#include <u.h>
#include <libc.h>

/*
 * based on libthread's threadsetname, but drags in less library code.
 * actually just sets the arguments displayed.
 */
void
procsetname(char *fmt, ...)
{
	int fd;
	char *cmdname;
	char buf[128];
	va_list arg;

	va_start(arg, fmt);
	cmdname = vsmprint(fmt, arg);
	va_end(arg);
	if (cmdname == nil)
		return;
	snprint(buf, sizeof buf, "#p/%d/args", getpid());
	if((fd = open(buf, OWRITE)) >= 0){
		write(fd, cmdname, strlen(cmdname)+1);
		close(fd);
	}
	free(cmdname);
}