2003-09-22 20:49:53 +00:00
|
|
|
/*
|
2003-11-16 19:33:39 +00:00
|
|
|
* $Id: getpassword.c,v 1.7 2003/09/28 19:29:17 bryan Exp $
|
2003-09-22 20:49:53 +00:00
|
|
|
*
|
|
|
|
* Copyright conserver.com, 2000
|
|
|
|
*
|
|
|
|
* Maintainer/Enhancer: Bryan Stansell (bryan@conserver.com)
|
|
|
|
*
|
|
|
|
* Copyright GNAC, Inc., 1998
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <compat.h>
|
|
|
|
|
|
|
|
#include <pwd.h>
|
|
|
|
|
|
|
|
#include <util.h>
|
|
|
|
#include <version.h>
|
|
|
|
|
|
|
|
|
|
|
|
/* the next two routines assure that the users tty is in the
|
|
|
|
* correct mode for us to do our thing
|
|
|
|
*/
|
|
|
|
static int screwy = 0;
|
|
|
|
static struct termios o_tios;
|
|
|
|
/* this holds the password given to us by the user */
|
|
|
|
static STRING *pass = (STRING *)0;
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* show characters that are already tty processed,
|
|
|
|
* and read characters before cononical processing
|
|
|
|
* we really use cbreak at PUCC because we need even parity...
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
#if PROTOTYPES
|
|
|
|
C2Raw(int fd)
|
|
|
|
#else
|
|
|
|
C2Raw(fd)
|
|
|
|
int fd;
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
struct termios n_tios;
|
|
|
|
|
|
|
|
if (!isatty(fd) || 0 != screwy)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (0 != tcgetattr(fd, &o_tios)) {
|
|
|
|
Error("tcgetattr(%d): %s", fd, strerror(errno));
|
2003-09-29 15:50:27 +00:00
|
|
|
Bye(EX_UNAVAILABLE);
|
2003-09-22 20:49:53 +00:00
|
|
|
}
|
|
|
|
n_tios = o_tios;
|
|
|
|
n_tios.c_iflag &= ~(IUCLC | IXON);
|
|
|
|
n_tios.c_oflag &= ~OPOST;
|
|
|
|
n_tios.c_lflag &= ~(ISIG | ECHO | IEXTEN);
|
|
|
|
n_tios.c_cc[VMIN] = 1;
|
|
|
|
n_tios.c_cc[VTIME] = 0;
|
|
|
|
if (0 != tcsetattr(fd, TCSANOW, &n_tios)) {
|
|
|
|
Error("tcsetattr(%d, TCSANOW): %s", fd, strerror(errno));
|
2003-09-29 15:50:27 +00:00
|
|
|
Bye(EX_UNAVAILABLE);
|
2003-09-22 20:49:53 +00:00
|
|
|
}
|
|
|
|
screwy = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* put the tty back as it was, however that was
|
|
|
|
*/
|
|
|
|
static void
|
|
|
|
#if PROTOTYPES
|
|
|
|
C2Normal(int fd)
|
|
|
|
#else
|
|
|
|
C2Normal(fd)
|
|
|
|
int fd;
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
if (!screwy)
|
|
|
|
return;
|
|
|
|
tcsetattr(fd, TCSANOW, &o_tios);
|
|
|
|
screwy = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
char *
|
|
|
|
#if PROTOTYPES
|
|
|
|
GetPassword(char *prompt)
|
|
|
|
#else
|
|
|
|
GetPassword(prompt)
|
|
|
|
char *prompt;
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
int fd;
|
|
|
|
int nc;
|
|
|
|
char buf[BUFSIZ];
|
|
|
|
int done = 0;
|
|
|
|
|
|
|
|
if (prompt == (char *)0)
|
|
|
|
prompt = "";
|
|
|
|
if ((pass = AllocString()) == (STRING *)0)
|
|
|
|
OutOfMem();
|
|
|
|
BuildString((char *)0, pass);
|
|
|
|
|
|
|
|
if ((fd = open("/dev/tty", O_RDWR)) == -1) {
|
|
|
|
Error("could not open `/dev/tty': %s", strerror(errno));
|
|
|
|
return (char *)0;
|
|
|
|
}
|
|
|
|
|
|
|
|
C2Raw(fd);
|
|
|
|
write(fd, prompt, strlen(prompt));
|
|
|
|
while (!done) {
|
|
|
|
int i;
|
|
|
|
if ((nc = read(0, buf, sizeof(buf))) == 0)
|
|
|
|
break;
|
|
|
|
for (i = 0; i < nc; ++i) {
|
|
|
|
if (buf[i] == 0x0d || buf[i] == 0x0a) {
|
|
|
|
/* CR, NL */
|
|
|
|
done = 1;
|
|
|
|
break;
|
|
|
|
} else
|
|
|
|
BuildStringChar(buf[i], pass);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
C2Normal(fd);
|
|
|
|
/*
|
|
|
|
{
|
|
|
|
static STRING *c = (STRING *) 0;
|
|
|
|
if ((c = AllocString()) == (STRING *) 0)
|
|
|
|
OutOfMem();
|
|
|
|
write(fd, "\n'", 2);
|
|
|
|
if (pass->used) {
|
|
|
|
FmtCtlStr(pass->string, pass->used - 1, c);
|
|
|
|
write(fd, c->string, c->used - 1);
|
|
|
|
}
|
|
|
|
write(fd, "'\n", 2);
|
|
|
|
}
|
|
|
|
*/
|
|
|
|
write(fd, "\n", 1);
|
|
|
|
close(fd);
|
|
|
|
/* this way a (char*)0 is only returned on error */
|
|
|
|
if (pass->string == (char *)0)
|
|
|
|
return "";
|
|
|
|
else
|
|
|
|
return pass->string;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
#if PROTOTYPES
|
|
|
|
ClearPassword(void)
|
|
|
|
#else
|
|
|
|
ClearPassword()
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
if (pass == (STRING *)0 || pass->allocated == 0)
|
|
|
|
return;
|
|
|
|
|
|
|
|
#if HAVE_MEMSET
|
|
|
|
memset((void *)(pass->string), '\000', pass->allocated);
|
|
|
|
#else
|
|
|
|
bzero((char *)(pass->string), pass->allocated);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
BuildString((char *)0, pass);
|
|
|
|
}
|