30fe4a067c
Set adminstrative domain for the process when looking up user's
password or group info and when preparing for execve().
Include strings.h even if string.h exists since they may define
different things. Fixes warnings on AIX and others.
139 lines
3.3 KiB
C
139 lines
3.3 KiB
C
/*
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* Copyright (c) 1999-2005, 2007-2010 Todd C. Miller <Todd.Miller@courtesan.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Sponsored in part by the Defense Advanced Research Projects
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* Agency (DARPA) and Air Force Research Laboratory, Air Force
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* Materiel Command, USAF, under agreement number F39502-99-1-0512.
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*/
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#include <config.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <stdio.h>
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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# include <stddef.h>
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#else
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# ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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# endif
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#endif /* STDC_HEADERS */
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#ifdef HAVE_STRING_H
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# if defined(HAVE_MEMORY_H) && !defined(STDC_HEADERS)
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# include <memory.h>
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# endif
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# include <string.h>
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#endif /* HAVE_STRING_H */
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif /* HAVE_STRINGS_H */
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif /* HAVE_UNISTD_H */
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#include <errno.h>
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#include "sudo.h"
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#include "sudo_plugin.h"
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extern int tgetpass_flags; /* XXX */
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/*
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* Sudo conversation function.
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*/
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int
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sudo_conversation(int num_msgs, const struct sudo_conv_message msgs[],
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struct sudo_conv_reply replies[])
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{
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struct sudo_conv_reply *repl;
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const struct sudo_conv_message *msg;
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char *pass;
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int n, flags = tgetpass_flags;
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for (n = 0; n < num_msgs; n++) {
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msg = &msgs[n];
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repl = &replies[n];
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switch (msg->msg_type & 0xff) {
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case SUDO_CONV_PROMPT_ECHO_ON:
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case SUDO_CONV_PROMPT_MASK:
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if (msg->msg_type == SUDO_CONV_PROMPT_ECHO_ON)
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SET(flags, TGP_ECHO);
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else
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SET(flags, TGP_MASK);
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/* FALLTHROUGH */
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case SUDO_CONV_PROMPT_ECHO_OFF:
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if (ISSET(msg->msg_type, SUDO_CONV_PROMPT_ECHO_OK))
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SET(flags, TGP_NOECHO_TRY);
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/* Read the password unless interrupted. */
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pass = tgetpass(msg->msg, msg->timeout, flags);
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if (pass == NULL)
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goto err;
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repl->reply = estrdup(pass);
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zero_bytes(pass, strlen(pass));
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break;
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case SUDO_CONV_INFO_MSG:
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if (msg->msg)
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(void) fputs(msg->msg, stdout);
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break;
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case SUDO_CONV_ERROR_MSG:
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if (msg->msg)
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(void) fputs(msg->msg, stderr);
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break;
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default:
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goto err;
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}
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}
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return 0;
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err:
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/* Zero and free allocated memory and return an error. */
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do {
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repl = &replies[n];
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if (repl->reply != NULL) {
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zero_bytes(repl->reply, strlen(repl->reply));
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free(repl->reply);
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repl->reply = NULL;
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}
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} while (n--);
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return -1;
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}
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int
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_sudo_printf(int msg_type, const char *fmt, ...)
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{
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va_list ap;
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FILE *fp;
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switch (msg_type) {
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case SUDO_CONV_INFO_MSG:
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fp = stdout;
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break;
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case SUDO_CONV_ERROR_MSG:
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fp = stderr;
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break;
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default:
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errno = EINVAL;
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return -1;
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}
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va_start(ap, fmt);
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vfprintf(fp, fmt, ap);
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va_end(ap);
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return 0;
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}
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