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* AUTHORS, HACKING, Makefile.am, bootstrap.conf, build-aux/edit-readme-alpha, build-aux/no-bogus-m4-defines, cfg.mk, configure.ac, libltdl/configure.ac, libltdl/libltdl/lt__alloc.h, libltdl/libltdl/lt__argz_.h, libltdl/libltdl/lt__dirent.h, libltdl/libltdl/lt__glibc.h, libltdl/libltdl/lt__private.h, libltdl/libltdl/lt__strl.h, libltdl/libltdl/lt_dlloader.h, libltdl/libltdl/lt_error.h, libltdl/libltdl/lt_system.h, libltdl/libltdl/slist.h, libltdl/loaders/dld_link.c, libltdl/loaders/dlopen.c, libltdl/loaders/dyld.c, libltdl/loaders/load_add_on.c, libltdl/loaders/loadlibrary.c, libltdl/loaders/preopen.c, libltdl/loaders/shl_load.c, libltdl/lt__alloc.c, libltdl/lt__argz.c, libltdl/lt__dirent.c, libltdl/lt__strl.c, libltdl/lt_dlloader.c, libltdl/lt_error.c, libltdl/ltdl.c, libltdl/ltdl.h, libltdl/ltdl.mk, libltdl/slist.c, tests/am-subdir.at, tests/archive-in-archive.at, tests/bindir.at, tests/bug_62343.at, tests/cdemo.at, tests/cmdline_wrap.at, tests/configure-funcs.at, tests/configure-iface.at, tests/convenience.at, tests/ctor.at, tests/cwrapper.at, tests/darwin.at, tests/demo.at, tests/depdemo.at, tests/deplib-in-subdir.at, tests/deplibs-ident.at, tests/deplibs-mingw.at, tests/destdir.at, tests/dlloader-api.at, tests/dumpbin-symbols.at, tests/duplicate_conv.at, tests/duplicate_deps.at, tests/duplicate_members.at, tests/early-libtool.at, tests/exceptions.at, tests/execute-mode.at, tests/exeext.at, tests/export-def.at, tests/export.at, tests/f77demo.at, tests/fail.at, tests/fcdemo.at, tests/flags.at, tests/help.at, tests/indirect_deps.at, tests/infer-tag.at, tests/inherited_flags.at, tests/install.at, tests/lalib-syntax.at, tests/libtool.at, tests/libtoolize.at, tests/link-order.at, tests/link-order2.at, tests/loadlibrary.at, tests/localization.at, tests/lt_dladvise.at, tests/lt_dlexit.at, tests/lt_dlopen.at, tests/lt_dlopen_a.at, tests/lt_dlopenext.at, tests/ltdl-api.at, tests/ltdl-libdir.at, tests/mdemo.at, tests/need_lib_prefix.at, tests/no-executables.at, tests/nocase.at, tests/nonrecursive.at, tests/old-m4-iface.at, tests/pic_flag.at, tests/recursive.at, tests/resident.at, tests/runpath-in-lalib.at, tests/search-path.at, tests/shlibpath.at, tests/slist.at, tests/standalone.at, tests/static.at, tests/stresstest.at, tests/subproject.at, tests/sysroot.at, tests/tagdemo.at, tests/template.at, tests/testsuite.at, tests/versioning.at, tests/with-pic.at: Replace FSF address in each file's license block with a URL that points to licenses online hosted by GNU.
126 lines
3.4 KiB
C
126 lines
3.4 KiB
C
/* lt__strl.c -- size-bounded string copying and concatenation
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Copyright (C) 2004, 2011-2019, 2021-2024 Free Software Foundation,
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Inc.
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Written by Bob Friesenhahn, 2004
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NOTE: The canonical source of this file is maintained with the
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GNU Libtool package. Report bugs to bug-libtool@gnu.org.
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GNU Libltdl is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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As a special exception to the GNU Lesser General Public License,
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if you distribute this file as part of a program or library that
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is built using GNU Libtool, you may include this file under the
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same distribution terms that you use for the rest of that program.
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GNU Libltdl is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with GNU Libltdl. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <assert.h>
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#include <string.h>
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#include "lt__strl.h"
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/*
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lt_strlcat appends the NULL-terminated string src to the end of dst.
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It will append at most dstsize - strlen(dst) - 1 bytes,
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NULL-terminating the result. The total length of the string that
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would have been created given sufficient buffer size (may be longer
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than dstsize) is returned. This function substitutes for strlcat(),
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which is available under NetBSD, FreeBSD and Solaris 9.
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Buffer overflow can be checked as follows:
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if (lt_strlcat(dst, src, dstsize) >= dstsize)
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return -1;
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*/
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#if !defined HAVE_STRLCAT
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size_t
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lt_strlcat(char *dst, const char *src, const size_t dstsize)
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{
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size_t length;
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char *p;
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const char *q;
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assert(dst != NULL);
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assert(src != (const char *) NULL);
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assert(dstsize >= 1);
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length=strlen(dst);
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/*
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Copy remaining characters from src while constraining length to
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size - 1.
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*/
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for ( p = dst + length, q = src;
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(*q != 0) && (length < dstsize - 1);
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length++, p++, q++ )
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*p = *q;
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dst[length]='\0';
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/*
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Add remaining length of src to length.
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*/
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while (*q++)
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length++;
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return length;
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}
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#endif /* !defined HAVE_STRLCAT */
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/*
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lt_strlcpy copies up to dstsize - 1 characters from the NULL-terminated
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string src to dst, NULL-terminating the result. The total length of
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the string that would have been created given sufficient buffer
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size (may be longer than dstsize) is returned. This function
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substitutes for strlcpy(), which is available under OpenBSD, FreeBSD
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and Solaris 9.
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Buffer overflow can be checked as follows:
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if (lt_strlcpy(dst, src, dstsize) >= dstsize)
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return -1;
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*/
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#if !defined HAVE_STRLCPY
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size_t
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lt_strlcpy(char *dst, const char *src, const size_t dstsize)
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{
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size_t length=0;
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char *p;
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const char *q;
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assert(dst != NULL);
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assert(src != (const char *) NULL);
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assert(dstsize >= 1);
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/*
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Copy src to dst within bounds of size-1.
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*/
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for ( p=dst, q=src, length=0;
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(*q != 0) && (length < dstsize-1);
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length++, p++, q++ )
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*p = *q;
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dst[length]='\0';
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/*
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Add remaining length of src to length.
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*/
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while (*q++)
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length++;
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return length;
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}
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#endif /* !defined HAVE_STRLCPY */
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