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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 02:23:56 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 02:23:56 +0000 |
commit | 9620f76a210d9d8c1aaff25e99d6dc513f87e6e9 (patch) | |
tree | ceecc90fb95780872c35da764c5163f38e4727c4 /lib/util/strlcpy.c | |
parent | Initial commit. (diff) | |
download | sudo-9620f76a210d9d8c1aaff25e99d6dc513f87e6e9.tar.xz sudo-9620f76a210d9d8c1aaff25e99d6dc513f87e6e9.zip |
Adding upstream version 1.8.27.upstream/1.8.27upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/util/strlcpy.c')
-rw-r--r-- | lib/util/strlcpy.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/lib/util/strlcpy.c b/lib/util/strlcpy.c new file mode 100644 index 0000000..ea8ab4d --- /dev/null +++ b/lib/util/strlcpy.c @@ -0,0 +1,62 @@ +/* $OpenBSD: strlcpy.c,v 1.12 2015/01/15 03:54:12 millert Exp $ */ + +/* + * Copyright (c) 1998, 2003-2005, 2010-2011, 2013-2015 + * Todd C. Miller <Todd.Miller@sudo.ws> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * This is an open source non-commercial project. Dear PVS-Studio, please check it. + * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com + */ + +#include <config.h> + +#ifndef HAVE_STRLCPY + +#include <sys/types.h> + +#include "sudo_compat.h" + +/* + * Copy string src to buffer dst of size dsize. At most dsize-1 + * chars will be copied. Always NUL terminates (unless dsize == 0). + * Returns strlen(src); if retval >= dsize, truncation occurred. + */ +size_t +sudo_strlcpy(char *dst, const char *src, size_t dsize) +{ + const char *osrc = src; + size_t nleft = dsize; + + /* Copy as many bytes as will fit. */ + if (nleft != 0) { + while (--nleft != 0) { + if ((*dst++ = *src++) == '\0') + break; + } + } + + /* Not enough room in dst, add NUL and traverse rest of src. */ + if (nleft == 0) { + if (dsize != 0) + *dst = '\0'; /* NUL-terminate dst */ + while (*src++) + continue; + } + + return(src - osrc - 1); /* count does not include NUL */ +} +#endif /* HAVE_STRLCPY */ |