picnoir/Systemd
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

make ATTR{[$SUBSYSTEM/$KERNEL]<attr>}="<value>" working

Browse source
This commit is contained in:
Kay Sievers 2007-06-10 23:53:40 +02:00
parent 9b2e2d4a8a
commit 956cf79390
1 changed files with 19 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
udev_rules.c
View file

@ -923,14 +923,28 @@ try_parent:
if (pair->key.operation == KEY_OP_ASSIGN) {
const char *key_name = key_pair_name(rule, pair);
char attr[PATH_SIZE];
char devpath[PATH_SIZE];
char *attrib;
char attr[PATH_SIZE] = "";
char value[NAME_SIZE];
FILE *f;
strlcpy(attr, sysfs_path, sizeof(attr));
strlcat(attr, udev->dev->devpath, sizeof(attr));
strlcat(attr, "/", sizeof(attr));
strlcat(attr, key_name, sizeof(attr));
if (attr_get_by_subsys_id(key_name, devpath, sizeof(devpath), &attrib)) {
if (attrib != NULL) {
strlcpy(attr, sysfs_path, sizeof(attr));
strlcat(attr, devpath, sizeof(attr));
strlcat(attr, "/", sizeof(attr));
strlcat(attr, attrib, sizeof(attr));
}
}
if (attr[0] == '\0') {
strlcpy(attr, sysfs_path, sizeof(attr));
strlcat(attr, udev->dev->devpath, sizeof(attr));
strlcat(attr, "/", sizeof(attr));
strlcat(attr, key_name, sizeof(attr));
}
strlcpy(value, key_val(rule, &pair->key), sizeof(value));
udev_rules_apply_format(udev, value, sizeof(value));
info("writing '%s' to sysfs file '%s'", value, attr);