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view lwlib/lw_error.h @ 508:10f62dc61a75
Fix bad usage of sprintf()
Usage of sprintf() to append to a string in the form of
sprintf(buf, "%s...", buf...) is undefined, regardless whether it
worked on a lot of older systems. It was always a bad idea and it
now breaks on current glibc and gcc development environments.
The moral: if any of your code uses sprintf() in a way similar to
the above, fix it. It may not fail in a benign way.
| author | William Astle <lost@l-w.ca> |
|---|---|
| date | Sun, 10 May 2020 22:38:24 -0600 |
| parents | 8e25147c2aa8 |
| children |
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/* lw_error.h Copyright © 2010 William Astle This file is part of LWTOOLS. LWTOOLS is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef ___lw_error_h_seen___ #define ___lw_error_h_seen___ void lw_error(const char *fmt, ...); void lw_error_setfunc(void (*f)(const char *fmt, ...)); #endif /* ___lw_error_h_seen___ */