xref: /illumos-gate/usr/src/contrib/ast/src/lib/libast/comp/fnmatch.c (revision b30d193948be5a7794d7ae3ba0ed9c2f72c88e0f)
1*b30d1939SAndy Fiddaman /***********************************************************************
2*b30d1939SAndy Fiddaman *                                                                      *
3*b30d1939SAndy Fiddaman *               This software is part of the ast package               *
4*b30d1939SAndy Fiddaman *          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5*b30d1939SAndy Fiddaman *                      and is licensed under the                       *
6*b30d1939SAndy Fiddaman *                 Eclipse Public License, Version 1.0                  *
7*b30d1939SAndy Fiddaman *                    by AT&T Intellectual Property                     *
8*b30d1939SAndy Fiddaman *                                                                      *
9*b30d1939SAndy Fiddaman *                A copy of the License is available at                 *
10*b30d1939SAndy Fiddaman *          http://www.eclipse.org/org/documents/epl-v10.html           *
11*b30d1939SAndy Fiddaman *         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
12*b30d1939SAndy Fiddaman *                                                                      *
13*b30d1939SAndy Fiddaman *              Information and Software Systems Research               *
14*b30d1939SAndy Fiddaman *                            AT&T Research                             *
15*b30d1939SAndy Fiddaman *                           Florham Park NJ                            *
16*b30d1939SAndy Fiddaman *                                                                      *
17*b30d1939SAndy Fiddaman *                 Glenn Fowler <gsf@research.att.com>                  *
18*b30d1939SAndy Fiddaman *                  David Korn <dgk@research.att.com>                   *
19*b30d1939SAndy Fiddaman *                   Phong Vo <kpv@research.att.com>                    *
20*b30d1939SAndy Fiddaman *                                                                      *
21*b30d1939SAndy Fiddaman ***********************************************************************/
22*b30d1939SAndy Fiddaman #pragma prototyped
23*b30d1939SAndy Fiddaman /*
24*b30d1939SAndy Fiddaman  * fnmatch implementation
25*b30d1939SAndy Fiddaman  */
26*b30d1939SAndy Fiddaman 
27*b30d1939SAndy Fiddaman #include <ast_lib.h>
28*b30d1939SAndy Fiddaman 
29*b30d1939SAndy Fiddaman #include <ast.h>
30*b30d1939SAndy Fiddaman #include <regex.h>
31*b30d1939SAndy Fiddaman #include <fnmatch.h>
32*b30d1939SAndy Fiddaman 
33*b30d1939SAndy Fiddaman typedef struct
34*b30d1939SAndy Fiddaman {
35*b30d1939SAndy Fiddaman 	int	fnm;		/* fnmatch flag			*/
36*b30d1939SAndy Fiddaman 	int	reg;		/* regex flag			*/
37*b30d1939SAndy Fiddaman } Map_t;
38*b30d1939SAndy Fiddaman 
39*b30d1939SAndy Fiddaman static const Map_t	map[] =
40*b30d1939SAndy Fiddaman {
41*b30d1939SAndy Fiddaman 	FNM_AUGMENTED,	REG_AUGMENTED,
42*b30d1939SAndy Fiddaman 	FNM_ICASE,	REG_ICASE,
43*b30d1939SAndy Fiddaman 	FNM_NOESCAPE,	REG_SHELL_ESCAPED,
44*b30d1939SAndy Fiddaman 	FNM_PATHNAME,	REG_SHELL_PATH,
45*b30d1939SAndy Fiddaman 	FNM_PERIOD,	REG_SHELL_DOT,
46*b30d1939SAndy Fiddaman };
47*b30d1939SAndy Fiddaman 
48*b30d1939SAndy Fiddaman #if defined(__EXPORT__)
49*b30d1939SAndy Fiddaman #define extern	__EXPORT__
50*b30d1939SAndy Fiddaman #endif
51*b30d1939SAndy Fiddaman 
52*b30d1939SAndy Fiddaman extern int
fnmatch(const char * pattern,const char * subject,register int flags)53*b30d1939SAndy Fiddaman fnmatch(const char* pattern, const char* subject, register int flags)
54*b30d1939SAndy Fiddaman {
55*b30d1939SAndy Fiddaman 	register int		reflags = REG_SHELL|REG_LEFT;
56*b30d1939SAndy Fiddaman 	register const Map_t*	mp;
57*b30d1939SAndy Fiddaman 	regex_t			re;
58*b30d1939SAndy Fiddaman 	regmatch_t		match;
59*b30d1939SAndy Fiddaman 
60*b30d1939SAndy Fiddaman 	for (mp = map; mp < &map[elementsof(map)]; mp++)
61*b30d1939SAndy Fiddaman 		if (flags & mp->fnm)
62*b30d1939SAndy Fiddaman 			reflags |= mp->reg;
63*b30d1939SAndy Fiddaman 	if (flags & FNM_LEADING_DIR)
64*b30d1939SAndy Fiddaman 	{
65*b30d1939SAndy Fiddaman 		if (!(reflags = regcomp(&re, pattern, reflags)))
66*b30d1939SAndy Fiddaman 		{
67*b30d1939SAndy Fiddaman 			reflags = regexec(&re, subject, 1, &match, 0);
68*b30d1939SAndy Fiddaman 			regfree(&re);
69*b30d1939SAndy Fiddaman 			if (!reflags && (reflags = subject[match.rm_eo]))
70*b30d1939SAndy Fiddaman 				reflags = reflags == '/' ? 0 : FNM_NOMATCH;
71*b30d1939SAndy Fiddaman 		}
72*b30d1939SAndy Fiddaman 	}
73*b30d1939SAndy Fiddaman 	else if (!(reflags = regcomp(&re, pattern, reflags|REG_RIGHT)))
74*b30d1939SAndy Fiddaman 	{
75*b30d1939SAndy Fiddaman 		reflags = regexec(&re, subject, 0, NiL, 0);
76*b30d1939SAndy Fiddaman 		regfree(&re);
77*b30d1939SAndy Fiddaman 	}
78*b30d1939SAndy Fiddaman 	return reflags;
79*b30d1939SAndy Fiddaman }
80