/*
 * Copyright (C) 1996-2000,2007,2010,2013 Michael R. Elkins <me@mutt.org>
 *
 *     This program 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.
 *
 *     This program 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 this program; if not, write to the Free Software
 *     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */


#ifdef HAVE_INTTYPES_H
# include <inttypes.h>
#endif

#include "mbyte.h"

#define MoreArgs(p) (*p->dptr && *p->dptr != ';' && *p->dptr != '#')

#define mutt_make_string(A,B,C,D,E) _mutt_make_string(A,B,C,D,E,0)
void _mutt_make_string (char *, size_t, const char *, CONTEXT *,
                        HEADER *, format_flag);

struct hdr_format_info
{
  CONTEXT *ctx;
  HEADER *hdr;
  const char *pager_progress;
};

void mutt_make_string_info (char *, size_t, int, const char *, struct hdr_format_info *, format_flag);

int mutt_extract_token (BUFFER *, BUFFER *, int);
void mutt_free_opts (void);

#define mutt_system(x) _mutt_system(x,0)
int _mutt_system (const char *, int);

#define mutt_next_thread(x) _mutt_aside_thread(x,1,0)
#define mutt_previous_thread(x) _mutt_aside_thread(x,0,0)
#define mutt_next_subthread(x) _mutt_aside_thread(x,1,1)
#define mutt_previous_subthread(x) _mutt_aside_thread(x,0,1)
int _mutt_aside_thread (HEADER *, short, short);

#define mutt_collapse_thread(x,y) _mutt_traverse_thread (x,y,MUTT_THREAD_COLLAPSE)
#define mutt_uncollapse_thread(x,y) _mutt_traverse_thread (x,y,MUTT_THREAD_UNCOLLAPSE)
#define mutt_thread_contains_unread(x,y) _mutt_traverse_thread (x,y,MUTT_THREAD_UNREAD)
#define mutt_thread_next_unread(x,y) _mutt_traverse_thread(x,y,MUTT_THREAD_NEXT_UNREAD)
int _mutt_traverse_thread (CONTEXT *ctx, HEADER *hdr, int flag);


#define mutt_new_parameter() safe_calloc (1, sizeof (PARAMETER))
#define mutt_new_header() safe_calloc (1, sizeof (HEADER))
#define mutt_new_envelope() safe_calloc (1, sizeof (ENVELOPE))
#ifdef USE_AUTOCRYPT
#define mutt_new_autocrypthdr() safe_calloc (1, sizeof (AUTOCRYPTHDR))
#endif
#define mutt_new_enter_state() safe_calloc (1, sizeof (ENTER_STATE))

typedef const char * format_t (char *, size_t, size_t, int, char, const char *, const char *, const char *, const char *, void *, format_flag);

void mutt_FormatString (char *, size_t, size_t, int, const char *, format_t *, void *, format_flag);
void mutt_parse_content_type (char *, BODY *);
void mutt_generate_boundary (PARAMETER **);
void mutt_delete_parameter (const char *attribute, PARAMETER **p);
void mutt_set_parameter (const char *, const char *, PARAMETER **);


FILE *mutt_open_read (const char *, pid_t *);

void set_quadoption (int, int);
int query_quadoption (int, const char *);
int quadoption (int);

char* mutt_extract_message_id (const char *, const char **, int);

ADDRESS *mutt_get_address (ENVELOPE *, char **);
ADDRESS *mutt_lookup_alias (const char *s);
ADDRESS *mutt_remove_duplicates (ADDRESS *);
ADDRESS *mutt_expand_aliases (ADDRESS *);
ADDRESS *mutt_parse_adrlist (ADDRESS *, const char *);

BODY *mutt_run_send_alternative_filter (BODY *b);
BODY *mutt_make_file_attach (const char *);
BODY *mutt_make_message_attach (CONTEXT *, HEADER *, int);
BODY *mutt_remove_multipart (BODY *);
BODY *mutt_remove_multipart_mixed (BODY *);
BODY *mutt_make_multipart_mixed (BODY *);
BODY *mutt_make_multipart_alternative (BODY *b, BODY *alternative);
BODY *mutt_remove_multipart_alternative (BODY *b);
BODY *mutt_new_body (void);
BODY *mutt_parse_multipart (FILE *, const char *, LOFF_T, int);
BODY *mutt_parse_messageRFC822 (FILE *, BODY *);
BODY *mutt_read_mime_header (FILE *, int);

