-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
#include "libudev.h"
+#include "fd-util.h"
+#include "log.h"
+#include "stdio-util.h"
#include "string-util.h"
#include "udev-util.h"
#include "util.h"
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-
static void print_device(struct udev_device *device) {
const char *str;
dev_t devnum;
int count;
struct udev_list_entry *list_entry;
- printf("*** device: %p ***\n", device);
+ log_info("*** device: %p ***", device);
str = udev_device_get_action(device);
if (str != NULL)
- printf("action: '%s'\n", str);
+ log_info("action: '%s'", str);
str = udev_device_get_syspath(device);
- printf("syspath: '%s'\n", str);
+ log_info("syspath: '%s'", str);
str = udev_device_get_sysname(device);
- printf("sysname: '%s'\n", str);
+ log_info("sysname: '%s'", str);
str = udev_device_get_sysnum(device);
if (str != NULL)
- printf("sysnum: '%s'\n", str);
+ log_info("sysnum: '%s'", str);
str = udev_device_get_devpath(device);
- printf("devpath: '%s'\n", str);
+ log_info("devpath: '%s'", str);
str = udev_device_get_subsystem(device);
if (str != NULL)
- printf("subsystem: '%s'\n", str);
+ log_info("subsystem: '%s'", str);
str = udev_device_get_devtype(device);
if (str != NULL)
- printf("devtype: '%s'\n", str);
+ log_info("devtype: '%s'", str);
str = udev_device_get_driver(device);
if (str != NULL)
- printf("driver: '%s'\n", str);
+ log_info("driver: '%s'", str);
str = udev_device_get_devnode(device);
if (str != NULL)
- printf("devname: '%s'\n", str);
+ log_info("devname: '%s'", str);
devnum = udev_device_get_devnum(device);
if (major(devnum) > 0)
- printf("devnum: %u:%u\n", major(devnum), minor(devnum));
+ log_info("devnum: %u:%u", major(devnum), minor(devnum));
count = 0;
udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(device)) {
- printf("link: '%s'\n", udev_list_entry_get_name(list_entry));
+ log_info("link: '%s'", udev_list_entry_get_name(list_entry));
count++;
}
if (count > 0)
- printf("found %i links\n", count);
+ log_info("found %i links", count);
count = 0;
udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(device)) {
- printf("property: '%s=%s'\n",
+ log_info("property: '%s=%s'",
udev_list_entry_get_name(list_entry),
udev_list_entry_get_value(list_entry));
count++;
}
if (count > 0)
- printf("found %i properties\n", count);
+ log_info("found %i properties", count);
str = udev_device_get_property_value(device, "MAJOR");
if (str != NULL)
- printf("MAJOR: '%s'\n", str);
+ log_info("MAJOR: '%s'", str);
str = udev_device_get_sysattr_value(device, "dev");
if (str != NULL)
- printf("attr{dev}: '%s'\n", str);
-
- printf("\n");
+ log_info("attr{dev}: '%s'", str);
}
-static int test_device(struct udev *udev, const char *syspath) {
+static void test_device(struct udev *udev, const char *syspath) {
_cleanup_udev_device_unref_ struct udev_device *device;
- printf("looking at device: %s\n", syspath);
+ log_info("looking at device: %s", syspath);
device = udev_device_new_from_syspath(udev, syspath);
- if (device == NULL) {
- printf("no device found\n");
- return -1;
- }
- print_device(device);
-
- return 0;
+ if (device == NULL)
+ log_warning_errno(errno, "udev_device_new_from_syspath: %m");
+ else
+ print_device(device);
}
-static int test_device_parents(struct udev *udev, const char *syspath) {
+static void test_device_parents(struct udev *udev, const char *syspath) {
_cleanup_udev_device_unref_ struct udev_device *device;
struct udev_device *device_parent;
- printf("looking at device: %s\n", syspath);
