140 lines
3.4 KiB
C
140 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 1999-2005, 2007-2010 Todd C. Miller <Todd.Miller@courtesan.com>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*
|
|
* Sponsored in part by the Defense Advanced Research Projects
|
|
* Agency (DARPA) and Air Force Research Laboratory, Air Force
|
|
* Materiel Command, USAF, under agreement number F39502-99-1-0512.
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <stdio.h>
|
|
#ifdef STDC_HEADERS
|
|
# include <stdlib.h>
|
|
# include <stddef.h>
|
|
#else
|
|
# ifdef HAVE_STDLIB_H
|
|
# include <stdlib.h>
|
|
# endif
|
|
#endif /* STDC_HEADERS */
|
|
#ifdef HAVE_STRING_H
|
|
# if defined(HAVE_MEMORY_H) && !defined(STDC_HEADERS)
|
|
# include <memory.h>
|
|
# endif
|
|
# include <string.h>
|
|
#endif /* HAVE_STRING_H */
|
|
#ifdef HAVE_STRINGS_H
|
|
# include <strings.h>
|
|
#endif /* HAVE_STRINGS_H */
|
|
#ifdef HAVE_UNISTD_H
|
|
# include <unistd.h>
|
|
#endif /* HAVE_UNISTD_H */
|
|
#include <errno.h>
|
|
|
|
#include "sudo.h"
|
|
#include "sudo_plugin.h"
|
|
|
|
extern int tgetpass_flags; /* XXX */
|
|
|
|
/*
|
|
* Sudo conversation function.
|
|
*/
|
|
int
|
|
sudo_conversation(int num_msgs, const struct sudo_conv_message msgs[],
|
|
struct sudo_conv_reply replies[])
|
|
{
|
|
struct sudo_conv_reply *repl;
|
|
const struct sudo_conv_message *msg;
|
|
char *pass;
|
|
int n, flags = tgetpass_flags;
|
|
|
|
for (n = 0; n < num_msgs; n++) {
|
|
msg = &msgs[n];
|
|
repl = &replies[n];
|
|
switch (msg->msg_type & 0xff) {
|
|
case SUDO_CONV_PROMPT_ECHO_ON:
|
|
case SUDO_CONV_PROMPT_MASK:
|
|
if (msg->msg_type == SUDO_CONV_PROMPT_ECHO_ON)
|
|
SET(flags, TGP_ECHO);
|
|
else
|
|
SET(flags, TGP_MASK);
|
|
/* FALLTHROUGH */
|
|
case SUDO_CONV_PROMPT_ECHO_OFF:
|
|
if (ISSET(msg->msg_type, SUDO_CONV_PROMPT_ECHO_OK))
|
|
SET(flags, TGP_NOECHO_TRY);
|
|
/* Read the password unless interrupted. */
|
|
pass = tgetpass(msg->msg, msg->timeout, flags);
|
|
if (pass == NULL)
|
|
goto err;
|
|
repl->reply = estrdup(pass);
|
|
zero_bytes(pass, strlen(pass));
|
|
break;
|
|
case SUDO_CONV_INFO_MSG:
|
|
if (msg->msg)
|
|
(void) fputs(msg->msg, stdout);
|
|
break;
|
|
case SUDO_CONV_ERROR_MSG:
|
|
if (msg->msg)
|
|
(void) fputs(msg->msg, stderr);
|
|
break;
|
|
default:
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
err:
|
|
/* Zero and free allocated memory and return an error. */
|
|
do {
|
|
repl = &replies[n];
|
|
if (repl->reply != NULL) {
|
|
zero_bytes(repl->reply, strlen(repl->reply));
|
|
free(repl->reply);
|
|
repl->reply = NULL;
|
|
}
|
|
} while (n--);
|
|
|
|
return -1;
|
|
}
|
|
|
|
int
|
|
_sudo_printf(int msg_type, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
FILE *fp;
|
|
int len;
|
|
|
|
switch (msg_type) {
|
|
case SUDO_CONV_INFO_MSG:
|
|
fp = stdout;
|
|
break;
|
|
case SUDO_CONV_ERROR_MSG:
|
|
fp = stderr;
|
|
break;
|
|
default:
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
|
|
va_start(ap, fmt);
|
|
len = vfprintf(fp, fmt, ap);
|
|
va_end(ap);
|
|
|
|
return len;
|
|
}
|