ifup: make /etc/network/interfaces parser tolerant to trailing spaces

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/networking/ifupdown.c b/networking/ifupdown.c
index 6b9449213..d0c5cce07 100644
--- a/networking/ifupdown.c
+++ b/networking/ifupdown.c
@@ -644,6 +644,9 @@ static const struct address_family_t addr_inet = {
 
 #endif  /* if ENABLE_FEATURE_IFUPDOWN_IPV4 */
 
+/* Returns pointer to the next word, or NULL.
+ * In 1st case, advances *buf to the word after this one.
+ */
 static char *next_word(char **buf)
 {
         unsigned length;
@@ -663,7 +666,7 @@ static char *next_word(char **buf)
         if (word[length] != '\0')
                 word[length++] = '\0';
 
-        *buf = word + length;
+        *buf = skip_whitespace(word + length);
 
         return word;
 }