pipe_exec | Execute binaries from pipes , stdin and ttys

by koraa C Version: Current License: MIT

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kandi X-RAY | pipe_exec Summary

pipe_exec is a C library. pipe_exec has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Execute ELF binaries from pipes & and terminals. This makes it possible to execute binaries that are not stored in a file system or for which the execute permission is not set and to run binaries directly from stdin; e.g. when piping gcc output or when downloading them via SSH. It works by allocating an in-memory file via the memfd_create(2) syscall, copying all data from the executable there and finally executing it using the fexecve(3) syscall. pipe_exec will first try to execute the file in place; e.g. pexec

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Support

pipe_exec has a low active ecosystem.

It has 50 star(s) with 5 fork(s). There are 5 watchers for this library.

It had no major release in the last 6 months.

There are 3 open issues and 1 have been closed. On average issues are closed in 1093 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of pipe_exec is current.

Quality

pipe_exec has no bugs reported.

Security

pipe_exec has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

pipe_exec is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

pipe_exec releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

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pipe_exec Key Features

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pipe_exec Examples and Code Snippets

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Community Discussions

Trending Discussions on pipe_exec

Why does wc command in execvp() return the wrong results when taking input from a pipe in my shell?

QUESTION

Why does wc command in execvp() return the wrong results when taking input from a pipe in my shell?

Asked 2021-Mar-03 at 22:05

I'm working on writing a shell in C for learning purposes and I'm trying to allow for a variable number of pipes. In general, it seems to work great. But I noticed a problem with the wc command.

When I pipe some output of another program into wc like ls | wc it always returns
1 3 35 no matter what I pipe into it. Other commands work as expected when I pipe into them. In my normal zsh shell wc works fine. I'm struggling to find the problem. I've tried adding waitpid after the forks but no dice.

Here's the main shell loop in the main function:

...

ANSWER

Answered 2021-Mar-03 at 21:45

You execute the last command twice and pipe its first instance to the second. Adding something like:

Source https://stackoverflow.com/questions/66428692

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install pipe_exec

Install the required packages:.
build-essential

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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