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GNUNET_OS_start_process and process arguments

From: Alessio Vanni
Subject: GNUNET_OS_start_process and process arguments
Date: Sun, 13 Dec 2020 16:32:42 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux)


I noticed a curious situation, best explained by this example:

Let's say I have a program (let's call it 'gnunet-exec') that starts a
process using `GNUNET_OS_start_process', with the program file name
taken from the command line and using the two strings "hello" and
"world" as arguments to the process.

Let's also say I have this small program:

int main(int argc, char *argv[]) {
    printf("[%s] [%s] [%s]\n", argv[0], argv[1], argv[2]);
    return 0;

I then get this result ($ is the shell prompt):

$ ./small-program hello world
[small-program] [hello] [world]

$ gnunet-exec small-program
[hello] [world] [(null)]

Essentially, argv[0] becomes the first argument instead of containing
the program name.

Is this intentional or is it a bug?


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