mirror of https://github.com/moparisthebest/wget
210 lines
6.9 KiB
C
210 lines
6.9 KiB
C
/* Miscellaneous declarations.
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Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
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This file is part of Wget.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* This file contains some declarations that don't fit anywhere else.
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It also contains some useful includes, like the obnoxious TIME_H
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inclusion. */
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#ifndef WGET_H
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#define WGET_H
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#ifndef DEBUG
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# define NDEBUG /* To kill off assertions */
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#endif /* not DEBUG */
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#ifndef PARAMS
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# if PROTOTYPES
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# define PARAMS(args) args
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# else
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# define PARAMS(args) ()
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# endif
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#endif
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/* `gettext (FOO)' is long to write, so we use `_(FOO)'. If NLS is
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unavailable, _(STRING) simply returns STRING. */
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#ifdef HAVE_NLS
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# define _(string) gettext (string)
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# ifdef HAVE_LIBINTL_H
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# include <libintl.h>
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# endif /* HAVE_LIBINTL_H */
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#else /* not HAVE_NLS */
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# define _(string) string
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#endif /* not HAVE_NLS */
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/* I18N NOTE: You will notice that none of the DEBUG messages are
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marked as translatable. This is intentional, for a few reasons:
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1) The debug messages are not meant for the users to look at, but
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for the developers; as such, they should be considered more like
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source comments than real program output.
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2) The messages are numerous, and yet they are random and frivolous
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("double yuck!" and such). There would be a lot of work with no
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gain.
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3) Finally, the debug messages are meant to be a clue for me to
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debug problems with Wget. If I get them in a language I don't
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understand, debugging will become a new challenge of its own! :-) */
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/* Include these, so random files need not include them. */
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#include "sysdep.h"
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#include "options.h"
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#define DO_NOTHING do {} while (0)
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/* Print X if debugging is enabled; a no-op otherwise. */
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#ifdef DEBUG
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# define DEBUGP(x) do { debug_logprintf x; } while (0)
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#else /* not DEBUG */
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# define DEBUGP(x) DO_NOTHING
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#endif /* not DEBUG */
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/* Make gcc check for the format of logmsg() and debug_logmsg(). */
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#ifdef __GNUC__
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# define GCC_FORMAT_ATTR(a, b) __attribute__ ((format (printf, a, b)))
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#else /* not __GNUC__ */
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# define GCC_FORMAT_ATTR(a, b)
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#endif /* not __GNUC__ */
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/* These are from log.c, but they are used everywhere, so we declare
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them here. */
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enum log_options { LOG_VERBOSE, LOG_NOTQUIET, LOG_NONVERBOSE, LOG_ALWAYS };
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void logprintf PARAMS ((enum log_options, const char *, ...))
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GCC_FORMAT_ATTR (2, 3);
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void debug_logprintf PARAMS ((const char *, ...)) GCC_FORMAT_ATTR (1, 2);
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void logputs PARAMS ((enum log_options, const char *));
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/* Defined in `utils.c', but used literally everywhere. */
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void *xmalloc PARAMS ((size_t));
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void *xrealloc PARAMS ((void *, size_t));
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char *xstrdup PARAMS ((const char *));
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/* #### Find a better place for this. */
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/* The log file to which Wget writes to after HUP. */
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#define DEFAULT_LOGFILE "wget-log"
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#define MD5_HASHLEN 16
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/* Useful macros used across the code: */
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/* Is the string a hpyhen-only? */
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#define HYPHENP(x) (*(x) == '-' && !*((x) + 1))
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/* The smaller value of the two. */
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#define MINVAL(x, y) ((x) < (y) ? (x) : (y))
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/* ASCII char -> HEX digit */
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#define ASC2HEXD(x) (((x) >= '0' && (x) <= '9') ? \
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((x) - '0') : (toupper(x) - 'A' + 10))
