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- /************************************************************************
- * IRC - Internet Relay Chat, common/match.c
- * Copyright (C) 1990 Jarkko Oikarinen
- *
- * 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 1, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- #ifndef lint
- static char sccsid[] = "%W% %G% (C) 1988 University of Oulu, \
- Computing Center and Jarkko Oikarinen";
- #endif
-
- #include "struct.h"
- #include "common.h"
- #include "sys.h"
-
-
- static int calls = 0;
- #define MAX_CALLS 200
- /*
- ** Compare if a given string (name) matches the given
- ** mask (which can contain wild cards: '*' - match any
- ** number of chars, '?' - match any single character.
- **
- ** return 0, if match
- ** 1, if no match
- */
-
- /*
- ** _match()
- ** Iterative matching function, rather than recursive.
- ** Written by Douglas A Lewis (dalewis@acsu.buffalo.edu)
- */
-
- static int _match(mask, name)
- char *mask, *name;
- {
- Reg1 u_char *m = (u_char *)mask, *n = (u_char *)name;
- char *ma = mask, *na = name;
- int wild = 0, q = 0;
-
- while (1)
- {
- if (calls++ > MAX_CALLS)
- return 1;
- if (*m == '*')
- {
- while (*m == '*')
- m++;
- wild = 1;
- ma = (char *)m;
- na = (char *)n;
- }
-
- if (!*m)
- {
- if (!*n)
- return 0;
- for (m--; (m > (u_char *)mask) && (*m == '?'); m--)
- ;
- if ((*m == '*') && (m > (u_char *)mask) &&
- (m[-1] != '\\'))
- return 0;
- if (!wild)
- return 1;
- m = (u_char *)ma;
- n = (u_char *)++na;
- }
- else if (!*n)
- {
- while(*m == '*')
- m++;
- return (*m != 0);
- }
- if ((*m == '\\') && ((m[1] == '*') || (m[1] == '?')))
- {
- m++;
- q = 1;
- }
- else
- q = 0;
-
- if ((tolower(*m) != tolower(*n)) && ((*m != '?') || q))
- {
- if (!wild)
- return 1;
- m = (u_char *)ma;
- n = (u_char *)++na;
- }
- else
- {
- if (*m)
- m++;
- if (*n)
- n++;
- }
- }
- }
-
- /*
- * External interfaces to the above matching routine.
- */
- int match(ma, na)
- char *ma, *na;
- {
- calls = 0;
- return _match(ma, na);
- }
-
- int matches(ma, na)
- char *ma,*na;
- {
- int r;
-
- calls = 0;
- return _match(ma, na);
- }
-
-
- /*
- ** collapse a pattern string into minimal components.
- ** This particular version is "in place", so that it changes the pattern
- ** which is to be reduced to a "minimal" size.
- */
- char *collapse(pattern)
- char *pattern;
- {
- Reg1 char *s = pattern, *s1, *t;
-
- if (BadPtr(pattern))
- return pattern;
- /*
- * Collapse all \** into \*, \*[?]+\** into \*[?]+
- */
- for (; *s; s++)
- if (*s == '\\')
- if (!*(s + 1))
- break;
- else
- s++;
- else if (*s == '*')
- {
- if (*(t = s1 = s + 1) == '*')
- while (*t == '*')
- t++;
- else if (*t == '?')
- for (t++, s1++; *t == '*' || *t == '?'; t++)
- if (*t == '?')
- *s1++ = *t;
- while ((*s1++ = *t++))
- ;
- }
- return pattern;
- }
-
-
- /*
- ** Case insensitive comparison of two NULL terminated strings.
