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| 1 /* $OpenBSD: strlcpy.c,v 1.5 2001/05/13 15:40:16 deraadt Exp $ */ | |
| 2 | |
| 3 /* | |
| 4 * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> | |
| 5 * All rights reserved. | |
| 6 * | |
| 7 * Redistribution and use in source and binary forms, with or without | |
| 8 * modification, are permitted provided that the following conditions | |
| 9 * are met: | |
| 10 * 1. Redistributions of source code must retain the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer. | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * 3. The name of the author may not be used to endorse or promote products | |
| 16 * derived from this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, | |
| 19 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY | |
| 20 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL | |
| 21 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
| 24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
| 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
| 26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
| 27 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 28 */ | |
| 29 | |
| 30 #if defined(LIBC_SCCS) && !defined(lint) | |
| 31 static char *rcsid = "$OpenBSD: strlcpy.c,v 1.5 2001/05/13 15:40:16 deraadt Exp
$"; | |
| 32 #endif /* LIBC_SCCS and not lint */ | |
| 33 | |
| 34 #include <sys/types.h> | |
| 35 | |
| 36 #ifdef HAVE_CONFIG_H | |
| 37 #include "config.h" | |
| 38 #endif /* HAVE_CONFIG_H */ | |
| 39 | |
| 40 #ifndef HAVE_STRLCPY | |
| 41 #include "strlcpy-internal.h" | |
| 42 | |
| 43 /* | |
| 44 * Copy src to string dst of size siz. At most siz-1 characters | |
| 45 * will be copied. Always NUL terminates (unless siz == 0). | |
| 46 * Returns strlen(src); if retval >= siz, truncation occurred. | |
| 47 */ | |
| 48 size_t | |
| 49 _event_strlcpy(dst, src, siz) | |
| 50 char *dst; | |
| 51 const char *src; | |
| 52 size_t siz; | |
| 53 { | |
| 54 register char *d = dst; | |
| 55 register const char *s = src; | |
| 56 register size_t n = siz; | |
| 57 | |
| 58 /* Copy as many bytes as will fit */ | |
| 59 if (n != 0 && --n != 0) { | |
| 60 do { | |
| 61 if ((*d++ = *s++) == 0) | |
| 62 break; | |
| 63 } while (--n != 0); | |
| 64 } | |
| 65 | |
| 66 /* Not enough room in dst, add NUL and traverse rest of src */ | |
| 67 if (n == 0) { | |
| 68 if (siz != 0) | |
| 69 *d = '\0'; /* NUL-terminate dst */ | |
| 70 while (*s++) | |
| 71 ; | |
| 72 } | |
| 73 | |
| 74 return(s - src - 1); /* count does not include NUL */ | |
| 75 } | |
| 76 #endif | |
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Chromium Code Reviews
Issue 1531573008:
move libevent into base (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master