with Bash; see the file COPYING. If not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-#if !defined (_GENERAL_H)
-#define _GENERAL_H
+#if !defined (_GENERAL_H_)
+#define _GENERAL_H_
#include "stdc.h"
-/* just to make sure */
-#if defined (HAVE_UNISTD_H)
-# ifdef CRAY
-# define word __word
-# endif
-# include <unistd.h>
-# ifdef CRAY
-# undef word
-# endif
+/* Generic pointer type. */
+#if defined (__STDC__)
+# define PTR_T void *
+#else
+# define PTR_T char *
#endif
+/* NULL pointer type. */
#if !defined (NULL)
# if defined (__STDC__)
# define NULL ((void *) 0)
#define pointer_to_int(x) (int)((long)(x))
+extern char *xmalloc (), *xrealloc ();
+
+#if defined (alpha) && defined (__GNUC__) && !defined (strchr) && !defined (__STDC__)
+extern char *strchr (), *strrchr ();
+#endif
+
+#if !defined (strcpy)
+extern char *strcpy ();
+#endif
+
#if !defined (savestring)
- extern char *xmalloc ();
-# if !defined (strcpy)
- extern char *strcpy ();
-# endif
# define savestring(x) (char *)strcpy (xmalloc (1 + strlen (x)), (x))
#endif
+#ifndef member
+# define member(c, s) ((c) ? ((char *)strchr ((s), (c)) != (char *)NULL) : 0)
+#endif
+
#ifndef whitespace
#define whitespace(c) (((c) == ' ') || ((c) == '\t'))
#endif
#define digit_value(c) ((c) - '0')
#endif
+/* Define exactly what a legal shell identifier consists of. */
+#define legal_variable_starter(c) (isletter(c) || (c == '_'))
+#define legal_variable_char(c) (isletter (c) || digit (c) || c == '_')
+
/* Definitions used in subst.c and by the `read' builtin for field
splitting. */
#define spctabnl(c) ((c) == ' ' || (c) == '\t' || (c) == '\n')
-#if !defined (__STDC__) && !defined (strchr)
-extern char *strchr (), *strrchr ();
-#endif /* !strchr */
-
-#ifndef member
-# if defined (alpha) && defined (__GNUC__) /* XXX */
- extern char *strchr ();
-# endif
-# define member(c, s) ((c) ? ((char *)strchr ((s), (c)) != (char *)NULL) : 0)
-#endif
-
/* 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. */
/* A macro to avoid making an uneccessary function call. */
#define REVERSE_LIST(list, type) \
- ((list && list->next) ? (type)reverse_list ((GENERIC_LIST *)list) : (type)(list))
+ ((list && list->next) ? (type)reverse_list ((GENERIC_LIST *)list) \
+ : (type)(list))
#if __GNUC__ > 1
# define FASTCOPY(s, d, n) __builtin_memcpy (d, s, n)
#else /* !__GNUC__ */
-# if defined (USG) && !defined (HAVE_BCOPY)
-# if defined (MEMMOVE_MISSING)
+# 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 /* !MEMMOVE_MISSING */
-# else
+# endif /* !HAVE_MEMMOVE */
+# else /* HAVE_BCOPY */
# define FASTCOPY(s, d, n) bcopy (s, d, n)
-# endif /* !USG || HAVE_BCOPY */
+# endif /* HAVE_BCOPY */
#endif /* !__GNUC__ */
/* String comparisons that possibly save a function call each. */
#define FREE(s) do { if (s) free (s); } while (0)
#define MEMBER(c, s) (((c) && !(s)[1] && c == s[0]) || (member(c, s)))
-/* What type is a `generic' pointer? This is used as the first argument
- to xrealloc. */
-#if defined (__STDC__)
-typedef void *GENPTR;
-#else
-typedef char *GENPTR;
-#endif
+/* 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
+#if !defined (_FUNCTION_DEF)
+# define _FUNCTION_DEF
typedef int Function ();
typedef void VFunction ();
typedef char *CPFunction ();
#define FS_EXECABLE 0x2
#define FS_EXEC_PREFERRED 0x4
#define FS_EXEC_ONLY 0x8
+#define FS_DIRECTORY 0x10
+#define FS_NODIRS 0x20
-/* Posix and USG systems do not guarantee to restart a read () that is
- interrupted by a signal. */
-#if defined (USG) || defined (_POSIX_VERSION)
-# define NO_READ_RESTART_ON_SIGNAL
-#endif /* USG || _POSIX_VERSION */
-
-/* Here is a definition for set_signal_handler () which simply expands to
- a call to signal () for non-Posix systems. The code for set_signal_handler
- in the Posix case resides in general.c. */
