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Do not block on ctrl_iface monitor events

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It looks like some of the global control interface cases ended up
blocking in sendmsg() when trying to send an event. Since this can block
all wpa_supplicant processing for multiple seconds, this is very
undesirable. Avoid this by requesting sendmsg() to return an error
rather than waiting for the message to be sent.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2013-07-11 16:19:19 +03:00 committed by Jouni Malinen
parent eb7ddbf108
commit b62b29ea87
1 changed files with 1 additions and 1 deletions
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2
wpa_supplicant/ctrl_iface_unix.c
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@ -602,7 +602,7 @@ static void wpa_supplicant_ctrl_iface_send(const char *ifname, int sock,
offsetof(struct sockaddr_un, sun_path)); offsetof(struct sockaddr_un, sun_path));
msg.msg_name = (void *) &dst->addr; msg.msg_name = (void *) &dst->addr;
msg.msg_namelen = dst->addrlen; msg.msg_namelen = dst->addrlen;
if (sendmsg(sock, &msg, 0) < 0) { if (sendmsg(sock, &msg, MSG_DONTWAIT) < 0) {
int _errno = errno; int _errno = errno;
wpa_printf(MSG_INFO, "CTRL_IFACE monitor[%d]: " wpa_printf(MSG_INFO, "CTRL_IFACE monitor[%d]: "
"%d - %s", "%d - %s",