/* * Unix SMB/CIFS implementation. * Virtual Windows Registry Layer (utility functions) * Copyright (C) Gerald Carter 2002-2005 * * 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 3 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, see <http://www.gnu.org/licenses/>. */ /* Implementation of registry frontend view functions. */ #include "includes.h" #undef DBGC_CLASS #define DBGC_CLASS DBGC_REGISTRY /*********************************************************************** Utility function for splitting the base path of a registry path off by setting base and new_path to the apprapriate offsets withing the path. WARNING!! Does modify the original string! ***********************************************************************/ bool reg_split_path(char *path, char **base, char **new_path) { char *p; *new_path = *base = NULL; if (!path) { return false; } *base = path; p = strchr(path, '\\'); if ( p ) { *p = '\0'; *new_path = p+1; } return true; } /*********************************************************************** Utility function for splitting the base path of a registry path off by setting base and new_path to the appropriate offsets withing the path. WARNING!! Does modify the original string! ***********************************************************************/ bool reg_split_key(char *path, char **base, char **key) { char *p; *key = *base = NULL; if (!path) { return false; } *base = path; p = strrchr(path, '\\'); if (p) { *p = '\0'; *key = p+1; } return true; } /********************************************************************** The full path to the registry key is used as database after the \'s are converted to /'s. Key string is also normalized to UPPER case. **********************************************************************/ char *normalize_reg_path(TALLOC_CTX *ctx, const char *keyname ) { char *nkeyname = talloc_string_sub(ctx, keyname, "\\", "/"); if (!nkeyname) { return NULL; } strupper_m(nkeyname); return nkeyname; } /********************************************************************** move to next non-delimter character *********************************************************************/ char *reg_remaining_path(TALLOC_CTX *ctx, const char *key) { char *new_path = NULL; char *p = NULL; if (!key || !*key) { return NULL; } new_path = talloc_strdup(ctx, key); if (!new_path) { return NULL; } /* normalize_reg_path( new_path ); */ if (!(p = strchr(new_path, '\\')) ) { if (!(p = strchr( new_path, '/'))) { p = new_path; } else { p++; } } else { p++; } return p; } /********************************************************************** *********************************************************************/ int regval_convert_multi_sz( uint16 *multi_string, size_t byte_len, char ***values ) { char **sz; int i; int num_strings = 0; fstring buffer; uint16 *wp; size_t multi_len = byte_len / 2; if ( !multi_string || !values ) return 0; *values = NULL; /* just count the NULLs */ for ( i=0; (i<multi_len-1) && !(multi_string[i]==0x0 && multi_string[i+1]==0x0); i++ ) { /* peek ahead */ if ( multi_string[i+1] == 0x0 ) num_strings++; } if ( num_strings == 0 ) return 0; if ( !(sz = TALLOC_ARRAY( NULL, char*, num_strings+1 )) ) { DEBUG(0,("reg_convert_multi_sz: talloc() failed!\n")); return -1; } wp = multi_string; for ( i=0; i<num_strings; i++ ) { rpcstr_pull( buffer, wp, sizeof(buffer), -1, STR_TERMINATE ); sz[i] = talloc_strdup( sz, buffer ); /* skip to the next string NULL and then one more */ while ( *wp ) wp++; wp++; } /* tag the array off with an empty string */ sz[i] = '\0'; *values = sz; return num_strings; } /********************************************************************** Returns number of bytes, not number of unicode characters *********************************************************************/ size_t regval_build_multi_sz( char **values, uint16 **buffer ) { int i; size_t buf_size = 0; uint16 *buf, *b; UNISTR2 sz; if ( !values || !buffer ) return 0; /* go ahead and alloc some space */ if ( !(buf = TALLOC_ARRAY( NULL, uint16, 2 )) ) { DEBUG(0,("regval_build_multi_sz: talloc() failed!\n")); return 0; } for ( i=0; values[i]; i++ ) { ZERO_STRUCT( sz ); /* DEBUG(0,("regval_build_multi_sz: building [%s]\n",values[i])); */ init_unistr2( &sz, values[i], UNI_STR_TERMINATE ); /* Alloc some more memory. Always add one one to account for the double NULL termination */ b = TALLOC_REALLOC_ARRAY( NULL, buf, uint16, buf_size+sz.uni_str_len+1 ); if ( !b ) { DEBUG(0,("regval_build_multi_sz: talloc() reallocation error!\n")); TALLOC_FREE( buffer ); return 0; } buf = b; /* copy the unistring2 buffer and increment the size */ /* dump_data(1,sz.buffer,sz.uni_str_len*2); */ memcpy( buf+buf_size, sz.buffer, sz.uni_str_len*2 ); buf_size += sz.uni_str_len; /* cleanup rather than leaving memory hanging around */ TALLOC_FREE( sz.buffer ); } buf[buf_size++] = 0x0; *buffer = buf; /* return number of bytes */ return buf_size*2; }