1 /**************************************************************************** 2 * Copyright 2020 Thomas E. Dickey * 3 * Copyright 2012-2013,2016 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 2012 * 32 ****************************************************************************/ 33 34 #ifndef STRING_HACKS_H 35 #define STRING_HACKS_H 1 36 37 #include <ncurses_cfg.h> 38 39 #if HAVE_BSD_STRING_H 40 #include <bsd/string.h> 41 #endif 42 43 /* 44 * $Id: nc_string.h,v 1.8 2020/02/02 23:34:34 tom Exp $ 45 * 46 * String-hacks. Use these macros to stifle warnings on (presumably) correct 47 * uses of strcat, strcpy and sprintf. 48 * 49 * By the way - 50 * A fundamental limitation of the interfaces (and frequent issue in bug 51 * reports using these functions) is that sizes are passed as unsigned values 52 * (with associated sign-extension problems), limiting their effectiveness 53 * when checking for buffer overflow. 54 */ 55 56 #ifdef __cplusplus 57 #define NCURSES_VOID /* nothing */ 58 #else 59 #define NCURSES_VOID (void) 60 #endif 61 62 #if USE_STRING_HACKS && HAVE_STRLCAT 63 #define _nc_STRCAT(d,s,n) NCURSES_VOID strlcat((d),(s),NCURSES_CAST(size_t,n)) 64 #define _nc_STRNCAT(d,s,m,n) NCURSES_VOID strlcat((d),(s),NCURSES_CAST(size_t,m)) 65 #else 66 #define _nc_STRCAT(d,s,n) NCURSES_VOID strcat((d),(s)) 67 #define _nc_STRNCAT(d,s,m,n) NCURSES_VOID strncat((d),(s),(n)) 68 #endif 69 70 #if USE_STRING_HACKS && HAVE_STRLCPY 71 #define _nc_STRCPY(d,s,n) NCURSES_VOID strlcpy((d),(s),NCURSES_CAST(size_t,n)) 72 #define _nc_STRNCPY(d,s,n) NCURSES_VOID strlcpy((d),(s),NCURSES_CAST(size_t,n)) 73 #else 74 #define _nc_STRCPY(d,s,n) NCURSES_VOID strcpy((d),(s)) 75 #define _nc_STRNCPY(d,s,n) NCURSES_VOID strncpy((d),(s),(n)) 76 #endif 77 78 #if USE_STRING_HACKS && HAVE_SNPRINTF 79 #define _nc_SPRINTF NCURSES_VOID snprintf 80 #define _nc_SLIMIT(n) NCURSES_CAST(size_t,n), 81 #else 82 #define _nc_SPRINTF NCURSES_VOID sprintf 83 #define _nc_SLIMIT(n) /* nothing */ 84 #endif 85 86 #endif /* STRING_HACKS_H */ 87