Proposal for issue #677

[KOMMYHAP]

Fixed confusion with number of bytes and number of characters.

Summary by CodeRabbit

• Bug Fixes
  • Enhanced the conversion of addresses to strings to ensure complete and accurate display.
  • Improved handling of available display space, returning an error when space is insufficient, which helps maintain robustness in address outputs.

[mitza-oci]

Link to Issue #677

[coderabbitai]

Walkthrough

The change updates the internal logic of the addr_to_string method in HTBP_Addr.cpp. The new implementation computes a max_num from the available buffer size to ensure that it can hold the string and the null terminator. If the buffer is too small, the method returns -1; otherwise, it uses an updated call to ACE_OS::strncpy to copy the string, ensuring proper termination.

Changes

File	Change Summary
ACE/protocols/ace/HTBP/HTBP_Addr.cpp	Modified addr_to_string: replaced old buffer size check with calculation (max_num = size / sizeof(ACE_TCHAR)), verifies buffer can hold string+null, returns -1 if not, and updates ACE_OS::strncpy to copy htid_.length() + 1 bytes to include the null terminator.

Sequence Diagram(s)

sequenceDiagram
    participant Caller as Caller
    participant Addr as HTBP::Addr
    participant OS as ACE_OS

    Caller->>Addr: Call addr_to_string(buffer, size, ipaddr_format)
    Addr->>Addr: Calculate max_num = size / sizeof(ACE_TCHAR)
    alt Insufficient Buffer
        Addr->>Caller: Return -1
    else Sufficient Buffer
        Addr->>OS: Call ACE_OS::strncpy(buffer, htid_, htid_.length() + 1)
        Addr->>Caller: Return success code
    end

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Poem

I hop through code with glee so bright,
Buffer checks ensure my path is right.
A null terminator now in tow,
Copying strings with a rhythmic flow.
In every change, I bound in delight.
🐇✨ Happy hops into the night!

✨ Finishing Touches

• 📝 Generate Docstrings (Beta)

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

ACE/protocols/ace/HTBP/HTBP_Addr.cpp (1)

61-63: Consider using ACE_OS::strsncpy for additional safety.

While the current implementation is correct, consider using ACE_OS::strsncpy which provides additional safety guarantees for string termination.

-  ACE_OS::strncpy (buffer,
-                   ACE_TEXT_CHAR_TO_TCHAR(htid_.c_str()),
-                   htid_.length() + 1);  // + '\0'
+  ACE_OS::strsncpy (buffer,
+                    ACE_TEXT_CHAR_TO_TCHAR(htid_.c_str()),
+                    max_num);

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 5f11974 and 4d208d6.

📒 Files selected for processing (1)

• ACE/protocols/ace/HTBP/HTBP_Addr.cpp (1 hunks)

🔇 Additional comments (1)

ACE/protocols/ace/HTBP/HTBP_Addr.cpp (1)

58-60: LGTM! Proper buffer size calculation.

The code now correctly handles the distinction between bytes and characters by dividing the buffer size by sizeof(ACE_TCHAR). The check for null terminator space is also correct.