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/* HEX digit -> ASCII char */
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#define HEXD2ASC(x) (((x) < 10) ? ((x) + '0') : ((x) - 10 + 'A'))
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#define ARRAY_SIZE(array) (sizeof (array) / sizeof (*(array)))
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/* Note that this much more elegant definition cannot be used:
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#define STRDUP_ALLOCA(str) (strcpy ((char *)alloca (strlen (str) + 1), str))
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This is because some compilers don't handle alloca() as argument to
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function correctly. Gcc under Intel has been reported to offend in
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this case. */
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#define STRDUP_ALLOCA(ptr, str) do { \
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(ptr) = (char *)alloca (strlen (str) + 1); \
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strcpy (ptr, str); \
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} while (0)
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#define ALLOCA_ARRAY(type, len) ((type *) alloca ((len) * sizeof (type)))
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#define XREALLOC_ARRAY(ptr, type, len) \
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((void) (ptr = (type *) xrealloc (ptr, (len) * sizeof (type))))
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/* Generally useful if you want to avoid arbitrary size limits but
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don't need a full dynamic array. Assumes that BASEVAR points to a
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malloced array of TYPE objects (or possibly a NULL pointer, if
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SIZEVAR is 0), with the total size stored in SIZEVAR. This macro
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will realloc BASEVAR as necessary so that it can hold at least
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NEEDED_SIZE objects. The reallocing is done by doubling, which
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ensures constant amortized time per element. */
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#define DO_REALLOC(basevar, sizevar, needed_size, type) do \
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{ \
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/* Avoid side-effectualness. */ \
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long do_realloc_needed_size = (needed_size); \
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long do_realloc_newsize = 0; \
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while ((sizevar) < (do_realloc_needed_size)) { \
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do_realloc_newsize = 2*(sizevar); \
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if (do_realloc_newsize < 32) \
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do_realloc_newsize = 32; \
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(sizevar) = do_realloc_newsize; \
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} \
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if (do_realloc_newsize) \
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XREALLOC_ARRAY (basevar, type, do_realloc_newsize); \
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} while (0)
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/* Free FOO if it is non-NULL. */
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#define FREE_MAYBE(foo) do { if (foo) free (foo); } while (0)
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/* #### Hack: OPTIONS_DEFINED_HERE is defined in main.c. */
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#ifndef OPTIONS_DEFINED_HERE
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extern const char *exec_name;
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#endif
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/* Document-type flags */
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enum
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{
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TEXTHTML = 0x0001, /* document is of type text/html */
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RETROKF = 0x0002, /* retrieval was OK */
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HEAD_ONLY = 0x0004, /* only send the HEAD request */
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SEND_NOCACHE = 0x0008, /* send Pragma: no-cache directive */
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ACCEPTRANGES = 0x0010 /* Accept-ranges header was found */
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};
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/* Universal error type -- used almost everywhere.
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This is, of course, utter crock. */
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typedef enum
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{
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NOCONERROR, HOSTERR, CONSOCKERR, CONERROR,
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CONREFUSED, NEWLOCATION, NOTENOUGHMEM, CONPORTERR,
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BINDERR, BINDOK, LISTENERR, ACCEPTERR, ACCEPTOK,
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CONCLOSED, FTPOK, FTPLOGINC, FTPLOGREFUSED, FTPPORTERR,
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FTPNSFOD, FTPRETROK, FTPUNKNOWNTYPE, FTPRERR,
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FTPREXC, FTPSRVERR, FTPRETRINT, FTPRESTFAIL,
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URLOK, URLHTTP, URLFTP, URLFILE, URLUNKNOWN, URLBADPORT,
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URLBADHOST, FOPENERR, FWRITEERR, HOK, HLEXC, HEOF,
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HERR, RETROK, RECLEVELEXC, FTPACCDENIED, WRONGCODE,
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FTPINVPASV, FTPNOPASV,
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RETRFINISHED, READERR, TRYLIMEXC, URLBADPATTERN,
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FILEBADFILE, RANGEERR, RETRBADPATTERN, RETNOTSUP,
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ROBOTSOK, NOROBOTS, PROXERR, AUTHFAILED, QUOTEXC, WRITEFAILED
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} uerr_t;
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typedef unsigned char boolean;
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#ifndef FALSE
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#define FALSE 0
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#endif
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#ifndef TRUE
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#define TRUE 1
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#endif
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#endif /* WGET_H */
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