https://github.com/lostsh/statuscode

get http status code using an HTTP request on port 80
https://github.com/lostsh/statuscode

c-sockets c99 http-code socket-programming

Last synced: 5 days ago
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get http status code using an HTTP request on port 80

• Host: GitHub
• URL: https://github.com/lostsh/statuscode
• Owner: lostsh
• Created: 2024-04-02T12:01:48.000Z (6 months ago)
• Default Branch: main
• Last Pushed: 2024-05-16T09:31:42.000Z (5 months ago)
• Last Synced: 2024-09-25T21:19:12.822Z (8 days ago)
• Topics: c-sockets, c99, http-code, socket-programming
• Language: C
• Homepage:
• Size: 14.6 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# statuscode

Simple C99 script to retrieve **HTTP status code** from _(simple)_ request on port **80** of a given ip.

> Minimalist dependecy on sys lib

>> - main.c: `stdio.h`

>> - requestor.c: `unistd.h` _(for i/o)_, `sys/socket.h`, `arpa/inet.h`

To be precise, the script is just sending `HEAD / HTTP1.0\r\n\r\n` to port **80** of the given target ip. Then read the first **16 bytes** of the response to extract the **http status code**.

For refence about the HTTP verb `HEAD` see [rfc spec](https://www.rfc-editor.org/rfc/rfc1945.html#section-8.2) which explain is the same as `GET` but the server only answer with headers.

## Build / Compile

### 1. Using make

Just type `make` into the directory containing the `Makefile` and the binary will be build into `bin/`.

### 2. Using gcc

From the dicretory containing `src/` and `bin/` use the following gcc compilation line :

```bash

gcc  -g -std=c99 -Wall -pedantic -D_XOPEN_SOURCE=700 -fsanitize=address src/main.c src/requestor.c -o bin/requestor

```

## Install 

## Run

The binary file is in the `bin/` direcotry, either `main` or `requestor`.

Give target ip by argument. `./bin/requestor -t 1.1.1.1`.

Verbose option is available, to enable it add the `-v` argument to comand line.

## Example