CONTENT *mutt_get_content_info (const char *fname, BODY *b);

HASH *mutt_make_id_hash (CONTEXT *);
HASH *mutt_make_subj_hash (CONTEXT *);

char *mutt_read_rfc822_line (FILE *, char *, size_t *);
ENVELOPE *mutt_read_rfc822_header (FILE *, HEADER *, short, short);
HEADER *mutt_dup_header (HEADER *);

void mutt_set_mtime (const char *from, const char *to);
time_t mutt_decrease_mtime (const char *, struct stat *);
time_t mutt_local_tz (time_t);
time_t mutt_mktime (struct tm *, int);
time_t mutt_parse_date (const char *, HEADER *);
time_t mutt_add_timeout (time_t, long);
int is_from (const char *, char *, size_t, time_t *);
void mutt_touch_atime (int);
int mutt_timespec_compare (struct timespec *a, struct timespec *b);
void mutt_get_stat_timespec (struct timespec *dest, struct stat *sb, mutt_stat_type type);
int mutt_stat_timespec_compare (struct stat *sba, mutt_stat_type type, struct timespec *b);
int mutt_stat_compare (struct stat *sba, mutt_stat_type sba_type, struct stat *sbb, mutt_stat_type sbb_type);


const char *mutt_attach_fmt (
  char *dest,
  size_t destlen,
  size_t col,
  int cols,
  char op,
  const char *src,
  const char *prefix,
  const char *ifstring,
  const char *elsestring,
  void *data,
  format_flag flags);


char *mutt_charset_hook (const char *);
char *mutt_iconv_hook (const char *);
void mutt_buffer_expand_path (BUFFER *);
void mutt_buffer_expand_path_norel (BUFFER *);
void _mutt_buffer_expand_path (BUFFER *, int, int);
void mutt_buffer_expand_multi_path (BUFFER *src, const char *delimiter);
void mutt_buffer_expand_multi_path_norel (BUFFER *src, const char *delimiter);
char *mutt_find_hook (int, const char *);
char *mutt_gecos_name (char *, size_t, struct passwd *);
char *mutt_gen_msgid (void);
char *mutt_get_body_charset (char *, size_t, BODY *);
const char *mutt_get_name (ADDRESS *);
char *mutt_get_parameter (const char *, PARAMETER *);
LIST *mutt_crypt_hook (ADDRESS *);
void mutt_make_date (BUFFER *);

const char *mutt_make_version (void);

const char *mutt_fqdn(short);

group_t *mutt_pattern_group (const char *);

REGEXP *mutt_compile_regexp (const char *, int);

