I have a large application which forks and execv another binary. I have compiled both parent application and forked child application using --coverage flags. Noticed that .gcno files are created for ...

I was trying to understand when the memory owned by shared (smart) pointers are cleared on calling execv() from the code. Assume the following code: #include <memory> class Test { public: ~...

I have a script that is basically just a small GUI to create a config-file for a long-running-program without any graphics. I have and control the source-code for both of these. The usual workflow of ...

I am trying to write only to a file when a user specifies which file to write in with ">". The first iteration works fine, but when a user types any command after the one where they ...

I have a program (parent.rs) that will: Fork Create a userfaultfd on the child, then transfer it to the parent (with pidfd_getfd). Execs the child (child.rs) Child allocates memory with mmap and &...

I am working on custom wrappers for Unix-specific system calls now. And the last problem I met is about how to create a complete function for creating new processes with another image. And I want this ...

I'm afraid I have to take out a bit of length so that my question can be understood exactly. I know that forking can cause some problems, especially if you mix it with threads. One nasty problem I ...

I'm writing pseudo-shell and now write parallel-command functionality. In this question ( Differences between fork and exec ) I'm found how I can call execv with returning to my code execution. But I ...

I'm trying to build a version of a linux shell wherein, I take in the commands from the user and execute the commands using execv() system call. I'm using strtok_r to tokenize the commands and pass ...

I have a simple C program that creates an array of arguments as required by the second argument of execv() that executes a program that computes and outputs the Caeser Cipher decoding of the argument. ...

I have a C program that I am running on my MacOS terminal. All command line tools and GCC compiler have been installed. However for using functions like getpid() or execv() it gives the following ...

I am making a program that can take another program as an argument and run it. I am using execv() to run the second program, but how can I use argv[] (that comes from the main program, is a char*) as ...

I'm currently trying to run an ls command in my C code and then pipe the outputted strings to the parent process via a fd. The problem I'm currently facing is, that I execv the ls command but I don't ...

I'm trying to run a series of commands through execv() and forking a new process in C to run each one, and yet for some reason they aren't running in parallel. The following code is run for each ...

I'm writing a code in C and I'm trying to use 3 commands (echo, grep and wc) with excev() but its not working. It is possible to do it and if not any other solution or I will need to use fscanf(). How ...