| 1 | /* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc. |
| 2 | |
| 3 | NOTE: The canonical source of this file is maintained with the GNU C Library. |
| 4 | Bugs can be reported to bug-glibc@prep.ai.mit.edu. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify it |
| 7 | under the terms of the GNU General Public License as published by the |
| 8 | Free Software Foundation; either version 2, or (at your option) any |
| 9 | later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, 59 Temple Place - Suite 330, |
| 19 | Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | #ifdef HAVE_CONFIG_H |
| 22 | #if defined (CONFIG_BROKETS) |
| 23 | /* We use <config.h> instead of "config.h" so that a compilation |
| 24 | using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h |
| 25 | (which it would do because it found this file in $srcdir). */ |
| 26 | #include <config.h> |
| 27 | #else |
| 28 | #include "config.h" |
| 29 | #endif |
| 30 | #endif |
| 31 | |
| 32 | |
| 33 | #ifndef _GNU_SOURCE |
| 34 | #define _GNU_SOURCE |
| 35 | #endif |
| 36 | |
| 37 | /* This code to undef const added in libiberty. */ |
| 38 | #ifndef __STDC__ |
| 39 | /* This is a separate conditional since some stdc systems |
| 40 | reject `defined (const)'. */ |
| 41 | #ifndef const |
| 42 | #define const |
| 43 | #endif |
| 44 | #endif |
| 45 | |
| 46 | #include <errno.h> |
| 47 | #include <fnmatch.h> |
| 48 | #include <ctype.h> |
| 49 | |
| 50 | |
| 51 | /* Comment out all this code if we are using the GNU C Library, and are not |
| 52 | actually compiling the library itself. This code is part of the GNU C |
| 53 | Library, but also included in many other GNU distributions. Compiling |
| 54 | and linking in this code is a waste when using the GNU C library |
| 55 | (especially if it is a shared library). Rather than having every GNU |
| 56 | program understand `configure --with-gnu-libc' and omit the object files, |
| 57 | it is simpler to just do this in the source for each such file. */ |
| 58 | |
| 59 | #if defined (_LIBC) || !defined (__GNU_LIBRARY__) |
| 60 | |
| 61 | |
| 62 | #if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS) |
| 63 | extern int errno; |
| 64 | #endif |
| 65 | |
| 66 | /* Match STRING against the filename pattern PATTERN, returning zero if |
| 67 | it matches, nonzero if not. */ |
| 68 | int |
| 69 | fnmatch (pattern, string, flags) |
| 70 | const char *pattern; |
| 71 | const char *string; |
| 72 | int flags; |
| 73 | { |
| 74 | register const char *p = pattern, *n = string; |
| 75 | register unsigned char c; |
| 76 | |
| 77 | /* Note that this evalutes C many times. */ |
| 78 | #define FOLD(c) ((flags & FNM_CASEFOLD) && isupper (c) ? tolower (c) : (c)) |
| 79 | |
| 80 | while ((c = *p++) != '\0') |
| 81 | { |
| 82 | c = FOLD (c); |
| 83 | |
| 84 | switch (c) |
| 85 | { |
| 86 | case '?': |
| 87 | if (*n == '\0') |
| 88 | return FNM_NOMATCH; |
| 89 | else if ((flags & FNM_FILE_NAME) && *n == '/') |
| 90 | return FNM_NOMATCH; |
| 91 | else if ((flags & FNM_PERIOD) && *n == '.' && |
| 92 | (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) |
| 93 | return FNM_NOMATCH; |
| 94 | break; |
| 95 | |
| 96 | case '\\': |
| 97 | if (!(flags & FNM_NOESCAPE)) |
| 98 | { |
| 99 | c = *p++; |
| 100 | c = FOLD (c); |
| 101 | } |
| 102 | if (FOLD ((unsigned char)*n) != c) |