- **
- ** returns 0, if s1 equal to s2
- ** <0, if s1 lexicographically less than s2
- ** >0, if s1 lexicographically greater than s2
- */
- int mycmp(s1, s2)
- char *s1;
- char *s2;
- {
- Reg1 unsigned char *str1 = (unsigned char *)s1;
- Reg2 unsigned char *str2 = (unsigned char *)s2;
- Reg3 int res;
-
- while ((res = toupper(*str1) - toupper(*str2)) == 0)
- {
- if (*str1 == '\0')
- return 0;
- str1++;
- str2++;
- }
- return (res);
- }
-
-
- int myncmp(str1, str2, n)
- char *str1;
- char *str2;
- int n;
- {
- Reg1 unsigned char *s1 = (unsigned char *)str1;
- Reg2 unsigned char *s2 = (unsigned char *)str2;
- Reg3 int res;
-
- while ((res = toupper(*s1) - toupper(*s2)) == 0)
- {
- s1++; s2++; n--;
- if (n == 0 || (*s1 == '\0' && *s2 == '\0'))
- return 0;
- }
- return (res);
- }
-
-
- unsigned char tolowertab[] =
- { 0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa,
- 0xb, 0xc, 0xd, 0xe, 0xf, 0x10, 0x11, 0x12, 0x13, 0x14,
- 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d,
- 0x1e, 0x1f,
- ' ', '!', '"', '#', '$', '%', '&', 0x27, '(', ')',
- '*', '+', ',', '-', '.', '/',
- '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
- ':', ';', '<', '=', '>', '?',
- '@', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
- 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's',
- 't', 'u', 'v', 'w', 'x', 'y', 'z', '{', '|', '}', '~',
- '_',
- '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
- 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's',
- 't', 'u', 'v', 'w', 'x', 'y', 'z', '{', '|', '}', '~',
- 0x7f,
- 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
- 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
- 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99,
- 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
- 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9,
- 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
- 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9,
- 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
- 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9,
- 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
- 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9,
- 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
- 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,
- 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
- 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9,
- 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff };
-
- unsigned char touppertab[] =
- { 0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa,
- 0xb, 0xc, 0xd, 0xe, 0xf, 0x10, 0x11, 0x12, 0x13, 0x14,
- 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d,
- 0x1e, 0x1f,
- ' ', '!', '"', '#', '$', '%', '&', 0x27, '(', ')',
- '*', '+', ',', '-', '.', '/',
- '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
- ':', ';', '<', '=', '>', '?',
- '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I',
- 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S',
- 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '[', '\\', ']', '^',
- 0x5f,
- '`', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I',
- 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S',
- 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '[', '\\', ']', '^',
- 0x7f,
- 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
- 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
- 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99,
- 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
- 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9,
- 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
- 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9,
- 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
- 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9,
- 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
- 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9,
- 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
- 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9,
- 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
- 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9,
- 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff };
-
- unsigned char char_atribs[] = {
- /* 0-7 */ CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL,
- /* 8-12 */ CNTRL, CNTRL|SPACE, CNTRL|SPACE, CNTRL|SPACE, CNTRL|SPACE,
- /* 13-15 */ CNTRL|SPACE, CNTRL, CNTRL,
- /* 16-23 */ CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL,
- /* 24-31 */ CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL, CNTRL,
- /* space */ PRINT|SPACE,
- /* !"#$%&'( */ PRINT, PRINT, PRINT, PRINT, PRINT, PRINT, PRINT, PRINT,
- /* )*+,-./ */ PRINT, PRINT, PRINT, PRINT, PRINT, PRINT, PRINT,
- /* 0123 */ PRINT|DIGIT, PRINT|DIGIT, PRINT|DIGIT, PRINT|DIGIT,
- /* 4567 */ PRINT|DIGIT, PRINT|DIGIT, PRINT|DIGIT, PRINT|DIGIT,
- /* 89:; */ PRINT|DIGIT, PRINT|DIGIT, PRINT, PRINT,
- /* <=>? */ PRINT, PRINT, PRINT, PRINT,
- /* @ */ PRINT,
- /* ABC */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* DEF */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* GHI */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* JKL */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* MNO */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* PQR */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* STU */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* VWX */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* YZ[ */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* \]^ */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* _ */ PRINT,
- /* abc */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* def */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* ghi */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* jkl */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* mno */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* pqr */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* stu */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* vwx */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* yz{ */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* \}~ */ PRINT|ALPHA, PRINT|ALPHA, PRINT|ALPHA,
- /* del */ 0,
- /* 80-8f */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* 90-9f */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* a0-af */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* b0-bf */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* c0-cf */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* d0-df */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* e0-ef */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* f0-ff */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- };
-
-