
+EXTERN const char Tf_sss[] E_INIT("%s%s%s");
+EXTERN const char Tf_sD_s_sD_s[] E_INIT("%s: %s %s: %s");
+EXTERN const char Tf_toomany[] E_INIT("too many %ss");
+EXTERN const char Tf_sd[] E_INIT("%s %d");
+#define Tf_s (Tf_temp + 28)
+EXTERN const char Tft_end[] E_INIT("%;");
+EXTERN const char Tft_R[] E_INIT("%R");
+#define Tf_d (Tunexpected_type + 23)
+EXTERN const char Tf_sD_s_qs[] E_INIT("%s: %s '%s'");
+EXTERN const char Tf_ro[] E_INIT("read-only: %s");
+EXTERN const char Tf_flags[] E_INIT("%s: flags 0x%X");
+EXTERN const char Tf_temp[] E_INIT("can't %s temporary file %s: %s");
+EXTERN const char Tf_ssfaileds[] E_INIT("%s: %s failed: %s");
+EXTERN const char Tf_sD_sD_s[] E_INIT("%s: %s: %s");
+EXTERN const char Tf__c_[] E_INIT("-%c ");
+EXTERN const char Tf_sD_s_s[] E_INIT("%s: %s %s");
+#define Tf_sN (Tf_s_s_sN + 6)
+#define Tf_sD_s (Tf_temp + 24)
+EXTERN const char T_devtty[] E_INIT("/dev/tty");
+#else /* helpers for string pooling */
+#define T4spaces " "
+#define T1space " "
+#define Tcolsp ": "
+#define TC_IFSWS " \t\n"
+#define TinitIFS "IFS= \t\n"
+#define TFCEDIT_dollaru "${FCEDIT:-/bin/ed} $_"
+#define Tspdollaru " $_"
+#define Tsgdot "*=."
+#define Taugo "augo"
+#define Tbracket "["
+#define Tdot "."
+#define Talias "alias"
+#define Tbadnum "bad number"
+#define Tbadsubst "bad substitution"
+#define Tbg "bg"
+#define Tbad_bsize "bad shf/buf/bsize"
+#define Tbsize "bsize"
+#define Tbad_sig_ss "%s: bad signal '%s'"
+#define Tbad_sig_s "bad signal '%s'"
+#define Tsgbreak "*=break"
+#define Tbreak "break"
+#define T__builtin "-\\builtin"
+#define T_builtin "\\builtin"
+#define Tbuiltin "builtin"
+#define Toomem "can't allocate %zu data bytes"
+#define Tcant_cd "restricted shell - can't cd"
+#define Tcant_find "can't find"
+#define Tcant_open "can't open"
+#define Tbytes "bytes"
+#define Tbcat "!cat"
+#define Tcat "cat"
+#define Tcd "cd"
+#define T_command "-command"
+#define Tcommand "command"
+#define Tsgcontinue "*=continue"
+#define Tcontinue "continue"
+#define Tcreate "create"
+#define TELIF_unexpected "TELIF unexpected"
+#define TEXECSHELL "EXECSHELL"
+#define Tdsgexport "^*=export"
+#define Texport "export"
+#ifdef __OS2__
+#define Textproc "extproc"
+#endif
+#define Tfalse "false"
+#define Tfg "fg"
+#define Tfg_badsubst "fileglob: bad substitution"
+#define Tfile "file"
+#define Tfile_fd "function definition file"
+#define TFPATH "FPATH"
+#define T_function " function"
+#define Tfunction "function"
+#define T_funny_command "funny $()-command"
+#define Tgetopts "getopts"
+#define Thistory "history"
+#define Tintovfl "integer overflow %zu %c %zu prevented"
+#define Tinvname "%s: invalid %s name"
+#define Tjobs "jobs"
+#define Tjob_not_started "job not started"
+#define Tmksh "mksh"
+#define Tname "name"
+#define Tno_args "missing argument"
+#define Tno_OLDPWD "no OLDPWD"
+#define Tnot_ident "is not an identifier"
+#define Tnot_in_history "not in history"
+#define Tnot_found_s "%s not found"
+#define Tnot_found "not found"
+#define Tnot_started "not started"
+#define TOLDPWD "OLDPWD"
+#define Topen "open"
+#define TPATH "PATH"
+#define Tpv "pv"
+#define TpVv "Vpv"
+#define TPWD "PWD"
+#define Tread "read"
+#define Tdsgreadonly "^*=readonly"
+#define Treadonly "readonly"
+#define Tredirection_dup "can't finish (dup) redirection"
+#define Tredirection "redirection"
+#define Treal_sp1 "real "
+#define Treal_sp2 " real "
+#define Treq_arg "requires an argument"
+#define Tselect "select"
+#define Tsgset "*=set"
+#define Tset "set"
+#define Tsh "sh"
+#define TSHELL "SHELL"
+#define Tshell "shell"
+#define Tshf_read "shf_read"
+#define Tshf_write "shf_write"
+#define Tgsource "=source"
+#define Tsource "source"
+#define Tj_suspend "j_suspend"
+#define Tsuspend "suspend"
+#define Tsynerr "syntax error"
+#define Ttime "time"
+#define Ttoo_many_args "too many arguments"
+#define Ttoo_many_files "too many open files in shell"
+#define Ttrue "true"
+#define Ttty_fd_dupof "dup of tty fd"
+#define Ttty_fd "tty fd"
+#define Tdgtypeset "^=typeset"
+#define Ttypeset "typeset"
+#define Tugo "ugo"
+#define Tunalias "unalias"
+#define Tunexpected "unexpected"
+#define Tunexpected_type "%s: unexpected %s type %d"
+#define Tunknown_option "unknown option"
+#define Tunwind "unwind"
+#define Tuser_sp1 "user "
+#define Tuser_sp2 " user "
+#define Twrite "write"
+#define Tf__S " %S"
+#define Tf__d " %d"
+#define Tf__ss " %s%s"
+#define Tf__sN " %s\n"
+#define Tf_sSs "%s/%s"
+#define Tf_T "%T"
+#define Tf_dN "%d\n"
+#define Tf_s_ "%s "
+#define Tf_s_T "%s %T"
+#define Tf_s_s_sN "%s %s %s\n"
+#define Tf_s_s "%s %s"
+#define Tf_s_sD_s "%s %s: %s"
+#define Tf_optfoo "%s%s-%c: %s"
+#define Tf_sD_ "%s: "
+#define Tf_szs "%s: %zd %s"
+#define Tf_parm "%s: parameter not set"
+#define Tf_coproc "-p: %s"
+#define Tf_cant_s "%s: can't %s"
+#define Tf_cant_ss_s "can't %s %s: %s"
+#define Tf_heredoc "here document '%s' unclosed"
+#if HAVE_MKNOD
+#define Tf_nonnum "non-numeric %s %s '%s'"
+#endif
+#define Tf_S_ "%S "
+#define Tf_S "%S"
+#define Tf_lu "%lu"
+#define Tf_toolarge "%s %s too large: %lu"
+#define Tf_ldfailed "%s %s(%d, %ld) failed: %s"
+#define Tf_ss "%s%s"
+#define Tf_sss "%s%s%s"
+#define Tf_sD_s_sD_s "%s: %s %s: %s"
+#define Tf_toomany "too many %ss"
+#define Tf_sd "%s %d"
+#define Tf_s "%s"
+#define Tft_end "%;"
+#define Tft_R "%R"
+#define Tf_d "%d"
+#define Tf_sD_s_qs "%s: %s '%s'"
+#define Tf_ro "read-only: %s"
+#define Tf_flags "%s: flags 0x%X"
+#define Tf_temp "can't %s temporary file %s: %s"
+#define Tf_ssfaileds "%s: %s failed: %s"
+#define Tf_sD_sD_s "%s: %s: %s"
+#define Tf__c_ "-%c "
+#define Tf_sD_s_s "%s: %s %s"
+#define Tf_sN "%s\n"
+#define Tf_sD_s "%s: %s"
+#define T_devtty "/dev/tty"
+#endif /* end of string pooling */
+
+typedef uint8_t Temp_type;
+/* expanded heredoc */
+#define TT_HEREDOC_EXP 0
+/* temporary file used for history editing (fc -e) */
+#define TT_HIST_EDIT 1
+/* temporary file used during in-situ command substitution */
+#define TT_FUNSUB 2
+
/* temp/heredoc files. The file is removed when the struct is freed. */
struct temp {
struct temp *next;
struct shf *shf;
- char *name;
- int pid; /* pid of process parsed here-doc */
+ /* pid of process parsed here-doc */
+ pid_t pid;
Temp_type type;
+ /* actually longer: name (variable length) */
+ char tffn[3];
};
/*
* stdio and our IO routines
*/
-#define shl_spare (&shf_iob[0]) /* for c_read()/c_print() */
