1 /**************************************************************************** 2 * Copyright 2021,2023 Thomas E. Dickey * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /* $Id: nc_access.h,v 1.6 2023/05/06 10:54:55 tom Exp $ */ 30 31 #ifndef NC_ACCESS_included 32 #define NC_ACCESS_included 1 33 /* *INDENT-OFF* */ 34 35 #include <ncurses_cfg.h> 36 #include <curses.h> 37 #include <sys/types.h> 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 /* 44 * Turn off the 'use_terminfo_vars()' symbol to limit access to environment 45 * variables when running with privileges. 46 */ 47 #if defined(USE_ROOT_ENVIRON) && defined(USE_SETUID_ENVIRON) 48 #define use_terminfo_vars() 1 49 #else 50 #define use_terminfo_vars() _nc_env_access() 51 #endif 52 53 extern NCURSES_EXPORT(int) _nc_env_access (void); 54 55 /* 56 * Turn off this symbol to limit access to files when running setuid. 57 */ 58 #ifdef USE_ROOT_ACCESS 59 60 #define safe_fopen(name,mode) fopen(name,mode) 61 #define safe_open2(name,flags) open(name,flags) 62 #define safe_open3(name,flags,mode) open(name,flags,mode) 63 64 #else 65 66 #define safe_fopen(name,mode) _nc_safe_fopen(name,mode) 67 #define safe_open2(name,flags) _nc_safe_open3(name,flags,0) 68 #define safe_open3(name,flags,mode) _nc_safe_open3(name,flags,mode) 69 extern NCURSES_EXPORT(FILE *) _nc_safe_fopen (const char *, const char *); 70 extern NCURSES_EXPORT(int) _nc_safe_open3 (const char *, int, mode_t); 71 72 #endif 73 74 #ifdef __cplusplus 75 } 76 #endif 77 78 /* *INDENT-ON* */ 79 80 #endif /* NC_ACCESS_included */ 81