Adding upstream version 5.1.upstream/5.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 371 insertions, 0 deletions

diff --git a/general.h b/general.h
new file mode 100644
index 0000000..7e4db8e
--- /dev/null
+++ b/general.h
@@ -0,0 +1,371 @@
+/* general.h -- defines that everybody likes to use. */
+
+/* Copyright (C) 1993-2020 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Bash is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#if !defined (_GENERAL_H_)
+#define _GENERAL_H_
+
+#include "stdc.h"
+
+#include "bashtypes.h"
+#include "chartypes.h"
+
+#if defined (HAVE_SYS_RESOURCE_H) && defined (RLIMTYPE)
+#  if defined (HAVE_SYS_TIME_H)
+#    include <sys/time.h>
+#  endif
+#  include <sys/resource.h>
+#endif
+
+#if defined (HAVE_STRING_H)
+#  include <string.h>
+#else
+#  include <strings.h>
+#endif /* !HAVE_STRING_H */
+
+#if defined (HAVE_LIMITS_H)
+#  include <limits.h>
+#endif
+
+#include "xmalloc.h"
+
+/* NULL pointer type. */
+#if !defined (NULL)
+#  if defined (__STDC__)
+#    define NULL ((void *) 0)
+#  else
+#    define NULL 0x0
+#  endif /* !__STDC__ */
+#endif /* !NULL */
+
+/* Hardly used anymore */
+#define pointer_to_int(x)	(int)((char *)x - (char *)0)
+
+#if defined (alpha) && defined (__GNUC__) && !defined (strchr) && !defined (__STDC__)
+extern char *strchr (), *strrchr ();
+#endif
+
+#if !defined (strcpy) && (defined (HAVE_DECL_STRCPY) && !HAVE_DECL_STRCPY)
+extern char *strcpy PARAMS((char *, const char *));
+#endif
+
+#if !defined (savestring)
+#  define savestring(x) (char *)strcpy (xmalloc (1 + strlen (x)), (x))
+#endif
+
+#ifndef member
+#  define member(c, s) ((c) ? ((char *)mbschr ((s), (c)) != (char *)NULL) : 0)
+#endif
+
+#ifndef whitespace
+#define whitespace(c) (((c) == ' ') || ((c) == '\t'))
+#endif
+
+#ifndef CHAR_MAX
+#  ifdef __CHAR_UNSIGNED__
+#    define CHAR_MAX	0xff
+#  else
+#    define CHAR_MAX	0x7f
+#  endif
+#endif
+
+#ifndef CHAR_BIT
+#  define CHAR_BIT 8
+#endif
+
+/* Nonzero if the integer type T is signed.  */
+#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
+
+/* The width in bits of the integer type or expression T.
+   Padding bits are not supported; this is checked at compile-time below.  */
+#define TYPE_WIDTH(t) (sizeof (t) * CHAR_BIT)
+
+/* Bound on length of the string representing an unsigned integer
+   value representable in B bits.  log10 (2.0) < 146/485.  The
+      smallest value of B where this bound is not tight is 2621.  */
+#define INT_BITS_STRLEN_BOUND(b) (((b) * 146 + 484) / 485)
+
+/* Bound on length of the string representing an integer value of type T.
+   Subtract one for the sign bit if T is signed;
+   302 / 1000 is log10 (2) rounded up;
+   add one for integer division truncation;
+   add one more for a minus sign if t is signed.  */
+#define INT_STRLEN_BOUND(t) \
+  ((TYPE_WIDTH (t) - TYPE_SIGNED (t)) * 302 / 1000 \
+   + 1 + TYPE_SIGNED (t))
+
+/* Updated version adapted from gnulib/intprops.h, not used right now.
