41 lines
1.1 KiB
Diff
41 lines
1.1 KiB
Diff
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diff -up dhcp-4.1.1/common/discover.c.noipv6 dhcp-4.1.1/common/discover.c
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--- dhcp-4.1.1/common/discover.c.noipv6 2010-01-20 17:24:40.000000000 +0100
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+++ dhcp-4.1.1/common/discover.c 2010-01-20 17:24:40.000000000 +0100
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@@ -443,7 +443,7 @@ begin_iface_scan(struct iface_conf_list
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}
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#ifdef DHCPv6
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- if (local_family == AF_INET6) {
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+ if ((local_family == AF_INET6) && !access("/proc/net/if_inet6", R_OK)) {
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ifaces->fp6 = fopen("/proc/net/if_inet6", "re");
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if (ifaces->fp6 == NULL) {
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log_error("Error opening '/proc/net/if_inet6' to "
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@@ -454,6 +454,8 @@ begin_iface_scan(struct iface_conf_list
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ifaces->fp = NULL;
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return 0;
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}
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+ } else {
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+ ifaces->fp6 = NULL;
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}
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#endif
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@@ -721,7 +723,7 @@ next_iface(struct iface_info *info, int
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return 1;
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}
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#ifdef DHCPv6
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- if (!(*err)) {
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+ if (!(*err) && ifaces->fp6) {
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if (local_family == AF_INET6)
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return next_iface6(info, err, ifaces);
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}
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@@ -740,7 +742,8 @@ end_iface_scan(struct iface_conf_list *i
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ifaces->sock = -1;
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#ifdef DHCPv6
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if (local_family == AF_INET6) {
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- fclose(ifaces->fp6);
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+ if (ifaces->fp6)
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+ fclose(ifaces->fp6);
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ifaces->fp6 = NULL;
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}
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#endif
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