+ log_info("looking at device: %s", syspath);
device = udev_device_new_from_syspath(udev, syspath);
if (device == NULL)
- return -1;
+ return;
- printf("looking at parents\n");
+ log_info("looking at parents");
device_parent = device;
do {
print_device(device_parent);
device_parent = udev_device_get_parent(device_parent);
} while (device_parent != NULL);
- printf("looking at parents again\n");
+ log_info("looking at parents again");
device_parent = device;
do {
print_device(device_parent);
device_parent = udev_device_get_parent(device_parent);
} while (device_parent != NULL);
-
- return 0;
}
-static int test_device_devnum(struct udev *udev) {
+static void test_device_devnum(struct udev *udev) {
dev_t devnum = makedev(1, 3);
- struct udev_device *device;
+ _cleanup_udev_device_unref_ struct udev_device *device;
- printf("looking up device: %u:%u\n", major(devnum), minor(devnum));
+ log_info("looking up device: %u:%u", major(devnum), minor(devnum));
device = udev_device_new_from_devnum(udev, 'c', devnum);
if (device == NULL)
- return -1;
- print_device(device);
- udev_device_unref(device);
- return 0;
+ log_warning_errno(errno, "udev_device_new_from_devnum: %m");
+ else
+ print_device(device);
}
-static int test_device_subsys_name(struct udev *udev) {
- struct udev_device *device;
-
- printf("looking up device: 'block':'sda'\n");
- device = udev_device_new_from_subsystem_sysname(udev, "block", "sda");
- if (device == NULL)
- return -1;
- print_device(device);
- udev_device_unref(device);
-
- printf("looking up device: 'subsystem':'pci'\n");
- device = udev_device_new_from_subsystem_sysname(udev, "subsystem", "pci");
- if (device == NULL)
- return -1;
- print_device(device);
- udev_device_unref(device);
-
- printf("looking up device: 'drivers':'scsi:sd'\n");
- device = udev_device_new_from_subsystem_sysname(udev, "drivers", "scsi:sd");
- if (device == NULL)
- return -1;
- print_device(device);
- udev_device_unref(device);
+static void test_device_subsys_name(struct udev *udev, const char *subsys, const char *dev) {
+ _cleanup_udev_device_unref_ struct udev_device *device;
- printf("looking up device: 'module':'printk'\n");
- device = udev_device_new_from_subsystem_sysname(udev, "module", "printk");
+ log_info("looking up device: '%s:%s'", subsys, dev);
+ device = udev_device_new_from_subsystem_sysname(udev, subsys, dev);
if (device == NULL)
- return -1;
- print_device(device);
- udev_device_unref(device);
- return 0;
+ log_warning_errno(errno, "udev_device_new_from_subsystem_sysname: %m");
+ else
+ print_device(device);
}
static int test_enumerate_print_list(struct udev_enumerate *enumerate) {
device = udev_device_new_from_syspath(udev_enumerate_get_udev(enumerate),
udev_list_entry_get_name(list_entry));
if (device != NULL) {
- printf("device: '%s' (%s)\n",
- udev_device_get_syspath(device),
- udev_device_get_subsystem(device));
+ log_info("device: '%s' (%s)",
+ udev_device_get_syspath(device),
+ udev_device_get_subsystem(device));
udev_device_unref(device);
count++;
}
}
- printf("found %i devices\n\n", count);
+ log_info("found %i devices", count);
return count;
}
-static int test_monitor(struct udev *udev) {
- struct udev_monitor *udev_monitor = NULL;
- int fd_ep;
- int fd_udev = -1;
- struct epoll_event ep_udev, ep_stdin;
+static void test_monitor(struct udev *udev) {
+ _cleanup_udev_monitor_unref_ struct udev_monitor *udev_monitor;
+ _cleanup_close_ int fd_ep;
+ int fd_udev;
+ struct epoll_event ep_udev = {
+ .events = EPOLLIN,
+ }, ep_stdin = {
+ .events = EPOLLIN,
