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udevd: log error for too old kernels or CONFIG_SYSFS_DEPRECATED

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This commit is contained in:
Kay Sievers 2009-04-16 22:34:26 +02:00
parent ff109b8ded
commit b44b7f8841
1 changed files with 30 additions and 22 deletions
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52
udev/udevd.c
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@ -295,7 +295,7 @@ static void event_queue_insert(struct udev_event *event)
static int mem_size_mb(void)
{
FILE* f;
FILE *f;
char buf[4096];
long int memsize = -1;
@ -708,6 +708,34 @@ static void export_initial_seqnum(struct udev *udev)
}
}
static void startup_log(struct udev *udev)
{
FILE *f;
char path[UTIL_PATH_SIZE];
struct stat statbuf;
f = fopen("/dev/kmsg", "w");
if (f != NULL)
fprintf(f, "<6>udev: starting version " VERSION "\n");
util_strlcpy(path, udev_get_sys_path(udev), sizeof(path));
util_strlcat(path, "/class/mem/null", sizeof(path));
if (lstat(path, &statbuf) == 0 && S_ISDIR(statbuf.st_mode)) {
const char *depr_str =
"udev: missing sysfs features; please update the kernel "
"or disable the kernel's CONFIG_SYSFS_DEPRECATED option; "
"udev may fail to work correctly";
if (f != NULL)
fprintf(f, "<3>%s\n", depr_str);
err(udev, "%s\n", depr_str);
sleep(3);
}
if (f != NULL)
fclose(f);
}
int main(int argc, char *argv[])
{
struct udev *udev;
@ -875,27 +903,7 @@ int main(int argc, char *argv[])
close(fd);
}
fd = open("/dev/kmsg", O_WRONLY);
if (fd > 0) {
const char *ver_str = "<6>udev: starting version " VERSION "\n";
char path[UTIL_PATH_SIZE];
struct stat statbuf;
write(fd, ver_str, strlen(ver_str));
util_strlcpy(path, udev_get_sys_path(udev), sizeof(path));
util_strlcat(path, "/class/mem/null", sizeof(path));
if (lstat(path, &statbuf) == 0) {
if (S_ISDIR(statbuf.st_mode)) {
const char *depr_str =
"<6>udev: deprecated sysfs layout; update the kernel or "
"disable CONFIG_SYSFS_DEPRECATED; some udev features will "
"not work correctly\n";
write(fd, depr_str, strlen(depr_str));
}
}
close(fd);
}
startup_log(udev);
/* set signal handlers */
memset(&act, 0x00, sizeof(struct sigaction));