+   Changes the approximation of log10(2) from 302/1000 to 146/485. */
+#if 0
+#define INT_STRLEN_BOUND(t) \
+  (INT_BITS_STRLEN_BOUND (TYPE_WIDTH (t) - TYPE_SIGNED (t)) + TYPE_SIGNED(t))
+#endif
+
+/* Bound on buffer size needed to represent an integer type or expression T,
+   including the terminating null.  */
+#define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1)
+
+/* Define exactly what a legal shell identifier consists of. */
+#define legal_variable_starter(c) (ISALPHA(c) || (c == '_'))
+#define legal_variable_char(c)	(ISALNUM(c) || c == '_')
+
+/* Definitions used in subst.c and by the `read' builtin for field
+   splitting. */
+#define spctabnl(c)	((c) == ' ' || (c) == '\t' || (c) == '\n')
+
+/* All structs which contain a `next' field should have that field
+   as the first field in the struct.  This means that functions
+   can be written to handle the general case for linked lists. */
+typedef struct g_list {
+  struct g_list *next;
+} GENERIC_LIST;
+
+/* Here is a generic structure for associating character strings
+   with integers.  It is used in the parser for shell tokenization. */
+typedef struct {
+  char *word;
+  int token;
+} STRING_INT_ALIST;
+
+/* A macro to avoid making an unnecessary function call. */
+#define REVERSE_LIST(list, type) \
+  ((list && list->next) ? (type)list_reverse ((GENERIC_LIST *)list) \
+			: (type)(list))
+
+#if __GNUC__ > 1
+#  define FASTCOPY(s, d, n)  __builtin_memcpy ((d), (s), (n))
+#else /* !__GNUC__ */
+#  if !defined (HAVE_BCOPY)
+#    if !defined (HAVE_MEMMOVE)
+#      define FASTCOPY(s, d, n)  memcpy ((d), (s), (n))
+#    else
+#      define FASTCOPY(s, d, n)  memmove ((d), (s), (n))
+#    endif /* !HAVE_MEMMOVE */
+#  else /* HAVE_BCOPY */
+#    define FASTCOPY(s, d, n)  bcopy ((s), (d), (n))
+#  endif /* HAVE_BCOPY */
+#endif /* !__GNUC__ */
+
+/* String comparisons that possibly save a function call each. */
+#define STREQ(a, b) ((a)[0] == (b)[0] && strcmp(a, b) == 0)
+#define STREQN(a, b, n) ((n == 0) ? (1) \
+				  : ((a)[0] == (b)[0] && strncmp(a, b, n) == 0))
+
+/* More convenience definitions that possibly save system or libc calls. */
+#define STRLEN(s) (((s) && (s)[0]) ? ((s)[1] ? ((s)[2] ? strlen(s) : 2) : 1) : 0)
+#define FREE(s)  do { if (s) free (s); } while (0)
+#define MEMBER(c, s) (((c) && c == (s)[0] && !(s)[1]) || (member(c, s)))
+
+/* A fairly hairy macro to check whether an allocated string has more room,
+   and to resize it using xrealloc if it does not.