+#define shl_xtrace (&shf_iob[0]) /* for set -x */
#define shl_stdout (&shf_iob[1])
#define shl_out (&shf_iob[2])
-EXTERN int shl_stdout_ok;
+#ifdef DF
+#define shl_dbg (&shf_iob[3]) /* for DF() */
+#endif
+EXTERN bool shl_stdout_ok;
/*
* trap handlers
#define SS_USER BIT(4) /* user is doing the set (ie, trap command) */
#define SS_SHTRAP BIT(5) /* trap for internal use (ALRM, CHLD, WINCH) */
-#define SIGEXIT_ 0 /* for trap EXIT */
-#define SIGERR_ NSIG /* for trap ERR */
+#define ksh_SIGEXIT 0 /* for trap EXIT */
+#define ksh_SIGERR ksh_NSIG /* for trap ERR */
EXTERN volatile sig_atomic_t trap; /* traps pending? */
EXTERN volatile sig_atomic_t intrsig; /* pending trap interrupts command */
-EXTERN volatile sig_atomic_t fatal_trap;/* received a fatal signal */
-extern Trap sigtraps[NSIG+1];
+EXTERN volatile sig_atomic_t fatal_trap; /* received a fatal signal */
+extern Trap sigtraps[ksh_NSIG + 1];
/* got_winch = 1 when we need to re-adjust the window size */
#ifdef SIGWINCH
-EXTERN volatile sig_atomic_t got_winch I__(1);
+EXTERN volatile sig_atomic_t got_winch E_INIT(1);
#else
#define got_winch true
#endif
TMOUT_LEAVING /* have timed out */
};
EXTERN unsigned int ksh_tmout;
-EXTERN enum tmout_enum ksh_tmout_state I__(TMOUT_EXECUTING);
+EXTERN enum tmout_enum ksh_tmout_state;
/* For "You have stopped jobs" message */
-EXTERN int really_exit;
+EXTERN bool really_exit;
/*
* fast character classes
*/
-#define C_ALPHA BIT(0) /* a-z_A-Z */
-#define C_DIGIT BIT(1) /* 0-9 */
-#define C_LEX1 BIT(2) /* \t \n\0|&;<>() */
-#define C_VAR1 BIT(3) /* *@#!$-? */
-#define C_IFSWS BIT(4) /* \t \n (IFS white space) */
-#define C_SUBOP1 BIT(5) /* "=-+?" */
-#define C_QUOTE BIT(6) /* \t\n "#$&'()*;<=>?[\]`| (needing quoting) */
-#define C_IFS BIT(7) /* $IFS */
-#define C_SUBOP2 BIT(8) /* "#%" (magic, see below) */
-
-extern unsigned char chtypes[];
-
-#define ctype(c, t) !!( ((t) == C_SUBOP2) ? \
- (((c) == '#' || (c) == '%') ? 1 : 0) : \
- (chtypes[(unsigned char)(c)]&(t)) )
-#define ksh_isalphx(c) ctype((c), C_ALPHA)
-#define ksh_isalnux(c) ctype((c), C_ALPHA | C_DIGIT)
-
-EXTERN int ifs0 I__(' '); /* for "$*" */
+
+/* internal types, do not reference */
+
+/* initially empty — filled at runtime from $IFS */
+#define CiIFS BIT(0)
+#define CiCNTRL BIT(1) /* \x01‥\x08\x0E‥\x1F\x7F */
+#define CiUPPER BIT(2) /* A‥Z */
+#define CiLOWER BIT(3) /* a‥z */
+#define CiHEXLT BIT(4) /* A‥Fa‥f */
+#define CiOCTAL BIT(5) /* 0‥7 */
+#define CiQCL BIT(6) /* &();| */
+#define CiALIAS BIT(7) /* !,.@ */
+#define CiQCX BIT(8) /* *[\\ */
+#define CiVAR1 BIT(9) /* !*@ */
+#define CiQCM BIT(10) /* /^~ */
+#define CiDIGIT BIT(11) /* 89 */
+#define CiQC BIT(12) /* "' */
+#define CiSPX BIT(13) /* \x0B\x0C */
+#define CiCURLY BIT(14) /* {} */
+#define CiANGLE BIT(15) /* <> */
+#define CiNUL BIT(16) /* \x00 */
+#define CiTAB BIT(17) /* \x09 */
+#define CiNL BIT(18) /* \x0A */
+#define CiCR BIT(19) /* \x0D */
+#define CiSP BIT(20) /* \x20 */
+#define CiHASH BIT(21) /* # */
+#define CiSS BIT(22) /* $ */
+#define CiPERCT BIT(23) /* % */
+#define CiPLUS BIT(24) /* + */
+#define CiMINUS BIT(25) /* - */
+#define CiCOLON BIT(26) /* : */
+#define CiEQUAL BIT(27) /* = */
+#define CiQUEST BIT(28) /* ? */
+#define CiBRACK BIT(29) /* ] */
+#define CiUNDER BIT(30) /* _ */
+#define CiGRAVE BIT(31) /* ` */
+/* out of space, but one for *@ would make sense, possibly others */
+
+/* compile-time initialised, ASCII only */
+extern const uint32_t tpl_ctypes[128];
+/* run-time, contains C_IFS as well, full 2⁸ octet range */
+EXTERN uint32_t ksh_ctypes[256];
+/* first octet of $IFS, for concatenating "$*" */
+EXTERN char ifs0;
+
+/* external types */
+
+/* !%,-.0‥9:@A‥Z[]_a‥z valid characters in alias names */
+#define C_ALIAS (CiALIAS | CiBRACK | CiCOLON | CiDIGIT | CiLOWER | CiMINUS | CiOCTAL | CiPERCT | CiUNDER | CiUPPER)
+/* 0‥9A‥Za‥z alphanumerical */
+#define C_ALNUM (CiDIGIT | CiLOWER | CiOCTAL | CiUPPER)
+/* 0‥9A‥Z_a‥z alphanumerical plus underscore (“word character”) */
+#define C_ALNUX (CiDIGIT | CiLOWER | CiOCTAL | CiUNDER | CiUPPER)
+/* A‥Za‥z alphabetical (upper plus lower) */
+#define C_ALPHA (CiLOWER | CiUPPER)
+/* A‥Z_a‥z alphabetical plus underscore (identifier lead) */
+#define C_ALPHX (CiLOWER | CiUNDER | CiUPPER)
+/* \x01‥\x7F 7-bit ASCII except NUL */
+#define C_ASCII (CiALIAS | CiANGLE | CiBRACK | CiCNTRL | CiCOLON | CiCR | CiCURLY | CiDIGIT | CiEQUAL | CiGRAVE | CiHASH | CiLOWER | CiMINUS | CiNL | CiOCTAL | CiPERCT | CiPLUS | CiQC | CiQCL | CiQCM | CiQCX | CiQUEST | CiSP | CiSPX | CiSS | CiTAB | CiUNDER | CiUPPER)
+/* \x09\x20 tab and space */
+#define C_BLANK (CiSP | CiTAB)
+/* \x09\x20"' separator for completion */
+#define C_CFS (CiQC | CiSP | CiTAB)
+/* \x00‥\x1F\x7F POSIX control characters */
+#define C_CNTRL (CiCNTRL | CiCR | CiNL | CiNUL | CiSPX | CiTAB)
+/* 0‥9 decimal digits */
+#define C_DIGIT (CiDIGIT | CiOCTAL)
+/* &();`| editor x_locate_word() command */
+#define C_EDCMD (CiGRAVE | CiQCL)
+/* \x09\x0A\x20"&'():;<=>`| editor non-word characters */
+#define C_EDNWC (CiANGLE | CiCOLON | CiEQUAL | CiGRAVE | CiNL | CiQC | CiQCL | CiSP | CiTAB)
+/* "#$&'()*:;<=>?[\\`{|} editor quotes for tab completion */
+#define C_EDQ (CiANGLE | CiCOLON | CiCURLY | CiEQUAL | CiGRAVE | CiHASH | CiQC | CiQCL | CiQCX | CiQUEST | CiSS)
+/* !‥~ POSIX graphical (alphanumerical plus punctuation) */
+#define C_GRAPH (C_PUNCT | CiDIGIT | CiLOWER | CiOCTAL | CiUPPER)
+/* A‥Fa‥f hex letter */
+#define C_HEXLT CiHEXLT
+/* \x00 + $IFS IFS whitespace, IFS non-whitespace, NUL */
+#define C_IFS (CiIFS | CiNUL)
+/* \x09\x0A\x20 IFS whitespace */
+#define C_IFSWS (CiNL | CiSP | CiTAB)
+/* \x09\x0A\x20&();<>| (for the lexer) */
+#define C_LEX1 (CiANGLE | CiNL | CiQCL | CiSP | CiTAB)
+/* a‥z lowercase letters */
+#define C_LOWER CiLOWER
+/* not alnux or dollar separator for motion */
+#define C_MFS (CiALIAS | CiANGLE | CiBRACK | CiCNTRL | CiCOLON | CiCR | CiCURLY | CiEQUAL | CiGRAVE | CiHASH | CiMINUS | CiNL | CiNUL | CiPERCT | CiPLUS | CiQC | CiQCL | CiQCM | CiQCX | CiQUEST | CiSP | CiSPX | CiTAB)
+/* 0‥7 octal digit */
+#define C_OCTAL CiOCTAL
+/* !*+?@ pattern magical operator, except space */
+#define C_PATMO (CiPLUS | CiQUEST | CiVAR1)
+/* \x20‥~ POSIX printable characters (graph plus space) */
+#define C_PRINT (C_GRAPH | CiSP)
+/* !"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~ POSIX punctuation */
