Date: Sat, 18 Jun 2011 00:33:34 +0000 (UTC) From: Xin LI <delphij@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r223216 - head/lib/libc/gen Message-ID: <201106180033.p5I0XYuc014532@svn.freebsd.org>
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Author: delphij Date: Sat Jun 18 00:33:34 2011 New Revision: 223216 URL: http://svn.freebsd.org/changeset/base/223216 Log: Sync with OpenBSD, primarily make the code easier to read, and a license change to standard OpenBSD ISC license. Obtained from: OpenBSD MFC after: 2 weeks Modified: head/lib/libc/gen/basename.3 head/lib/libc/gen/basename.c Modified: head/lib/libc/gen/basename.3 ============================================================================== --- head/lib/libc/gen/basename.3 Sat Jun 18 00:29:10 2011 (r223215) +++ head/lib/libc/gen/basename.3 Sat Jun 18 00:33:34 2011 (r223216) @@ -1,33 +1,22 @@ +.\" $OpenBSD: basename.3,v 1.20 2007/05/31 19:19:28 jmc Exp $ .\" .\" Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com> -.\" All rights reserved. .\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. The name of the author may not be used to endorse or promote products -.\" derived from this software without specific prior written permission. +.\" 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. .\" -.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, -.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY -.\" AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL -.\" THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, -.\" EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, -.\" PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; -.\" OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, -.\" WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR -.\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF -.\" ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +.\" 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. .\" -.\" $OpenBSD: basename.3,v 1.12 2000/04/18 03:01:25 aaron Exp $ .\" $FreeBSD$ .\" -.Dd October 6, 2009 +.Dd March 31, 2010 .Dt BASENAME 3 .Os .Sh NAME @@ -42,8 +31,7 @@ .Sh DESCRIPTION The .Fn basename -function -returns the last component from the pathname pointed to by +function returns the last component from the pathname pointed to by .Fa path , deleting any trailing .Sq \&/ @@ -111,4 +99,15 @@ function first appeared in and .Fx 4.2 . .Sh AUTHORS -.An "Todd C. Miller" Aq Todd.Miller@courtesan.com +.An Todd C. Miller +.Sh CAVEATS +.Fn basename +returns a pointer to internal static storage space that will be overwritten +by subsequent calls. +.Pp +Other vendor implementations of +.Fn basename +may modify the contents of the string passed to +.Fn basename ; +this should be taken into account when writing code which calls this function +if portability is desired. Modified: head/lib/libc/gen/basename.c ============================================================================== --- head/lib/libc/gen/basename.c Sat Jun 18 00:29:10 2011 (r223215) +++ head/lib/libc/gen/basename.c Sat Jun 18 00:33:34 2011 (r223216) @@ -1,35 +1,21 @@ +/* $OpenBSD: basename.c,v 1.14 2005/08/08 08:05:33 espie Exp $ */ + /* - * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com> - * All rights reserved. + * Copyright (c) 1997, 2004 Todd C. Miller <Todd.Miller@courtesan.com> * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. + * 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. * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * 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. */ -#if 0 -#ifndef lint -static char rcsid[] = "$OpenBSD: basename.c,v 1.4 1999/05/30 17:10:30 espie Exp $"; -#endif /* not lint */ -#endif #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); @@ -40,27 +26,28 @@ __FBSDID("$FreeBSD$"); #include <sys/param.h> char * -basename_r(path, bname) - const char *path; - char *bname; +basename_r(const char *path, char *bname) { const char *endp, *startp; + size_t len; /* Empty or NULL string gets treated as "." */ if (path == NULL || *path == '\0') { - (void)strcpy(bname, "."); - return(bname); + bname[0] = '.'; + bname[1] = '\0'; + return (bname); } - /* Strip trailing slashes */ + /* Strip any trailing slashes */ endp = path + strlen(path) - 1; while (endp > path && *endp == '/') endp--; /* All slashes becomes "/" */ if (endp == path && *endp == '/') { - (void)strcpy(bname, "/"); - return(bname); + bname[0] = '/'; + bname[1] = '\0'; + return (bname); } /* Find the start of the base */ @@ -68,18 +55,18 @@ basename_r(path, bname) while (startp > path && *(startp - 1) != '/') startp--; - if (endp - startp + 2 > MAXPATHLEN) { + len = endp - startp + 1; + if (len >= MAXPATHLEN) { errno = ENAMETOOLONG; - return(NULL); + return (NULL); } - (void)strncpy(bname, startp, endp - startp + 1); - bname[endp - startp + 1] = '\0'; - return(bname); + memcpy(bname, startp, len); + bname[len] = '\0'; + return (bname); } char * -basename(path) - const char *path; +basename(const char *path) { static char *bname = NULL;
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