#include <stdio.h>
#include <sys/select.h>
#include <unistd.h>


// Cat a file with indefinite blocking in case the file is deleted.


int main(int argc, char *argv[])
{
	if(argc < 2) return 1;

	FILE *in = fopen(argv[1], "r");
	if(in)
	{
		while(1)
		{
			unsigned char buffer[1];
			int bytes_read = fread(buffer, 1, 1, in);
			if(bytes_read > 0)
			{
				fwrite(buffer, 1, 1, stdout);
			}
			else
			{
				fflush(stdout);
				usleep(100000);
			}
		}
	}
}