smash/main.c


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#include "exec.h"

#include "../lib/sys/io.h"
#include "../lib/cstr/cstr.h"

#define BUFSIZ 1024

void clear_buf(char *buf)
{
	for (int i = 0; i < BUFSIZ; ++i)
		buf[i] = 0;
}

int main(int argc, char *argv[], char *envp[])
{
	char buf[BUFSIZ] = {0};
	char prompt[] = "$ ";
	u64 line_length;

	while (1) {
		write(STDOUT_FD, prompt, cstr_length(prompt));
		read(STDIN_FD, buf, 1024);
		line_length = cstr_length(buf);
		if (line_length > 1) {
			buf[line_length - 1] = 0;
			exec(buf);
		}
		clear_buf(buf);
	}
}