diff options
Diffstat (limited to 'crypto/openssh/openbsd-compat/basename.c')
| -rw-r--r-- | crypto/openssh/openbsd-compat/basename.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/crypto/openssh/openbsd-compat/basename.c b/crypto/openssh/openbsd-compat/basename.c new file mode 100644 index 0000000..5a3823b --- /dev/null +++ b/crypto/openssh/openbsd-compat/basename.c @@ -0,0 +1,73 @@ +/* $OpenBSD: basename.c,v 1.8 2002/06/09 05:03:59 deraadt 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. + * + * 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. + */ +#include "includes.h" + +#if !defined(HAVE_BASENAME) + +#ifndef lint +static char rcsid[] = "$OpenBSD: basename.c,v 1.8 2002/06/09 05:03:59 deraadt Exp $"; +#endif /* not lint */ + +char * +basename(const char *path) +{ + static char bname[MAXPATHLEN]; + register const char *endp, *startp; + + /* Empty or NULL string gets treated as "." */ + if (path == NULL || *path == '\0') { + (void)strlcpy(bname, ".", sizeof bname); + return(bname); + } + + /* Strip trailing slashes */ + endp = path + strlen(path) - 1; + while (endp > path && *endp == '/') + endp--; + + /* All slashes become "/" */ + if (endp == path && *endp == '/') { + (void)strlcpy(bname, "/", sizeof bname); + return(bname); + } + + /* Find the start of the base */ + startp = endp; + while (startp > path && *(startp - 1) != '/') + startp--; + + if (endp - startp + 2 > sizeof(bname)) { + errno = ENAMETOOLONG; + return(NULL); + } + strlcpy(bname, startp, endp - startp + 2); + return(bname); +} + +#endif /* !defined(HAVE_BASENAME) */ |