+#define C_PUNCT (CiALIAS | CiANGLE | CiBRACK | CiCOLON | CiCURLY | CiEQUAL | CiGRAVE | CiHASH | CiMINUS | CiPERCT | CiPLUS | CiQC | CiQCL | CiQCM | CiQCX | CiQUEST | CiSS | CiUNDER)
+/* \x09\x0A"#$&'()*;<=>?[\\]`| characters requiring quoting, minus space */
+#define C_QUOTE (CiANGLE | CiBRACK | CiEQUAL | CiGRAVE | CiHASH | CiNL | CiQC | CiQCL | CiQCX | CiQUEST | CiSS | CiTAB)
+/* 0‥9A‥Fa‥f hexadecimal digit */
+#define C_SEDEC (CiDIGIT | CiHEXLT | CiOCTAL)
+/* \x09‥\x0D\x20 POSIX space class */
+#define C_SPACE (CiCR | CiNL | CiSP | CiSPX | CiTAB)
+/* +-=? substitution operations with word */
+#define C_SUB1 (CiEQUAL | CiMINUS | CiPLUS | CiQUEST)
+/* #% substitution operations with pattern */
+#define C_SUB2 (CiHASH | CiPERCT)
+/* A‥Z uppercase letters */
+#define C_UPPER CiUPPER
+/* !#$*-?@ substitution parameters, other than positional */
+#define C_VAR1 (CiHASH | CiMINUS | CiQUEST | CiSS | CiVAR1)
+
+/* individual chars you might like */
+#define C_ANGLE CiANGLE /* <> angle brackets */
+#define C_COLON CiCOLON /* : colon */
+#define C_CR CiCR /* \x0D ASCII carriage return */
+#define C_DOLAR CiSS /* $ dollar sign */
+#define C_EQUAL CiEQUAL /* = equals sign */
+#define C_GRAVE CiGRAVE /* ` accent gravis */
+#define C_HASH CiHASH /* # hash sign */
+#define C_LF CiNL /* \x0A ASCII line feed */
+#define C_MINUS CiMINUS /* - hyphen-minus */
+#ifdef MKSH_WITH_TEXTMODE
+#define C_NL (CiNL | CiCR) /* CR or LF under OS/2 TEXTMODE */
+#else
+#define C_NL CiNL /* LF only like under Unix */
+#endif
+#define C_NUL CiNUL /* \x00 ASCII NUL */
+#define C_PLUS CiPLUS /* + plus sign */
+#define C_QC CiQC /* "' quote characters */
+#define C_QUEST CiQUEST /* ? question mark */
+#define C_SPC CiSP /* \x20 ASCII space */
+#define C_TAB CiTAB /* \x09 ASCII horizontal tabulator */
+#define C_UNDER CiUNDER /* _ underscore */
+
+/* identity transform of octet */
+#if defined(DEBUG) && defined(__GNUC__) && !defined(__ICC) && \
+ !defined(__INTEL_COMPILER) && !defined(__SUNPRO_C)
+extern unsigned int eek_ord;
+#define ORD(c) ((size_t)(c) > 0xFF ? eek_ord : \
+ ((unsigned int)(unsigned char)(c)))
+#define ord(c) __builtin_choose_expr( \
+ __builtin_types_compatible_p(__typeof__(c), char) || \
+ __builtin_types_compatible_p(__typeof__(c), unsigned char), \
+ ((unsigned int)(unsigned char)(c)), ({ \
+ size_t ord_c = (c); \
+ \
+ if (ord_c > (size_t)0xFFU) \
+ internal_errorf("%s:%d:ord(%zX)", \
+ __FILE__, __LINE__, ord_c); \
+ ((unsigned int)(unsigned char)(ord_c)); \
+}))
+#else
+#define ord(c) ((unsigned int)(unsigned char)(c))
+#define ORD(c) ord(c) /* may evaluate arguments twice */
+#endif
+#if defined(MKSH_EBCDIC) || defined(MKSH_FAUX_EBCDIC)
+EXTERN unsigned short ebcdic_map[256];
+EXTERN unsigned char ebcdic_rtt_toascii[256];
+EXTERN unsigned char ebcdic_rtt_fromascii[256];
+extern void ebcdic_init(void);
+/* one-way to-ascii-or-high conversion, for POSIX locale ordering */
+#define asciibetical(c) ((unsigned int)ebcdic_map[(unsigned char)(c)])
+/* two-way round-trip conversion, for general use */
+#define rtt2asc(c) ebcdic_rtt_toascii[(unsigned char)(c)]
+#define asc2rtt(c) ebcdic_rtt_fromascii[(unsigned char)(c)]
+/* case-independent char comparison */
+#define ksh_eq(c,u,l) (ord(c) == ord(u) || ord(c) == ord(l))
+#else
+#define asciibetical(c) ord(c)
+#define rtt2asc(c) ((unsigned char)(c))
+#define asc2rtt(c) ((unsigned char)(c))
+#define ksh_eq(c,u,l) ((ord(c) | 0x20) == ord(l))
+#endif
+/* control character foo */
+#ifdef MKSH_EBCDIC
+#define ksh_isctrl(c) (ord(c) < 0x40 || ord(c) == 0xFF)
+#else
+#define ksh_isctrl(c) ((ord(c) & 0x7F) < 0x20 || ord(c) == 0x7F)
+#endif
+/* new fast character classes */
+#define ctype(c,t) tobool(ksh_ctypes[ord(c)] & (t))
+#define cinttype(c,t) ((c) >= 0 && (c) <= 0xFF ? \
+ tobool(ksh_ctypes[(unsigned char)(c)] & (t)) : false)
+/* helper functions */
+#define ksh_isdash(s) tobool(ord((s)[0]) == '-' && ord((s)[1]) == '\0')
+/* invariant distance even in EBCDIC */
+#define ksh_tolower(c) (ctype(c, C_UPPER) ? (c) - 'A' + 'a' : (c))
+#define ksh_toupper(c) (ctype(c, C_LOWER) ? (c) - 'a' + 'A' : (c))
+/* strictly speaking rtt2asc() here, but this works even in EBCDIC */
+#define ksh_numdig(c) (ord(c) - ORD('0'))
+#define ksh_numuc(c) (rtt2asc(c) - rtt2asc('A'))
+#define ksh_numlc(c) (rtt2asc(c) - rtt2asc('a'))
+#define ksh_toctrl(c) asc2rtt(ord(c) == ORD('?') ? 0x7F : rtt2asc(c) & 0x9F)
+#define ksh_unctrl(c) asc2rtt(rtt2asc(c) ^ 0x40U)
/* Argument parsing for built-in commands and getopts command */
#define GI_PLUS BIT(1) /* an option started with +... */
#define GI_MINUSMINUS BIT(2) /* arguments were ended with -- */
+/* in case some OS defines these */
+#undef optarg
+#undef optind
+
typedef struct {
- const char *optarg;
- int optind;
- int uoptind;/* what user sees in $OPTIND */
- int flags; /* see GF_* */
- int info; /* see GI_* */
- unsigned int p; /* 0 or index into argv[optind - 1] */
- char buf[2]; /* for bad option OPTARG value */
+ const char *optarg;
+ int optind;
+ int uoptind; /* what user sees in $OPTIND */
+ int flags; /* see GF_* */
+ int info; /* see GI_* */
+ unsigned int p; /* 0 or index into argv[optind - 1] */
+ char buf[2]; /* for bad option OPTARG value */
} Getopt;
EXTERN Getopt builtin_opt; /* for shell builtin commands */
/* This for co-processes */
-typedef int32_t Coproc_id; /* something that won't (realisticly) wrap */
+/* something that won't (realisticly) wrap */
+typedef int Coproc_id;
+
struct coproc {
void *job; /* 0 or job of co-process using input pipe */
int read; /* pipe from co-process's stdout */
};
EXTERN struct coproc coproc;
-/* Used in jobs.c and by coprocess stuff in exec.c */
+#ifndef MKSH_NOPROSPECTOFWORK
+/* used in jobs.c and by coprocess stuff in exec.c and select() calls */
EXTERN sigset_t sm_default, sm_sigchld;
+#endif
/* name of called builtin function (used by error functions) */
EXTERN const char *builtin_argv0;
-EXTERN Tflag builtin_flag; /* flags of called builtin (SPEC_BI, etc.) */
+/* is called builtin a POSIX special builtin? (error functions only) */
+EXTERN bool builtin_spec;
-/* current working directory, and size of memory allocated for same */
+/* current working directory */
EXTERN char *current_wd;
-EXTERN size_t current_wd_size;
-/* Minimum required space to work with on a line - if the prompt leaves less
- * space than this on a line, the prompt is truncated.
