1 /**************************************************************************** 2 * Copyright (c) 1998 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 <dickey@clark.net> 1997 * 31 ****************************************************************************/ 32 /* 33 * trace_buf.c - Tracing/Debugging buffers (attributes) 34 */ 35 36 #include <curses.priv.h> 37 38 MODULE_ID("$Id: trace_buf.c,v 1.7 1999/02/27 19:50:58 tom Exp $") 39 40 typedef struct { 41 char *text; 42 size_t size; 43 } LIST; 44 45 char * _nc_trace_buf(int bufnum, size_t want) 46 { 47 static LIST *list; 48 static size_t have; 49 50 #if NO_LEAKS 51 if (bufnum < 0) { 52 if (have) { 53 while (have--) { 54 free(list[have].text); 55 } 56 free(list); 57 } 58 return 0; 59 } 60 #endif 61 62 if ((size_t)(bufnum+1) > have) { 63 size_t need = (bufnum + 1) * 2; 64 if ((list = typeRealloc(LIST, need, list)) == 0) 65 return(0); 66 while (need > have) 67 list[have++].text = 0; 68 } 69 70 if (list[bufnum].text == 0 71 || want > list[bufnum].size) 72 { 73 if ((list[bufnum].text = typeRealloc(char, want, list[bufnum].text)) != 0) 74 list[bufnum].size = want; 75 } 76 77 if (list[bufnum].text != 0) 78 *(list[bufnum].text) = '\0'; 79 return list[bufnum].text; 80 } 81