+   STR is the string (char *)
+   CIND is the current index into the string (int)
+   ROOM is the amount of additional room we need in the string (int)
+   CSIZE is the currently-allocated size of STR (int)
+   SINCR is how much to increment CSIZE before calling xrealloc (int) */
+
+#define RESIZE_MALLOCED_BUFFER(str, cind, room, csize, sincr) \
+  do { \
+    if ((cind) + (room) >= csize) \
+      { \
+	while ((cind) + (room) >= csize) \
+	  csize += (sincr); \
+	str = xrealloc (str, csize); \
+      } \
+  } while (0)
+
+/* Function pointers can be declared as (Function *)foo. */
+#if !defined (_FUNCTION_DEF)
+#  define _FUNCTION_DEF
+typedef int Function ();
+typedef void VFunction ();
+typedef char *CPFunction ();		/* no longer used */
+typedef char **CPPFunction ();		/* no longer used */
+#endif /* _FUNCTION_DEF */
+
+#ifndef SH_FUNCTION_TYPEDEF
+#  define SH_FUNCTION_TYPEDEF
+
+/* Shell function typedefs with prototypes */
+/* `Generic' function pointer typedefs */
+
+typedef int sh_intfunc_t PARAMS((int));
+typedef int sh_ivoidfunc_t PARAMS((void));
+typedef int sh_icpfunc_t PARAMS((char *));
+typedef int sh_icppfunc_t PARAMS((char **));
+typedef int sh_iptrfunc_t PARAMS((PTR_T));
+
+typedef void sh_voidfunc_t PARAMS((void));
+typedef void sh_vintfunc_t PARAMS((int));
+typedef void sh_vcpfunc_t PARAMS((char *));
+typedef void sh_vcppfunc_t PARAMS((char **));
+typedef void sh_vptrfunc_t PARAMS((PTR_T));
+
+typedef int sh_wdesc_func_t PARAMS((WORD_DESC *));
+typedef int sh_wlist_func_t PARAMS((WORD_LIST *));
+
+typedef int sh_glist_func_t PARAMS((GENERIC_LIST *));
+
+typedef char *sh_string_func_t PARAMS((char *));	/* like savestring, et al. */
+
+typedef int sh_msg_func_t PARAMS((const char *, ...));	/* printf(3)-like */
+typedef void sh_vmsg_func_t PARAMS((const char *, ...));	/* printf(3)-like */
+
+/* Specific function pointer typedefs.  Most of these could be done
+   with #defines. */
+typedef void sh_sv_func_t PARAMS((char *));	/* sh_vcpfunc_t */
+typedef void sh_free_func_t PARAMS((PTR_T));	/* sh_vptrfunc_t */
+typedef void sh_resetsig_func_t PARAMS((int));	/* sh_vintfunc_t */
+
+typedef int sh_ignore_func_t PARAMS((const char *));	/* sh_icpfunc_t */
+
+typedef int sh_assign_func_t PARAMS((const char *));
+typedef int sh_wassign_func_t PARAMS((WORD_DESC *, int));
+
+typedef int sh_load_func_t PARAMS((char *));
+typedef void sh_unload_func_t PARAMS((char *));
+
+typedef int sh_builtin_func_t PARAMS((WORD_LIST *)); /* sh_wlist_func_t */
+
+#endif /* SH_FUNCTION_TYPEDEF */
+
+#define NOW	((time_t) time ((time_t *) 0))
+#define GETTIME(tv)	gettimeofday(&(tv), NULL)
+
+/* Some defines for calling file status functions. */
+#define FS_EXISTS	  0x1
+#define FS_EXECABLE	  0x2
+#define FS_EXEC_PREFERRED 0x4
+#define FS_EXEC_ONLY	  0x8
+#define FS_DIRECTORY	  0x10
+#define FS_NODIRS	  0x20
+#define FS_READABLE	  0x40
+
+/* Default maximum for move_to_high_fd */
+#define HIGH_FD_MAX	256
+
+/* The type of function passed as the fourth argument to qsort(3). */
+#ifdef __STDC__
+typedef int QSFUNC (const void *, const void *);
+#else
+typedef int QSFUNC ();
+#endif 
+
+/* Some useful definitions for Unix pathnames.  Argument convention:
+   x == string, c == character */
+
+#if !defined (__CYGWIN__)
+#  define ABSPATH(x)	((x)[0] == '/')
+#  define RELPATH(x)	((x)[0] != '/')
+#else /* __CYGWIN__ */
+#  define ABSPATH(x)	(((x)[0] && ISALPHA((unsigned char)(x)[0]) && (x)[1] == ':') || ISDIRSEP((x)[0]))
