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-rw-r--r--ChangeLog6
-rw-r--r--NEWS2
-rw-r--r--sysdeps/unix/sysv/linux/ifaddrs.c11
3 files changed, 11 insertions, 8 deletions
diff --git a/ChangeLog b/ChangeLog
index e316f8c3b2..a40fb4622c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2014-09-15 Andreas Schwab <schwab@linux-m68k.org>
+
+ [BZ #17371]
+ * sysdeps/unix/sysv/linux/ifaddrs.c (getifaddrs_internal): Fix
+ last change to handle zero prefix length.
+
2014-09-15 Siddhesh Poyarekar <siddhesh@redhat.com>
* sysdeps/posix/sysconf.c (__sysconf): Return -1 for
diff --git a/NEWS b/NEWS
index 680c265c68..231159071e 100644
--- a/NEWS
+++ b/NEWS
@@ -9,7 +9,7 @@ Version 2.21
* The following bugs are resolved with this release:
- 17363, 17370.
+ 17363, 17370, 17371.
Version 2.20
diff --git a/sysdeps/unix/sysv/linux/ifaddrs.c b/sysdeps/unix/sysv/linux/ifaddrs.c
index 2c04e172ce..a47b2edcad 100644
--- a/sysdeps/unix/sysv/linux/ifaddrs.c
+++ b/sysdeps/unix/sysv/linux/ifaddrs.c
@@ -770,20 +770,17 @@ getifaddrs_internal (struct ifaddrs **ifap)
if (cp != NULL)
{
- char c;
unsigned int preflen;
- if ((max_prefixlen > 0) &&
- (ifam->ifa_prefixlen > max_prefixlen))
+ if (ifam->ifa_prefixlen > max_prefixlen)
preflen = max_prefixlen;
else
preflen = ifam->ifa_prefixlen;
- for (i = 0; i < ((preflen - 1) / 8); i++)
+ for (i = 0; i < preflen / 8; i++)
*cp++ = 0xff;
- c = 0xff;
- c <<= ((128 - preflen) % 8);
- *cp = c;
+ if (preflen % 8)
+ *cp = 0xff << (8 - preflen % 8);
}
}
}