+/* Declarations for functions defined in xmalloc.c */
+extern char *xmalloc __P((size_t));
+extern char *xrealloc __P((void *, size_t));
+extern void xfree __P((char *));
-#if defined (VOID_SIGHANDLER)
-# define sighandler void
-#else
-# define sighandler int
-#endif /* !VOID_SIGHANDLER */
+/* Declarations for functions defined in general.c */
+extern void posix_initialize __P((int));
-typedef sighandler SigHandler ();
+extern char *itos __P((int));
+extern long string_to_long __P((char *));
-#if !defined (_POSIX_VERSION)
-# define set_signal_handler(sig, handler) (SigHandler *)signal (sig, handler)
-#else
-extern SigHandler *set_signal_handler ();
-#endif /* _POSIX_VERSION */
+#if defined (RLIMTYPE)
+extern RLIMTYPE string_to_rlimtype __P((char *));
+extern void print_rlimtype __P((RLIMTYPE, int));
+#endif
-/* This function is defined in trap.c. */
-extern SigHandler *set_sigint_handler __P((void));
+extern void timeval_to_secs ();
+extern void print_timeval ();
+extern void clock_t_to_secs ();
+extern void print_time_in_hz ();
-/* Declarations for functions defined in general.c */
-extern char *xmalloc __P((int));
-extern char *xrealloc __P((void *, int));
-extern void xfree __P((char *));
-extern char *itos __P((int));
extern int all_digits __P((char *));
-extern long string_to_long __P((char *));
+extern int legal_number __P((char *, long *));
extern int legal_identifier __P((char *));
extern int check_identifier __P((WORD_DESC *, int));
+
extern void unset_nodelay_mode __P((int));
-extern void map_over_words __P((WORD_LIST *, Function *));
-
-extern void map_over_list __P((GENERIC_LIST *, Function *));
-extern GENERIC_LIST *reverse_list ();
-extern GENERIC_LIST *delete_element ();
-extern GENERIC_LIST *list_append ();
-extern int list_length ();
-extern int qsort_string_compare ();
-
-extern int find_name_in_list __P((char *, char **));
-extern int array_len __P((char **));
-extern void free_array __P((char **));
-extern char **copy_array __P((char **));
-extern void strip_leading __P((char *));
-extern void strip_trailing __P((char *, int));
+extern void check_dev_tty __P((void));
+extern int same_file (); /* too many problems with prototype */
+extern int move_to_high_fd __P((int, int));
+extern int check_binary_file __P((unsigned char *, int));
+
extern char *canonicalize_pathname __P((char *));
extern char *make_absolute __P((char *, char *));
extern int absolute_pathname __P((char *));
extern int absolute_program __P((char *));
extern char *base_pathname __P((char *));
extern char *full_pathname __P((char *));
-extern char *strindex __P((char *, char *));
-extern void set_lines_and_columns __P((int, int));
-extern void xbcopy __P((char *, char *, int));
extern char *polite_directory_format __P((char *));
-extern void tilde_initialize __P((void));
-
-#if !defined (strerror)
-extern char *strerror __P((int));
-#endif
-
-#if defined (RLIMTYPE)
-extern RLIMTYPE string_to_rlimtype __P((char *));
-extern void print_rlimtype __P((RLIMTYPE, int));
-#endif
-
-#if !defined (HAVE_STRCASECMP)
-extern int strnicmp __P((char *, char *, int));
-extern int stricmp __P((char *, char *));
-#else /* HAVE_STRCASECMP */
-# define stricmp strcasecmp
-# define strnicmp strncasecmp
-#endif /* HAVE_STRCASECMP */
-extern int dup2 __P((int, int));
-extern char *getwd __P((char *));
-extern int getdtablesize __P((void));
+extern char *extract_colon_unit __P((char *, int *));
-#if defined (USG) && !defined (HAVE_GETHOSTNAME)
-extern int gethostname __P((char *, int));
-#endif /* USG && !HAVE_GETHOSTNAME */
+extern void tilde_initialize __P((void));
+extern char *bash_tilde_expand __P((char *));
-#endif /* _GENERAL_H */
+#endif /* _GENERAL_H_ */
projects / platform / upstream / bash.git / blobdiff