Changeset 66 for trunk

Timestamp:

07/23/06 18:46:15 (18 years ago)

Author:

tim

Message:

fixed quoting bug in key names

fixed unicode decoding and string display bugs.

File:

• trunk/src/reglookup.c (modified) (22 diffs)

trunk/src/reglookup.c

@@ -43 +43 @@
 
 /* Other globals */
-const char* special_chars = ",\"\\";
+const char* key_special_chars = ",\"\\/";
+const char* subfield_special_chars = ",\"\\|";
+const char* common_special_chars = ",\"\\";
+
 iconv_t conv_desc;
 
@@ -150 +153 @@
   {
     iconv_close(conv_desc);
-    return -1;
-  }
+    return -errno;
+  }
+  *outbuf = '\0';
 
   iconv_close(conv_desc);  
@@ -173 +177 @@
   unsigned int ascii_max, cur_str_max;
   unsigned int str_rem, cur_str_rem, alen;
+  int ret_err;
 
   switch (type) 
   {
+  case REG_SZ:
+  case REG_EXPAND_SZ:
     /* REG_LINK is a symbolic link, stored as a unicode string. */
   case REG_LINK:
-  case REG_SZ:
     ascii_max = sizeof(char)*len;
     ascii = malloc(ascii_max+4);
@@ -184 +190 @@
       return NULL;
     
-    if(uni_to_ascii(datap, ascii, len, ascii_max) < 0)
-    {
-      free(ascii);
-      return NULL;
-    }
-    cur_quoted = quote_string(ascii, special_chars);
-    free(ascii);
-    return cur_quoted;
-    break;
-
-    /* XXX: This could be Unicode or ASCII.  Are we processing it 
-     *      correctly in both cases? 
+    /* Sometimes values have binary stored in them.  If the unicode
+     * conversion fails, just quote it raw.
      */
-  case REG_EXPAND_SZ:
-    ascii_max = sizeof(char)*len;
-    ascii = malloc(ascii_max+2);
-    if(ascii == NULL)
-      return NULL;
-
-    if(uni_to_ascii(datap, ascii, len, ascii_max) < 0)
-    {
-      free(ascii);
-      return NULL;
-    }
-    cur_quoted = quote_string(ascii, special_chars);
+    
+    ret_err = uni_to_ascii(datap, ascii, len, ascii_max);
+    if(ret_err < 0)
+    {
+      /* XXX: It would be nice if somehow we could include the name of this
+       *      value in the error message.
+       */
+      if(print_verbose)
+        fprintf(stderr, "VERBOSE: Unicode conversion failed; "
+                "printing as binary.  Error: %s\n", strerror(-ret_err));
+
+      cur_quoted = quote_buffer(datap, len, common_special_chars);
+    }
+    else
+      cur_quoted = quote_string(ascii, common_special_chars);
     free(ascii);
     return cur_quoted;
@@ -269 +268 @@
       if(num_nulls == 2)
       {
-        if(uni_to_ascii(cur_str, cur_ascii, cur_str_max, cur_str_max) < 0)
+        ret_err = uni_to_ascii(cur_str, cur_ascii, cur_str_len-1, cur_str_max);
+        if(ret_err < 0)
         {
-          free(ascii);
-          free(cur_ascii);
-          free(cur_str);
-          return NULL;
+          /* XXX: It would be nice if somehow we could include the name of this
+           *      value in the error message.
+           */
+          if(print_verbose)
+            fprintf(stderr, "VERBOSE: Unicode conversion failed on sub-field; "
+                    "printing as binary.  Error: %s\n", strerror(-ret_err));
+          
+          cur_quoted = quote_buffer(cur_str, cur_str_len-1, 
+                                    subfield_special_chars);
         }
-
-        cur_quoted = quote_string(cur_ascii, ",|\"\\");
+        else
+          cur_quoted = quote_string(cur_ascii, subfield_special_chars);
+
         alen = snprintf(asciip, str_rem, "%s", cur_quoted);
         asciip += alen;
@@ -315 +321 @@
 
   case REG_BINARY:
-    return quote_buffer(datap, len, special_chars);
+    return quote_buffer(datap, len, common_special_chars);
     break;
 