| 103 | return FNM_NOMATCH; |
| 104 | break; |
| 105 | |
| 106 | case '*': |
| 107 | if ((flags & FNM_PERIOD) && *n == '.' && |
| 108 | (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) |
| 109 | return FNM_NOMATCH; |
| 110 | |
| 111 | for (c = *p++; c == '?' || c == '*'; c = *p++, ++n) |
| 112 | if (((flags & FNM_FILE_NAME) && *n == '/') || |
| 113 | (c == '?' && *n == '\0')) |
| 114 | return FNM_NOMATCH; |
| 115 | |
| 116 | if (c == '\0') |
| 117 | return 0; |
| 118 | |
| 119 | { |
| 120 | unsigned char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c; |
| 121 | c1 = FOLD (c1); |
| 122 | for (--p; *n != '\0'; ++n) |
| 123 | if ((c == '[' || FOLD ((unsigned char)*n) == c1) && |
| 124 | fnmatch (p, n, flags & ~FNM_PERIOD) == 0) |
| 125 | return 0; |
| 126 | return FNM_NOMATCH; |
| 127 | } |
| 128 | |
| 129 | case '[': |
| 130 | { |
| 131 | /* Nonzero if the sense of the character class is inverted. */ |
| 132 | register int not; |
| 133 | |
| 134 | if (*n == '\0') |
| 135 | return FNM_NOMATCH; |
| 136 | |
| 137 | if ((flags & FNM_PERIOD) && *n == '.' && |
| 138 | (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) |
| 139 | return FNM_NOMATCH; |
| 140 | |
| 141 | not = (*p == '!' || *p == '^'); |
| 142 | if (not) |
| 143 | ++p; |
| 144 | |
| 145 | c = *p++; |
| 146 | for (;;) |
| 147 | { |
| 148 | register unsigned char cstart = c, cend = c; |
| 149 | |
| 150 | if (!(flags & FNM_NOESCAPE) && c == '\\') |
| 151 | cstart = cend = *p++; |
| 152 | |
| 153 | cstart = cend = FOLD (cstart); |
| 154 | |
| 155 | if (c == '\0') |
| 156 | /* [ (unterminated) loses. */ |
| 157 | return FNM_NOMATCH; |
| 158 | |
| 159 | c = *p++; |
| 160 | c = FOLD (c); |
| 161 | |
| 162 | if ((flags & FNM_FILE_NAME) && c == '/') |
| 163 | /* [/] can never match. */ |
| 164 | return FNM_NOMATCH; |
| 165 | |
| 166 | if (c == '-' && *p != ']') |
| 167 | { |
| 168 | cend = *p++; |
| 169 | if (!(flags & FNM_NOESCAPE) && cend == '\\') |
| 170 | cend = *p++; |
| 171 | if (cend == '\0') |
| 172 | return FNM_NOMATCH; |
| 173 | cend = FOLD (cend); |
| 174 | |
| 175 | c = *p++; |
| 176 | } |
| 177 | |
| 178 | if (FOLD ((unsigned char)*n) >= cstart |
| 179 | && FOLD ((unsigned char)*n) <= cend) |
| 180 | goto matched; |
| 181 | |
| 182 | if (c == ']') |
| 183 | break; |
| 184 | } |
| 185 | if (!not) |
| 186 | return FNM_NOMATCH; |
| 187 | break; |
| 188 | |
| 189 | matched:; |
| 190 | /* Skip the rest of the [...] that already matched. */ |
| 191 | while (c != ']') |
| 192 | { |
| 193 | if (c == '\0') |
| 194 | /* [... (unterminated) loses. */ |
| 195 | return FNM_NOMATCH; |
| 196 | |
| 197 | c = *p++; |
| 198 | if (!(flags & FNM_NOESCAPE) && c == '\\') |
| 199 | /* XXX 1003.2d11 is unclear if this is right. */ |
| 200 | ++p; |
| 201 | } |
| 202 | if (not) |
| 203 | return FNM_NOMATCH; |
| 204 | } |
| 205 | break; |
| 206 | |
| 207 | default: |
| 208 | if (c != FOLD ((unsigned char)*n)) |
| 209 | return FNM_NOMATCH; |
| 210 | } |
| 211 | |
| 212 | ++n; |
| 213 | } |
| 214 | |
| 215 | if (*n == '\0') |
| 216 | return 0; |
| 217 | |
| 218 | if ((flags & FNM_LEADING_DIR) && *n == '/') |
| 219 | /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */ |
| 220 | return 0; |
| 221 | |
| 222 | return FNM_NOMATCH; |
| 223 | } |
| 224 | |
| 225 | #endif /* _LIBC or not __GNU_LIBRARY__. */ |