A tiny subprocess library
-
[
lbuffer] https://github.com/LeandreBl/C-string
int main(void)
{
lsubprocess_t sp;
char *output;
/* Create a "bash" subprocess, and tell the library that we'll handle stdin ourself */
lsubprocess_create(&sp, "bash", true);
/* As stdin is handled by our program, we need to send the command lines to bash ourself */
lsubprocess_bufferize_stdin(&sp, "ls -C -l --color=yes\nexit\n", 26);
/* The above command just filled a buffer, we now need to send this whole buffer to the subprocess */
lsubprocess_update_stdin(&sp);
/* We now wait the subprocess to finish */
lsubprocess_wait(&sp);
/* As the process is now finished, we need to update the stdout internal buffer */
lsubprocess_update_stdout(&sp);
/* The buffer being now updated, we retrieve the whole stdout buffer content in a string */
lbuffer_retrieve(&sp.stdout, &output);
/* A little print to see if it worked */
printf("output: %s", output);
free(output);
/* Destroy all internal process data, and if it was not the case, kills it with a SIGTERM */
lsubprocess_destroy(&sp);
return (0);
}