https://github.com/simonefelici/pipex
Redirections and pipes
https://github.com/simonefelici/pipex
Last synced: 19 days ago
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Redirections and pipes
- Host: GitHub
- URL: https://github.com/simonefelici/pipex
- Owner: SimoneFelici
- Created: 2025-02-25T14:06:59.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2025-03-10T15:03:22.000Z (over 1 year ago)
- Last Synced: 2025-03-10T16:29:27.162Z (over 1 year ago)
- Language: C
- Size: 22.5 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
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Metadata Files:
- Readme: README.md
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README
# pipex
Redirections and pipes
# NOTES
- perror: stdio.h | print a system error message.
- strerror: string.h | return string describing error number.
- access: unistd.h | check user's permissions for a file.
- dup: unistd.h | creates a copy of the file descriptor, using the lowest-numbered unused file descriptor for the new descriptor.
- dup2: unistd.h | performs the same as dup(), but instead of using the lowest-numbered unused file descriptor, it uses the specified file descriptor number.
- execve: unistd.h | execute program.
- fork: sys/types.h, unistd.h | creates a new process by duplicating the calling process.
- pipe: unistd.h | creates a pipe, a unidirectional data channel that can be used for interprocess communication.
- unlink: unistd.h, fcntl.h | delete a name and possibly the file it refers to.
- wait sys/types.h, sys/wait.h | suspends execution of the calling thread until one of its children terminates.
- waitpid sys/types.h, sys/wait.h | suspends execution of the calling thread until a child specified by pid argument has changed state.
# MAIN FLOW
"open": get FD of infile, if outfile exists, get FD of outfile, else crete outfile and get FD.
"access": check file permissions.
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(I forgot to updated it💀)