| /**************************************************************************** |
| * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc. * |
| * * |
| * Permission is hereby granted, free of charge, to any person obtaining a * |
| * copy of this software and associated documentation files (the * |
| * "Software"), to deal in the Software without restriction, including * |
| * without limitation the rights to use, copy, modify, merge, publish, * |
| * distribute, distribute with modifications, sublicense, and/or sell * |
| * copies of the Software, and to permit persons to whom the Software is * |
| * furnished to do so, subject to the following conditions: * |
| * * |
| * The above copyright notice and this permission notice shall be included * |
| * in all copies or substantial portions of the Software. * |
| * * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * |
| * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * |
| * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * |
| * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * |
| * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * |
| * * |
| * Except as contained in this notice, the name(s) of the above copyright * |
| * holders shall not be used in advertising or otherwise to promote the * |
| * sale, use or other dealings in this Software without prior written * |
| * authorization. * |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Author: Thomas E. Dickey 1997-on * |
| ****************************************************************************/ |
| /* |
| * trace_buf.c - Tracing/Debugging buffers (attributes) |
| */ |
| |
| #include <curses.priv.h> |
| |
| MODULE_ID("$Id: trace_buf.c,v 1.14 2008/08/03 15:13:56 tom Exp $") |
| |
| #define MyList _nc_globals.tracebuf_ptr |
| #define MySize _nc_globals.tracebuf_used |
| |
| static char * |
| _nc_trace_alloc(int bufnum, size_t want) |
| { |
| char *result = 0; |
| |
| if (bufnum >= 0) { |
| if ((size_t) (bufnum + 1) > MySize) { |
| size_t need = (bufnum + 1) * 2; |
| if ((MyList = typeRealloc(TRACEBUF, need, MyList)) != 0) { |
| while (need > MySize) |
| MyList[MySize++].text = 0; |
| } |
| } |
| |
| if (MyList != 0) { |
| if (MyList[bufnum].text == 0 |
| || want > MyList[bufnum].size) { |
| MyList[bufnum].text = typeRealloc(char, want, MyList[bufnum].text); |
| if (MyList[bufnum].text != 0) |
| MyList[bufnum].size = want; |
| } |
| result = MyList[bufnum].text; |
| } |
| } |
| #if NO_LEAKS |
| else { |
| if (MySize) { |
| if (MyList) { |
| while (MySize--) { |
| if (MyList[MySize].text != 0) { |
| free(MyList[MySize].text); |
| } |
| } |
| free(MyList); |
| MyList = 0; |
| } |
| MySize = 0; |
| } |
| } |
| #endif |
| return result; |
| } |
| |
| /* |
| * (re)Allocate a buffer big enough for the caller's wants. |
| */ |
| NCURSES_EXPORT(char *) |
| _nc_trace_buf(int bufnum, size_t want) |
| { |
| char *result = _nc_trace_alloc(bufnum, want); |
| if (result != 0) |
| *result = '\0'; |
| return result; |
| } |
| |
| /* |
| * Append a new string to an existing buffer. |
| */ |
| NCURSES_EXPORT(char *) |
| _nc_trace_bufcat(int bufnum, const char *value) |
| { |
| char *buffer = _nc_trace_alloc(bufnum, 0); |
| if (buffer != 0) { |
| size_t have = strlen(buffer); |
| |
| buffer = _nc_trace_alloc(bufnum, 1 + have + strlen(value)); |
| if (buffer != 0) |
| (void) strcpy(buffer + have, value); |
| |
| } |
| return buffer; |
| } |