- */
-#define MIN_EDIT_SPACE 7
-/* Minimum allowed value for x_cols: 2 for prompt, 3 for " < " at end of line
- */
-#define MIN_COLS (2 + MIN_EDIT_SPACE + 3)
-#define MIN_LINS 3
-EXTERN mksh_ari_t x_cols I__(80); /* tty columns */
-EXTERN mksh_ari_t x_lins I__(-1); /* tty lines */
-
-/* These to avoid bracket matching problems */
-#define OPAREN '('
-#define CPAREN ')'
-#define OBRACK '['
-#define CBRACK ']'
-#define OBRACE '{'
-#define CBRACE '}'
+/* input line size */
+#ifdef MKSH_SMALL
+#define LINE (4096 - ALLOC_OVERHEAD)
+#else
+#define LINE (16384 - ALLOC_OVERHEAD)
+#endif
+/* columns and lines of the tty */
+EXTERN mksh_ari_t x_cols E_INIT(80);
+EXTERN mksh_ari_t x_lins E_INIT(24);
+
/* Determine the location of the system (common) profile */
-#define KSH_SYSTEM_PROFILE "/etc/profile"
+
+#ifndef MKSH_DEFAULT_PROFILEDIR
+#define MKSH_DEFAULT_PROFILEDIR MKSH_UNIXROOT "/etc"
+#endif
+
+#define MKSH_SYSTEM_PROFILE MKSH_DEFAULT_PROFILEDIR "/profile"
+#define MKSH_SUID_PROFILE MKSH_DEFAULT_PROFILEDIR "/suid_profile"
+
/* Used by v_evaluate() and setstr() to control action when error occurs */
-#define KSH_UNWIND_ERROR 0 /* unwind the stack (longjmp) */
+#define KSH_UNWIND_ERROR 0 /* unwind the stack (kshlongjmp) */
#define KSH_RETURN_ERROR 1 /* return 1/0 for success/failure */
/*
* Shell file I/O routines
*/
-#define SHF_BSIZE 512
+#define SHF_BSIZE 512
-#define shf_fileno(shf) ((shf)->fd)
+#define shf_fileno(shf) ((shf)->fd)
#define shf_setfileno(shf,nfd) ((shf)->fd = (nfd))
-#ifdef MKSH_SMALL
-int shf_getc(struct shf *);
-int shf_putc(int, struct shf *);
-#else
-#define shf_getc(shf) ((shf)->rnleft > 0 ? \
- (shf)->rnleft--, *(shf)->rp++ : \
+#define shf_getc_i(shf) ((shf)->rnleft > 0 ? \
+ (shf)->rnleft--, (int)ord(*(shf)->rp++) : \
shf_getchar(shf))
-#define shf_putc(c, shf) ((shf)->wnleft == 0 ? \
- shf_putchar((c), (shf)) : \
+#define shf_putc_i(c, shf) ((shf)->wnleft == 0 ? \
+ shf_putchar((uint8_t)(c), (shf)) : \
((shf)->wnleft--, *(shf)->wp++ = (c)))
-#endif
#define shf_eof(shf) ((shf)->flags & SHF_EOF)
#define shf_error(shf) ((shf)->flags & SHF_ERROR)
-#define shf_errno(shf) ((shf)->errno_)
+#define shf_errno(shf) ((shf)->errnosv)
#define shf_clearerr(shf) ((shf)->flags &= ~(SHF_EOF | SHF_ERROR))
/* Flags passed to shf_*open() */
unsigned char *rp; /* read: current position in buffer */
unsigned char *wp; /* write: current position in buffer */
unsigned char *buf; /* buffer */
+ ssize_t bsize; /* actual size of buf */
+ ssize_t rbsize; /* size of buffer (1 if SHF_UNBUF) */
+ ssize_t rnleft; /* read: how much data left in buffer */
+ ssize_t wbsize; /* size of buffer (0 if SHF_UNBUF) */
+ ssize_t wnleft; /* write: how much space left in buffer */
int flags; /* see SHF_* */
- int rbsize; /* size of buffer (1 if SHF_UNBUF) */
- int rnleft; /* read: how much data left in buffer */
- int wbsize; /* size of buffer (0 if SHF_UNBUF) */
- int wnleft; /* write: how much space left in buffer */
int fd; /* file descriptor */
- int errno_; /* saved value of errno after error */
- int bsize; /* actual size of buf */
+ int errnosv; /* saved value of errno after error */
};
extern struct shf shf_iob[];
struct table {
Area *areap; /* area to allocate entries */
struct tbl **tbls; /* hashed table items */
- short size, nfree; /* hash size (always 2^^n), free entries */
+ size_t nfree; /* free table entries */
+ uint8_t tshift; /* table size (2^tshift) */
};
-struct tbl { /* table item */
- Area *areap; /* area to allocate from */
+/* table item */
+struct tbl {
+ /* Area to allocate from */
+ Area *areap;
+ /* value */
union {
- char *s; /* string */
- mksh_ari_t i; /* integer */
- mksh_uari_t u; /* unsigned integer */
- int (*f)(const char **);/* int function */
- struct op *t; /* "function" tree */
- } val; /* value */
+ char *s; /* string */
+ mksh_ari_t i; /* integer */
+ mksh_uari_t u; /* unsigned integer */
+ int (*f)(const char **); /* built-in command */
+ struct op *t; /* "function" tree */
+ } val;
union {
struct tbl *array; /* array values */
const char *fpath; /* temporary path to undef function */
} u;
union {
- int field; /* field with for -L/-R/-Z */
- int errno_; /* CEXEC/CTALIAS */
+ int field; /* field with for -L/-R/-Z */
+ int errnov; /* CEXEC/CTALIAS */
} u2;
- int type; /* command type (see below), base (if INTEGER),
- * or offset from val.s of value (if EXPORT) */
- Tflag flag; /* flags */
union {
uint32_t hval; /* hash(name) */
uint32_t index; /* index for an array */
} ua;
- char name[4]; /* name -- variable length */
+ /*
+ * command type (see below), base (if INTEGER),
+ * offset from val.s of value (if EXPORT)
+ */
+ int type;
+ /* flags (see below) */
+ uint32_t flag;
+
+ /* actually longer: name (variable length) */
+ char name[4];
};
+EXTERN struct tbl *vtemp;
+/* set by isglobal(), global() and local() */
+EXTERN bool last_lookup_was_array;
+
/* common flag bits */
#define ALLOC BIT(0) /* val.s has been allocated */
#define DEFINED BIT(1) /* is defined in block */
#define LCASEV BIT(17) /* convert to lower case */
#define UCASEV_AL BIT(18) /* convert to upper case / autoload function */
#define INT_U BIT(19) /* unsigned integer */
-#define INT_L BIT(20) /* long integer (no-op) */
+#define INT_L BIT(20) /* long integer (no-op but used as magic) */
#define IMPORT BIT(21) /* flag to typeset(): no arrays, must have = */
#define LOCAL_COPY BIT(22) /* with LOCAL - copy attrs from existing var */
#define EXPRINEVAL BIT(23) /* contents currently being evaluated */
#define FDELETE BIT(10) /* function deleted while it was executing */
#define FKSH BIT(11) /* function defined with function x (vs x()) */
#define SPEC_BI BIT(12) /* a POSIX special builtin */
-#define REG_BI BIT(13) /* a POSIX regular builtin */
-/* Attributes that can be set by the user (used to decide if an unset param
- * should be repoted by set/typeset). Does not include ARRAY or LOCAL.
+#define LOWER_BI BIT(13) /* (with LOW_BI) override even w/o flags */
+#define LOW_BI BIT(14) /* external utility overrides built-in one */
+#define DECL_UTIL BIT(15) /* is declaration utility */
+#define DECL_FWDR BIT(16) /* is declaration utility forwarder */
+
+/*
+ * Attributes that can be set by the user (used to decide if an unset
+ * param should be repoted by set/typeset). Does not include ARRAY or
+ * LOCAL.
*/
#define USERATTRIB (EXPORT|INTEGER|RDONLY|LJUST|RJUST|ZEROFIL|\
LCASEV|UCASEV_AL|INT_U|INT_L)
#define arrayindex(vp) ((unsigned long)((vp)->flag & AINDEX ? \
(vp)->ua.index : 0))
+enum namerefflag {
+ SRF_NOP,
+ SRF_ENABLE,
+ SRF_DISABLE
+};
+
/* command types */
#define CNONE 0 /* undefined */
#define CSHELL 1 /* built-in */
/* Flags for findcom()/comexec() */
#define FC_SPECBI BIT(0) /* special builtin */
-#define FC_FUNC BIT(1) /* function builtin */
-#define FC_REGBI BIT(2) /* regular builtin */
-#define FC_UNREGBI BIT(3) /* un-regular builtin (!special,!regular) */
-#define FC_BI (FC_SPECBI|FC_REGBI|FC_UNREGBI)
-#define FC_PATH BIT(4) /* do path search */
-#define FC_DEFPATH BIT(5) /* use default path in path search */
-
+#define FC_FUNC BIT(1) /* function */
+#define FC_NORMBI BIT(2) /* not special builtin */
+#define FC_BI (FC_SPECBI | FC_NORMBI)
+#define FC_PATH BIT(3) /* do path search */
+#define FC_DEFPATH BIT(4) /* use default path in path search */
+#define FC_WHENCE BIT(5) /* for use by command and whence */
#define AF_ARGV_ALLOC 0x1 /* argv[] array allocated */
#define AF_ARGS_ALLOCED 0x2 /* argument strings allocated */
#define AI_ARGV(a, i) ((i) == 0 ? (a).argv[0] : (a).argv[(i) - (a).skip])
-#define AI_ARGC(a) ((a).argc_ - (a).skip)
+#define AI_ARGC(a) ((a).ai_argc - (a).skip)
/* Argument info. Used for $#, $* for shell, functions, includes, etc. */
struct arg_info {
const char **argv;
int flags; /* AF_* */
- int argc_;
+ int ai_argc;
int skip; /* first arg is argv[0], second is argv[1 + skip] */
};
/* Values for struct block.flags */
#define BF_DOGETOPTS BIT(0) /* save/restore getopts state */
+#define BF_STOPENV BIT(1) /* do not export further */
/*
* Used by ktwalk() and ktnext() routines.
EXTERN const char *def_path; /* path to use if PATH not set */
EXTERN char *tmpdir; /* TMPDIR value */
EXTERN const char *prompt;
-EXTERN int cur_prompt; /* PS1 or PS2 */
+EXTERN uint8_t cur_prompt; /* PS1 or PS2 */
EXTERN int current_lineno; /* LINENO value */
-#define NOBLOCK ((struct op *)NULL)
-#define NOWORD ((char *)NULL)
-#define NOWORDS ((char **)NULL)
-
/*
* Description of a command or an operation on commands.
