diff options
| -rw-r--r-- | udev_rules.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/udev_rules.c b/udev_rules.c index edaaa71d12..d1c3f042c3 100644 --- a/udev_rules.c +++ b/udev_rules.c @@ -364,6 +364,8 @@ void udev_rules_apply_format(struct udevice *udev, char *string, size_t maxsize) goto found; } } + head[0] = '$'; + err("unknown format variable '%s'", head); } else if (head[0] == '%') { /* substitute format char */ if (head[1] == '\0') @@ -385,6 +387,8 @@ void udev_rules_apply_format(struct udevice *udev, char *string, size_t maxsize) goto found; } } + head[0] = '%'; + err("unknown format char '%c'", tail[0]); } head++; } @@ -554,7 +558,7 @@ found: break; } /* possibly truncate to format-char specified length */ - if (len != -1) { + if (len >= 0 && len < (int)strlen(head)) { head[len] = '\0'; dbg("truncate to %i chars, subtitution string becomes '%s'", len, head); } |