mirror of
https://github.com/sheumann/hush.git
synced 2024-08-16 09:29:16 +00:00
142 lines
3.0 KiB
C
142 lines
3.0 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Utility routines.
|
|
*
|
|
* Copyright (C) tons of folks. Tracking down who wrote what
|
|
* isn't something I'm going to worry about... If you wrote something
|
|
* here, please feel free to acknowledge your work.
|
|
*
|
|
* 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 of the License, 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
|
|
*
|
|
* Based in part on code from sash, Copyright (c) 1999 by David I. Bell
|
|
* Permission has been granted to redistribute this code under the GPL.
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include "libbb.h"
|
|
|
|
|
|
/*
|
|
* Routine to see if a text string is matched by a wildcard pattern.
|
|
* Returns TRUE if the text is matched, or FALSE if it is not matched
|
|
* or if the pattern is invalid.
|
|
* * matches zero or more characters
|
|
* ? matches a single character
|
|
* [abc] matches 'a', 'b' or 'c'
|
|
* \c quotes character c
|
|
* Adapted from code written by Ingo Wilken, and
|
|
* then taken from sash, Copyright (c) 1999 by David I. Bell
|
|
* Permission is granted to use, distribute, or modify this source,
|
|
* provided that this copyright notice remains intact.
|
|
* Permission to distribute this code under the GPL has been granted.
|
|
*/
|
|
extern int check_wildcard_match(const char *text, const char *pattern)
|
|
{
|
|
const char *retryPat;
|
|
const char *retryText;
|
|
int ch;
|
|
int found;
|
|
int len;
|
|
|
|
retryPat = NULL;
|
|
retryText = NULL;
|
|
|
|
while (*text || *pattern) {
|
|
ch = *pattern++;
|
|
|
|
switch (ch) {
|
|
case '*':
|
|
retryPat = pattern;
|
|
retryText = text;
|
|
break;
|
|
|
|
case '[':
|
|
found = FALSE;
|
|
|
|
while ((ch = *pattern++) != ']') {
|
|
if (ch == '\\')
|
|
ch = *pattern++;
|
|
|
|
if (ch == '\0')
|
|
return FALSE;
|
|
|
|
if (*text == ch)
|
|
found = TRUE;
|
|
}
|
|
len=strlen(text);
|
|
if (found == FALSE && len!=0) {
|
|
return FALSE;
|
|
}
|
|
if (found == TRUE) {
|
|
if (strlen(pattern)==0 && len==1) {
|
|
return TRUE;
|
|
}
|
|
if (len!=0) {
|
|
text++;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/* fall into next case */
|
|
|
|
case '?':
|
|
if (*text++ == '\0')
|
|
return FALSE;
|
|
|
|
break;
|
|
|
|
case '\\':
|
|
ch = *pattern++;
|
|
|
|
if (ch == '\0')
|
|
return FALSE;
|
|
|
|
/* fall into next case */
|
|
|
|
default:
|
|
if (*text == ch) {
|
|
if (*text)
|
|
text++;
|
|
break;
|
|
}
|
|
|
|
if (*text) {
|
|
pattern = retryPat;
|
|
text = ++retryText;
|
|
break;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
if (pattern == NULL)
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/* END CODE */
|
|
/*
|
|
Local Variables:
|
|
c-file-style: "linux"
|
|
c-basic-offset: 4
|
|
tab-width: 4
|
|
End:
|
|
*/
|