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#include <u.h>
#include <libc.h>
#include <auth.h>
#include "authlocal.h"
enum {
ARgiveup = 100,
};
static int
dorpc(AuthRpc *rpc, char *verb, char *val, int len, AuthGetkey *getkey)
{
int ret;
for(;;){
if((ret = auth_rpc(rpc, verb, val, len)) != ARneedkey && ret != ARbadkey)
return ret;
if(getkey == nil)
return ARgiveup; /* don't know how */
if((*getkey)(rpc->arg) < 0)
return ARgiveup; /* user punted */
}
}
UserPasswd*
auth_getuserpasswd(AuthGetkey *getkey, char *fmt, ...)
{
AuthRpc *rpc;
char *f[3], *p, *params;
va_list arg;
UserPasswd *up;
up = nil;
rpc = nil;
params = nil;
rpc = auth_allocrpc();
if(rpc == nil)
goto out;
quotefmtinstall(); /* just in case */
va_start(arg, fmt);
params = vsmprint(fmt, arg);
va_end(arg);
if(params == nil)
goto out;
if(dorpc(rpc, "start", params, strlen(params), getkey) != ARok
|| dorpc(rpc, "read", nil, 0, getkey) != ARok)
goto out;
rpc->arg[rpc->narg] = '\0';
if(tokenize(rpc->arg, f, 2) != 2){
werrstr("bad answer from factotum");
goto out;
}
up = malloc(sizeof(*up)+rpc->narg+1);
if(up == nil)
goto out;
p = (char*)&up[1];
strcpy(p, f[0]);
up->user = p;
p += strlen(p)+1;
strcpy(p, f[1]);
up->passwd = p;
out:
free(params);
auth_freerpc(rpc);
return up;
}
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