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author | Igor Pashev <pashev.igor@gmail.com> | 2023-01-06 10:02:49 +0200 |
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committer | Igor Pashev <pashev.igor@gmail.com> | 2023-01-06 10:04:59 +0200 |
commit | 1145733c29db0a678537ce99ff60e21613f622a8 (patch) | |
tree | 63d5d6c324629d4eef1354db3c97f857d6016a34 /backend/net-obj.c | |
download | iscan-1145733c29db0a678537ce99ff60e21613f622a8.tar.gz |
Import iscan 2.30.4-2
Diffstat (limited to 'backend/net-obj.c')
-rw-r--r-- | backend/net-obj.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/backend/net-obj.c b/backend/net-obj.c new file mode 100644 index 0000000..d5ee958 --- /dev/null +++ b/backend/net-obj.c @@ -0,0 +1,123 @@ +/* net-obj.c -- + * Copyright (C) 2008, 2009 SEIKO EPSON CORPORATION + * + * License: GPLv2+|iscan + * Authors: AVASYS CORPORATION + * + * This file is part of the SANE backend distributed with Image Scan! + * + * Image Scan!'s SANE backend 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. + * + * This program 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 ought to have received a copy of the GNU General Public License + * along with this package. If not, see <http://www.gnu.org/licenses/>. + * + * + * Linking Image Scan!'s SANE backend statically or dynamically with + * other modules is making a combined work based on this SANE backend. + * Thus, the terms and conditions of the GNU General Public License + * cover the whole combination. + * + * As a special exception, the copyright holders of Image Scan!'s SANE + * backend give you permission to link Image Scan!'s SANE backend with + * SANE frontends that communicate with Image Scan!'s SANE backend + * solely through the SANE Application Programming Interface, + * regardless of the license terms of these SANE frontends, and to + * copy and distribute the resulting combined work under terms of your + * choice, provided that every copy of the combined work is + * accompanied by a complete copy of the source code of Image Scan!'s + * SANE backend (the version of Image Scan!'s SANE backend used to + * produce the combined work), being distributed under the terms of + * the GNU General Public License plus this exception. An independent + * module is a module which is not derived from or based on Image + * Scan!'s SANE backend. + * + * As a special exception, the copyright holders of Image Scan!'s SANE + * backend give you permission to link Image Scan!'s SANE backend with + * independent modules that communicate with Image Scan!'s SANE + * backend solely through the "Interpreter" interface, regardless of + * the license terms of these independent modules, and to copy and + * distribute the resulting combined work under terms of your choice, + * provided that every copy of the combined work is accompanied by a + * complete copy of the source code of Image Scan!'s SANE backend (the + * version of Image Scan!'s SANE backend used to produce the combined + * work), being distributed under the terms of the GNU General Public + * License plus this exception. An independent module is a module + * which is not derived from or based on Image Scan!'s SANE backend. + * + * Note that people who make modified versions of Image Scan!'s SANE + * backend are not obligated to grant special exceptions for their + * modified versions; it is their choice whether to do so. The GNU + * General Public License gives permission to release a modified + * version without this exception; this exception also makes it + * possible to release a modified version which carries forward this + * exception. + */ + + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "net-obj.h" + +#include "defines.h" +#include "ipc.h" +#include "message.h" + +const char *net_prog_name = "network"; + +static process *net = NULL; + +void * +net_init (const char *pkglibdir, SANE_Status *status) +{ + log_call ("(%s, %p)", pkglibdir, status); + + if (net) + { + err_minor ("been here, done that"); + if (status) *status = SANE_STATUS_GOOD; + return net; + } + + if (!pkglibdir) return NULL; + + net = ipc_exec (net_prog_name, pkglibdir, status); + + return net; +} + +void * +net_exit (void *self) +{ + log_call ("(%p)", self); + require (net == self); + + if (net) + { + net = ipc_kill (net); + promise (!net); + } + + return net; +} + +/*! Obtain the socket connected to the network plugin + */ +int +net_get_sock (void *self) +{ + log_call ("(%p)", self); + require (net == self); + + if (net) return net->socket; + return -1; +} |