[package] comgt: move ifup invocation back into background subshell to prevent hotplu...

[openwrt.git] / package / wprobe / src / user / wprobe-lib.c

diff --git a/package/wprobe/src/user/wprobe-lib.c b/package/wprobe/src/user/wprobe-lib.c
index a3b0fb5..7a5460b 100644 (file)
--- a/package/wprobe/src/user/wprobe-lib.c
+++ b/package/wprobe/src/user/wprobe-lib.c
@@ -13,6 +13,8 @@
  * GNU General Public License for more details.
  */
 
+#define _ISOC99_SOURCE
+#define _BSD_SOURCE
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <stdio.h>
@@ -558,7 +560,9 @@ wprobe_msg_to_network(int socket, struct nl_msg *msg)
        mhdr.status = WPROBE_MSG_DATA;
        mhdr.len = buflen;
        wprobe_swap_msg_hdr(&mhdr);
-       write(socket, &mhdr, sizeof(mhdr));
+       ret = write(socket, &mhdr, sizeof(mhdr));
+       if (ret < 0)
+               goto out;
 
        memcpy(buf, nlh, buflen);
        nlh = buf;
@@ -570,6 +574,8 @@ wprobe_msg_to_network(int socket, struct nl_msg *msg)
        swap_genlmsghdr(gnlh);
        swap_nlmsghdr(nlh);
        ret = write(socket, buf, buflen);
+
+out:
        free(buf);
 
        return ret;
@@ -795,7 +801,8 @@ wprobe_get_auto(const char *arg, char **err)
                free(devstr);
                return wprobe_get_dev(arg);
 #else
-               *err = "Invalid argument";
+               if (err)
+                       *err = "Invalid argument";
                goto out;
 #endif
        }