+ .data.fd = STDIN_FILENO,
+ };
fd_ep = epoll_create1(EPOLL_CLOEXEC);
- if (fd_ep < 0) {
- printf("error creating epoll fd: %m\n");
- goto out;
- }
+ assert_se(fd_ep >= 0);
udev_monitor = udev_monitor_new_from_netlink(udev, "udev");
- if (udev_monitor == NULL) {
- printf("no socket\n");
- goto out;
- }
+ assert_se(udev_monitor != NULL);
+
fd_udev = udev_monitor_get_fd(udev_monitor);
+ ep_udev.data.fd = fd_udev;
- if (udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "block", NULL) < 0 ||
- udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "tty", NULL) < 0 ||
- udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "usb", "usb_device") < 0) {
- printf("filter failed\n");
- goto out;
- }
+ assert_se(udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "block", NULL) >= 0);
+ assert_se(udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "tty", NULL) >= 0);
+ assert_se(udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "usb", "usb_device") >= 0);
- if (udev_monitor_enable_receiving(udev_monitor) < 0) {
- printf("bind failed\n");
- goto out;
- }
+ assert_se(udev_monitor_enable_receiving(udev_monitor) >= 0);
- memzero(&ep_udev, sizeof(struct epoll_event));
- ep_udev.events = EPOLLIN;
- ep_udev.data.fd = fd_udev;
- if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_udev, &ep_udev) < 0) {
- printf("fail to add fd to epoll: %m\n");
- goto out;
- }
-
- memzero(&ep_stdin, sizeof(struct epoll_event));
- ep_stdin.events = EPOLLIN;
- ep_stdin.data.fd = STDIN_FILENO;
- if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, STDIN_FILENO, &ep_stdin) < 0) {
- printf("fail to add fd to epoll: %m\n");
- goto out;
- }
+ assert_se(epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_udev, &ep_udev) >= 0);
+ assert_se(epoll_ctl(fd_ep, EPOLL_CTL_ADD, STDIN_FILENO, &ep_stdin) >= 0);
for (;;) {
int fdcount;
int i;
printf("waiting for events from udev, press ENTER to exit\n");
- fdcount = epoll_wait(fd_ep, ev, ARRAY_SIZE(ev), -1);
+ fdcount = epoll_wait(fd_ep, ev, ELEMENTSOF(ev), -1);
printf("epoll fd count: %i\n", fdcount);
for (i = 0; i < fdcount; i++) {
udev_device_unref(device);
} else if (ev[i].data.fd == STDIN_FILENO && ev[i].events & EPOLLIN) {
printf("exiting loop\n");
- goto out;
+ return;
}
}
}
-out:
- if (fd_ep >= 0)
- close(fd_ep);
- udev_monitor_unref(udev_monitor);
- return 0;
}
-static int test_queue(struct udev *udev) {
+static void test_queue(struct udev *udev) {
struct udev_queue *udev_queue;
+ bool empty;
udev_queue = udev_queue_new(udev);
- if (udev_queue == NULL)
- return -1;
-
- if (udev_queue_get_queue_is_empty(udev_queue))
- printf("queue is empty\n");
+ assert_se(udev_queue);
+ empty = udev_queue_get_queue_is_empty(udev_queue);
+ log_info("queue is %s", empty ? "empty" : "not empty");
udev_queue_unref(udev_queue);
- return 0;
}
static int test_enumerate(struct udev *udev, const char *subsystem) {
struct udev_enumerate *udev_enumerate;
int r;
-
printf("enumerate '%s'\n", subsystem == NULL ? "<all>" : subsystem);
+
log_info("enumerate '%s'", subsystem == NULL ? "<all>" : subsystem);
udev_enumerate = udev_enumerate_new(udev);
if (udev_enumerate == NULL)
return -1;
test_enumerate_print_list(udev_enumerate);
udev_enumerate_unref(udev_enumerate);
- printf("enumerate 'net' + duplicated scan + null + zero\n");
+ log_info("enumerate 'net' + duplicated scan + null + zero");
udev_enumerate = udev_enumerate_new(udev);
if (udev_enumerate == NULL)
return -1;
test_enumerate_print_list(udev_enumerate);
udev_enumerate_unref(udev_enumerate);
