diff options
Diffstat (limited to 'src/test/test-libudev.c')
| -rw-r--r-- | src/test/test-libudev.c | 275 |
1 files changed, 114 insertions, 161 deletions
diff --git a/src/test/test-libudev.c b/src/test/test-libudev.c index 34c49b969a..e28de9b37b 100644 --- a/src/test/test-libudev.c +++ b/src/test/test-libudev.c @@ -1,4 +1,3 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. @@ -18,174 +17,147 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ -#include <stdio.h> -#include <unistd.h> #include <getopt.h> +#include <stdio.h> #include <sys/epoll.h> +#include <unistd.h> #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) { @@ -198,63 +170,45 @@ 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; @@ -263,7 +217,7 @@ static int test_monitor(struct udev *udev) { 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++) { @@ -277,36 +231,29 @@ static int test_monitor(struct udev *udev) { 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; @@ -315,7 +262,7 @@ static int test_enumerate(struct udev *udev, const char *subsystem) { 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; @@ -335,7 +282,7 @@ static int test_enumerate(struct udev *udev, const char *subsystem) { 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; @@ -349,7 +296,7 @@ static int test_enumerate(struct udev *udev, const char *subsystem) { 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; @@ -358,7 +305,7 @@ static int test_enumerate(struct udev *udev, const char *subsystem) { 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; @@ -369,7 +316,7 @@ static int test_enumerate(struct udev *udev, const char *subsystem) { 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; @@ -377,7 +324,7 @@ static int test_enumerate(struct udev *udev, const char *subsystem) { 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; @@ -395,32 +342,32 @@ static void test_hwdb(struct udev *udev, const char *modalias) { 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; } @@ -442,14 +389,18 @@ int main(int argc, char *argv[]) { case 'h': printf("--debug --syspath= --subsystem= --help\n"); - goto out; + return EXIT_SUCCESS; case 'V': printf("%s\n", VERSION); - goto out; + return EXIT_SUCCESS; + + case 'm': + arg_monitor = true; + break; case '?': - goto out; + return EXIT_FAILURE; default: assert_not_reached("Unhandled option code."); @@ -457,14 +408,16 @@ int main(int argc, char *argv[]) { /* 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); @@ -473,8 +426,8 @@ int main(int argc, char *argv[]) { test_hwdb(udev, "usb:v0D50p0011*"); - test_monitor(udev); -out: - udev_unref(udev); - return 0; + if (arg_monitor) + test_monitor(udev); + + return EXIT_SUCCESS; } |