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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:14:06 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:14:06 +0000 |
commit | eee068778cb28ecf3c14e1bf843a95547d72c42d (patch) | |
tree | 0e07b30ddc5ea579d682d5dbe57998200d1c9ab7 /sm/passphrase.c | |
parent | Initial commit. (diff) | |
download | gnupg2-eee068778cb28ecf3c14e1bf843a95547d72c42d.tar.xz gnupg2-eee068778cb28ecf3c14e1bf843a95547d72c42d.zip |
Adding upstream version 2.2.40.upstream/2.2.40upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | sm/passphrase.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/sm/passphrase.c b/sm/passphrase.c new file mode 100644 index 0000000..09eac07 --- /dev/null +++ b/sm/passphrase.c @@ -0,0 +1,90 @@ +/* passphrase.c - Get a passphrase + * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, + * 2005, 2006, 2007, 2009, 2011 Free Software Foundation, Inc. + * + * This file is part of GnuPG. + * + * GnuPG is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * GnuPG is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses/>. + */ + +#include <config.h> +#include <unistd.h> + +#include "passphrase.h" +#include "gpgsm.h" +#include "../common/shareddefs.h" +#include "../common/ttyio.h" + +static char *fd_passwd = NULL; + +int +have_static_passphrase () +{ + return (!!fd_passwd + && (opt.batch || opt.pinentry_mode == PINENTRY_MODE_LOOPBACK)); +} + +/* Return a static passphrase. The returned value is only valid as + long as no other passphrase related function is called. NULL may + be returned if no passphrase has been set; better use + have_static_passphrase first. */ +const char * +get_static_passphrase (void) +{ + return fd_passwd; +} + +void +read_passphrase_from_fd (int fd) +{ + int i, len; + char *pw; + + if (!opt.batch && opt.pinentry_mode != PINENTRY_MODE_LOOPBACK) + { /* Not used but we have to do a dummy read, so that it won't end + up at the begin of the message if the quite usual trick to + prepend the passphtrase to the message is used. */ + char buf[1]; + + while (!(read (fd, buf, 1) != 1 || *buf == '\n')) + ; + *buf = 0; + return; + } + + for (pw = NULL, i = len = 100; ; i++) + { + if (i >= len-1) + { + char *pw2 = pw; + len += 100; + pw = xmalloc_secure (len); + if (pw2) + { + memcpy (pw, pw2, i); + xfree (pw2); + } + else + i = 0; + } + if (read (fd, pw+i, 1) != 1 || pw[i] == '\n') + break; + } + pw[i] = 0; + if (!opt.batch && opt.pinentry_mode != PINENTRY_MODE_LOOPBACK) + tty_printf("\b\b\b \n" ); + + xfree (fd_passwd); + fd_passwd = pw; +} |