*/
*/
int lineno; /* TCOM/TFUNC: LINENO for this */
short type; /* operation type, see below */
- union { /* WARNING: newtp(), tcopy() use evalflags = 0 to clear union */
- short evalflags; /* TCOM: arg expansion eval() flags */
- short ksh_func; /* TFUNC: function x (vs x()) */
+ /* WARNING: newtp(), tcopy() use evalflags = 0 to clear union */
+ union {
+ /* TCOM: arg expansion eval() flags */
+ short evalflags;
+ /* TFUNC: function x (vs x()) */
+ short ksh_func;
+ /* TPAT: termination character */
+ char charflag;
} u;
};
#define SPAT 10 /* separate pattern: | */
#define CPAT 11 /* close pattern: ) */
#define ADELIM 12 /* arbitrary delimiter: ${foo:2:3} ${foo/bar/baz} */
+#define FUNSUB 14 /* ${ foo;} substitution (NUL terminated) */
+#define VALSUB 15 /* ${|foo;} substitution (NUL terminated) */
+#define COMASUB 16 /* `…` substitution (COMSUB but expand aliases) */
+#define FUNASUB 17 /* function substitution but expand aliases */
/*
* IO redirection
*/
struct ioword {
- int unit; /* unit affected */
- int flag; /* action (below) */
- char *name; /* file name (unused if heredoc) */
- char *delim; /* delimiter for <<,<<- */
- char *heredoc;/* content of heredoc */
+ char *ioname; /* filename (unused if heredoc) */
+ char *delim; /* delimiter for <<, <<- */
+ char *heredoc; /* content of heredoc */
+ unsigned short ioflag; /* action (below) */
+ short unit; /* unit (fd) affected */
};
/* ioword.flag - type of redirection */
-#define IOTYPE 0xF /* type: bits 0:3 */
-#define IOREAD 0x1 /* < */
-#define IOWRITE 0x2 /* > */
-#define IORDWR 0x3 /* <>: todo */
-#define IOHERE 0x4 /* << (here file) */
-#define IOCAT 0x5 /* >> */
-#define IODUP 0x6 /* <&/>& */
-#define IOEVAL BIT(4) /* expand in << */
-#define IOSKIP BIT(5) /* <<-, skip ^\t* */
-#define IOCLOB BIT(6) /* >|, override -o noclobber */
-#define IORDUP BIT(7) /* x<&y (as opposed to x>&y) */
-#define IONAMEXP BIT(8) /* name has been expanded */
-#define IOBASH BIT(9) /* &> etc. */
+#define IOTYPE 0xF /* type: bits 0:3 */
+#define IOREAD 0x1 /* < */
+#define IOWRITE 0x2 /* > */
+#define IORDWR 0x3 /* <>: todo */
+#define IOHERE 0x4 /* << (here file) */
+#define IOCAT 0x5 /* >> */
+#define IODUP 0x6 /* <&/>& */
+#define IOEVAL BIT(4) /* expand in << */
+#define IOSKIP BIT(5) /* <<-, skip ^\t* */
+#define IOCLOB BIT(6) /* >|, override -o noclobber */
+#define IORDUP BIT(7) /* x<&y (as opposed to x>&y) */
+#define IONAMEXP BIT(8) /* name has been expanded */
+#define IOBASH BIT(9) /* &> etc. */
+#define IOHERESTR BIT(10) /* <<< (here string) */
+#define IONDELIM BIT(11) /* null delimiter (<<) */
/* execute/exchild flags */
#define XEXEC BIT(0) /* execute without forking */
#define XBGND BIT(2) /* command & */
#define XPIPEI BIT(3) /* input is pipe */
#define XPIPEO BIT(4) /* output is pipe */
-#define XPIPE (XPIPEI|XPIPEO) /* member of pipe */
#define XXCOM BIT(5) /* `...` command */
#define XPCLOSE BIT(6) /* exchild: close close_fd in parent */
#define XCCLOSE BIT(7) /* exchild: close close_fd in child */
#define XERROK BIT(8) /* non-zero exit ok (for set -e) */
#define XCOPROC BIT(9) /* starting a co-process */
#define XTIME BIT(10) /* timing TCOM command */
+#define XPIPEST BIT(11) /* want PIPESTATUS */
/*
* flags to control expansion of words (assumed by t->evalflags to fit
#define DOTILDE BIT(3) /* normal ~ expansion (first char) */
#define DONTRUNCOMMAND BIT(4) /* do not run $(command) things */
#define DOASNTILDE BIT(5) /* assignment ~ expansion (after =, :) */
-#define DOBRACE_ BIT(6) /* used by expand(): do brace expansion */
-#define DOMAGIC_ BIT(7) /* used by expand(): string contains MAGIC */
-#define DOTEMP_ BIT(8) /* ditto : in word part of ${..[%#=?]..} */
+#define DOBRACE BIT(6) /* used by expand(): do brace expansion */
+#define DOMAGIC BIT(7) /* used by expand(): string contains MAGIC */
+#define DOTEMP BIT(8) /* dito: in word part of ${..[%#=?]..} */
#define DOVACHECK BIT(9) /* var assign check (for typeset, set, etc) */
#define DOMARKDIRS BIT(10) /* force markdirs behaviour */
+#define DOTCOMEXEC BIT(11) /* not an eval flag, used by sh -c hack */
+#define DOSCALAR BIT(12) /* change field handling to non-list context */
+#define DOHEREDOC BIT(13) /* change scalar handling to heredoc body */
+#define DOHERESTR BIT(14) /* append a newline char */
-/*
- * The arguments of [[ .. ]] expressions are kept in t->args[] and flags
- * indicating how the arguments have been munged are kept in t->vars[].
- * The contents of t->vars[] are stuffed strings (so they can be treated
- * like all other t->vars[]) in which the second character is the one that
- * is examined. The DB_* defines are the values for these second characters.
- */
-#define DB_NORM 1 /* normal argument */
-#define DB_OR 2 /* || -> -o conversion */
-#define DB_AND 3 /* && -> -a conversion */
-#define DB_BE 4 /* an inserted -BE */
-#define DB_PAT 5 /* a pattern argument */
-
-#define X_EXTRA 8 /* this many extra bytes in X string */
+#define X_EXTRA 20 /* this many extra bytes in X string */
typedef struct XString {
- char *end, *beg; /* end, begin of string */
- size_t len; /* length */
- Area *areap; /* area to allocate/free from */
+ /* beginning of string */
+ char *beg;
+ /* length of allocated area, minus safety margin */
+ size_t len;
+ /* end of string */
+ char *end;
+ /* memory area used */
+ Area *areap;
} XString;
-typedef char *XStringP;
-
/* initialise expandable string */
#define XinitN(xs, length, area) do { \
(xs).len = (length); \
/* check if there are at least n bytes left */
#define XcheckN(xs, xp, n) do { \
- int more = ((xp) + (n)) - (xs).end; \
+ ssize_t more = ((xp) + (n)) - (xs).end; \
if (more > 0) \
- (xp) = Xcheck_grow_(&(xs), (xp), more); \
+ (xp) = Xcheck_grow(&(xs), (xp), (size_t)more); \
} while (/* CONSTCOND */ 0)
/* check for overflow, expand string */
/* close, return string */
#define Xclose(xs, xp) aresize((xs).beg, (xp) - (xs).beg, (xs).areap)
-/* begin of string */
+/* beginning of string */
#define Xstring(xs, xp) ((xs).beg)
#define Xnleft(xs, xp) ((xs).end - (xp)) /* may be less than 0 */
#define Xsavepos(xs, xp) ((xp) - (xs).beg)
#define Xrestpos(xs, xp, n) ((xs).beg + (n))
-char *Xcheck_grow_(XString *, const char *, unsigned int);
+char *Xcheck_grow(XString *, const char *, size_t);
/*
* expandable vector of generic pointers
*/
-typedef struct XPtrV {
- void **cur; /* next avail pointer */
- void **beg, **end; /* begin, end of vector */
+typedef struct {
+ /* beginning of allocated area */
+ void **beg;
+ /* currently used number of entries */
+ size_t len;
+ /* allocated number of entries */
+ size_t siz;
} XPtrV;
-#define XPinit(x, n) do { \
- void **vp__; \
- vp__ = alloc((n) * sizeof(void *), ATEMP); \
- (x).cur = (x).beg = vp__; \
- (x).end = vp__ + (n); \
-} while (/* CONSTCOND */ 0)
-
-#define XPput(x, p) do { \
- if ((x).cur >= (x).end) { \
- size_t n = XPsize(x); \
- (x).beg = aresize((x).beg, \
- n * 2 * sizeof(void *), ATEMP); \
- (x).cur = (x).beg + n; \
- (x).end = (x).cur + n; \
+#define XPinit(x, n) do { \
+ (x).siz = (n); \
+ (x).len = 0; \
+ (x).beg = alloc2((x).siz, sizeof(void *), ATEMP); \
+} while (/* CONSTCOND */ 0) \
+
+#define XPput(x, p) do { \
+ if ((x).len == (x).siz) { \
+ (x).beg = aresize2((x).beg, (x).siz, \
+ 2 * sizeof(void *), ATEMP); \
+ (x).siz <<= 1; \
} \
- *(x).cur++ = (p); \
+ (x).beg[(x).len++] = (p); \
} while (/* CONSTCOND */ 0)
#define XPptrv(x) ((x).beg)
-#define XPsize(x) ((x).cur - (x).beg)
-#define XPclose(x) aresize((x).beg, XPsize(x) * sizeof(void *), ATEMP)
+#define XPsize(x) ((x).len)
+#define XPclose(x) aresize2((x).beg, XPsize(x), sizeof(void *), ATEMP)
#define XPfree(x) afree((x).beg, ATEMP)
-#define IDENT 64
+/* for print_columns */
+
+struct columnise_opts {
+ struct shf *shf;
+ char linesep;
+ bool do_last;
+ bool prefcol;
+};
+
+/*
+ * Lexer internals
+ */
typedef struct source Source;
struct source {
- const char *str; /* input pointer */
- const char *start; /* start of current buffer */
+ /* input buffer */
+ XString xs;
+ /* memory area, also checked in reclaim() */
+ Area *areap;
+ /* stacked source */
+ Source *next;
+ /* input pointer */
+ const char *str;
+ /* start of current buffer */
+ const char *start;
+ /* input file name */
+ const char *file;
+ /* extra data */
union {
- const char **strv; /* string [] */
- struct shf *shf; /* shell file */
- struct tbl *tblp; /* alias (SF_HASALIAS) */
- char *freeme; /* also for SREREAD */
+ /* string[] */
+ const char **strv;
+ /* shell file */
+ struct shf *shf;
+ /* alias (SF_HASALIAS) */
+ struct tbl *tblp;
+ /* (also for SREREAD) */
+ char *freeme;
