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46 lines
766 B
C
46 lines
766 B
C
/*
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* Copyright (C) 2002 Manuel Novoa III
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* Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
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*
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* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
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*/
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#define __need_NULL
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#include <stddef.h>
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#include <libgen.h>
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char *dirname(char *path)
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{
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static const char null_or_empty_or_noslash[] = ".";
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register char *s;
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register char *last;
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char *first;
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last = s = path;
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if (s != NULL) {
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LOOP:
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while (*s && (*s != '/')) ++s;
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first = s;
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while (*s == '/') ++s;
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if (*s) {
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last = first;
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goto LOOP;
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}
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if (last == path) {
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if (*last != '/') {
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goto DOT;
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}
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if ((*++last == '/') && (last[1] == 0)) {
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++last;
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}
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}
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*last = 0;
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return path;
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}
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DOT:
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return (char *) null_or_empty_or_noslash;
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}
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