comparison: openpkg/patch.strnlen.c
openpkg/patch.strnlen.c
- changeset 514
- b0b94589986b
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| -1:000000000000 | 0:4a3452509483 |
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| 1 /* Find the length of STRING, but scan at most MAXLEN characters. | |
| 2 Copyright (C) 2005, 2006, 2007, 2009 Free Software Foundation, Inc. | |
| 3 Written by Simon Josefsson. | |
| 4 | |
| 5 This program is free software; you can redistribute it and/or modify | |
| 6 it under the terms of the GNU General Public License as published by | |
| 7 the Free Software Foundation; either version 2, or (at your option) | |
| 8 any later version. | |
| 9 | |
| 10 This program is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 GNU General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU General Public License | |
| 16 along with this program; if not, write to the Free Software Foundation, | |
| 17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
| 18 | |
| 19 #include <config.h> | |
| 20 | |
| 21 #include <string.h> | |
| 22 | |
| 23 /* Find the length of STRING, but scan at most MAXLEN characters. | |
| 24 If no '\0' terminator is found in that many characters, return MAXLEN. */ | |
| 25 | |
| 26 size_t | |
| 27 strnlen (const char *string, size_t maxlen) | |
| 28 { | |
| 29 const char *end = memchr (string, '\0', maxlen); | |
| 30 return end ? (size_t) (end - string) : maxlen; | |
| 31 } |
