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libudev: accept NULL whitelist in util_replace_chars()
[elogind.git]
/
udev
/
lib
/
libudev-util.c
diff --git
a/udev/lib/libudev-util.c
b/udev/lib/libudev-util.c
index f4e78850f9315ea17924f7bbb6c872c218eb3f2f..1cd18c890696968e8684dc0610486174b5277210 100644
(file)
--- a/
udev/lib/libudev-util.c
+++ b/
udev/lib/libudev-util.c
@@
-398,7
+398,7
@@
int udev_util_replace_chars(char *str, const char *white)
}
/* if space is allowed, replace whitespace with ordinary space */
- if (isspace(str[i]) && strchr(white, ' ') != NULL) {
+ if (isspace(str[i]) &&
white != NULL &&
strchr(white, ' ') != NULL) {
str[i] = ' ';
i++;
replaced++;