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-rw-r--r--fnmatch.c189
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diff --git a/fnmatch.c b/fnmatch.c
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+/* Copyright (C) 1991 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <errno.h>
+#include "fnmatch.h"
+
+#if !defined (__GNU_LIBRARY__) && !defined (STDC_HEADERS)
+# if !defined (errno)
+extern int errno;
+# endif /* !errno */
+#endif
+
+/* Match STRING against the filename pattern PATTERN, returning zero if
+ it matches, FNM_NOMATCH if not. */
+int
+fnmatch (pattern, string, flags)
+ char *pattern;
+ char *string;
+ int flags;
+{
+ register char *p = pattern, *n = string;
+ register char c;
+
+ if ((flags & ~__FNM_FLAGS) != 0)
+ {
+ errno = EINVAL;
+ return (-1);
+ }
+
+ while ((c = *p++) != '\0')
+ {
+ switch (c)
+ {
+ case '?':
+ if (*n == '\0')
+ return (FNM_NOMATCH);
+ else if ((flags & FNM_PATHNAME) && *n == '/')
+ return (FNM_NOMATCH);
+ else if ((flags & FNM_PERIOD) && *n == '.' &&
+ (n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
+ return (FNM_NOMATCH);
+ break;
+
+ case '\\':
+ if (!(flags & FNM_NOESCAPE))
+ c = *p++;
+ if (*n != c)
+ return (FNM_NOMATCH);
+ break;
+
+ case '*':
+ if ((flags & FNM_PERIOD) && *n == '.' &&
+ (n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
+ return (FNM_NOMATCH);
+
+ for (c = *p++; c == '?' || c == '*'; c = *p++, ++n)
+ if (((flags & FNM_PATHNAME) && *n == '/') ||
+ (c == '?' && *n == '\0'))
+ return (FNM_NOMATCH);
+
+ if (c == '\0')
+ return (0);
+
+ {
+ char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c;
+ for (--p; *n != '\0'; ++n)
+ if ((c == '[' || *n == c1) &&
+ fnmatch (p, n, flags & ~FNM_PERIOD) == 0)
+ return (0);
+ return (FNM_NOMATCH);
+ }
+
+ case '[':
+ {
+ /* Nonzero if the sense of the character class is inverted. */
+ register int not;
+
+ if (*n == '\0')
+ return (FNM_NOMATCH);
+
+ if ((flags & FNM_PERIOD) && *n == '.' &&
+ (n == string || ((flags & FNM_PATHNAME) && n[-1] == '/')))
+ return (FNM_NOMATCH);
+
+ /* Make sure there is a closing `]'. If there isn't, the `['
+ is just a character to be matched. */
+ {
+ register char *np;
+
+ for (np = p; np && *np && *np != ']'; np++);
+
+ if (np && !*np)
+ {
+ if (*n != '[')
+ return (FNM_NOMATCH);
+ goto next_char;
+ }
+ }
+
+ not = (*p == '!' || *p == '^');
+ if (not)
+ ++p;
+
+ c = *p++;
+ for (;;)
+ {
+ register char cstart = c, cend = c;
+
+ if (!(flags & FNM_NOESCAPE) && c == '\\')
+ cstart = cend = *p++;
+
+ if (c == '\0')
+ /* [ (unterminated) loses. */
+ return (FNM_NOMATCH);
+
+ c = *p++;
+
+ if ((flags & FNM_PATHNAME) && c == '/')
+ /* [/] can never match. */
+ return (FNM_NOMATCH);
+
+ if (c == '-' && *p != ']')
+ {
+ cend = *p++;
+ if (!(flags & FNM_NOESCAPE) && cend == '\\')
+ cend = *p++;
+ if (cend == '\0')
+ return (FNM_NOMATCH);
+ c = *p++;
+ }
+
+ if (*n >= cstart && *n <= cend)
+ goto matched;
+
+ if (c == ']')
+ break;
+ }
+ if (!not)
+ return (FNM_NOMATCH);
+
+ next_char:
+ break;
+
+ matched:
+ /* Skip the rest of the [...] that already matched. */
+ while (c != ']')
+ {
+ if (c == '\0')
+ /* [... (unterminated) loses. */
+ return (FNM_NOMATCH);
+
+ c = *p++;
+ if (!(flags & FNM_NOESCAPE) && c == '\\')
+ /* 1003.2d11 is unclear if this is right. %%% */
+ ++p;
+ }
+ if (not)
+ return (FNM_NOMATCH);
+ }
+ break;
+
+ default:
+ if (c != *n)
+ return (FNM_NOMATCH);
+ }
+
+ ++n;
+ }
+
+ if (*n == '\0')
+ return (0);
+
+ return (FNM_NOMATCH);
+}