If given no arguments or redirection use, the cat command reads from standard input. But when I execute it with execve() it doesn't behave as it does ...
If given no arguments or redirection use, the cat command reads from standard input. But when I execute it with execve() it doesn't behave as it does ...
I created a simple shell program that _displays a prompt _receives user input using readline() _splits the input into words based on where spaces are ...
I have a very curious case that I spent a week trying to debug to no avail. For context, I want to start playing with the nix package manager and I ma ...
Is there a way to not sent SIGINT to a child process when SIGINT is sent to a parent? Example: main.c: The program that is being run as a child ru ...
I'm reading a unix book and specifically the part about execve() system call. The book says that file descriptors related to opened file are passed to ...
I am recreating a complete shell. For that I must simulate "|". To do this, I have to use the dup2(), fork() and pipe() functions. The code I've had ...
I am trying to create a simple shell in C. I am having issues with using the execve() function. So I have my arguments declared as char *cmdargs[10]; ...
I want to send_sig_info to a process from inside bpf function (execve) but it won't load. I know that they added a helper function since kernel 5.3 bu ...
I am trying to implement a simple shell program that runs user input commands. I want the user to enter "ls" or "dir" and have the shell run /bin/ls o ...
I couldn't really find any relevant results after looking for a while, so I'm asking this myself. I have the following C code, which tries to execute ...
Here is my pipe to pipe function: int *pip is the pipe that I want to read from char **cmd is the command that I want to execute char **envp p ...
I am writing basic payload for execve syscall. In nasm the payload is: The C file is: There are 2 syscall first one is execve and second is exit ...
I'm trying to implement a basic shell using the given below code. It is throwing an error when trying to load and run a non-builtin command. For so ...
https://www.exploit-db.com/exploits/46907 My understanding is that due to x64 calling convention, the 3rd paramfor execve, the envp, should be stored ...
I have a specific question, I have a binary that launch a shell with execv but the shell change the user and with gdb i can't seem to find where the u ...
I am trying to run touch command via execve(), here is my code: But it doesn't seem like the file is being touched or the date isn't being updated. ...
I have two programs: Program "Vanilla", and program "verB". My instructions are that the main process will deal with I\O from the user, and the child ...
Recently I have been trying to explore iOS command shell programming. I could successfully write a simple Assembly "Hello World" program as follows: ...
I am building an application that uses either replxx or libedit to read a line from a terminal, along with tab completion. In order for replxx and lib ...
I am writing this function: my question is, what is the difference between writing the line: instead of: if there is any difference which is ...