basename.3 revision 131504

Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
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$OpenBSD: basename.3,v 1.12 2000/04/18 03:01:25 aaron Exp $
$FreeBSD: head/lib/libc/gen/basename.3 131504 2004-07-02 23:52:20Z ru $

.Dd August 17, 1997 .Dt BASENAME 3 .Os .Sh NAME .Nm basename .Nd extract the base portion of a pathname .Sh SYNOPSIS n libgen.h .Ft char * .Fn basename "const char *path" .Sh DESCRIPTION The .Fn basename function returns the last component from the pathname pointed to by .Fa path , deleting any trailing .Sq / characters. If .Fa path consists entirely of .Sq / characters, a pointer to the string .Qq / is returned. If .Fa path is a null pointer or the empty string, a pointer to the string .Qq . is returned. .Sh RETURN VALUES On successful completion, .Fn basename returns a pointer to the last component of .Fa path .

p If .Fn basename fails, a null pointer is returned and the global variable .Va errno is set to indicate the error. .Sh ERRORS The following error codes may be set in .Va errno : l -tag -width Er t Bq Er ENAMETOOLONG The path component to be returned was larger than .Dv MAXPATHLEN . .El .Sh WARNINGS The .Fn basename function returns a pointer to internal static storage space that will be overwritten by subsequent calls. .Sh SEE ALSO .Xr basename 1 , .Xr dirname 1 , .Xr dirname 3 .Sh STANDARDS The .Fn basename function conforms to .St -xpg4.2 . .Sh HISTORY The .Fn basename function first appeared in .Ox 2.2 and .Fx 4.2 . .Sh AUTHORS .An "Todd C. Miller" Aq Todd.Miller@courtesan.com