src/utils.h

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2001 Hiroyuki Yamamoto
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifndef __UTILS_H__
  21 #define __UTILS_H__
  22
  23 #ifdef HAVE_CONFIG_H
  24 #  include "config.h"
  25 #endif
  26
  27 #include <glib.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <stdlib.h>
  31 #include <unistd.h>
  32 #include <sys/types.h>
  33 #include <time.h>
  34 #if HAVE_ALLOCA_H
  35 #  include <alloca.h>
  36 #endif
  37 #if HAVE_WCHAR_H
  38 #  include <wchar.h>
  39 #endif
  40
  41 /* The AC_CHECK_SIZEOF() in configure fails for some machines.
  42  * we provide some fallback values here */
  43 #if !SIZEOF_UNSIGNED_SHORT
  44   #undef SIZEOF_UNSIGNED_SHORT
  45   #define SIZEOF_UNSIGNED_SHORT 2
  46 #endif
  47 #if !SIZEOF_UNSIGNED_INT
  48   #undef SIZEOF_UNSIGNED_INT
  49   #define SIZEOF_UNSIGNED_INT 4
  50 #endif
  51 #if !SIZEOF_UNSIGNED_LONG
  52   #undef SIZEOF_UNSIGNED_LONG
  53   #define SIZEOF_UNSIGNED_LONG 4
  54 #endif
  55
  56 #ifndef HAVE_U32_TYPEDEF
  57   #undef u32        /* maybe there is a macro with this name */
  58   typedef guint32 u32;
  59   #define HAVE_U32_TYPEDEF
  60 #endif
  61
  62 #ifndef BIG_ENDIAN_HOST
  63   #if (G_BYTE_ORDER == G_BIG_ENDIAN)
  64     #define BIG_ENDIAN_HOST 1
  65   #endif
  66 #endif
  67
  68 #define CHDIR_RETURN_IF_FAIL(dir) \
  69 { \
  70         if (change_dir(dir) < 0) return; \
  71 }
  72
  73 #define CHDIR_RETURN_VAL_IF_FAIL(dir, val) \
  74 { \
  75         if (change_dir(dir) < 0) return val; \
  76 }
  77
  78 #define Xalloca(ptr, size, iffail) \
  79 { \
  80         if ((ptr = alloca(size)) == NULL) { \
  81                 g_warning("can't allocate memory\n"); \
  82                 iffail; \
  83         } \
  84 }
  85
  86 #define Xstrdup_a(ptr, str, iffail) \
  87 { \
  88         gchar *__tmp; \
  89  \
  90         if ((__tmp = alloca(strlen(str) + 1)) == NULL) { \
  91                 g_warning("can't allocate memory\n"); \
  92                 iffail; \
  93         } else \
  94                 strcpy(__tmp, str); \
  95  \
  96         ptr = __tmp; \
  97 }
  98
  99 #define Xstrndup_a(ptr, str, len, iffail) \
 100 { \
 101         gchar *__tmp; \
 102  \
 103         if ((__tmp = alloca(len + 1)) == NULL) { \
 104                 g_warning("can't allocate memory\n"); \
 105                 iffail; \
 106         } else { \
 107                 strncpy(__tmp, str, len); \
 108                 __tmp[len] = '\0'; \
 109         } \
 110  \
 111         ptr = __tmp; \
 112 }
 113
 114 #define FILE_OP_ERROR(file, func) \
 115 { \
 116         fprintf(stderr, "%s: ", file); \
 117         perror(func); \
 118 }
 119
 120 /* for macro expansion */
 121 #define Str(x)  #x
 122 #define Xstr(x) Str(x)
 123
 124 void list_free_strings          (GList          *list);
 125 void slist_free_strings         (GSList         *list);
 126
 127 void hash_free_strings          (GHashTable     *table);
 128
 129 void ptr_array_free_strings     (GPtrArray      *array);
 130
 131 /* number-string conversion */
 132 gint to_number                  (const gchar *nstr);
 133 gchar *itos_buf                 (gchar       *nstr,
 134                                  gint         n);
 135 gchar *itos                     (gint         n);
 136 gchar *to_human_readable        (off_t        size);
 137
 138 /* alternative string functions */
 139 gint strcmp2            (const gchar    *s1,
 140                          const gchar    *s2);
 141 gint path_cmp           (const gchar    *s1,
 142                          const gchar    *s2);
 143 gchar *strretchomp      (gchar          *str);
 144 gchar *strtailchomp     (gchar          *str,
 145                          gchar           tail_char);
 146 gchar *strcasestr       (const gchar    *haystack,
 147                          const gchar    *needle);
 148 gchar *strncpy2         (gchar          *dest,
 149                          const gchar    *src,
 150                          size_t          n);
 151
 152 /* wide-character functions */
 153 #if !HAVE_ISWALNUM
 154 int iswalnum            (wint_t wc);
 155 #endif
 156 #if !HAVE_ISWSPACE
 157 int iswspace            (wint_t wc);
 158 #endif
 159 #if !HAVE_TOWLOWER
 160 wint_t towlower         (wint_t wc);
 161 #endif
 162
 163 #if !HAVE_WCSLEN
 164 size_t wcslen           (const wchar_t *s);
 165 #endif
 166 #if !HAVE_WCSCPY
 167 wchar_t *wcscpy         (wchar_t       *dest,
 168                          const wchar_t *src);
 169 #endif
 170 #if !HAVE_WCSNCPY
 171 wchar_t *wcsncpy        (wchar_t       *dest,
 172                          const wchar_t *src,
 173                          size_t         n);
 174 #endif
 175
 176 wchar_t *wcsdup                 (const wchar_t *s);
 177 wchar_t *wcsndup                (const wchar_t *s,
 178                                  size_t         n);
 179 wchar_t *strdup_mbstowcs        (const gchar   *s);
 180 gchar *strdup_wcstombs          (const wchar_t *s);
 181 gint wcsncasecmp                (const wchar_t *s1,
 182                                  const wchar_t *s2,
 183                                  size_t         n);
 184 wchar_t *wcscasestr             (const wchar_t *haystack,
 185                                  const wchar_t *needle);
 186
 187 gboolean is_next_nonascii       (const wchar_t *s);
 188 gboolean is_next_mbs            (const wchar_t *s);
 189 wchar_t *find_wspace            (const wchar_t *s);
 190
 191 /* functions for string parsing */
 192 gint subject_compare                    (const gchar    *s1,
 193                                          const gchar    *s2);
 194 void trim_subject                       (gchar          *str);
 195 void eliminate_parenthesis              (gchar          *str,
