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/*
** Copyright 1998 - 1999 Double Precision, Inc. See COPYING for
** distribution information.
*/
#include "auth.h"
#include "authmod.h"
#include "authwait.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <signal.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
static const char rcsid[]="$Id: authmod.c,v 1.5 2001/11/29 02:57:15 mrsam Exp $";
static char authrec[BUFSIZ];
static char buf[BUFSIZ];
void authmod_init(
int argc,
char **argv,
const char **service,
const char **authtype,
char **authdata)
{
FILE *fpin;
int waitstat;
const char *a=getenv("AUTHENTICATED");
char *p;
int n;
if (a && *a) /* Already a good guy */
authmod_success(argc, argv, a);
n=0;
fpin=fdopen(3, "r");
if (fpin)
{
int c;
while ((c=getc(fpin)) != EOF)
if (n < sizeof(buf)-1)
buf[n++]=c;
buf[n]=0;
}
if (n == 0)
{
write(2, "AUTHFAILURE\n", 12);
authexit(1);
}
fclose(fpin);
close(3); /* Insurance */
strcpy(authrec, buf);
signal(SIGCHLD, SIG_DFL);
while (wait(&waitstat) >= 0)
;
p=buf;
*service=p;
while (*p && *p != '\n')
++p;
if (*p) *p++=0;
*authtype=p;
while (*p && *p != '\n')
++p;
if (*p) *p++=0;
*authdata=p;
}
void authmod_success(int argc, char **argv, const char *a)
{
char **vec, *prog;
char *b;
vec=authcopyargv(argc-1, argv+1, &prog);
if (!prog) authexit(1);
b=malloc(sizeof("AUTHENTICATED=")+strlen(a));
if (!b)
{
perror("malloc");
authexit(1);
}
strcat(strcpy(b, "AUTHENTICATED="), a);
putenv(b);
execv(prog, vec);
perror(prog);
authexit(1);
}
void authmod_fail(int argc, char **argv)
{
authchain(argc-1, argv+1, authrec); /* Next module */
}
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