@@ -366 +372 @@
 }
 
-
+/* Returns a quoted path from an nk_stack */
 char* stack2Path(void_stack* nk_stack)
 {
@@ -376 +382 @@
   char* buf; 
   char* new_buf;
+  char* name;
   void_stack_iterator* iter;
   
@@ -397 +404 @@
     buf[buf_len-buf_left-1] = '/';
     buf_left -= 1;
-    name_len = strlen(cur->keyname);
+    name = quote_string(cur->keyname, key_special_chars);
+    name_len = strlen(name);
     if(name_len+1 > buf_left)
     {
@@ -411 +419 @@
       buf_left = grow_amt + name_len + 1;
     }
-    strncpy(buf+(buf_len-buf_left-1), cur->keyname, name_len);
+    strncpy(buf+(buf_len-buf_left-1), name, name_len);
     buf_left -= name_len;
     buf[buf_len-buf_left-1] = '\0';
+    free(name);
   }
 
@@ -424 +433 @@
   uint32 size;
   uint8 tmp_buf[4];
-  char* quoted_value;
-  char* quoted_prefix;
-  char* quoted_name;
+  char* quoted_value = NULL;
+  char* quoted_name = NULL;
 
   /* Thanks Microsoft for making this process so straight-forward!!! */
@@ -460 +468 @@
    *      for that condition.
    */
-  quoted_prefix = quote_string(prefix, special_chars);
-  quoted_name = quote_string(vk->valuename, special_chars);
-  
+  quoted_name = quote_string(vk->valuename, common_special_chars);
   if(print_security)
-    printf("%s/%s,%s,%s,,,,,\n", quoted_prefix, quoted_name,
+    printf("%s/%s,%s,%s,,,,,\n", prefix, quoted_name,
            regfio_type_val2str(vk->type), quoted_value);
   else
-    printf("%s/%s,%s,%s,\n", quoted_prefix, quoted_name,
+    printf("%s/%s,%s,%s,\n", prefix, quoted_name,
            regfio_type_val2str(vk->type), quoted_value);
   
   if(quoted_value != NULL)
     free(quoted_value);
-  if(quoted_prefix != NULL)
-    free(quoted_prefix);
   if(quoted_name != NULL)
     free(quoted_name);
@@ -485 +489 @@
   for(i=0; i < nk->num_values; i++)
     if(!type_filter_enabled || (nk->values[i].type == type_filter))
-      printValue(&nk->values[i], prefix);
+      printValue(nk->values+i, prefix);
 }
 
@@ -499 +503 @@
   time_t tmp_time[1];
   struct tm* tmp_time_s = NULL;
-  char* quoted_path = NULL;
-
-  /* XXX: it would be faster to always pass a quoted string to this
-   *      function, instead of re-quoting it every call. */
-  /* XXX: check return of quote_string */
-  quoted_path = quote_string(full_path, special_chars);
+
   *tmp_time = nt_time_to_unix(&k->mtime);
   tmp_time_s = gmtime(tmp_time);
@@ -524 +523 @@
       dacl = empty_str;
 
-    printf("%s,KEY,,%s,%s,%s,%s,%s\n", quoted_path, mtime, 
+    printf("%s,KEY,,%s,%s,%s,%s,%s\n", full_path, mtime, 
            owner, group, sacl, dacl);
 
