lxc_user_nic: report strerror(errno)

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

diff --git a/src/lxc/lxc_user_nic.c b/src/lxc/lxc_user_nic.c
index da3ae74d4718f4dee8f39b23c852e0e530faad69..8c73b554bbe7ef2ff35a6ec47f0d33f83415ff66 100644 (file)
--- a/src/lxc/lxc_user_nic.c
+++ b/src/lxc/lxc_user_nic.c
@@ -633,7 +633,7 @@ bool cull_entries(int fd, char *me, char *t, char *br)
                return true;
        buf = mmap(NULL, len, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
        if (buf == MAP_FAILED) {
-               fprintf(stderr, "Failed to create mapping: error %d\n", errno);
+               fprintf(stderr, "Failed to create mapping: %s\n", strerror(errno));
                return false;
        }
 
@@ -718,7 +718,7 @@ bool get_nic_if_avail(int fd, char *me, int pid, char *intype, char *br, int all
                fprintf(stderr, "Failed to set new file size\n");
        buf = mmap(NULL, len + slen, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
        if (buf == MAP_FAILED) {
-               fprintf(stderr, "Failed to create mapping after extending: error %d\n", errno);
+               fprintf(stderr, "Failed to create mapping after extending: %s\n", strerror(errno));
                if (lxc_netdev_delete_by_name(*nicname) != 0)
                        fprintf(stderr, "Error unlinking %s!\n", *nicname);
                return false;