} u;
- const char *file; /* input file name */
- int type; /* input type */
- int line; /* line number */
- int errline; /* line the error occurred on (0 if not set) */
- int flags; /* SF_* */
- Area *areap;
- Source *next; /* stacked source */
- XString xs; /* input buffer */
- char ugbuf[2]; /* buffer for ungetsc() (SREREAD) and
- * alias (SALIAS) */
+ /* flags */
+ int flags;
+ /* input type */
+ int type;
+ /* line number */
+ int line;
+ /* line the error occurred on (0 if not set) */
+ int errline;
+ /* buffer for ungetsc() (SREREAD) and alias (SALIAS) */
+ char ugbuf[2];
};
/* Source.type values */
#define SWORDSEP 6 /* string[] separator */
#define SALIAS 7 /* alias expansion */
#define SREREAD 8 /* read ahead to be re-scanned */
+#define SSTRINGCMDLINE 9 /* string from "mksh -c ..." */
/* Source.flags values */
#define SF_ECHO BIT(0) /* echo input to shlout */
#define SF_ALIAS BIT(1) /* faking space at end of alias */
#define SF_ALIASEND BIT(2) /* faking space at end of alias */
#define SF_TTY BIT(3) /* type == SSTDIN & it is a tty */
-#define SF_FIRST BIT(4) /* initial state (to ignore UTF-8 BOM) */
-#define SF_HASALIAS BIT(5) /* u.tblp valid (SALIAS, SEOF) */
+#define SF_HASALIAS BIT(4) /* u.tblp valid (SALIAS, SEOF) */
+#define SF_MAYEXEC BIT(5) /* special sh -c optimisation hack */
typedef union {
int i;
#define BANG 278 /* ! */
#define DBRACKET 279 /* [[ .. ]] */
#define COPROC 280 /* |& */
+#define BRKEV 281 /* ;| */
+#define BRKFT 282 /* ;& */
#define YYERRCODE 300
/* flags to yylex */
#define ALIAS BIT(2) /* recognise alias */
#define KEYWORD BIT(3) /* recognise keywords */
#define LETEXPR BIT(4) /* get expression inside (( )) */
-#define VARASN BIT(5) /* check for var=word */
-#define ARRAYVAR BIT(6) /* parse x[1 & 2] as one word */
+#define CMDASN BIT(5) /* parse x[1 & 2] as one word, for typeset */
+#define HEREDOC BIT(6) /* parsing a here document body */
#define ESACONLY BIT(7) /* only accept esac keyword */
#define CMDWORD BIT(8) /* parsing simple command (alias related) */
#define HEREDELIM BIT(9) /* parsing <<,<<- delimiter */
#define LQCHAR BIT(10) /* source string contains QCHAR */
-#define HEREDOC BIT(11) /* parsing a here document */
-#define LETARRAY BIT(12) /* copy expression inside =( ) */
-#define HERES 10 /* max << in line */
+#define HERES 10 /* max number of << in line */
+
+#ifdef MKSH_EBCDIC
+#define CTRL_AT (0x00U)
+#define CTRL_A (0x01U)
+#define CTRL_B (0x02U)
+#define CTRL_C (0x03U)
+#define CTRL_D (0x37U)
+#define CTRL_E (0x2DU)
+#define CTRL_F (0x2EU)
+#define CTRL_G (0x2FU)
+#define CTRL_H (0x16U)
+#define CTRL_I (0x05U)
+#define CTRL_J (0x15U)
+#define CTRL_K (0x0BU)
+#define CTRL_L (0x0CU)
+#define CTRL_M (0x0DU)
+#define CTRL_N (0x0EU)
+#define CTRL_O (0x0FU)
+#define CTRL_P (0x10U)
+#define CTRL_Q (0x11U)
+#define CTRL_R (0x12U)
+#define CTRL_S (0x13U)
+#define CTRL_T (0x3CU)
+#define CTRL_U (0x3DU)
+#define CTRL_V (0x32U)
+#define CTRL_W (0x26U)
+#define CTRL_X (0x18U)
+#define CTRL_Y (0x19U)
+#define CTRL_Z (0x3FU)
+#define CTRL_BO (0x27U)
+#define CTRL_BK (0x1CU)
+#define CTRL_BC (0x1DU)
+#define CTRL_CA (0x1EU)
+#define CTRL_US (0x1FU)
+#define CTRL_QM (0x07U)
+#else
+#define CTRL_AT (0x00U)
+#define CTRL_A (0x01U)
+#define CTRL_B (0x02U)
+#define CTRL_C (0x03U)
+#define CTRL_D (0x04U)
+#define CTRL_E (0x05U)
+#define CTRL_F (0x06U)
+#define CTRL_G (0x07U)
+#define CTRL_H (0x08U)
+#define CTRL_I (0x09U)
+#define CTRL_J (0x0AU)
+#define CTRL_K (0x0BU)
+#define CTRL_L (0x0CU)
+#define CTRL_M (0x0DU)
+#define CTRL_N (0x0EU)
+#define CTRL_O (0x0FU)
+#define CTRL_P (0x10U)
+#define CTRL_Q (0x11U)
+#define CTRL_R (0x12U)
+#define CTRL_S (0x13U)
+#define CTRL_T (0x14U)
+#define CTRL_U (0x15U)
+#define CTRL_V (0x16U)
+#define CTRL_W (0x17U)
+#define CTRL_X (0x18U)
+#define CTRL_Y (0x19U)
+#define CTRL_Z (0x1AU)
+#define CTRL_BO (0x1BU)
+#define CTRL_BK (0x1CU)
+#define CTRL_BC (0x1DU)
+#define CTRL_CA (0x1EU)
+#define CTRL_US (0x1FU)
+#define CTRL_QM (0x7FU)
+#endif
-#undef CTRL
-#define CTRL(x) ((x) == '?' ? 0x7F : (x) & 0x1F) /* ASCII */
-#define UNCTRL(x) ((x) ^ 0x40) /* ASCII */
+#define IDENT 64
EXTERN Source *source; /* yyparse/yylex source */
-EXTERN YYSTYPE yylval; /* result from yylex */
-EXTERN struct ioword *heres [HERES], **herep;
-EXTERN char ident [IDENT+1];
+EXTERN YYSTYPE yylval; /* result from yylex */
+EXTERN struct ioword *heres[HERES], **herep;
+EXTERN char ident[IDENT + 1];
-#define HISTORYSIZE 500 /* size of saved history */
+EXTERN char **history; /* saved commands */
+EXTERN char **histptr; /* last history item */
+EXTERN mksh_ari_t histsize; /* history size */
-EXTERN char **history; /* saved commands */
-EXTERN char **histptr; /* last history item */
-EXTERN int histsize; /* history size */
+/* flags to histsave */
+#define HIST_FLUSH 0
+#define HIST_QUEUE 1
+#define HIST_APPEND 2
+#define HIST_STORE 3
+#define HIST_NOTE 4
/* user and system time of last j_waitjed job */
EXTERN struct timeval j_usrtime, j_systime;
+#define notok2mul(max, val, c) (((val) != 0) && ((c) != 0) && \
+ (((max) / (c)) < (val)))
+#define notok2add(max, val, c) ((val) > ((max) - (c)))
+#define notoktomul(val, cnst) notok2mul(SIZE_MAX, (val), (cnst))
+#define notoktoadd(val, cnst) notok2add(SIZE_MAX, (val), (cnst))
+#define checkoktoadd(val, cnst) do { \
+ if (notoktoadd((val), (cnst))) \
+ internal_errorf(Tintovfl, (size_t)(val), \
+ '+', (size_t)(cnst)); \
+} while (/* CONSTCOND */ 0)
+
+
/* lalloc.c */
void ainit(Area *);
void afreeall(Area *);
/* these cannot fail and can take NULL (not for ap) */
-#define alloc(n, ap) aresize(NULL, (n), (ap))
+#define alloc(n, ap) aresize(NULL, (n), (ap))
+#define alloc2(m, n, ap) aresize2(NULL, (m), (n), (ap))
void *aresize(void *, size_t, Area *);
+void *aresize2(void *, size_t, size_t, Area *);
void afree(void *, Area *); /* can take NULL */
/* edit.c */
+#ifndef MKSH_NO_CMDLINE_EDITING
#ifndef MKSH_SMALL
int x_bind(const char *, const char *, bool, bool);
#else
int x_bind(const char *, const char *, bool);
#endif
void x_init(void);
-int x_read(char *, size_t);
+#ifdef DEBUG_LEAKS
+void x_done(void);
+#endif
+int x_read(char *);
+#endif
+void x_mkraw(int, mksh_ttyst *, bool);
+void x_initterm(const char *);
/* eval.c */
char *substitute(const char *, int);
char **eval(const char **, int);
char *evalonestr(const char *cp, int);
char *debunk(char *, const char *, size_t);
void expand(const char *, XPtrV *, int);
-int glob_str(char *, XPtrV *, int);
+int glob_str(char *, XPtrV *, bool);
+char *do_tilde(char *);
/* exec.c */
int execute(struct op * volatile, volatile int, volatile int * volatile);
-int shcomexec(const char **);
+int c_builtin(const char **);
+struct tbl *get_builtin(const char *);
struct tbl *findfunc(const char *, uint32_t, bool);
int define(const char *, struct op *);
-void builtin(const char *, int (*)(const char **));
+const char *builtin(const char *, int (*)(const char **));
struct tbl *findcom(const char *, int);
-void flushcom(int);
-const char *search(const char *, const char *, int, int *);
-int search_access(const char *, int, int *);
-int pr_menu(const char * const *);
-int pr_list(char * const *);
+void flushcom(bool);
+int search_access(const char *, int);
+const char *search_path(const char *, const char *, int, int *);
+void pr_menu(const char * const *);
+void pr_list(struct columnise_opts *, char * const *);
+int herein(struct ioword *, char **);
/* expr.c */
int evaluate(const char *, mksh_ari_t *, int, bool);
int v_evaluate(struct tbl *, const char *, volatile int, bool);
size_t utf_mbtowc(unsigned int *, const char *);
size_t utf_wctomb(char *, unsigned int);
int utf_widthadj(const char *, const char **);
-int utf_mbswidth(const char *);
-const char *utf_skipcols(const char *, int);
-size_t utf_ptradj(const char *);
-#ifndef MKSH_mirbsd_wcwidth
-int utf_wcwidth(unsigned int);
+size_t utf_mbswidth(const char *) MKSH_A_PURE;
+const char *utf_skipcols(const char *, int, int *);
+size_t utf_ptradj(const char *) MKSH_A_PURE;
+#ifdef MIRBSD_BOOTFLOPPY
+#define utf_wcwidth(i) wcwidth((wchar_t)(i))
+#else
+int utf_wcwidth(unsigned int) MKSH_A_PURE;
#endif
+int ksh_access(const char *, int);
+struct tbl *tempvar(const char *);
/* funcs.c */
int c_hash(const char **);
-int c_cd(const char **);
int c_pwd(const char **);
int c_print(const char **);
#ifdef MKSH_PRINTF_BUILTIN
int c_whence(const char **);
int c_command(const char **);
int c_typeset(const char **);
+bool valid_alias_name(const char *);
int c_alias(const char **);
int c_unalias(const char **);
int c_let(const char **);
int c_kill(const char **);
