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/*
** Copyright 1998 - 1999 Double Precision, Inc. See COPYING for
** distribution information.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_FCNTL_H
#include <fcntl.h>
#endif
#include "auth.h"
static const char rcsid[]="$Id: chain.c,v 1.4 2000/05/14 17:39:10 mrsam Exp $";
void authchain(int argc, char **argv, const char *buf)
{
int pipes[2];
pid_t p;
int l, n;
char **vec;
char *prog;
vec=authcopyargv(argc, argv, &prog);
close(3);
if (!prog || open("/dev/null", O_RDONLY) != 3) authexit(1);
if (pipe(pipes))
{
perror("pipe");
authexit(1);
}
while ((p=fork()) < 0)
{
perror("fork");
sleep(3);
}
close(3);
if (p)
{
dup(pipes[0]);
close(pipes[0]);
close(pipes[1]);
execv(prog, vec);
perror(prog);
authexit(1);
}
l=strlen(buf);
close(pipes[0]);
while (l)
{
n=write(pipes[1], buf, l);
if (n <= 0) break;
buf += n;
l -= n;
}
close(pipes[1]);
authexit(1);
}
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