diff options
Diffstat (limited to 'lib/libc/gen/readpassphrase.c')
| -rw-r--r-- | lib/libc/gen/readpassphrase.c | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/lib/libc/gen/readpassphrase.c b/lib/libc/gen/readpassphrase.c deleted file mode 100644 index 983e01d893068..0000000000000 --- a/lib/libc/gen/readpassphrase.c +++ /dev/null @@ -1,178 +0,0 @@ -/* $OpenBSD: readpassphrase.c,v 1.12 2001/12/15 05:41:00 millert Exp $ */ - -/* - * Copyright (c) 2000 Todd C. Miller <Todd.Miller@courtesan.com> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static const char rcsid[] = "$OpenBSD: readpassphrase.c,v 1.12 2001/12/15 05:41:00 millert Exp $"; -#endif /* LIBC_SCCS and not lint */ -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "namespace.h" -#include <ctype.h> -#include <errno.h> -#include <fcntl.h> -#include <paths.h> -#include <pwd.h> -#include <signal.h> -#include <string.h> -#include <termios.h> -#include <unistd.h> -#include <readpassphrase.h> -#include "un-namespace.h" - -static volatile sig_atomic_t signo; - -static void handler(int); - -char * -readpassphrase(const char *prompt, char *buf, size_t bufsiz, int flags) -{ - ssize_t nr; - int input, output, save_errno; - char ch, *p, *end; - struct termios term, oterm; - struct sigaction sa, saveint, savehup, savequit, saveterm; - struct sigaction savetstp, savettin, savettou; - - /* I suppose we could alloc on demand in this case (XXX). */ - if (bufsiz == 0) { - errno = EINVAL; - return(NULL); - } - -restart: - /* - * Read and write to /dev/tty if available. If not, read from - * stdin and write to stderr unless a tty is required. - */ - if ((input = output = _open(_PATH_TTY, O_RDWR)) == -1) { - if (flags & RPP_REQUIRE_TTY) { - errno = ENOTTY; - return(NULL); - } - input = STDIN_FILENO; - output = STDERR_FILENO; - } - - /* - * Catch signals that would otherwise cause the user to end - * up with echo turned off in the shell. Don't worry about - * things like SIGALRM and SIGPIPE for now. - */ - sigemptyset(&sa.sa_mask); - sa.sa_flags = 0; /* don't restart system calls */ - sa.sa_handler = handler; - (void)_sigaction(SIGINT, &sa, &saveint); - (void)_sigaction(SIGHUP, &sa, &savehup); - (void)_sigaction(SIGQUIT, &sa, &savequit); - (void)_sigaction(SIGTERM, &sa, &saveterm); - (void)_sigaction(SIGTSTP, &sa, &savetstp); - (void)_sigaction(SIGTTIN, &sa, &savettin); - (void)_sigaction(SIGTTOU, &sa, &savettou); - - /* Turn off echo if possible. */ - if (tcgetattr(input, &oterm) == 0) { - memcpy(&term, &oterm, sizeof(term)); - if (!(flags & RPP_ECHO_ON)) - term.c_lflag &= ~(ECHO | ECHONL); - if (term.c_cc[VSTATUS] != _POSIX_VDISABLE) - term.c_cc[VSTATUS] = _POSIX_VDISABLE; - (void)tcsetattr(input, TCSAFLUSH|TCSASOFT, &term); - } else { - memset(&term, 0, sizeof(term)); - memset(&oterm, 0, sizeof(oterm)); - } - - (void)_write(output, prompt, strlen(prompt)); - end = buf + bufsiz - 1; - for (p = buf; (nr = _read(input, &ch, 1)) == 1 && ch != '\n' && ch != '\r';) { - if (p < end) { - if ((flags & RPP_SEVENBIT)) - ch &= 0x7f; - if (isalpha(ch)) { - if ((flags & RPP_FORCELOWER)) - ch = tolower(ch); - if ((flags & RPP_FORCEUPPER)) - ch = toupper(ch); - } - *p++ = ch; - } - } - *p = '\0'; - save_errno = errno; - if (!(term.c_lflag & ECHO)) - (void)_write(output, "\n", 1); - - /* Restore old terminal settings and signals. */ - if (memcmp(&term, &oterm, sizeof(term)) != 0) - (void)tcsetattr(input, TCSANOW|TCSASOFT, &oterm); - (void)_sigaction(SIGINT, &saveint, NULL); - (void)_sigaction(SIGHUP, &savehup, NULL); - (void)_sigaction(SIGQUIT, &savequit, NULL); - (void)_sigaction(SIGTERM, &saveterm, NULL); - (void)_sigaction(SIGTSTP, &savetstp, NULL); - (void)_sigaction(SIGTTIN, &savettin, NULL); - (void)_sigaction(SIGTTOU, &savettou, NULL); - if (input != STDIN_FILENO) - (void)_close(input); - - /* - * If we were interrupted by a signal, resend it to ourselves - * now that we have restored the signal handlers. - */ - if (signo) { - kill(getpid(), signo); - switch (signo) { - case SIGTSTP: - case SIGTTIN: - case SIGTTOU: - signo = 0; - goto restart; - } - } - - errno = save_errno; - return(nr == -1 ? NULL : buf); -} - -char * -getpass(const char *prompt) -{ - static char buf[_PASSWORD_LEN + 1]; - - if (readpassphrase(prompt, buf, sizeof(buf), RPP_ECHO_OFF) == NULL) - buf[0] = '\0'; - return(buf); -} - -static void handler(int s) -{ - - signo = s; -} |