1 /**************************************************************************** 2 * Copyright 2019,2020 Thomas E. Dickey * 3 * Copyright 2006-2012,2017 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30 /**************************************************************************** 31 * Author: Thomas E. Dickey * 32 * and: Juergen Pfeifer * 33 ****************************************************************************/ 34 35 #include <curses.priv.h> 36 37 #include <ctype.h> 38 39 #include <tic.h> 40 41 MODULE_ID("$Id: entries.c,v 1.30 2020/02/02 23:34:34 tom Exp $") 42 43 /**************************************************************************** 44 * 45 * Entry queue handling 46 * 47 ****************************************************************************/ 48 /* 49 * The entry list is a doubly linked list with NULLs terminating the lists: 50 * 51 * --------- --------- --------- 52 * | | | | | | offset 53 * |-------| |-------| |-------| 54 * | ----+-->| ----+-->| NULL | next 55 * |-------| |-------| |-------| 56 * | NULL |<--+---- |<--+---- | last 57 * --------- --------- --------- 58 * ^ ^ 59 * | | 60 * | | 61 * _nc_head _nc_tail 62 */ 63 64 NCURSES_EXPORT_VAR(ENTRY *) _nc_head = 0; 65 NCURSES_EXPORT_VAR(ENTRY *) _nc_tail = 0; 66 67 ENTRY * 68 _nc_delink_entry(ENTRY * headp, TERMTYPE2 *tterm) 69 /* delink the allocated storage for the given list entry */ 70 { 71 ENTRY *ep, *last; 72 73 for (last = 0, ep = headp; ep != 0; last = ep, ep = ep->next) { 74 if (&(ep->tterm) == tterm) { 75 if (last != 0) { 76 last->next = ep->next; 77 } 78 if (ep->next != 0) { 79 ep->next->last = last; 80 } 81 if (ep == _nc_head) { 82 _nc_head = ep->next; 83 } 84 if (ep == _nc_tail) { 85 _nc_tail = last; 86 } 87 break; 88 } 89 } 90 return ep; 91 } 92 93 NCURSES_EXPORT(void) 94 _nc_free_entry(ENTRY * headp, TERMTYPE2 *tterm) 95 /* free the allocated storage consumed by the given list entry */ 96 { 97 ENTRY *ep; 98 99 if ((ep = _nc_delink_entry(headp, tterm)) != 0) { 100 free(ep); 101 } 102 } 103 104 NCURSES_EXPORT(void) 105 _nc_free_entries(ENTRY * headp) 106 /* free the allocated storage consumed by list entries */ 107 { 108 (void) headp; /* unused - _nc_head is altered here! */ 109 110 while (_nc_head != 0) { 111 _nc_free_termtype2(&(_nc_head->tterm)); 112 } 113 } 114 115 NCURSES_EXPORT(void) 116 _nc_leaks_tinfo(void) 117 { 118 #if NO_LEAKS 119 char *s; 120 #endif 121 122 T((T_CALLED("_nc_free_tinfo()"))); 123 #if NO_LEAKS 124 _nc_globals.leak_checking = TRUE; 125 _nc_free_tparm(); 126 _nc_tgetent_leaks(); 127 128 if (TerminalOf(CURRENT_SCREEN) != 0) { 129 del_curterm(TerminalOf(CURRENT_SCREEN)); 130 } 131 _nc_forget_prescr(); 132 133 _nc_comp_captab_leaks(); 134 _nc_comp_userdefs_leaks(); 135 _nc_free_entries(_nc_head); 136 _nc_get_type(0); 137 _nc_first_name(0); 138 _nc_db_iterator_leaks(); 139 _nc_keyname_leaks(); 140 #if BROKEN_LINKER || USE_REENTRANT 141 _nc_names_leaks(); 142 _nc_codes_leaks(); 143 FreeIfNeeded(_nc_prescreen.real_acs_map); 144 #endif 145 _nc_comp_error_leaks(); 146 147 if ((s = _nc_home_terminfo()) != 0) 148 free(s); 149 150 #ifdef TRACE 151 T((T_RETURN(""))); 152 curses_trace(0); 153 _nc_trace_buf(-1, (size_t) 0); 154 #endif 155 156 #endif /* NO_LEAKS */ 157 returnVoid; 158 } 159 160 #if NO_LEAKS 161 NCURSES_EXPORT(void) 162 _nc_free_tinfo(int code) 163 { 164 _nc_leaks_tinfo(); 165 exit(code); 166 } 167 #endif 168 169 NCURSES_EXPORT(void) 170 exit_terminfo(int code) 171 { 172 #if NO_LEAKS 173 _nc_leaks_tinfo(); 174 #endif 175 exit(code); 176 } 177