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enforce valid TAG+= names

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This commit is contained in:
Kay Sievers 2011-07-07 20:02:41 +02:00
parent 91f329fcd0
commit 705a165d4d
1 changed files with 10 additions and 0 deletions
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10
udev/udev-rules.c
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@ -2528,10 +2528,20 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event
}
case TK_A_TAG: {
char tag[UTIL_PATH_SIZE];
const char *p;
udev_event_apply_format(event, &rules->buf[cur->key.value_off], tag, sizeof(tag));
if (cur->key.op == OP_ASSIGN || cur->key.op == OP_ASSIGN_FINAL)
udev_device_cleanup_tags_list(event->dev);
for (p = tag; *p != '\0'; p++) {
if ((*p >= 'a' && *p <= 'z') ||
(*p >= 'A' && *p <= 'Z') ||
(*p >= '0' && *p <= '9') ||
*p == '-' || *p == '_')
continue;
err(event->udev, "ignoring invalid tag name '%s'\n", tag);
break;
}
udev_device_add_tag(event->dev, tag);
break;
}