void mutt_account_hook (const char* url);
void mutt_adv_mktemp (BUFFER *);
void mutt_alias_menu (char *, size_t, ALIAS *);
void mutt_allow_interrupt (int);
void mutt_auto_subscribe (const char *);
void mutt_block_signals (void);
void mutt_block_signals_system (void);
int mutt_body_handler (BODY *, STATE *);
int  mutt_bounce_message (FILE *fp, HEADER *, ADDRESS *);
void mutt_break_thread (HEADER *);
void mutt_browser_cleanup (void);
void mutt_buffer_concat_path (BUFFER *, const char *, const char *);
void mutt_buffer_concatn_path (BUFFER *dst, const char *dir, size_t dirlen,
                               const char *fname, size_t fnamelen);
#define mutt_buffer_quote_filename(a,b) _mutt_buffer_quote_filename (a, b, 1)
void _mutt_buffer_quote_filename (BUFFER *, const char *, int);
void mutt_buffer_sanitize_filename (BUFFER *d, const char *f, short slash);
void mutt_canonical_charset (char *, size_t, const char *);
void mutt_check_stats(void);
int mutt_count_body_parts (CONTEXT *, HEADER *);
void mutt_check_rescore (CONTEXT *);
void mutt_clear_error (void);
void mutt_clear_pager_position (void);
void mutt_commands_cleanup (void);
void mutt_create_alias (ENVELOPE *, ADDRESS *);
void mutt_decode_attachment (BODY *, STATE *);
void mutt_decode_base64 (STATE *s, LOFF_T len, int istext, iconv_t cd);
void mutt_default_save (char *, size_t, HEADER *);
void mutt_display_address (ENVELOPE *);
void mutt_display_sanitize (char *);
int mutt_edit_content_type (HEADER *, BODY *, FILE *);
void mutt_edit_file (const char *, const char *);
int mutt_edit_headers (const char *, SEND_CONTEXT *, int);
char **mutt_envlist (void);
void mutt_envlist_set (const char *name, const char *value, int overwrite);
int mutt_filter_unprintable (char **);
int mutt_label_message (HEADER *);
void mutt_make_label_hash (CONTEXT *);
void mutt_label_hash_add (CONTEXT *ctx, HEADER *hdr);
void mutt_label_hash_remove (CONTEXT *ctx, HEADER *hdr);
int mutt_label_complete (char *, size_t, int);
void mutt_curses_error (const char *, ...);
void mutt_curses_message (const char *, ...);
void mutt_encode_path (BUFFER *, const char *);
void mutt_enter_command (void);
void mutt_error_history_display (void);
void mutt_error_history_init (void);
void mutt_expand_aliases_env (ENVELOPE *);
void mutt_expand_file_fmt (BUFFER *, const char *, const char *);
void mutt_expand_fmt (BUFFER *, const char *, const char *);
void mutt_folder_hook (const char *);
void mutt_format_string (char *, size_t, int, int, int, char, const char *, size_t, int);
void mutt_format_s (char *, size_t, const char *, const char *);
void mutt_format_s_tree (char *, size_t, const char *, const char *);
void mutt_free_alias (ALIAS **);
void mutt_free_all_ansi_colors (void);
#ifdef USE_AUTOCRYPT
void mutt_free_autocrypthdr (AUTOCRYPTHDR **p);
#endif
void mutt_free_body (BODY **);
void mutt_free_color (int fg, int bg);
void mutt_free_enter_state (ENTER_STATE **);
void mutt_free_envelope (ENVELOPE **);
void mutt_free_header (HEADER **);
