/* $NetBSD: fnmatch.c,v 1.1.1.1 2016/01/10 21:36:18 christos Exp $ */ /* Copyright 1991, 1992, 1993, 1996, 1997, 2000 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #if HAVE_CONFIG_H # include #endif /* Enable GNU extensions in fnmatch.h. */ #ifndef _GNU_SOURCE # define _GNU_SOURCE 1 #endif #include #include #include #if defined STDC_HEADERS || !defined isascii # define IN_CTYPE_DOMAIN(c) 1 #else # define IN_CTYPE_DOMAIN(c) isascii (c) #endif #define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (c)) #ifndef errno extern int errno; #endif /* Match STRING against the filename pattern PATTERN, returning zero if it matches, nonzero if not. */ int fnmatch (const char *pattern, const char *string, int flags) { register const char *p = pattern, *n = string; register char c; /* Note that this evaluates C many times. */ #define FOLD(c) ((flags & FNM_CASEFOLD) && ISUPPER ((unsigned char) (c)) \ ? tolower ((unsigned char) (c)) \ : (c)) while ((c = *p++) != '\0') { c = FOLD (c); switch (c) { case '?': if (*n == '\0') return FNM_NOMATCH; else if ((flags & FNM_FILE_NAME) && *n == '/') return FNM_NOMATCH; else if ((flags & FNM_PERIOD) && *n == '.' && (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) return FNM_NOMATCH; break; case '\\': if (!(flags & FNM_NOESCAPE)) { c = *p++; if (c == '\0') /* Trailing \ loses. */ return FNM_NOMATCH; c = FOLD (c); } if (FOLD (*n) != c) return FNM_NOMATCH; break; case '*': if ((flags & FNM_PERIOD) && *n == '.' && (n == string || ((flags & FNM_FILE_NAME) && n[-1] == '/'))) return FNM_NOMATCH; for (c = *p++; c == '?' || c == '*'; c = *p++) { if (c == '?') { /* A ? needs to match one character. */ if (*n == '\0' || (*n == '/' && (flags & FNM_FILE_NAME))) /* There isn't another character; no match. */ return FNM_NOMATCH; else /* One character of the string is consumed in matching this ? wildcard, so *??? won't match if there are less than three characters. */ ++n; } } if (c == '\0') { if ((flags & (FNM_FILE_NAME | FNM_LEADING_DIR)) == FNM_FILE_NAME) for (; *n != '\0'; n++) if (*n == '/') return FNM_NOMATCH; return 0; } { char c1 = (!(flags & FNM_NOESCAPE) && c == '\\') ? *p : c; c1 = FOLD (c1); for (--p; *n != '\0'; ++n) if ((c == '[' || FOLD (*n) == c1) && fnmatch (p, n, flags & ~FNM_PERIOD) == 0) return 0; else if (*n == '/' && (flags & FNM_FILE_NAME)) break; 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_FILE_NAME) && n[-1] == '/'))) return FNM_NOMATCH; not = (*p == '!' || *p == '^'); if (not) ++p; c = *p++; for (;;) { register char cstart = c, cend = c; if (!(flags & FNM_NOESCAPE) && c == '\\') { if (*p == '\0') return FNM_NOMATCH; cstart = cend = *p++; } cstart = cend = FOLD (cstart); if (c == '\0') /* [ (unterminated) loses. */ return FNM_NOMATCH; c = *p++; c = FOLD (c); if ((flags & FNM_FILE_NAME) && 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; cend = FOLD (cend); c = *p++; } if (FOLD (*n) >= cstart && FOLD (*n) <= cend) goto matched; if (c == ']') break; } if (!not) return FNM_NOMATCH; 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 == '\\') { if (*p == '\0') return FNM_NOMATCH; /* XXX 1003.2d11 is unclear if this is right. */ ++p; } } if (not) return FNM_NOMATCH; } break; default: if (c != FOLD (*n)) return FNM_NOMATCH; } ++n; } if (*n == '\0') return 0; if ((flags & FNM_LEADING_DIR) && *n == '/') /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */ return 0; return FNM_NOMATCH; #undef FOLD }