b96dc99996
The xnfcalloc() macro took two arguments but simply multiplied them together without checking for overflow and defeating any overflow checking that calloc() might have done. Let's not do that. The original XNFcalloc() function is left for now to preserve driver ABI, but is marked as deprecated so it can be removed in a future round of ABI break/cleanup. Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Matt Turner <mattst88@gmail.com>
150 lines
4.0 KiB
C
150 lines
4.0 KiB
C
/*
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* Copyright © 2006-2007 Daniel Stone
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is 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 (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* 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
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* THE 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
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Author: Daniel Stone <daniel@fooishbar.org>
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <unistd.h>
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#include "os.h"
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#include "inputstr.h"
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#include "hotplug.h"
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#include "config-backends.h"
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#include "systemd-logind.h"
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void
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config_pre_init(void)
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{
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#ifdef CONFIG_UDEV
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if (!config_udev_pre_init())
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ErrorF("[config] failed to pre-init udev\n");
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#endif
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}
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void
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config_init(void)
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{
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#ifdef CONFIG_UDEV
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if (!config_udev_init())
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ErrorF("[config] failed to initialise udev\n");
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#elif defined(CONFIG_HAL)
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if (!config_hal_init())
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ErrorF("[config] failed to initialise HAL\n");
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#elif defined(CONFIG_WSCONS)
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if (!config_wscons_init())
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ErrorF("[config] failed to initialise wscons\n");
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#endif
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}
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void
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config_fini(void)
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{
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#if defined(CONFIG_UDEV)
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config_udev_fini();
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#elif defined(CONFIG_HAL)
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config_hal_fini();
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#elif defined(CONFIG_WSCONS)
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config_wscons_fini();
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#endif
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}
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void
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config_odev_probe(config_odev_probe_proc_ptr probe_callback)
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{
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#if defined(CONFIG_UDEV_KMS)
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config_udev_odev_probe(probe_callback);
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#endif
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}
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static void
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remove_device(const char *backend, DeviceIntPtr dev)
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{
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/* this only gets called for devices that have already been added */
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LogMessage(X_INFO, "config/%s: removing device %s\n", backend, dev->name);
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/* Call PIE here so we don't try to dereference a device that's
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* already been removed. */
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OsBlockSignals();
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ProcessInputEvents();
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DeleteInputDeviceRequest(dev);
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OsReleaseSignals();
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}
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void
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remove_devices(const char *backend, const char *config_info)
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{
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DeviceIntPtr dev, next;
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for (dev = inputInfo.devices; dev; dev = next) {
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next = dev->next;
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if (dev->config_info && strcmp(dev->config_info, config_info) == 0)
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remove_device(backend, dev);
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}
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for (dev = inputInfo.off_devices; dev; dev = next) {
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next = dev->next;
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if (dev->config_info && strcmp(dev->config_info, config_info) == 0)
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remove_device(backend, dev);
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}
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}
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BOOL
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device_is_duplicate(const char *config_info)
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{
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DeviceIntPtr dev;
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for (dev = inputInfo.devices; dev; dev = dev->next) {
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if (dev->config_info && (strcmp(dev->config_info, config_info) == 0))
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return TRUE;
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}
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for (dev = inputInfo.off_devices; dev; dev = dev->next) {
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if (dev->config_info && (strcmp(dev->config_info, config_info) == 0))
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return TRUE;
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}
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return FALSE;
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}
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struct OdevAttributes *
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config_odev_allocate_attributes(void)
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{
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struct OdevAttributes *attribs =
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xnfcalloc(1, sizeof (struct OdevAttributes));
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attribs->fd = -1;
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return attribs;
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}
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void
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config_odev_free_attributes(struct OdevAttributes *attribs)
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{
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if (attribs->fd != -1)
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systemd_logind_release_fd(attribs->major, attribs->minor, attribs->fd);
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free(attribs->path);
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free(attribs->syspath);
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free(attribs->busid);
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free(attribs->driver);
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free(attribs);
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}
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