src/main/version.c

   1 /* Version information */
   2
   3 #ifdef HAVE_CONFIG_H
   4 #include "config.h"
   5 #endif
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #ifdef HAVE_UNISTD_H
  11 #include <unistd.h>
  12 #endif
  13
  14 #include "elinks.h"
  15
  16 #include "intl/gettext/libintl.h"
  17 #include "main/module.h"
  18 #include "main/version.h"
  19 #include "terminal/terminal.h"
  20 #include "util/error.h"
  21 #include "util/memory.h"
  22 #include "util/string.h"
  23 #include "vernum.h"
  24
  25
  26 static void
  27 add_module_to_string(struct string *string, struct module *module,
  28                      struct terminal *term)
  29 {
  30         struct module *submodule;
  31         int i;
  32
  33         if (module->name) add_to_string(string, _(module->name, term));
  34
  35         if (!module->submodules) return;
  36
  37         add_to_string(string, " (");
  38
  39         foreach_module (submodule, module->submodules, i) {
  40                 if (i > 0) add_to_string(string, ", ");
  41                 add_module_to_string(string, submodule, term);
  42         }
  43
  44         add_to_string(string, ")");
  45 }
  46
  47 static void
  48 add_modules_to_string(struct string *string, struct terminal *term)
  49 {
  50         struct module *module;
  51         int i;
  52
  53         foreach_module (module, builtin_modules, i) {
  54                 if (i > 0) add_to_string(string, ", ");
  55                 add_module_to_string(string, module, term);
  56         }
  57 }
  58
  59 /* Wrap string on spaces starting at position @start_at, trying
  60  * to keep lines undex @maxlen length */
  61 static void
  62 wrap_string(struct string *string, int start_at, int maxlen)
  63 {
  64         unsigned char *pos, *start_pos;
  65         unsigned char *last_pos = NULL;
  66
  67         assert(string && string->source && start_at < string->length);
  68         if_assert_failed return;
  69
  70         if (maxlen <= 0) return;
  71
  72         pos = start_pos = &string->source[start_at];
  73         while ((pos = strchr(pos, ' '))) {
  74                 int len = pos - start_pos;
  75
  76                 if (len < maxlen) {
  77                         last_pos = pos;
  78                         pos++;
  79                 } else {
  80                         if (last_pos) *last_pos = '\n';
  81                         pos = start_pos = last_pos + 1;
  82                 }
  83                 if (!*pos) break;
  84         }
  85 }
  86
  87 /* @more will add more information especially for info box. */
  88 unsigned char *
  89 get_dyn_full_version(struct terminal *term, int more)
  90 {
  91         static const unsigned char comma[] = ", ";
  92         struct string string;
  93
  94         if (!init_string(&string)) return NULL;
  95
  96         add_format_to_string(&string, "ELinks %s", VERSION_STRING);
  97         if (*build_id) {
  98                 add_char_to_string(&string, more ? '\n' : ' ');
  99                 add_format_to_string(&string, "%s", build_id);
 100         }
 101
 102         add_char_to_string(&string, '\n');
 103         add_format_to_string(&string, _("Built on %s %s", term),
 104                              build_date, build_time);
 105
 106         if (more) {
 107                 add_to_string(&string, "\n\n");
 108                 add_to_string(&string, _("Text WWW browser", term));
 109         }
 110
 111         string_concat(&string,
 112                 "\n\n",
 113                 _("Features:", term), "\n",
 114 #ifndef CONFIG_DEBUG
 115                 _("Standard", term),
 116 #else
 117                 _("Debug", term),
 118 #endif
 119 #ifdef CONFIG_FASTMEM
 120                 comma, _("Fastmem", term),
 121 #endif
 122 #ifdef CONFIG_OWN_LIBC
 123                 comma, _("Own Libc Routines", term),
 124 #endif
 125 #ifndef CONFIG_BACKTRACE
 126                 comma, _("No Backtrace", term),
 127 #endif
 128 #ifdef CONFIG_IPV6
 129                 comma, "IPv6",
 130 #endif
 131 #ifdef CONFIG_GZIP
 132                 comma, "gzip",
 133 #endif
 134 #ifdef CONFIG_BZIP2
 135                 comma, "bzip2",
 136 #endif
 137 #ifdef CONFIG_LZMA
 138                 comma, "lzma",
 139 #endif
 140 #ifndef CONFIG_MOUSE
 141                 comma, _("No mouse", term),
 142 #endif
 143 #ifdef CONFIG_UTF8
 144                 comma, "UTF-8",
 145 #endif
 146 #ifdef CONFIG_COMBINE
 147                 comma, _("Combining characters", term),
 148 #endif
 149                 comma,
 150                 (unsigned char *) NULL
 151         );
 152
 153         add_modules_to_string(&string, term);
 154
 155         if (!more) {
 156                 int start_at = 0;
 157                 unsigned char *last_newline = strrchr(string.source, '\n');
 158
 159                 if (last_newline) {
 160                         start_at = last_newline - string.source + 1;
 161                 }
 162
 163                 wrap_string(&string, start_at, 72);
 164         }
 165
 166         return string.source;
 167 }
 168
 169 /* This one is used to prevent usage of straconcat() at backtrace time. */
 170 void
 171 init_static_version(void)
 172 {
 173         unsigned char *s = get_dyn_full_version((struct terminal *) NULL, 0);
 174
 175         if (s) {
 176                 safe_strncpy(full_static_version, s, sizeof(full_static_version));
 177                 mem_free(s);
 178         }
 179 }