diff options
Diffstat (limited to 'ncurses-5.3/ncurses/tinfo/doalloc.c')
-rw-r--r-- | ncurses-5.3/ncurses/tinfo/doalloc.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/ncurses-5.3/ncurses/tinfo/doalloc.c b/ncurses-5.3/ncurses/tinfo/doalloc.c new file mode 100644 index 0000000..04d97f2 --- /dev/null +++ b/ncurses-5.3/ncurses/tinfo/doalloc.c @@ -0,0 +1,75 @@ +/**************************************************************************** + * Copyright (c) 1998,2000 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 <dickey@clark.net> 1998 * + ****************************************************************************/ + +/* + * Wrapper for malloc/realloc. Standard implementations allow realloc with + * a null pointer, but older libraries may not (e.g., SunOS). + * + * Also if realloc fails, we discard the old memory to avoid leaks. + */ + +#include <curses.priv.h> + +MODULE_ID("$Id$") + +NCURSES_EXPORT(void *) +_nc_doalloc(void *oldp, size_t amount) +{ + void *newp; + + if (oldp != 0) { + if ((newp = realloc(oldp, amount)) == 0) { + free(oldp); + errno = ENOMEM; /* just in case 'free' reset */ + } + } else { + newp = malloc(amount); + } + return newp; +} + +#if !HAVE_STRDUP +NCURSES_EXPORT(char *) +_nc_strdup(const char *src) +{ + char *dst; + if (src != 0) { + dst = typeMalloc(char, strlen(src) + 1); + if (dst != 0) { + (void) strcpy(dst, src); + } + } else { + dst = 0; + } + return dst; +} +#endif |