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Fixed signal handling of recv message

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Revert to signal handling in 6.5 that was changed in the netconf uniform handling in 7.0
This commit is contained in:
Olof hagsand 2024-08-06 11:22:19 +02:00
parent a2fe24937b
commit ca786da156
3 changed files with 28 additions and 11 deletions
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2
CHANGELOG.md
View file

@ -47,6 +47,8 @@ Developers may need to change their code
### Corrected Busg
* Fixed: Signal handling of recv message
Revert to signal handling in 6.5 that was changed in the netconf uniform handling in 7.0
* Fixed: [NETCONF error reply from failed leafref rquire-instance does not comply to RFC 7950](https://github.com/clicon/clixon/issues/536)
## 7.1.0

23
lib/src/clixon_netconf_input.c
View file

@ -130,15 +130,30 @@ netconf_input_read2(int s,
{
int retval = -1;
ssize_t len;
int restarts = 0;
int maxrestarts = 5;
memset(buf, 0, buflen);
if ((len = read(s, buf, buflen)) < 0){
if (errno == ECONNRESET)
len = 0; /* emulate EOF */
else{
while ((len = read(s, buf, buflen)) < 0) {
switch (errno){
case EINTR:
case EAGAIN:
if (restarts++ >= maxrestarts){
clixon_log(NULL, LOG_ERR, "%s: read: %s", __FUNCTION__, strerror(errno));
goto done;
}
break; /* Try again */
case ECONNRESET: /* Connection reset by peer */
case EPIPE: /* Client shutdown */
case EBADF: /* Client shutdown - freebsd */
len = 0; /* Emulate EOF */
break;
default:
clixon_log(NULL, LOG_ERR, "%s: read: %s", __FUNCTION__, strerror(errno));
goto done;
}
if (len == 0)
break;
} /* read */
clixon_debug(CLIXON_DBG_DEFAULT | CLIXON_DBG_DETAIL, "len:%ld", len);
if (len == 0){ /* EOF */

10
lib/src/clixon_proto.c
View file

@ -549,7 +549,7 @@ clixon_msg_rcv11(int s,
size_t frame_size = 0;
unsigned char *p = buf;
size_t plen;
cbuf *cbmsg=NULL;
cbuf *cbmsg = NULL;
ssize_t len;
int eom = 0;
cxobj *xtop = NULL;
@ -557,10 +557,6 @@ clixon_msg_rcv11(int s,
sigset_t oldsigset = {0,};
struct sigaction oldsigaction[32] = {{{0,},},};
if ((cbmsg = cbuf_new()) == NULL){
clixon_err(OE_XML, errno, "cbuf_new");
goto done;
}
eom = 0;
*eof = 0;
if (intr){
@ -573,6 +569,10 @@ clixon_msg_rcv11(int s,
/* May be more signals to ignore */
set_signal(SIGWINCH, SIG_IGN, NULL);
}
if ((cbmsg = cbuf_new()) == NULL){
clixon_err(OE_XML, errno, "cbuf_new");
goto done;
}
while (*eof == 0 && eom == 0) {
/* Read input data from socket and append to cbbuf */
if ((len = netconf_input_read2(s, buf, buflen, eof)) < 0)