void mutt_free_parameter (PARAMETER **);
void mutt_free_regexp (REGEXP **);
void mutt_generate_header (char *, size_t, HEADER *, int);
const char *mutt_getcwd (BUFFER *);
void mutt_help (int);
const char *mutt_idxfmt_hook (const char *, CONTEXT *, HEADER *);
void mutt_draw_tree (CONTEXT *);
void mutt_check_lookup_list (BODY *, char *, size_t);
void mutt_list_menu (CONTEXT *ctx, HEADER *cur);
void mutt_make_help (char *, size_t, const char *, int, int);
void mutt_merge_envelopes(ENVELOPE* base, ENVELOPE** extra);
void mutt_message_to_7bit (BODY *, FILE *);
#define mutt_buffer_mktemp(a) mutt_buffer_mktemp_pfx_sfx (a, "mutt", NULL)
#define mutt_buffer_mktemp_pfx_sfx(a,b,c)  _mutt_buffer_mktemp (a, b, c, __FILE__, __LINE__)
void _mutt_buffer_mktemp (BUFFER *, const char *, const char *, const char *, int);
#define mutt_mktemp(a,b) mutt_mktemp_pfx_sfx (a, b, "mutt", NULL)
#define mutt_mktemp_pfx_sfx(a,b,c,d)  _mutt_mktemp (a, b, c, d, __FILE__, __LINE__)
void _mutt_mktemp (char *, size_t, const char *, const char *, const char *, int);
void mutt_normalize_time (struct tm *);
void mutt_paddstr (int, const char *);
void mutt_parse_mime_message (CONTEXT *ctx, HEADER *);
void mutt_parse_part (FILE *, BODY *);
void mutt_perror (const char *);
void mutt_prepare_envelope (ENVELOPE *, int);
void mutt_unprepare_envelope (ENVELOPE *);
void mutt_buffer_pretty_mailbox (BUFFER *);
void mutt_buffer_pretty_multi_mailbox (BUFFER *s, const char *delimiter);
void mutt_pretty_mailbox (char *, size_t);
void mutt_pretty_size (char *, size_t, LOFF_T);
void mutt_pipe_message (HEADER *);
void mutt_print_message (HEADER *);
void mutt_print_patchlist (void);
void mutt_query_exit (void);
void mutt_query_menu (char *, size_t);
void mutt_safe_path (BUFFER *dest, ADDRESS *a);
int mutt_rx_sanitize_string (BUFFER *dest, const char *src);
void mutt_save_path (char *s, size_t l, ADDRESS *a);
void mutt_buffer_save_path (BUFFER *dest, ADDRESS *a);
void mutt_score_message (CONTEXT *, HEADER *, int);
void mutt_select_fcc (BUFFER *, HEADER *);
#define mutt_select_file(A,B,C) _mutt_select_file(A,B,C,NULL,NULL)
void _mutt_select_file (char *, size_t, int, char ***, int *);
#define mutt_buffer_select_file(A,B) _mutt_buffer_select_file(A,B,NULL,NULL)
void _mutt_buffer_select_file (BUFFER *, int, char ***, int *);
void mutt_message_hook (CONTEXT *, HEADER *, int);
void _mutt_set_flag (CONTEXT *, HEADER *, int, int, int);
#define mutt_set_flag(a,b,c,d) _mutt_set_flag(a,b,c,d,1)
void mutt_shell_escape (void);
void mutt_show_error (void);
void mutt_signal_init (void);
void mutt_signal_cleanup (void);
void mutt_stamp_attachment (BODY *a);
void mutt_tabs_to_spaces (char *);
void mutt_tag_set_flag (int, int);
short mutt_ts_capability (void);
void mutt_unblock_signals (void);
void mutt_unblock_signals_system (int);
void mutt_update_encoding (BODY *a);
void mutt_version (void);
void mutt_view_attachments (HEADER *);
void mutt_write_address_list (ADDRESS *adr, FILE *fp, int linelen, int display);
void mutt_set_virtual (CONTEXT *);