 196                                          gchar           op,
 197                                          gchar           cl);
 198 void extract_parenthesis                (gchar          *str,
 199                                          gchar           op,
 200                                          gchar           cl);
 201
 202 void extract_one_parenthesis_with_skip_quote    (gchar          *str,
 203                                                  gchar           quote_chr,
 204                                                  gchar           op,
 205                                                  gchar           cl);
 206 void extract_parenthesis_with_skip_quote        (gchar          *str,
 207                                                  gchar           quote_chr,
 208                                                  gchar           op,
 209                                                  gchar           cl);
 210
 211 void eliminate_quote                    (gchar          *str,
 212                                          gchar           quote_chr);
 213 void extract_quote                      (gchar          *str,
 214                                          gchar           quote_chr);
 215 void eliminate_address_comment          (gchar          *str);
 216 gchar *strchr_with_skip_quote           (const gchar    *str,
 217                                          gint            quote_chr,
 218                                          gint            c);
 219 gchar *strrchr_with_skip_quote          (const gchar    *str,
 220                                          gint            quote_chr,
 221                                          gint            c);
 222 void extract_address                    (gchar          *str);
 223 GSList *address_list_append             (GSList         *addr_list,
 224                                          const gchar    *str);
 225 GSList *references_list_append          (GSList         *msgid_list,
 226                                          const gchar    *str);
 227 GSList *newsgroup_list_append           (GSList         *group_list,
 228                                          const gchar    *str);
 229 void remove_return                      (gchar          *str);
 230 void remove_space                       (gchar          *str);
 231 void unfold_line                        (gchar          *str);
 232 void subst_char                         (gchar          *str,
 233                                          gchar           orig,
 234                                          gchar           subst);
 235 gboolean is_header_line                 (const gchar    *str);
 236 gboolean is_ascii_str                   (const guchar   *str);
 237 gint get_quote_level                    (const gchar    *str);
 238 GList *uri_list_extract_filenames       (const gchar    *uri_list);
 239 gchar *strstr_with_skip_quote           (const gchar    *haystack,
 240                                          const gchar    *needle);
 241 gchar **strsplit_with_quote             (const gchar    *str,
 242                                          const gchar    *delim,
 243                                          gint            max_tokens);
 244
 245 /* return static strings */
 246 gchar *get_home_dir             (void);
 247 gchar *get_rc_dir               (void);
 248 gchar *get_news_cache_dir       (void);
 249 gchar *get_imap_cache_dir       (void);
 250 gchar *get_mbox_cache_dir       (void);
 251 gchar *get_mime_tmp_dir         (void);
 252 gchar *get_tmp_file             (void);
 253 gchar *get_domain_name          (void);
 254
 255 /* file / directory handling */
 256 off_t get_file_size             (const gchar    *file);
 257 off_t get_left_file_size        (FILE           *fp);
 258 gboolean file_exist             (const gchar    *file,
 259                                  gboolean        allow_fifo);
 260 gboolean is_dir_exist           (const gchar    *dir);
 261 gint change_dir                 (const gchar    *dir);
 262 gint make_dir_hier              (const gchar    *dir);
 263 gint remove_all_files           (const gchar    *dir);
 264 gint remove_all_numbered_files  (const gchar    *dir);
 265 gint remove_dir_recursive       (const gchar    *dir);
 266 gint copy_file                  (const gchar    *src,
 267                                  const gchar    *dest);
 268 gint move_file                  (const gchar    *src,
 269                                  const gchar    *dest);
 270 gint change_file_mode_rw        (FILE           *fp,
 271                                  const gchar    *file);
 272 FILE *my_tmpfile                (void);
 273
 274 #define is_file_exist(file)             file_exist(file, FALSE)
 275 #define is_file_or_fifo_exist(file)     file_exist(file, TRUE)
 276
 277 /* process execution */
 278 gint execute_async              (gchar *const    argv[]);
 279 gint execute_command_line       (const gchar    *cmdline);
 280
 281 /* open URI with external browser */
 282 gint open_uri(const gchar *uri, const gchar *cmdline);
 283
 284 /* time functions */
 285 time_t remote_tzoffset_sec      (const gchar    *zone);
 286 time_t tzoffset_sec             (time_t         *now);
 287 gchar *tzoffset                 (time_t         *now);
 288 void get_rfc822_date            (gchar          *buf,
 289                                  gint            len);
 290
 291 /* logging */
 292 void debug_print(const gchar *format, ...) G_GNUC_PRINTF(1, 2);
 293 void log_print  (const gchar *format, ...) G_GNUC_PRINTF(1, 2);
 294 void log_message(const gchar *format, ...) G_GNUC_PRINTF(1, 2);
 295 void log_warning(const gchar *format, ...) G_GNUC_PRINTF(1, 2);
 296 void log_error  (const gchar *format, ...) G_GNUC_PRINTF(1, 2);
 297
 298 #endif /* __UTILS_H__ */