mirror of
https://github.com/troglobit/finit.git
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Joachim Nilsson
f902505b5d
When building a static Finit the plugins do not get a unique name automatically from the file. This led to only the first plugin being loaded, since its name was 'unknown' it was registered as such and all other plugins conflicted, since 'unknown' was already ... known and loaded. This patch gives all plugins a default name, __FILE__, making it possible to use all of them when building a static Finit. Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
/* Optional TTY Watcher, used to catch new TTYs that are discovered, e.g., USB
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*
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* Copyright (c) 2013 Mattias Walström <lazzer@gmail.com>
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* Copyright (c) 2013 Joachim Nilsson <troglobit@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <errno.h>
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#include <fcntl.h> /* O_RDONLY et al */
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#include <unistd.h> /* read() */
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#include <sys/inotify.h>
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#include <sys/stat.h>
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#include "../finit.h"
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#include "../helpers.h"
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#include "../plugin.h"
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#include "../tty.h"
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#include "libite/lite.h"
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static void watcher(void *arg, int fd, int events);
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static plugin_t plugin = {
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.name = __FILE__,
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.io = {
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.cb = watcher,
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.flags = PLUGIN_IO_READ,
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},
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};
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static void setup(void)
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{
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plugin.io.fd = inotify_init1(IN_NONBLOCK);
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if (-1 == plugin.io.fd || inotify_add_watch(plugin.io.fd, "/dev", IN_CREATE | IN_DELETE) < 0)
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_e("Failed starting TTY watcher: %s", strerror(errno));
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}
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static void watcher(void *UNUSED(arg), int fd, int UNUSED(events))
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{
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int len = 0;
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char buf[EVENT_SIZE], name[42];
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tty_node_t *entry;
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struct inotify_event *notified = (struct inotify_event *)buf;
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while ((len = read(fd, buf, sizeof(buf)))) {
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if (-1 == len) {
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if (errno == EINTR)
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continue;
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break;
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}
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snprintf(name, sizeof(name), "/dev/%s", notified->name);
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entry = tty_find(name);
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if (entry && tty_enabled(&entry->data, runlevel)) {
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if (notified->mask & IN_CREATE)
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tty_start(&entry->data);
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else if (entry->data.pid)
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tty_stop(&entry->data);
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}
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}
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}
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PLUGIN_INIT(plugin_init)
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{
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setup();
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plugin_register(&plugin);
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}
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PLUGIN_EXIT(plugin_exit)
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{
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plugin_unregister(&plugin);
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}
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/**
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* Local Variables:
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* version-control: t
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* indent-tabs-mode: t
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* c-file-style: "linux"
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* End:
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*/
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