int mutt_add_to_rx_list (RX_LIST **list, const char *s, int flags, BUFFER *err);
int mutt_addr_is_user (ADDRESS *);
int mutt_addwch (wchar_t);
int mutt_alias_complete (char *, size_t);
void mutt_alias_add_reverse (ALIAS *t);
void mutt_alias_delete_reverse (ALIAS *t);
void mutt_attrset_cursor (int source_pair, int cursor_pair);
int mutt_merge_colors (int source, int overlay);
int mutt_alloc_color (int fg, int bg);
int mutt_alloc_ansi_color (int fg, int bg);
int mutt_alloc_overlay_color (int fg, int bg);
int mutt_ask_pattern (char *, size_t);
int mutt_any_key_to_continue (const char *);
char *mutt_apply_replace (char *, size_t, char *, REPLACE_LIST *);
int mutt_builtin_editor (SEND_CONTEXT *);
int mutt_can_decode (BODY *);
int mutt_change_flag (HEADER *, int);
int mutt_check_encoding (const char *);
int mutt_check_key (const char *);
int mutt_check_menu (const char *);
int mutt_check_mime_type (const char *);
int mutt_check_month (const char *);
int mutt_check_overwrite (const char *, const char *, BUFFER *, int *, char **);
int mutt_check_traditional_pgp (HEADER *, int *);
int mutt_command_complete (char *, size_t, int, int);
int mutt_var_value_complete (char *, size_t, int);
int mutt_complete (char *, size_t);
int mutt_compose_attachment (BODY *a);
int mutt_copy_body (FILE *, BODY **, BODY *);
int mutt_decode_save_attachment (FILE *, BODY *, const char *, int, int);
int mutt_display_message (HEADER *h);
int mutt_dump_variables (void);
int mutt_edit_attachment(BODY *);
int mutt_edit_message (CONTEXT *, HEADER *);
int mutt_chscmp (const char *s, const char *chs);
#define mutt_is_utf8(a) mutt_chscmp (a, "utf-8")
#define mutt_is_us_ascii(a) mutt_chscmp (a, "us-ascii")
int mutt_parent_message (CONTEXT *, HEADER *, int);
int mutt_prepare_template(FILE*, CONTEXT *, HEADER *, HEADER *, short);
int mutt_enter_filename (const char *prompt, BUFFER *fname);
int mutt_enter_filenames (const char *prompt, char ***files, int *numfiles);
int mutt_enter_mailbox (const char *, BUFFER *, int);
int  mutt_enter_string (char *buf, size_t buflen, int col, int flags);
int _mutt_enter_string (char *, size_t, int, int, int, char ***, int *, ENTER_STATE *);
int mutt_get_field (const char *, char *, size_t, int);
int mutt_buffer_get_field (const char *, BUFFER *, int);
int mutt_get_hook_type (const char *);
int mutt_get_field_unbuffered (char *, char *, size_t, int);
#define mutt_get_password(A,B,C) mutt_get_field_unbuffered(A,B,C,MUTT_PASS)
int mutt_get_postponed (CONTEXT *, SEND_CONTEXT *);
int mutt_get_tmp_attachment (BODY *);
int mutt_index_menu (void);
int mutt_invoke_sendmail (ADDRESS *, ADDRESS *, ADDRESS *, ADDRESS *, const char *, int);
int mutt_is_mail_list (ADDRESS *);
int mutt_is_message_type(int, const char *);
int mutt_is_list_cc (int, ADDRESS *, ADDRESS *);
int mutt_is_list_recipient (int, ADDRESS *, ADDRESS *);
int mutt_is_quote_line (char *, regmatch_t *);
int mutt_is_subscribed_list (ADDRESS *);
int mutt_is_text_part (BODY *);
int mutt_is_valid_mailbox (const char *);
int mutt_link_threads (HEADER *, HEADER *, CONTEXT *);
int mutt_lookup_mime_type (BODY *, const char *);
int mutt_match_rx_list (const char *, RX_LIST *);
int mutt_match_spam_list (const char *, REPLACE_LIST *, char *, int);
int mutt_messages_in_thread (CONTEXT *, HEADER *, int);
int mutt_multi_choice (char *prompt, char *letters);
int mutt_needs_mailcap (BODY *);
int mutt_num_postponed (int);
int mutt_parse_bind (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_exec (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_color (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_uncolor (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_hook (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_idxfmt_hook (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_list_header (char **dst, char *p);
int mutt_parse_macro (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_mailboxes (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_unmailboxes (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_mono (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_unmono (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_push (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_rc_buffer (BUFFER *, BUFFER *, BUFFER *);
int mutt_parse_rc_line (const char *, BUFFER *);
LIST *mutt_parse_references (char *s, int allow_nb);
int mutt_parse_rfc822_line (ENVELOPE *e, HEADER *hdr, char *line, char *p,
                            short user_hdrs, short weed, short do_2047, LIST **lastp);
int mutt_parse_score (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_unscore (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_parse_unhook (BUFFER *, BUFFER *, union pointer_long_t, BUFFER *);
int mutt_pattern_func (int, char *);
int mutt_pipe_attachment (FILE *, BODY *, const char *, const char *);
int mutt_print_attachment (FILE *, BODY *);
int mutt_query_complete (char *, size_t);
int mutt_query_variables (LIST *queries);
int mutt_save_attachment (FILE *, BODY *, const char *, int, HEADER *);
int _mutt_save_message (HEADER *, CONTEXT *, int, int, int);
int mutt_save_message (HEADER *, int, int, int);
int mutt_search_command (int, int);
#ifdef USE_SMTP
int mutt_smtp_send (const ADDRESS *, const ADDRESS *, const ADDRESS *,
                    const ADDRESS *, const char *, int);
#endif
size_t mutt_wstr_trunc (const char *, size_t, size_t, size_t *);
int mutt_charlen (const char *s, int *);
int mutt_strwidth (const char *);
int mutt_compose_menu (SEND_CONTEXT *);
int mutt_thread_set_flag (HEADER *, int, int, int);
int mutt_user_is_recipient (HEADER *);
void mutt_update_num_postponed (void);
int mutt_wait_filter (pid_t);
int mutt_wait_interactive_filter (pid_t);
int mutt_which_case (const char *);
int mutt_write_fcc (const char *path, SEND_CONTEXT *sctx, const char *msgid, int, const char *);
int mutt_write_mime_body (BODY *, FILE *);
int mutt_write_mime_header (BODY *, FILE *);
int mutt_write_one_header (FILE *fp, const char *tag, const char *value, const char *pfx, int wraplen, int flags);
int mutt_write_rfc822_header (FILE *, ENVELOPE *, BODY *, char *, mutt_write_header_mode, int, int);
void mutt_write_references (LIST *, FILE *, int);
int mutt_yesorno (const char *, int);
void mutt_set_header_color(CONTEXT *, HEADER *);
void mutt_sleep (short);
int mutt_save_confirm (const char  *, struct stat *);