- printf("enumerate 'block'\n");
+ log_info("enumerate 'block'");
udev_enumerate = udev_enumerate_new(udev);
if (udev_enumerate == NULL)
return -1;
test_enumerate_print_list(udev_enumerate);
udev_enumerate_unref(udev_enumerate);
- printf("enumerate 'not block'\n");
+ log_info("enumerate 'not block'");
udev_enumerate = udev_enumerate_new(udev);
if (udev_enumerate == NULL)
return -1;
test_enumerate_print_list(udev_enumerate);
udev_enumerate_unref(udev_enumerate);
- printf("enumerate 'pci, mem, vc'\n");
+ log_info("enumerate 'pci, mem, vc'");
udev_enumerate = udev_enumerate_new(udev);
if (udev_enumerate == NULL)
return -1;
test_enumerate_print_list(udev_enumerate);
udev_enumerate_unref(udev_enumerate);
- printf("enumerate 'subsystem'\n");
+ log_info("enumerate 'subsystem'");
udev_enumerate = udev_enumerate_new(udev);
if (udev_enumerate == NULL)
return -1;
test_enumerate_print_list(udev_enumerate);
udev_enumerate_unref(udev_enumerate);
- printf("enumerate 'property IF_FS_*=filesystem'\n");
+ log_info("enumerate 'property IF_FS_*=filesystem'");
udev_enumerate = udev_enumerate_new(udev);
if (udev_enumerate == NULL)
return -1;
hwdb = udev_hwdb_new(udev);
udev_list_entry_foreach(entry, udev_hwdb_get_properties_list_entry(hwdb, modalias, 0))
- printf("'%s'='%s'\n", udev_list_entry_get_name(entry), udev_list_entry_get_value(entry));
- printf("\n");
+ log_info("'%s'='%s'", udev_list_entry_get_name(entry), udev_list_entry_get_value(entry));
hwdb = udev_hwdb_unref(hwdb);
assert_se(hwdb == NULL);
}
int main(int argc, char *argv[]) {
- struct udev *udev = NULL;
+ _cleanup_udev_unref_ struct udev *udev = NULL;
+ bool arg_monitor = false;
static const struct option options[] = {
- { "syspath", required_argument, NULL, 'p' },
+ { "syspath", required_argument, NULL, 'p' },
{ "subsystem", required_argument, NULL, 's' },
- { "debug", no_argument, NULL, 'd' },
- { "help", no_argument, NULL, 'h' },
- { "version", no_argument, NULL, 'V' },
+ { "debug", no_argument, NULL, 'd' },
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'V' },
+ { "monitor", no_argument, NULL, 'm' },
{}
};
const char *syspath = "/devices/virtual/mem/null";
const char *subsystem = NULL;
- char path[1024];
int c;
udev = udev_new();
- printf("context: %p\n", udev);
+ log_info("context: %p", udev);
if (udev == NULL) {
- printf("no context\n");
+ log_info("no context");
return 1;
}
case 'h':
printf("--debug --syspath= --subsystem= --help\n");
- goto out;
+ return EXIT_SUCCESS;
case 'V':
- printf("%s\n", VERSION);
- goto out;
+ printf("%s\n", PACKAGE_VERSION);
+ return EXIT_SUCCESS;
+
+ case 'm':
+ arg_monitor = true;
+ break;
case '?':
- goto out;
+ return EXIT_FAILURE;
default:
assert_not_reached("Unhandled option code.");
/* add sys path if needed */
- if (!startswith(syspath, "/sys")) {
- snprintf(path, sizeof(path), "/sys/%s", syspath);
- syspath = path;
- }
+ if (!startswith(syspath, "/sys"))
+ syspath = strjoina("/sys/", syspath);
test_device(udev, syspath);
test_device_devnum(udev);
- test_device_subsys_name(udev);
+ test_device_subsys_name(udev, "block", "sda");
+ test_device_subsys_name(udev, "subsystem", "pci");
+ test_device_subsys_name(udev, "drivers", "scsi:sd");
+ test_device_subsys_name(udev, "module", "printk");
+
test_device_parents(udev, syspath);
test_enumerate(udev, subsystem);
test_hwdb(udev, "usb:v0D50p0011*");
- test_monitor(udev);
-out:
- udev_unref(udev);
- return 0;
+ if (arg_monitor)
+ test_monitor(udev);
+
+ return EXIT_SUCCESS;
}
projects / thirdparty / systemd.git / blobdiff