--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ Name mapping code
+ Copyright (C) Jeremy Allison 1998
+ Copyright (C) Andrew Tridgell 2002
+
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+
+/* ************************************************************************** **
+ * Used only in do_fwd_mangled_map(), below.
+ * ************************************************************************** **
+ */
+static char *map_filename( char *s, /* This is null terminated */
+ const char *pattern, /* This isn't. */
+ int len ) /* This is the length of pattern. */
+ {
+ static pstring matching_bit; /* The bit of the string which matches */
+ /* a * in pattern if indeed there is a * */
+ char *sp; /* Pointer into s. */
+ char *pp; /* Pointer into p. */
+ char *match_start; /* Where the matching bit starts. */
+ pstring pat;
+
+ StrnCpy( pat, pattern, len ); /* Get pattern into a proper string! */
+ pstrcpy( matching_bit, "" ); /* Match but no star gets this. */
+ pp = pat; /* Initialize the pointers. */
+ sp = s;
+
+ if( strequal(s, ".") || strequal(s, ".."))
+ {
+ return NULL; /* Do not map '.' and '..' */
+ }
+
+ if( (len == 1) && (*pattern == '*') )
+ {
+ return NULL; /* Impossible, too ambiguous for */
+ } /* words! */
+
+ while( (*sp) /* Not the end of the string. */
+ && (*pp) /* Not the end of the pattern. */
+ && (*sp == *pp) /* The two match. */
+ && (*pp != '*') ) /* No wildcard. */
+ {
+ sp++; /* Keep looking. */
+ pp++;
+ }
+
+ if( !*sp && !*pp ) /* End of pattern. */
+ return( matching_bit ); /* Simple match. Return empty string. */
+
+ if( *pp == '*' )
+ {
+ pp++; /* Always interrested in the chacter */
+ /* after the '*' */
+ if( !*pp ) /* It is at the end of the pattern. */
+ {
+ StrnCpy( matching_bit, s, sp-s );
+ return( matching_bit );
+ }
+ else
+ {
+ /* The next character in pattern must match a character further */
+ /* along s than sp so look for that character. */
+ match_start = sp;
+ while( (*sp) /* Not the end of s. */
+ && (*sp != *pp) ) /* Not the same */
+ sp++; /* Keep looking. */
+ if( !*sp ) /* Got to the end without a match. */
+ {
+ return( NULL );
+ } /* Still hope for a match. */
+ else
+ {
+ /* Now sp should point to a matching character. */
+ StrnCpy(matching_bit, match_start, sp-match_start);
+ /* Back to needing a stright match again. */
+ while( (*sp) /* Not the end of the string. */
+ && (*pp) /* Not the end of the pattern. */
+ && (*sp == *pp) ) /* The two match. */
+ {
+ sp++; /* Keep looking. */
+ pp++;
+ }
+ if( !*sp && !*pp ) /* Both at end so it matched */
+ return( matching_bit );
+ else
+ return( NULL );
+ }
+ }
+ }
+ return( NULL ); /* No match. */
+ } /* map_filename */
+
+
+/* ************************************************************************** **
+ * MangledMap is a series of name pairs in () separated by spaces.
+ * If s matches the first of the pair then the name given is the
+ * second of the pair. A * means any number of any character and if
+ * present in the second of the pair as well as the first the
+ * matching part of the first string takes the place of the * in the
+ * second.
+ *
+ * I wanted this so that we could have RCS files which can be used
+ * by UNIX and DOS programs. My mapping string is (RCS rcs) which
+ * converts the UNIX RCS file subdirectory to lowercase thus
+ * preventing mangling.
+ *
+ * See 'mangled map' in smb.conf(5).
+ *
+ * ************************************************************************** **
+ */
+static void mangled_map(char *s, const char *MangledMap)
+{
+ const char *start=MangledMap; /* Use this to search for mappings. */
+ const char *end; /* Used to find the end of strings. */
+ char *match_string;
+ pstring new_string; /* Make up the result here. */
+ char *np; /* Points into new_string. */
+
+ DEBUG( 5, ("Mangled Mapping '%s' map '%s'\n", s, MangledMap) );
+ while( *start ) {
+ while( (*start) && (*start != '(') )
+ start++;
+ if( !*start )
+ continue; /* Always check for the end. */
+ start++; /* Skip the ( */
+ end = start; /* Search for the ' ' or a ')' */
+ DEBUG( 5, ("Start of first in pair '%s'\n", start) );
+ while( (*end) && !((*end == ' ') || (*end == ')')) )
+ end++;
+ if( !*end ) {
+ start = end;
+ continue; /* Always check for the end. */
+ }
+ DEBUG( 5, ("End of first in pair '%s'\n", end) );
+ if( (match_string = map_filename( s, start, end-start )) ) {
+ int size_left = sizeof(new_string) - 1;
+ DEBUG( 5, ("Found a match\n") );
+ /* Found a match. */
+ start = end + 1; /* Point to start of what it is to become. */
+ DEBUG( 5, ("Start of second in pair '%s'\n", start) );
+ end = start;
+ np = new_string;
+ while( (*end && size_left > 0) /* Not the end of string. */
+ && (*end != ')') /* Not the end of the pattern. */
+ && (*end != '*') ) { /* Not a wildcard. */
+ *np++ = *end++;
+ size_left--;
+ }
+
+ if( !*end ) {
+ start = end;
+ continue; /* Always check for the end. */
+ }
+ if( *end == '*' ) {
+ if (size_left > 0 )
+ safe_strcpy( np, match_string, size_left );
+ np += strlen( match_string );
+ size_left -= strlen( match_string );
+ end++; /* Skip the '*' */
+ while ((*end && size_left > 0) /* Not the end of string. */
+ && (*end != ')') /* Not the end of the pattern. */
+ && (*end != '*')) { /* Not a wildcard. */
+ *np++ = *end++;
+ size_left--;
+ }
+ }
+ if (!*end) {
+ start = end;
+ continue; /* Always check for the end. */
+ }
+ if (size_left > 0)
+ *np++ = '\0'; /* NULL terminate it. */
+ DEBUG(5,("End of second in pair '%s'\n", end));
+ new_string[sizeof(new_string)-1] = '\0';
+ pstrcpy( s, new_string ); /* Substitute with the new name. */
+ DEBUG( 5, ("s is now '%s'\n", s) );
+ }
+ start = end; /* Skip a bit which cannot be wanted anymore. */
+ start++;
+ }
+}
+
+/*
+ front end routine to the mangled map code
+ personally I think that the whole idea of "mangled map" is completely bogus
+*/
+void mangle_map_filename(fstring fname, int snum)
+{
+ char *map;
+
+ map = lp_mangled_map(snum);
+ if (!map || !*map) return;
+
+ mangled_map(fname, map);
+}
projects / samba / blobdiff