@@ -537 +536 @@
   }
   else
-    printf("%s,KEY,,%s\n", quoted_path, mtime);
-
-  free(quoted_path);
-}
-
-
-/* XXX: this function is awful.  Needs to be re-designed. */
-void printKeyTree(REGF_FILE* f, void_stack* nk_stack, char* prefix)
+    printf("%s,KEY,,%s\n", full_path, mtime);
+}
+
+
+void printKeyTree(REGF_FILE* f, void_stack* nk_stack, const char* prefix)
 {
   REGF_NK_REC* cur = NULL;
@@ -550 +546 @@
   char* path = NULL;
   char* val_path = NULL;
+  uint32 val_path_len = 0;
+  uint32 path_len = 0;
+  uint32 prefix_len = strlen(prefix);
   int key_type = regfio_type_str2val("KEY");
   
@@ -566 +565 @@
     }
 
-    val_path = (char*)malloc(strlen(prefix)+strlen(path)+1);
-    sprintf(val_path, "%s%s", prefix, path);
+    path_len = strlen(path);
+    val_path_len = prefix_len+path_len;
+    val_path = (char*)malloc(val_path_len+1+1);
+    if(val_path == NULL)
+      bailOut(2, "ERROR: Could not allocate val_path.\n");
+
+    strcpy(val_path, prefix);
+    strcpy(val_path+prefix_len, path);
     if(val_path[0] == '\0')
     {
@@ -573 +578 @@
       val_path[1] = '\0';
     }
-
     if(!type_filter_enabled || (key_type == type_filter))
       printKey(cur, val_path);
     if(!type_filter_enabled || (key_type != type_filter))
       printValueList(cur, val_path);
-    if(val_path != NULL)
-      free(val_path);
+    
     while((cur = (REGF_NK_REC*)void_stack_cur(nk_stack)) != NULL)
     {
-      if((sub = regfio_fetch_subkey(f, cur)) != NULL)
+      if((sub = regfio_fetch_subkey(f, cur)) == NULL)
+      {
+        sub = void_stack_pop(nk_stack);
+        /* XXX: This is just a shallow free.  Need to write deep free
+         * routines to replace the Samba code for this. 
+         */ 
+        if(sub != NULL)
+          free(sub);
+      }
+      else
       {
         sub->subkey_index = 0;
@@ -589 +601 @@
         if(path != NULL)
         {
-          val_path = (char*)malloc(strlen(prefix)+strlen(path)+1);
-          sprintf(val_path, "%s%s", prefix, path);
+          path_len = strlen(path);
+          if(val_path_len < prefix_len+path_len)
+          {
+            val_path_len = prefix_len+path_len;
+            val_path = (char*)realloc(val_path, val_path_len+1);
+            if(val_path == NULL)
+              bailOut(2, "ERROR: Could not reallocate val_path.\n");
+          }
+          strcpy(val_path, prefix);
+          strcpy(val_path+prefix_len, path);
           if(!type_filter_enabled || (key_type == type_filter))
             printKey(sub, val_path);
           if(!type_filter_enabled || (key_type != type_filter))
             printValueList(sub, val_path);
-          if(val_path != NULL)
-            free(val_path);
         }
       }
-      else
-      {
-        cur = void_stack_pop(nk_stack);
-        /* XXX: This is just a shallow free.  Need to write deep free
-         * routines to replace the Samba code for this. 
-         */ 
-        if(cur != NULL)
-          free(cur);
-      }
-    }
-  }
+    }
+  }
+  if(val_path != NULL)
+    free(val_path);
   if(print_verbose)
     fprintf(stderr, "VERBOSE: Finished printing key tree.\n");
@@ -627 +638 @@
   void_stack* sub_nk_stack;
   char* prefix;
-  uint32 prefix_len;
   char* cur_str = NULL;
   char* path = NULL;
+  char* name;
+  uint16 path_depth;
+  uint32 i, prefix_len;
   bool found_cur = true;
-  uint32 i;
-  uint16 path_depth;
   if(path_stack == NULL)
     return -1;
@@ -715 +726 @@
       if(prefix == NULL)
         return -1;
+      name = quote_string(sub->keyname, key_special_chars);
       strcat(prefix, "/");
-      strcat(prefix, sub->keyname);
+      strcat(prefix, name);
+      free(name);
 
       if(print_verbose)