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check socket closed when reading

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Vincent Wei
2018-07-31 11:13:33 +08:00
parent 1bc43f6580
commit 5ff06823e4
1 changed files with 8 additions and 2 deletions
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10
src/ial/usvfbinput.c
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@@ -150,9 +150,15 @@ static int my_wait_for_input (struct timeval *timeout)
struct _frame_header header;
n = read (__mg_usvfb_fd, &header, sizeof (struct _frame_header));
if (n != sizeof (struct _frame_header)) {
_ERR_PRINTF ("my_wait_for_input: error on reading event: %ld\n", n);
if (n == 0) {
_ERR_PRINTF ("my_wait_for_input: socket closed; exit...\n");
exit (1);
}
else if (n != sizeof (struct _frame_header)) {
_ERR_PRINTF ("my_wait_for_input: socket IO error: %d\n", errno);
return -1;
}
switch (header.type) {
case FT_PING:
header.type = FT_PONG;