#include <u.h>#include <libc.h>#include <authsrv.h>#include <auth.h>#include <bio.h>#include "authcmdlib.h" char	flagd;char	flagn; inttrim(char *s, int n){	if(s[0] == '+' && s[1] == ' ')		memmove(s, s + 2, n -= 2);	else if(!strncmp(s, "334 ", 4))		memmove(s, s + 4, n -= 4);	if(n > 0 && s[n - 1] == '\r')		s[--n] = 0;	if(n > 0 && s[n - 1] == '\n')		s[--n] = 0;	return n;} intdecode(char *s, int n, int *base64){	char ch[128]; 	n = trim(s, n);	if(strchr(s, '<') != 0)		return n;	*base64 = 1;	n = dec64((uchar*)ch, sizeof ch, s, n);	if(n == -1)		sysfatal("dec64: buffer too small");	memcpy(s, ch, n);	s[n] = 0;	return n;} voidusage(void){	fprint(2, "usage: cram [-d6] [-u user] [-s server]\n");	exits("usage");} voidmain(int argc, char *argv[]){	char arbuf[128], buf[1024], ebuf[2048];	char *user, *server, *p, *e;	int n;	UserPasswd *up; 	quotefmtinstall();	fmtinstall('[', encodefmt);	user = getuser();	server = "cramtemp"; 	ARGBEGIN{	case 'd':		flagd++;		break;	case '6':		break;	case 's':		server = EARGF(usage());		break;	case 'u':		user = EARGF(usage());		break;	case 'n':		flagn++;		break;	default:		usage();	}ARGEND	if(argc)		usage(); 	e = arbuf + sizeof arbuf;	p = seprint(arbuf, e, "proto=pass role=client server=%q", server);	if(!flagn)		seprint(p, e, " user=%q", user);	up = auth_getuserpasswd(auth_getkey, "%s", arbuf);	if(!up)		sysfatal("auth_respond: %r");	n = snprint(buf, sizeof buf, "%c%s%c%s", 0, up->user, 0, up->passwd);	enc64(ebuf, sizeof ebuf, (uchar *)buf, n);	print("%s\n", ebuf); 	exits("");}