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-rw-r--r--interface.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/interface.c b/interface.c
index af05d7b9..39b39922 100644
--- a/interface.c
+++ b/interface.c
@@ -19,6 +19,7 @@
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <linux/netdevice.h>
+#include <errno.h>
#include "fetchmail.h"
static struct in_addr interface_address;
@@ -45,8 +46,9 @@ static int _get_ifinfo_(int socket_fd, FILE *stats_file, const char *ifname,
/* see if the interface is up */
strcpy(request.ifr_name, ifname);
+ errno = 0;
if (ioctl(socket_fd, SIOCGIFFLAGS, &request) < 0)
- return(FALSE);
+ error(PS_IOERR, errno, "interface status check failed");
if (!(request.ifr_flags & IFF_RUNNING))
return(FALSE);