int mh_valid_message (const char *);

pid_t mutt_create_filter (const char *, FILE **, FILE **, FILE **);
pid_t mutt_create_filter_fd (const char *, FILE **, FILE **, FILE **, int, int, int);

ADDRESS *alias_reverse_lookup (ADDRESS *);

/* lib.c files transplanted to muttlib.c */
int mutt_rmtree (const char *);
FILE *safe_fopen (const char *, const char *);
int safe_open (const char *, int);
int safe_symlink (const char *, const char *);

/* base64.c */
void mutt_to_base64 (unsigned char*, const unsigned char*, size_t, size_t);
int mutt_from_base64 (char*, const char*, size_t);
void mutt_buffer_to_base64 (BUFFER *, const unsigned char *, size_t);
int mutt_buffer_from_base64 (BUFFER *, const char *);

/* utf8.c */
int mutt_wctoutf8 (char *s, unsigned int c, size_t buflen);

#ifdef LOCALES_HACK
#define IsPrint(c) (isprint((unsigned char)(c)) ||      \
                    ((unsigned char)(c) >= 0xa0))
#define IsWPrint(wc) (iswprint(wc) || wc >= 0xa0)
#else
#define IsPrint(c) (isprint((unsigned char)(c)) ||      \
                    (option (OPTLOCALES) ? 0 :          \
                     ((unsigned char)(c) >= 0xa0)))
#define IsWPrint(wc) (iswprint(wc) ||                           \
                      (option (OPTLOCALES) ? 0 : (wc >= 0xa0)))
#endif

#define new_pattern() safe_calloc(1, sizeof (pattern_t))

int mutt_pattern_exec (struct pattern_t *pat, pattern_exec_flag flags, CONTEXT *ctx, HEADER *h, pattern_cache_t *);
pattern_t *mutt_pattern_comp (/* const */ char *s, int flags, BUFFER *err);
void mutt_check_simple (BUFFER *s, const char *simple);
void mutt_pattern_free (pattern_t **pat);

/* ----------------------------------------------------------------------------
 * Prototypes for broken systems
 */

#ifdef HAVE_LONG_LONG_INT
#ifdef LONGLONG
#error LONGLONG is already defined
#endif
#define LONGLONG long long
#else
#define LONGLONG long
#endif

#ifdef HAVE_SRAND48
#define LRAND lrand48
#define SRAND srand48
#define DRAND drand48
#else
#define LRAND rand
#define SRAND srand
#define DRAND (double)rand
#endif /* HAVE_SRAND48 */

/* HP-UX, ConvexOS and UNIXware don't have this macro */
#ifndef S_ISLNK
#define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK ? 1 : 0)
#endif

int getdnsdomainname (BUFFER *);

/* According to SCO support, this is how to detect SCO */
#if defined (_M_UNIX) || defined (MUTT_OS)
#define SCO
#endif

/* SCO Unix uses chsize() instead of ftruncate() */
#ifndef HAVE_FTRUNCATE
#define ftruncate chsize
#endif

#ifndef HAVE_STRERROR
#define strerror(x) ((x) > 0 && (x) < sys_nerr) ? sys_errlist[(x)] : 0
#endif /* !HAVE_STRERROR */

#ifndef HAVE_MEMMOVE
#define memmove(d,s,n) bcopy((s),(d),(n))
#endif

/* AIX doesn't define these in any headers (sigh) */
int strcasecmp (const char *, const char *);
int strncasecmp (const char *, const char *, size_t);

#ifdef _AIX
int setegid (gid_t);
#endif /* _AIX */

/* unsorted */
void ci_bounce_message (HEADER *);

/* prototypes for compatibility functions */

#ifndef HAVE_SETENV
int setenv (const char *, const char *, int);
#endif

#ifndef HAVE_STRCASECMP
int strcasecmp (char *, char *);
int strncasecmp (char *, char *, size_t);
#endif

#ifndef HAVE_STRDUP
char *strdup (const char *);
#endif

#ifndef HAVE_STRSEP
char *strsep (char **, const char *);
#endif

#ifndef HAVE_STRTOK_R
char *strtok_r (char *, const char *, char **);
#endif

#ifndef HAVE_WCSCASECMP
int wcscasecmp (const wchar_t *a, const wchar_t *b);
#endif

#ifndef HAVE_STRCASESTR
char *strcasestr (const char *, const char *);
#endif

#ifndef HAVE_MKDTEMP
char *mkdtemp (char *tmpl);
#endif