+#  define RELPATH(x)	(ABSPATH(x) == 0)
+#endif /* __CYGWIN__ */
+
+#define ROOTEDPATH(x)	(ABSPATH(x))
+
+#define DIRSEP	'/'
+#if !defined (__CYGWIN__)
+#  define ISDIRSEP(c)	((c) == '/')
+#else
+#  define ISDIRSEP(c)	((c) == '/' || (c) == '\\')
+#endif /* __CYGWIN__ */
+#define PATHSEP(c)	(ISDIRSEP(c) || (c) == 0)
+
+#define DOT_OR_DOTDOT(s)	(s[0] == '.' && (s[1] == 0 || (s[1] == '.' && s[2] == 0)))
+#if defined (HANDLE_MULTIBYTE)
+#define WDOT_OR_DOTDOT(w)	(w[0] == L'.' && (w[1] == L'\0' || (w[1] == L'.' && w[2] == L'\0')))
+#endif
+
+#if 0
+/* Declarations for functions defined in xmalloc.c */
+extern PTR_T xmalloc PARAMS((size_t));
+extern PTR_T xrealloc PARAMS((void *, size_t));
+extern void xfree PARAMS((void *));
+#endif
+
+/* Declarations for functions defined in general.c */
+extern void posix_initialize PARAMS((int));
+
+extern int num_posix_options PARAMS((void));
+extern char *get_posix_options PARAMS((char *));
+extern void set_posix_options PARAMS((const char *));
+
+extern void save_posix_options PARAMS((void));
+
+#if defined (RLIMTYPE)
+extern RLIMTYPE string_to_rlimtype PARAMS((char *));
+extern void print_rlimtype PARAMS((RLIMTYPE, int));
+#endif
+
+extern int all_digits PARAMS((const char *));
+extern int legal_number PARAMS((const char *, intmax_t *));
+extern int legal_identifier PARAMS((const char *));
+extern int importable_function_name PARAMS((const char *, size_t));
+extern int exportable_function_name PARAMS((const char *));
+extern int check_identifier PARAMS((WORD_DESC *, int));
+extern int valid_nameref_value PARAMS((const char *, int));
+extern int check_selfref PARAMS((const char *, char *, int));
+extern int legal_alias_name PARAMS((const char *, int));
+extern int line_isblank PARAMS((const char *));
+extern int assignment PARAMS((const char *, int));
+
+extern int sh_unset_nodelay_mode PARAMS((int));
+extern int sh_setclexec PARAMS((int));
+extern int sh_validfd PARAMS((int));
+extern int fd_ispipe PARAMS((int));
+extern void check_dev_tty PARAMS((void));
+extern int move_to_high_fd PARAMS((int, int, int));
+extern int check_binary_file PARAMS((const char *, int));
+
+#ifdef _POSIXSTAT_H_
+extern int same_file PARAMS((const char *, const char *, struct stat *, struct stat *));
+#endif
+
+extern int sh_openpipe PARAMS((int *));
+extern int sh_closepipe PARAMS((int *));
+
+extern int file_exists PARAMS((const char *));
+extern int file_isdir PARAMS((const char  *));
+extern int file_iswdir PARAMS((const char  *));
+extern int path_dot_or_dotdot PARAMS((const char *));
+extern int absolute_pathname PARAMS((const char *));
+extern int absolute_program PARAMS((const char *));
+
+extern char *make_absolute PARAMS((const char *, const char *));
+extern char *base_pathname PARAMS((char *));
+extern char *full_pathname PARAMS((char *));
+extern char *polite_directory_format PARAMS((char *));
+extern char *trim_pathname PARAMS((char *, int));
+extern char *printable_filename PARAMS((char *, int));
+
+extern char *extract_colon_unit PARAMS((char *, int *));
+
+extern void tilde_initialize PARAMS((void));
+extern char *bash_tilde_find_word PARAMS((const char *, int, int *));
+extern char *bash_tilde_expand PARAMS((const char *, int));
+
+extern int group_member PARAMS((gid_t));
+extern char **get_group_list PARAMS((int *));
+extern int *get_group_array PARAMS((int *));
+
+extern char *conf_standard_path PARAMS((void));
+extern int default_columns PARAMS((void));
+
+#endif	/* _GENERAL_H_ */