void getopts_reset(int);
int c_getopts(const char **);
+#ifndef MKSH_NO_CMDLINE_EDITING
int c_bind(const char **);
-int c_label(const char **);
+#endif
int c_shift(const char **);
int c_umask(const char **);
int c_dot(const char **);
int timex(struct op *, int, volatile int *);
void timex_hook(struct op *, char ** volatile *);
int c_exec(const char **);
-int c_builtin(const char **);
int c_test(const char **);
#if HAVE_MKNOD
int c_mknod(const char **);
#endif
int c_realpath(const char **);
int c_rename(const char **);
+int c_cat(const char **);
+int c_sleep(const char **);
/* histrap.c */
void init_histvec(void);
void hist_init(Source *);
#if HAVE_PERSISTENT_HISTORY
void hist_finish(void);
#endif
-void histsave(int *, const char *, bool, bool);
+void histsave(int *, const char *, int, bool);
#if !defined(MKSH_SMALL) && HAVE_PERSISTENT_HISTORY
bool histsync(void);
#endif
int c_fc(const char **);
-void sethistsize(int);
+void sethistsize(mksh_ari_t);
#if HAVE_PERSISTENT_HISTORY
void sethistfile(const char *);
#endif
-char **histpos(void);
+#if !defined(MKSH_NO_CMDLINE_EDITING) && !MKSH_S_NOVI
+char **histpos(void) MKSH_A_PURE;
int histnum(int);
-int findhist(int, int, const char *, int);
-int findhistrel(const char *);
+#endif
+int findhist(int, int, const char *, bool) MKSH_A_PURE;
char **hist_get_newest(bool);
void inittraps(void);
void alarm_init(void);
-Trap *gettrap(const char *, int);
+Trap *gettrap(const char *, bool, bool);
void trapsig(int);
void intrcheck(void);
int fatal_trap_check(void);
int trap_pending(void);
void runtraps(int intr);
-void runtrap(Trap *);
+void runtrap(Trap *, bool);
void cleartraps(void);
void restoresigs(void);
void settrap(Trap *, const char *);
-int block_pipe(void);
-void restore_pipe(int);
+bool block_pipe(void);
+void restore_pipe(void);
int setsig(Trap *, sig_t, int);
void setexecsig(Trap *, int);
+#if HAVE_FLOCK || HAVE_LOCK_FCNTL
+void mksh_lockfd(int);
+void mksh_unlkfd(int);
+#endif
/* jobs.c */
void j_init(void);
void j_exit(void);
#ifndef MKSH_UNEMPLOYED
int j_resume(const char *, int);
#endif
+#if !defined(MKSH_UNEMPLOYED) && HAVE_GETSID
+void j_suspend(void);
+#endif
int j_jobs(const char *, int, int);
-int j_njobs(void);
void j_notify(void);
pid_t j_async(void);
int j_stopped_running(void);
/* lex.c */
int yylex(int);
+void yyskiputf8bom(void);
void yyerror(const char *, ...)
MKSH_A_NORETURN
- MKSH_A_FORMAT(printf, 1, 2);
+ MKSH_A_FORMAT(__printf__, 1, 2);
Source *pushs(int, Area *);
void set_prompt(int, Source *);
-void pprompt(const char *, int);
-int promptlen(const char *);
+int pprompt(const char *, int);
/* main.c */
-int include(const char *, int, const char **, int);
+int include(const char *, int, const char **, bool);
int command(const char *, int);
-int shell(Source *volatile, int volatile);
+int shell(Source * volatile, volatile int);
+/* argument MUST NOT be 0 */
void unwind(int) MKSH_A_NORETURN;
void newenv(int);
void quitenv(struct shf *);
void cleanup_proc_env(void);
void errorf(const char *, ...)
MKSH_A_NORETURN
- MKSH_A_FORMAT(printf, 1, 2);
+ MKSH_A_FORMAT(__printf__, 1, 2);
+void errorfx(int, const char *, ...)
+ MKSH_A_NORETURN
+ MKSH_A_FORMAT(__printf__, 2, 3);
void warningf(bool, const char *, ...)
- MKSH_A_FORMAT(printf, 2, 3);
+ MKSH_A_FORMAT(__printf__, 2, 3);
void bi_errorf(const char *, ...)
- MKSH_A_FORMAT(printf, 1, 2);
-#define errorfz() errorf("\1")
-#define bi_errorfz() bi_errorf("\1")
-void internal_verrorf(const char *, va_list)
- MKSH_A_FORMAT(printf, 1, 0);
+ MKSH_A_FORMAT(__printf__, 1, 2);
+#define errorfz() errorf(NULL)
+#define errorfxz(rc) errorfx((rc), NULL)
+#define bi_errorfz() bi_errorf(NULL)
void internal_errorf(const char *, ...)
MKSH_A_NORETURN
- MKSH_A_FORMAT(printf, 1, 2);
+ MKSH_A_FORMAT(__printf__, 1, 2);
void internal_warningf(const char *, ...)
- MKSH_A_FORMAT(printf, 1, 2);
+ MKSH_A_FORMAT(__printf__, 1, 2);
void error_prefix(bool);
void shellf(const char *, ...)
- MKSH_A_FORMAT(printf, 1, 2);
+ MKSH_A_FORMAT(__printf__, 1, 2);
void shprintf(const char *, ...)
- MKSH_A_FORMAT(printf, 1, 2);
+ MKSH_A_FORMAT(__printf__, 1, 2);
int can_seek(int);
void initio(void);
+void recheck_ctype(void);
int ksh_dup2(int, int, bool);
short savefd(int);
void restfd(int, int);
int coproc_getfd(int, const char **);
void coproc_cleanup(int);
struct temp *maketemp(Area *, Temp_type, struct temp **);
-#define hash(s) oaathash_full((const uint8_t *)(s))
-uint32_t oaathash_full(register const uint8_t *);
-uint32_t hashmem(const void *, size_t);
-void ktinit(struct table *, Area *, size_t);
-struct tbl *ktsearch(struct table *, const char *, uint32_t);
+void ktinit(Area *, struct table *, uint8_t);
+struct tbl *ktscan(struct table *, const char *, uint32_t, struct tbl ***);
+/* table, name (key) to search for, hash(n) */
+#define ktsearch(tp, s, h) ktscan((tp), (s), (h), NULL)
struct tbl *ktenter(struct table *, const char *, uint32_t);
#define ktdelete(p) do { p->flag = 0; } while (/* CONSTCOND */ 0)
void ktwalk(struct tstate *, struct table *);
struct tbl *ktnext(struct tstate *);
struct tbl **ktsort(struct table *);
+#ifdef DF
+void DF(const char *, ...)
+ MKSH_A_FORMAT(__printf__, 1, 2);
+#endif
/* misc.c */
-void setctypes(const char *, int);
-void initctypes(void);
-size_t option(const char *);
+size_t option(const char *) MKSH_A_PURE;
char *getoptions(void);
-void change_flag(enum sh_flag, int, unsigned int);
+void change_flag(enum sh_flag, int, bool);
+void change_xtrace(unsigned char, bool);
int parse_args(const char **, int, bool *);
int getn(const char *, int *);
-int bi_getn(const char *, int *);
int gmatchx(const char *, const char *, bool);
-int has_globbing(const char *, const char *);
-const unsigned char *pat_scan(const unsigned char *, const unsigned char *, int);
-int xstrcmp(const void *, const void *);
+bool has_globbing(const char *) MKSH_A_PURE;
+int ascstrcmp(const void *, const void *) MKSH_A_PURE;
+int ascpstrcmp(const void *, const void *) MKSH_A_PURE;
void ksh_getopt_reset(Getopt *, int);
int ksh_getopt(const char **, Getopt *, const char *);
-void print_value_quoted(const char *);
-void print_columns(struct shf *, int,
- char *(*)(char *, int, int, const void *),
- const void *, int, int, bool);
-void strip_nuls(char *, int);
-int blocking_read(int, char *, int)
- MKSH_A_BOUNDED(buffer, 2, 3);
+void print_value_quoted(struct shf *, const char *);
+char *quote_value(const char *);
+void print_columns(struct columnise_opts *, unsigned int,
+ void (*)(char *, size_t, unsigned int, const void *),
+ const void *, size_t, size_t);
+void strip_nuls(char *, size_t)
+ MKSH_A_BOUNDED(__string__, 1, 2);
+ssize_t blocking_read(int, char *, size_t)
+ MKSH_A_BOUNDED(__buffer__, 2, 3);
int reset_nonblock(int);
-char *ksh_get_wd(size_t *);
-int make_path(const char *, const char *, char **, XString *, int *);
+char *ksh_get_wd(void);
+char *do_realpath(const char *);
void simplify_path(char *);
-void set_current_wd(char *);
-#ifdef MKSH_SMALL
-char *strdup_(const char *, Area *);
-char *strndup_(const char *, size_t, Area *);
+void set_current_wd(const char *);
+int c_cd(const char **);
+#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
+char *strdup_i(const char *, Area *);
+char *strndup_i(const char *, size_t, Area *);
#endif
int unbksl(bool, int (*)(void), void (*)(int));
+#ifdef __OS2__
+/* os2.c */
+void os2_init(int *, const char ***);
+void setextlibpath(const char *, const char *);
+int access_ex(int (*)(const char *, int), const char *, int);
+int stat_ex(const char *, struct stat *);
+const char *real_exec_name(const char *);
+#endif
/* shf.c */
struct shf *shf_open(const char *, int, int, int);
struct shf *shf_fdopen(int, int, struct shf *);
struct shf *shf_reopen(int, int, struct shf *);
-struct shf *shf_sopen(char *, int, int, struct shf *);
+struct shf *shf_sopen(char *, ssize_t, int, struct shf *);
int shf_close(struct shf *);
int shf_fdclose(struct shf *);
char *shf_sclose(struct shf *);
int shf_flush(struct shf *);
-int shf_read(char *, int, struct shf *);
-char *shf_getse(char *, int, struct shf *);
+ssize_t shf_read(char *, ssize_t, struct shf *);
+char *shf_getse(char *, ssize_t, struct shf *);
int shf_getchar(struct shf *s);
int shf_ungetc(int, struct shf *);
+#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
+int shf_getc(struct shf *);
+int shf_putc(int, struct shf *);
+#else
+#define shf_getc shf_getc_i
+#define shf_putc shf_putc_i
+#endif
int shf_putchar(int, struct shf *);
-int shf_puts(const char *, struct shf *);
-int shf_write(const char *, int, struct shf *);
-int shf_fprintf(struct shf *, const char *, ...)
