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/* Declarations for utils.c.
   Copyright (C) 2005 Free Software Foundation, Inc.

This file is part of GNU Wget.

GNU Wget 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 2 of the License, or
(at your option) any later version.

GNU Wget is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Wget; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

In addition, as a special exception, the Free Software Foundation
gives permission to link the code of its release of Wget with the
OpenSSL project's "OpenSSL" library (or with modified versions of it
that use the same license as the "OpenSSL" library), and distribute
the linked executables.  You must obey the GNU General Public License
in all respects for all of the code used other than "OpenSSL".  If you
modify this file, you may extend this exception to your version of the
file, but you are not obligated to do so.  If you do not wish to do
so, delete this exception statement from your version.  */

#ifndef UTILS_H
#define UTILS_H

enum accd {
   ALLABS = 1

struct hash_table;

struct file_memory {
  char *content;
  long length;
  int mmap_p;

#define HYPHENP(x) (*(x) == '-' && !*((x) + 1))

char *time_str PARAMS ((time_t *));
char *datetime_str PARAMS ((time_t *));

void print_malloc_debug_stats ();

char *xstrdup_lower PARAMS ((const char *));

char *strdupdelim PARAMS ((const char *, const char *));
char **sepstring PARAMS ((const char *));
int frontcmp PARAMS ((const char *, const char *));
void fork_to_background PARAMS ((void));

char *aprintf PARAMS ((const char *, ...))
     GCC_FORMAT_ATTR (1, 2);
char *concat_strings PARAMS ((const char *, ...));
#else  /* not WGET_USE_STDARG */
char *aprintf ();
char *concat_strings ();
#endif /* not WGET_USE_STDARG */

void touch PARAMS ((const char *, time_t));
int remove_link PARAMS ((const char *));
int file_exists_p PARAMS ((const char *));
int file_non_directory_p PARAMS ((const char *));
wgint file_size PARAMS ((const char *));
int make_directory PARAMS ((const char *));
char *unique_name PARAMS ((const char *, int));
FILE *unique_create PARAMS ((const char *, int, char **));
FILE *fopen_excl PARAMS ((const char *, int));
char *file_merge PARAMS ((const char *, const char *));

int acceptable PARAMS ((const char *));
int accdir PARAMS ((const char *s, enum accd));
char *suffix PARAMS ((const char *s));
int match_tail PARAMS ((const char *, const char *, int));
int has_wildcards_p PARAMS ((const char *));

int has_html_suffix_p PARAMS ((const char *));

char *read_whole_line PARAMS ((FILE *));
struct file_memory *read_file PARAMS ((const char *));
void read_file_free PARAMS ((struct file_memory *));

void free_vec PARAMS ((char **));
char **merge_vecs PARAMS ((char **, char **));
char **vec_append PARAMS ((char **, const char *));

void string_set_add PARAMS ((struct hash_table *, const char *));
int string_set_contains PARAMS ((struct hash_table *, const char *));
void string_set_to_array PARAMS ((struct hash_table *, char **));
void string_set_free PARAMS ((struct hash_table *));
void free_keys_and_values PARAMS ((struct hash_table *));

char *with_thousand_seps PARAMS ((wgint));
#ifndef with_thousand_seps_sum
char *with_thousand_seps_sum PARAMS ((SUM_SIZE_INT));
char *human_readable PARAMS ((wgint));
int numdigit PARAMS ((wgint));
char *number_to_string PARAMS ((char *, wgint));
char *number_to_static_string PARAMS ((wgint));

int determine_screen_width PARAMS ((void));
int random_number PARAMS ((int));
double random_float PARAMS ((void));

int run_with_timeout PARAMS ((double, void (*) (void *), void *));
void xsleep PARAMS ((double));

/* How many bytes it will take to store LEN bytes in base64.  */
#define BASE64_LENGTH(len) (4 * (((len) + 2) / 3))

int base64_encode PARAMS ((const char *, int, char *));
int base64_decode PARAMS ((const char *, char *));

void stable_sort PARAMS ((void *, size_t, size_t,
                          int (*) (const void *, const void *)));

#endif /* UTILS_H */

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