Tcp Socket Optimization Function

What the source does

• FilesystemNone observedNo reads or writes in the source
• NetworkNone observedNo outbound calls in the source
• ShellNone observedNo commands run in the source
• DependenciesPinnedNothing floats
• SecretsNone foundNo keys in source

Five audit layers

Gates applied: no behavioural pass.

Audit 0.4.1 · source sha 04e912cff54b · 14 Oct 2026Report an issue or request a re-scan

• PublisherECNU-ICALK GitHub organizationOwner of the repository this skill is read from
• Source folderECNU-ICALK/AutoSkill/SkillBank/ConvSkill/english_gpt4_8_GLM4.7/tcp-socket-optimization-functionThe exact folder we audited
• LicenceNot declaredAs the repository states it
• Commit pinned for this verdict04e912cff54bA new audit runs when the source changes
• Repository statusNot archivedLast push 157 days ago
• Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

Its description: Write a C function to configure TCP socket options (TCP_NODELAY, TCP_CORK, TCP_NOPUSH, TCP_QUICKACK, IP_TOS) for either low latency or maximum throughput using a boolean switch.

---
id: "37470de2-f300-4869-85fd-3870b4239803"
name: "TCP Socket Optimization Function"
description: "Write a C function to configure TCP socket options (TCP_NODELAY, TCP_CORK, TCP_NOPUSH, TCP_QUICKACK, IP_TOS) for either low latency or maximum throughput using a boolean switch."
version: "0.1.0"
tags:
  - "C"
  - "TCP"
  - "Socket Programming"
  - "Network Optimization"
  - "Linux"
  - "BSD"
triggers:
  - "write a C function to set TCP socket options for low latency or throughput"
  - "configure TCP_NODELAY TCP_CORK TCP_QUICKACK IP_TOS in C"
  - "socket optimization function with latency switch"
  - "C code for TCP socket performance tuning"
  - "set socket options for maximum throughput or low latency"
---

# TCP Socket Optimization Function

Write a C function to configure TCP socket options (TCP_NODELAY, TCP_CORK, TCP_NOPUSH, TCP_QUICKACK, IP_TOS) for either low latency or maximum throughput using a boolean switch.

## Prompt

# Role & Objective
You are a C network programming expert. Your task is to write a C function that configures a TCP socket for either low latency or maximum throughput based on a boolean flag.

# Operational Rules & Constraints
1. **Function Signature**: The function must accept a socket file descriptor (`int sockfd`) and a boolean flag (e.g., `int optimize_for_latency`).
2. **Socket Options**: Configure the following options using `setsockopt`:
   - `IP_TOS`: Set to `IPTOS_LOWDELAY` for low latency, `IPTOS_THROUGHPUT` for throughput.
   - `TCP_NODELAY`: Enable (1) for low latency, disable (0) for throughput.
   - `TCP_QUICKACK`: Enable (1) for low latency, disable (0) for throughput.
   - `TCP_CORK` (Linux) / `TCP_NOPUSH` (BSD): Disable (0) for low latency, enable (1) for throughput.
3. **Platform Compatibility**: Use preprocessor directives (`#ifdef TCP_CORK`, `#ifdef TCP_NOPUSH`) to handle platform differences between Linux and BSD systems.
4. **Control Flow**: Use traditional `if-else` statements for logic control. Do NOT use the ternary operator (`?`).
5. **Error Handling**: Check the return value of `setsockopt` and return -1 on error, 0 on success.
6. **Comments**: Provide clear comments explaining the purpose of each socket option and the logic behind the configuration.

# Communication & Style Preferences
- Use standard C libraries (`sys/socket.h`, `netinet/tcp.h`, etc.).
- Ensure code is readable and well-commented.

## Triggers

- write a C function to set TCP socket options for low latency or throughput
- configure TCP_NODELAY TCP_CORK TCP_QUICKACK IP_TOS in C
- socket optimization function with latency switch
- C code for TCP socket performance tuning
- set socket options for maximum throughput or low latency

Excerpt, first 2,696 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

git clone https://github.com/ECNU-ICALK/AutoSkill
git -C AutoSkill checkout 04e912cff54b

Works in

1. 2026-10-14
   ✓SAFE B 89 / 100

   first audit · source 04e912cff54b

Questions about Tcp Socket Optimization Function

• github.com/ECNU-ICALK/AutoSkill/tree/main/SkillBank/ConvSkill/en — the audited source at commit 04e912cff54b and every finding aboveObserved · 14 Oct 2026

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