diff options
Diffstat (limited to 'archivers/libarchive/files/libarchive_fe/passphrase.c')
| -rw-r--r-- | archivers/libarchive/files/libarchive_fe/passphrase.c | 95 |
1 files changed, 51 insertions, 44 deletions
diff --git a/archivers/libarchive/files/libarchive_fe/passphrase.c b/archivers/libarchive/files/libarchive_fe/passphrase.c index 8c38ad77782..edf72d14718 100644 --- a/archivers/libarchive/files/libarchive_fe/passphrase.c +++ b/archivers/libarchive/files/libarchive_fe/passphrase.c @@ -23,9 +23,11 @@ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -/* $OpenBSD: readpassphrase.c,v 1.22 2010/01/13 10:20:54 dtucker Exp $ */ +/* $OpenBSD: readpassphrase.c,v 1.27 2019/01/25 00:19:25 millert Exp $ */ + /* - * Copyright (c) 2000-2002, 2007 Todd C. Miller <Todd.Miller@courtesan.com> + * Copyright (c) 2000-2002, 2007, 2010 + * Todd C. Miller <millert@openbsd.org> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -199,6 +201,27 @@ restart: } /* + * Turn off echo if possible. + * If we are using a tty but are not the foreground pgrp this will + * generate SIGTTOU, so do it *before* installing the signal handlers. + */ + if (input != STDIN_FILENO && tcgetattr(input, &oterm) == 0) { + memcpy(&term, &oterm, sizeof(term)); + if (!(flags & RPP_ECHO_ON)) + term.c_lflag &= ~(ECHO | ECHONL); +#ifdef VSTATUS + if (term.c_cc[VSTATUS] != _POSIX_VDISABLE) + term.c_cc[VSTATUS] = _POSIX_VDISABLE; +#endif + (void)tcsetattr(input, _T_FLUSH, &term); + } else { + memset(&term, 0, sizeof(term)); + term.c_lflag |= ECHO; + memset(&oterm, 0, sizeof(oterm)); + oterm.c_lflag |= ECHO; + } + + /* * Catch signals that would otherwise cause the user to end * up with echo turned off in the shell. Don't worry about * things like SIGXCPU and SIGVTALRM for now. @@ -217,57 +240,41 @@ restart: (void)sigaction(SIGTTIN, &sa, &savettin); (void)sigaction(SIGTTOU, &sa, &savettou); - /* Turn off echo if possible. */ - if (input != STDIN_FILENO && tcgetattr(input, &oterm) == 0) { - memcpy(&term, &oterm, sizeof(term)); - if (!(flags & RPP_ECHO_ON)) - term.c_lflag &= ~(ECHO | ECHONL); -#ifdef VSTATUS - if (term.c_cc[VSTATUS] != _POSIX_VDISABLE) - term.c_cc[VSTATUS] = _POSIX_VDISABLE; -#endif - (void)tcsetattr(input, _T_FLUSH, &term); - } else { - memset(&term, 0, sizeof(term)); - term.c_lflag |= ECHO; - memset(&oterm, 0, sizeof(oterm)); - oterm.c_lflag |= ECHO; + if (!(flags & RPP_STDIN)) { + int r = write(output, prompt, strlen(prompt)); + (void)r; } - - /* No I/O if we are already backgrounded. */ - if (signo[SIGTTOU] != 1 && signo[SIGTTIN] != 1) { - if (!(flags & RPP_STDIN)) { - int r = write(output, prompt, strlen(prompt)); - (void)r; - } - end = buf + bufsiz - 1; - p = buf; - while ((nr = read(input, &ch, 1)) == 1 && ch != '\n' && ch != '\r') { - if (p < end) { - if ((flags & RPP_SEVENBIT)) - ch &= 0x7f; - if (isalpha((unsigned char)ch)) { - if ((flags & RPP_FORCELOWER)) - ch = (char)tolower((unsigned char)ch); - if ((flags & RPP_FORCEUPPER)) - ch = (char)toupper((unsigned char)ch); - } - *p++ = ch; + end = buf + bufsiz - 1; + p = buf; + while ((nr = read(input, &ch, 1)) == 1 && ch != '\n' && ch != '\r') { + if (p < end) { + if ((flags & RPP_SEVENBIT)) + ch &= 0x7f; + if (isalpha((unsigned char)ch)) { + if ((flags & RPP_FORCELOWER)) + ch = (char)tolower((unsigned char)ch); + if ((flags & RPP_FORCEUPPER)) + ch = (char)toupper((unsigned char)ch); } - } - *p = '\0'; - save_errno = errno; - if (!(term.c_lflag & ECHO)) { - int r = write(output, "\n", 1); - (void)r; + *p++ = ch; } } + *p = '\0'; + save_errno = errno; + if (!(term.c_lflag & ECHO)) { + int r = write(output, "\n", 1); + (void)r; + } /* Restore old terminal settings and signals. */ if (memcmp(&term, &oterm, sizeof(term)) != 0) { + const int sigttou = signo[SIGTTOU]; + + /* Ignore SIGTTOU generated when we are not the fg pgrp. */ while (tcsetattr(input, _T_FLUSH, &oterm) == -1 && - errno == EINTR) + errno == EINTR && !signo[SIGTTOU]) continue; + signo[SIGTTOU] = sigttou; } (void)sigaction(SIGALRM, &savealrm, NULL); (void)sigaction(SIGHUP, &savehup, NULL); |