| 1 | #include "../rsync.h" |
| 2 | #ifndef HAVE_FNMATCH |
| 3 | |
| 4 | /* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc. |
| 5 | |
| 6 | NOTE: The canonical source of this file is maintained with the GNU C Library. |
| 7 | Bugs can be reported to bug-glibc@prep.ai.mit.edu. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify it |
| 10 | under the terms of the GNU General Public License as published by the |
| 11 | Free Software Foundation; either version 2, or (at your option) any |
| 12 | later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program; if not, write to the Free Software |
| 21 | Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 22 | |
| 23 | #if defined (STDC_HEADERS) || !defined (isascii) |
| 24 | #define ISASCII(c) 1 |
| 25 | #else |
| 26 | #define ISASCII(c) isascii(c) |
| 27 | #endif |
| 28 | |
| 29 | #define ISUPPER(c) (ISASCII (c) && isupper (c)) |
| 30 | |
| 31 | |
| 32 | /* Comment out all this code if we are using the GNU C Library, and are not |
| 33 | actually compiling the library itself. This code is part of the GNU C |
| 34 | Library, but also included in many other GNU distributions. Compiling |
| 35 | and linking in this code is a waste when using the GNU C library |
| 36 | (especially if it is a shared library). Rather than having every GNU |
| 37 | program understand `configure --with-gnu-libc' and omit the object files, |
| 38 | it is simpler to just do this in the source for each such file. */ |
| 39 | |
| 40 | #if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS) |
| 41 | extern int errno; |
| 42 | #endif |
| 43 | |
| 44 | /* Match STRING against the filename pattern PATTERN, returning zero if |
| 45 | it matches, nonzero if not. */ |
| 46 | int |
| 47 | fnmatch (pattern, string, flags) |
| 48 | const char *pattern; |
| 49 | const char *string; |
| 50 | int flags; |
| 51 | { |
| 52 | register const char *p = pattern, *n = string; |
| 53 | register char c; |
| 54 | |
| 55 | /* Note that this evalutes C many times. */ |
| 56 | #define FOLD(c) ((flags & FNM_CASEFOLD) && ISUPPER (c) ? tolower (c) : (c)) |
| 57 | |
| 58 | while ((c = *p++) != '\0') |
| 59 | { |
| 60 | c = FOLD (c); |
| 61 | |
| 62 | switch (c) |
| 63 | { |
| 64 | case '?': |
| 65 | if (*n == '\0') |
| 66 | return FNM_NOMATCH; |
| 67 | else if ((flags & FNM_FILE_NAME) && *n == '/') |
| 68 | return FNM_NOMATCH; |
| 69 | else if ((flags & FNM_PERIOD) && *n == '.' && |
| 70 | (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) |
| 71 | return FNM_NOMATCH; |
| 72 | break; |
| 73 | |
| 74 | case '\\': |
| 75 | if (!(flags & FNM_NOESCAPE)) |
| 76 | { |
| 77 | c = *p++; |
| 78 | c = FOLD (c); |
| 79 | } |
| 80 | if (FOLD (*n) != c) |
| 81 | return FNM_NOMATCH; |
| 82 | break; |
| 83 | |
| 84 | case '*': |
| 85 | if ((flags & FNM_PERIOD) && *n == '.' && |
| 86 | (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) |
| 87 | return FNM_NOMATCH; |
| 88 | |
| 89 | for (c = *p++; c == '?' || c == '*'; c = *p++, ++n) |
| 90 | if (((flags & FNM_FILE_NAME) && *n == '/') || |
| 91 | (c == '?' && *n == '\0')) |
| 92 | return FNM_NOMATCH; |
| 93 | |
| 94 | if (c == '\0') |
| 95 | return 0; |
| 96 | |
| 97 | { |
| 98 | char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c; |
| 99 | c1 = FOLD (c1); |
| 100 | for (--p; *n != '\0'; ++n) |
| 101 | if ((c == '[' || FOLD (*n) == c1) && |
| 102 | fnmatch (p, n, flags & ~FNM_PERIOD) == 0) |
| 103 | return 0; |
| 104 | return FNM_NOMATCH; |
| 105 | } |
| 106 | |
| 107 | case '[': |
| 108 | { |
| 109 | /* Nonzero if the sense of the character class is inverted. */ |
| 110 | register int not; |
| 111 | |
| 112 | if (*n == '\0') |
| 113 | return FNM_NOMATCH; |
| 114 | |
| 115 | if ((flags & FNM_PERIOD) && *n == '.' && |
| 116 | (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) |
| 117 | return FNM_NOMATCH; |
| 118 | |
| 119 | not = (*p == '!' || *p == '^'); |
| 120 | if (not) |
| 121 | ++p; |
| 122 | |
| 123 | c = *p++; |
| 124 | for (;;) |
| 125 | { |
| 126 | register char cstart = c, cend = c; |
| 127 | |
| 128 | if (!(flags & FNM_NOESCAPE) && c == '\\') |
| 129 | cstart = cend = *p++; |
| 130 | |
| 131 | cstart = cend = FOLD (cstart); |
| 132 | |
| 133 | if (c == '\0') |
| 134 | /* [ (unterminated) loses. */ |
| 135 | return FNM_NOMATCH; |
| 136 | |
| 137 | c = *p++; |
| 138 | c = FOLD (c); |
| 139 | |
| 140 | if ((flags & FNM_FILE_NAME) && c == '/') |
| 141 | /* [/] can never match. */ |
| 142 | return FNM_NOMATCH; |
| 143 | |
| 144 | if (c == '-' && *p != ']') |
| 145 | { |
| 146 | cend = *p++; |
| 147 | if (!(flags & FNM_NOESCAPE) && cend == '\\') |
| 148 | cend = *p++; |
| 149 | if (cend == '\0') |
| 150 | return FNM_NOMATCH; |
| 151 | cend = FOLD (cend); |
| 152 | |
| 153 | c = *p++; |
| 154 | } |
| 155 | |
| 156 | if (FOLD (*n) >= cstart && FOLD (*n) <= cend) |
| 157 | goto matched; |
| 158 | |
| 159 | if (c == ']') |
| 160 | break; |
| 161 | } |
| 162 | if (!not) |
| 163 | return FNM_NOMATCH; |
| 164 | break; |
| 165 | |
| 166 | matched:; |
| 167 | /* Skip the rest of the [...] that already matched. */ |
| 168 | while (c != ']') |
| 169 | { |
| 170 | if (c == '\0') |
| 171 | /* [... (unterminated) loses. */ |
| 172 | return FNM_NOMATCH; |
| 173 | |
| 174 | c = *p++; |
| 175 | if (!(flags & FNM_NOESCAPE) && c == '\\') |
| 176 | /* XXX 1003.2d11 is unclear if this is right. */ |
| 177 | ++p; |
| 178 | } |
| 179 | if (not) |
| 180 | return FNM_NOMATCH; |
| 181 | } |
| 182 | break; |
| 183 | |
| 184 | default: |
| 185 | if (c != FOLD (*n)) |
| 186 | return FNM_NOMATCH; |
| 187 | } |
| 188 | |
| 189 | ++n; |
| 190 | } |
| 191 | |
| 192 | if (*n == '\0') |
| 193 | return 0; |
| 194 | |
| 195 | if ((flags & FNM_LEADING_DIR) && *n == '/') |
| 196 | /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */ |
| 197 | return 0; |
| 198 | |
| 199 | return FNM_NOMATCH; |
| 200 | } |
| 201 | |
| 202 | #else /* HAVE_FNMATCH */ |
| 203 | void fnmatch_dummy(void) {} |
| 204 | #endif |