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Diffstat (limited to '')
| -rw-r--r-- | common/asshelp.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/common/asshelp.c b/common/asshelp.c new file mode 100644 index 000000000..1da899522 --- /dev/null +++ b/common/asshelp.c @@ -0,0 +1,169 @@ +/* asshelp.c - Helper functions for Assuan + * Copyright (C) 2002, 2004 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 2 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, + * USA. + */ + +#include <config.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <errno.h> +#ifdef HAVE_LOCALE_H +#include <locale.h> +#endif + +#include "util.h" + +#include "asshelp.h" + + +static gpg_error_t +send_one_option (assuan_context_t ctx, gpg_err_source_t errsource, + const char *name, const char *value) +{ + gpg_error_t err; + char *optstr; + + if (!value || !*value) + err = 0; /* Avoid sending empty strings. */ + else if (asprintf (&optstr, "OPTION %s=%s", name, value ) < 0) + err = gpg_error_from_errno (errno); + else + { + assuan_error_t ae; + + ae = assuan_transact (ctx, optstr, NULL, NULL, NULL, NULL, NULL, NULL); + err = ae? map_assuan_err_with_source (errsource, ae) : 0; + free (optstr); + } + + return err; +} + + +/* Send the assuan commands pertaining to the pinenry environment. The + OPT_* arguments are optional and may be used to override the + defaults taken from the current locale. */ +gpg_error_t +send_pinentry_environment (assuan_context_t ctx, + gpg_err_source_t errsource, + const char *opt_display, + const char *opt_ttyname, + const char *opt_ttytype, + const char *opt_lc_ctype, + const char *opt_lc_messages) +{ + gpg_error_t err = 0; + char *dft_display = NULL; + char *dft_ttyname = NULL; + char *dft_ttytype = NULL; + char *old_lc = NULL; + char *dft_lc = NULL; + + /* Send the DISPLAY variable. */ + dft_display = getenv ("DISPLAY"); + if (opt_display || dft_display) + { + err = send_one_option (ctx, errsource, "display", + opt_display ? opt_display : dft_display); + if (err) + return err; + } + + /* Send the name of the TTY. */ + if (!opt_ttyname) + { + dft_ttyname = getenv ("GPG_TTY"); + if ((!dft_ttyname || !*dft_ttyname) && ttyname (0)) + dft_ttyname = ttyname (0); + } + if (opt_ttyname || dft_ttyname) + { + err = send_one_option (ctx, errsource, "ttyname", + opt_ttyname ? opt_ttyname : dft_ttyname); + if (err) + return err; + } + + /* Send the type of the TTY. */ + dft_ttytype = getenv ("TERM"); + if (opt_ttytype || (dft_ttyname && dft_ttytype)) + { + err = send_one_option (ctx, errsource, "ttytype", + opt_ttyname ? opt_ttytype : dft_ttytype); + if (err) + return err; + } + + /* Send the value for LC_CTYPE. */ +#if defined(HAVE_SETLOCALE) && defined(LC_CTYPE) + old_lc = setlocale (LC_CTYPE, NULL); + if (old_lc) + { + old_lc = strdup (old_lc); + if (!old_lc) + return gpg_error_from_errno (errno); + } + dft_lc = setlocale (LC_CTYPE, ""); +#endif + if (opt_lc_ctype || (dft_ttyname && dft_lc)) + { + err = send_one_option (ctx, errsource, "lc-ctype", + opt_lc_ctype ? opt_lc_ctype : dft_lc); + } +#if defined(HAVE_SETLOCALE) && defined(LC_CTYPE) + if (old_lc) + { + setlocale (LC_CTYPE, old_lc); + free (old_lc); + } +#endif + if (err) + return err; + + /* Send the value for LC_MESSAGES. */ +#if defined(HAVE_SETLOCALE) && defined(LC_MESSAGES) + old_lc = setlocale (LC_MESSAGES, NULL); + if (old_lc) + { + old_lc = strdup (old_lc); + if (!old_lc) + return gpg_error_from_errno (errno); + } + dft_lc = setlocale (LC_MESSAGES, ""); +#endif + if (opt_lc_messages || (dft_ttyname && dft_lc)) + { + err = send_one_option (ctx, errsource, "lc-messages", + opt_lc_messages ? opt_lc_messages : dft_lc); + } +#if defined(HAVE_SETLOCALE) && defined(LC_MESSAGES) + if (old_lc) + { + setlocale (LC_MESSAGES, old_lc); + free (old_lc); + } +#endif + if (err) + return err; + + return 0; +} + |