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Another improvement of getifaddrs.patch

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This commit is contained in:
Jiri Popelka 2012-03-26 19:19:37 +02:00
parent 30f41aa41d
commit f0f508f3bf
1 changed files with 7 additions and 1 deletions
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8
dhcp-4.2.3-P2-getifaddrs.patch
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@ -406,14 +406,20 @@ diff -up dhcp-4.2.3-P2/common/discover.c.getifaddrs dhcp-4.2.3-P2/common/discove
if (ifaces->next == NULL) {
*err = 0;
return 0;
@@ -825,8 +446,18 @@ next_iface(struct iface_info *info, int
@@ -825,8 +446,24 @@ next_iface(struct iface_info *info, int
return 0;
}
strcpy(info->name, ifaces->next->ifa_name);
- memcpy(&info->addr, ifaces->next->ifa_addr,
- ifaces->next->ifa_addr->sa_len);
+
+ memset(&info->addr, 0 , sizeof(info->addr));
+ /*
+ * getifaddrs() can on Linux with some interfaces like PPP or TEQL
+ * result in a record with no address (ifa_addr).
+ */
+ if (ifaces->next->ifa_addr != NULL) {
+/* Linux lacks the sa_len member in struct sockaddr. */
+#if defined(__linux)
+ if (ifaces->next->ifa_addr->sa_family == AF_INET)
+ sa_len = sizeof(struct sockaddr_in);