1 /**************************************************************************** 2 * Copyright (c) 2012-2013,2016 Free Software Foundation, Inc. * 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 /**************************************************************************** 30 * Author: Thomas E. Dickey 2012 * 31 ****************************************************************************/ 32 33 #ifndef STRING_HACKS_H 34 #define STRING_HACKS_H 1 35 36 #include <ncurses_cfg.h> 37 38 #if HAVE_BSD_STRING_H 39 #include <bsd/string.h> 40 #endif 41 42 /* 43 * $Id: nc_string.h,v 1.7 2016/09/10 19:57:15 tom Exp $ 44 * 45 * String-hacks. Use these macros to stifle warnings on (presumably) correct 46 * uses of strcat, strcpy and sprintf. 47 * 48 * By the way - 49 * A fundamental limitation of the interfaces (and frequent issue in bug 50 * reports using these functions) is that sizes are passed as unsigned values 51 * (with associated sign-extension problems), limiting their effectiveness 52 * when checking for buffer overflow. 53 */ 54 55 #ifdef __cplusplus 56 #define NCURSES_VOID /* nothing */ 57 #else 58 #define NCURSES_VOID (void) 59 #endif 60 61 #if USE_STRING_HACKS && HAVE_STRLCAT 62 #define _nc_STRCAT(d,s,n) NCURSES_VOID strlcat((d),(s),NCURSES_CAST(size_t,n)) 63 #define _nc_STRNCAT(d,s,m,n) NCURSES_VOID strlcat((d),(s),NCURSES_CAST(size_t,m)) 64 #else 65 #define _nc_STRCAT(d,s,n) NCURSES_VOID strcat((d),(s)) 66 #define _nc_STRNCAT(d,s,m,n) NCURSES_VOID strncat((d),(s),(n)) 67 #endif 68 69 #if USE_STRING_HACKS && HAVE_STRLCPY 70 #define _nc_STRCPY(d,s,n) NCURSES_VOID strlcpy((d),(s),NCURSES_CAST(size_t,n)) 71 #define _nc_STRNCPY(d,s,n) NCURSES_VOID strlcpy((d),(s),NCURSES_CAST(size_t,n)) 72 #else 73 #define _nc_STRCPY(d,s,n) NCURSES_VOID strcpy((d),(s)) 74 #define _nc_STRNCPY(d,s,n) NCURSES_VOID strncpy((d),(s),(n)) 75 #endif 76 77 #if USE_STRING_HACKS && HAVE_SNPRINTF 78 #define _nc_SPRINTF NCURSES_VOID snprintf 79 #define _nc_SLIMIT(n) NCURSES_CAST(size_t,n), 80 #else 81 #define _nc_SPRINTF NCURSES_VOID sprintf 82 #define _nc_SLIMIT(n) /* nothing */ 83 #endif 84 85 #endif /* STRING_HACKS_H */ 86