- MKSH_A_FORMAT(printf, 2, 3);
-int shf_snprintf(char *, int, const char *, ...)
- MKSH_A_FORMAT(printf, 3, 4)
- MKSH_A_BOUNDED(string, 1, 2);
+ssize_t shf_puts(const char *, struct shf *);
+ssize_t shf_write(const char *, ssize_t, struct shf *);
+ssize_t shf_fprintf(struct shf *, const char *, ...)
+ MKSH_A_FORMAT(__printf__, 2, 3);
+ssize_t shf_snprintf(char *, ssize_t, const char *, ...)
+ MKSH_A_FORMAT(__printf__, 3, 4)
+ MKSH_A_BOUNDED(__string__, 1, 2);
char *shf_smprintf(const char *, ...)
- MKSH_A_FORMAT(printf, 1, 2);
-int shf_vfprintf(struct shf *, const char *, va_list)
- MKSH_A_FORMAT(printf, 2, 0);
+ MKSH_A_FORMAT(__printf__, 1, 2);
+ssize_t shf_vfprintf(struct shf *, const char *, va_list)
+ MKSH_A_FORMAT(__printf__, 2, 0);
+void set_ifs(const char *);
/* syn.c */
void initkeywords(void);
-struct op *compile(Source *);
+struct op *compile(Source *, bool, bool);
+bool parse_usec(const char *, struct timeval *);
+char *yyrecursive(int);
+void yyrecursive_pop(bool);
/* tree.c */
-int fptreef(struct shf *, int, const char *, ...);
-char *snptreef(char *, int, const char *, ...);
+void fptreef(struct shf *, int, const char *, ...);
+char *snptreef(char *, ssize_t, const char *, ...);
struct op *tcopy(struct op *, Area *);
char *wdcopy(const char *, Area *);
const char *wdscan(const char *, int);
-char *wdstrip(const char *, bool, bool);
+#define WDS_TPUTS BIT(0) /* tputS (dumpwdvar) mode */
+char *wdstrip(const char *, int);
void tfree(struct op *, Area *);
+void dumpchar(struct shf *, int);
+void dumptree(struct shf *, struct op *);
+void dumpwdvar(struct shf *, const char *);
+void dumpioact(struct shf *shf, struct op *t);
+void vistree(char *, size_t, struct op *)
+ MKSH_A_BOUNDED(__string__, 1, 2);
+void fpFUNCTf(struct shf *, int, bool, const char *, struct op *);
/* var.c */
void newblock(void);
void popblock(void);
void initvar(void);
+struct block *varsearch(struct block *, struct tbl **, const char *, uint32_t);
struct tbl *global(const char *);
+struct tbl *isglobal(const char *, bool);
struct tbl *local(const char *, bool);
char *str_val(struct tbl *);
int setstr(struct tbl *, const char *, int);
struct tbl *setint_v(struct tbl *, struct tbl *, bool);
void setint(struct tbl *, mksh_ari_t);
-struct tbl *typeset(const char *, Tflag, Tflag, int, int)
- MKSH_A_NONNULL((nonnull (1)));
+void setint_n(struct tbl *, mksh_ari_t, int);
+struct tbl *typeset(const char *, uint32_t, uint32_t, int, int);
void unset(struct tbl *, int);
-const char *skip_varname(const char *, int);
-const char *skip_wdvarname(const char *, int);
-int is_wdvarname(const char *, int);
-int is_wdvarassign(const char *);
+const char *skip_varname(const char *, bool) MKSH_A_PURE;
+const char *skip_wdvarname(const char *, bool) MKSH_A_PURE;
+int is_wdvarname(const char *, bool) MKSH_A_PURE;
+int is_wdvarassign(const char *) MKSH_A_PURE;
+struct tbl *arraysearch(struct tbl *, uint32_t);
char **makenv(void);
-void change_random(const void *, size_t);
void change_winsz(void);
-int array_ref_len(const char *);
+size_t array_ref_len(const char *) MKSH_A_PURE;
char *arrayname(const char *);
mksh_uari_t set_array(const char *, bool, const char **);
+uint32_t hash(const void *) MKSH_A_PURE;
+uint32_t chvt_rndsetup(const void *, size_t) MKSH_A_PURE;
+mksh_ari_t rndget(void);
+void rndset(unsigned long);
+void rndpush(const void *);
+void record_match(const char *);
enum Test_op {
- TO_NONOP = 0, /* non-operator */
+ /* non-operator */
+ TO_NONOP = 0,
/* unary operators */
- TO_STNZE, TO_STZER, TO_OPTION,
+ TO_STNZE, TO_STZER, TO_ISSET, TO_OPTION,
TO_FILAXST,
TO_FILEXST,
TO_FILREG, TO_FILBDEV, TO_FILCDEV, TO_FILSYM, TO_FILFIFO, TO_FILSOCK,
typedef struct test_env {
union {
- const char **wp;/* used by ptest_* */
- XPtrV *av; /* used by dbtestp_* */
+ const char **wp; /* used by ptest_* */
+ XPtrV *av; /* used by dbtestp_* */
} pos;
- const char **wp_end; /* used by ptest_* */
+ const char **wp_end; /* used by ptest_* */
Test_op (*isa)(struct test_env *, Test_meta);
const char *(*getopnd) (struct test_env *, Test_op, bool);
int (*eval)(struct test_env *, Test_op, const char *, const char *, bool);
void (*error)(struct test_env *, int, const char *);
- int flags; /* TEF_* */
+ int flags; /* TEF_* */
} Test_env;
-extern const char *const dbtest_tokens[];
+extern const char * const dbtest_tokens[];
-Test_op test_isop(Test_meta, const char *);
+Test_op test_isop(Test_meta, const char *) MKSH_A_PURE;
int test_eval(Test_env *, Test_op, const char *, const char *, bool);
int test_parse(Test_env *);
-EXTERN int tty_fd I__(-1); /* dup'd tty file descriptor */
-EXTERN int tty_devtty; /* true if tty_fd is from /dev/tty */
-EXTERN struct termios tty_state; /* saved tty state */
+/* tty_fd is not opened O_BINARY, it's thus never read/written */
+EXTERN int tty_fd E_INIT(-1); /* dup'd tty file descriptor */
+EXTERN bool tty_devtty; /* true if tty_fd is from /dev/tty */
+EXTERN mksh_ttyst tty_state; /* saved tty state */
+EXTERN bool tty_hasstate; /* true if tty_state is valid */
+
+extern int tty_init_fd(void); /* initialise tty_fd, tty_devtty */
+
+#ifdef __OS2__
+#define binopen2(path,flags) __extension__({ \
+ int binopen2_fd = open((path), (flags) | O_BINARY); \
+ if (binopen2_fd >= 0) \
+ setmode(binopen2_fd, O_BINARY); \
+ (binopen2_fd); \
+})
+#define binopen3(path,flags,mode) __extension__({ \
+ int binopen3_fd = open((path), (flags) | O_BINARY, (mode)); \
+ if (binopen3_fd >= 0) \
+ setmode(binopen3_fd, O_BINARY); \
+ (binopen3_fd); \
+})
+#else
+#define binopen2(path,flags) open((path), (flags) | O_BINARY)
+#define binopen3(path,flags,mode) open((path), (flags) | O_BINARY, (mode))
+#endif
-extern void tty_init(bool, bool);
-extern void tty_close(void);
+#ifdef MKSH_DOSPATH
+#define mksh_drvltr(s) __extension__({ \
+ const char *mksh_drvltr_s = (s); \
+ (ctype(mksh_drvltr_s[0], C_ALPHA) && mksh_drvltr_s[1] == ':'); \
+})
+#define mksh_abspath(s) __extension__({ \
+ const char *mksh_abspath_s = (s); \
+ (mksh_cdirsep(mksh_abspath_s[0]) || \
+ (mksh_drvltr(mksh_abspath_s) && \
+ mksh_cdirsep(mksh_abspath_s[2]))); \
+})
+#define mksh_cdirsep(c) __extension__({ \
+ char mksh_cdirsep_c = (c); \
+ (mksh_cdirsep_c == '/' || mksh_cdirsep_c == '\\'); \
+})
+#define mksh_sdirsep(s) strpbrk((s), "/\\")
+#define mksh_vdirsep(s) __extension__({ \
+ const char *mksh_vdirsep_s = (s); \
+ (((mksh_drvltr(mksh_vdirsep_s) && \
+ !mksh_cdirsep(mksh_vdirsep_s[2])) ? (!0) : \
+ (mksh_sdirsep(mksh_vdirsep_s) != NULL)) && \
+ (strcmp(mksh_vdirsep_s, T_builtin) != 0)); \
+})
+int getdrvwd(char **, unsigned int);
+#else
+#define mksh_abspath(s) (ord((s)[0]) == ORD('/'))
+#define mksh_cdirsep(c) (ord(c) == ORD('/'))
+#define mksh_sdirsep(s) strchr((s), '/')
+#define mksh_vdirsep(s) vstrchr((s), '/')
+#endif
/* be sure not to interfere with anyone else's idea about EXTERN */
#ifdef EXTERN_DEFINED
# undef EXTERN_DEFINED
# undef EXTERN
#endif
-#undef I__
+#undef E_INIT
#endif /* !MKSH_INCLUDES_ONLY */
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