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Diffstat (limited to 'lib/erl_interface/src/epmd/epmd_publish.c')
-rw-r--r--lib/erl_interface/src/epmd/epmd_publish.c62
1 files changed, 40 insertions, 22 deletions
diff --git a/lib/erl_interface/src/epmd/epmd_publish.c b/lib/erl_interface/src/epmd/epmd_publish.c
index 47d68a6db0..ef8a5d6b70 100644
--- a/lib/erl_interface/src/epmd/epmd_publish.c
+++ b/lib/erl_interface/src/epmd/epmd_publish.c
@@ -68,8 +68,11 @@ static int ei_epmd_r4_publish (int port, const char *alive, unsigned ms)
int nlen = strlen(alive);
int len = elen + nlen + 13; /* hard coded: be careful! */
int n;
- int res, creation;
-
+ int err, response, res;
+ unsigned creation;
+ ssize_t dlen;
+ unsigned tmo = ms == 0 ? EI_SCLBK_INF_TMO : ms;
+
if (len > sizeof(buf)-2)
{
erl_errno = ERANGE;
@@ -93,29 +96,41 @@ static int ei_epmd_r4_publish (int port, const char *alive, unsigned ms)
if ((fd = ei_epmd_connect_tmo(NULL,ms)) < 0) return fd;
- if ((res = ei_write_fill_t(fd, buf, len+2, ms)) != len+2) {
- closesocket(fd);
- erl_errno = (res == -2) ? ETIMEDOUT : EIO;
- return -1;
+ dlen = (ssize_t) len+2;
+ err = ei_write_fill_t__(fd, buf, &dlen, tmo);
+ if (!err && dlen != (ssize_t) len + 2)
+ erl_errno = EIO;
+ if (err) {
+ ei_close__(fd);
+ EI_CONN_SAVE_ERRNO__(err);
+ return -1;
}
EI_TRACE_CONN6("ei_epmd_r4_publish",
"-> ALIVE2_REQ alive=%s port=%d ntype=%d "
"proto=%d dist-high=%d dist-low=%d",
alive,port,'H',EI_MYPROTO,EI_DIST_HIGH,EI_DIST_LOW);
-
- if ((n = ei_read_fill_t(fd, buf, 4, ms)) != 4) {
+
+ dlen = (ssize_t) 4;
+ err = ei_read_fill_t__(fd, buf, &dlen, tmo);
+ n = (int) dlen;
+ if (!err && n != 4)
+ err = EIO;
+ if (err) {
EI_TRACE_ERR0("ei_epmd_r4_publish","<- CLOSE");
- closesocket(fd);
- erl_errno = (n == -2) ? ETIMEDOUT : EIO;
+ ei_close__(fd);
+ EI_CONN_SAVE_ERRNO__(err);
return -2; /* version mismatch */
}
+
/* Don't close fd here! It keeps us registered with epmd */
s = buf;
- if (((res=get8(s)) != EI_EPMD_ALIVE2_RESP)) { /* response */
- EI_TRACE_ERR1("ei_epmd_r4_publish","<- unknown (%d)",res);
+ response = get8(s);
+ if (response != EI_EPMD_ALIVE2_RESP &&
+ response != EI_EPMD_ALIVE2_X_RESP) {
+ EI_TRACE_ERR1("ei_epmd_r4_publish","<- unknown (%d)",response);
EI_TRACE_ERR0("ei_epmd_r4_publish","-> CLOSE");
- closesocket(fd);
+ ei_close__(fd);
erl_errno = EIO;
return -1;
}
@@ -124,23 +139,26 @@ static int ei_epmd_r4_publish (int port, const char *alive, unsigned ms)
if (((res=get8(s)) != 0)) { /* 0 == success */
EI_TRACE_ERR1("ei_epmd_r4_publish"," result=%d (fail)",res);
- closesocket(fd);
+ ei_close__(fd);
erl_errno = EIO;
return -1;
}
- creation = get16be(s);
+ if (response == EI_EPMD_ALIVE2_RESP)
+ creation = get16be(s);
+ else /* EI_EPMD_ALIVE2_X_RESP */
+ creation = get32be(s);
EI_TRACE_CONN2("ei_epmd_r4_publish",
- " result=%d (ok) creation=%d",res,creation);
-
- /* probably should save fd so we can close it later... */
- /* epmd_saveconn(OPEN,fd,alive); */
+ " result=%d (ok) creation=%u",res,creation);
- /* return the creation number, for no good reason */
- /* return creation;*/
+ /*
+ * Would be nice to somehow use the nice "unique" creation value
+ * received here from epmd instead of using the crappy one
+ * passed (already) to ei_connect_init.
+ */
- /* no - return the descriptor */
+ /* return the descriptor */
return fd;
}