r11072: add routines for converting REG_MULTI_SZ to and from char**

[kai/samba.git] / source3 / registry / reg_util.c

diff --git a/source3/registry/reg_util.c b/source3/registry/reg_util.c
index 9f19db2646a12a61f2926b5e861accb5c15b180a..4338699c00e6637483e4ec0e8f4dd8f97fd57010 100644 (file)
--- a/source3/registry/reg_util.c
+++ b/source3/registry/reg_util.c
@@ -125,3 +125,107 @@ char* reg_remaining_path( const char *key )
        return p;
 }
 
+/**********************************************************************
+*********************************************************************/
+
+int regval_convert_multi_sz( uint16 *multi_string, size_t multi_len, char ***values )
+{
+       char **sz;
+       int i;
+       int num_strings = 0;
+       fstring buffer;
+       uint16 *wp;
+       
+       *values = NULL;
+       
+       /* just count the NULLs */
+       
+       for ( i=0; (i<multi_len-1) && !(multi_string[i]==0x0 && multi_string[i+1]==0x0); i++ ) {
+               if ( multi_string[i] == 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;
+       
+       /* 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 );
+               
+               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 */ 
+               
+               memcpy( buf+buf_size, sz.buffer, sz.uni_str_len );
+               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;
+}
+
+
+
+
+
+