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-rw-r--r--erts/epmd/src/epmd_int.h1
-rw-r--r--erts/epmd/src/epmd_srv.c18
2 files changed, 11 insertions, 8 deletions
diff --git a/erts/epmd/src/epmd_int.h b/erts/epmd/src/epmd_int.h
index b120b44579..30f731d49e 100644
--- a/erts/epmd/src/epmd_int.h
+++ b/erts/epmd/src/epmd_int.h
@@ -294,6 +294,7 @@ struct enode {
char protocol; /* 0 = tcp/ipv4 */
unsigned short highvsn; /* 0 = OTP-R3 erts-4.6.x, 1 = OTP-R4 erts-4.7.x*/
unsigned short lowvsn;
+ int extralen;
char extra[MAXSYMLEN+1];
};
diff --git a/erts/epmd/src/epmd_srv.c b/erts/epmd/src/epmd_srv.c
index b71e27cffd..27d30eee6b 100644
--- a/erts/epmd/src/epmd_srv.c
+++ b/erts/epmd/src/epmd_srv.c
@@ -99,7 +99,7 @@ static int conn_close_fd(EpmdVars*,int);
static void node_init(EpmdVars*);
static Node *node_reg(EpmdVars*,char*,int,int);
-static Node *node_reg2(EpmdVars*,char*, int, int, unsigned char, unsigned char, int, int, char*);
+static Node *node_reg2(EpmdVars*,char*, int, int, unsigned char, unsigned char, int, int, int, char*);
static int node_unreg(EpmdVars*,char*);
static int node_unreg_sock(EpmdVars*,int);
@@ -558,11 +558,11 @@ static void do_request(g, fd, s, buf, bsize)
}
name = &buf[11];
name[namelen]='\000';
- extra = &buf[11+namelen+1];
+ extra = &buf[11+namelen+2];
extra[extralen]='\000';
wbuf[0] = EPMD_ALIVE2_RESP;
if ((node = node_reg2(g, name, fd, eport, nodetype, protocol,
- highvsn, lowvsn, extra)) == NULL) {
+ highvsn, lowvsn, extralen, extra)) == NULL) {
wbuf[1] = 1; /* error */
put_int16(99, wbuf+2);
} else {
@@ -622,10 +622,10 @@ static void do_request(g, fd, s, buf, bsize)
offset = 12;
strcpy(wbuf + offset,node->symname);
offset += strlen(node->symname);
- put_int16(strlen(node->extra),wbuf + offset);
+ put_int16(node->extralen,wbuf + offset);
offset += 2;
- strcpy(wbuf + offset,node->extra);
- offset += (strlen(node->extra)-1);
+ memcpy(wbuf + offset,node->extra,node->extralen);
+ offset += node->extralen;
if (reply(g, fd, wbuf, offset) != offset)
{
dbg_tty_printf(g,1,"** failed to send PORT2_RESP (ok) for \"%s\"",name);
@@ -994,7 +994,7 @@ static int node_unreg_sock(EpmdVars *g,int fd)
static Node *node_reg(EpmdVars *g,char *name,int fd, int port)
{
- return node_reg2(g, name, fd, port, 0, 0, 0, 0, NULL);
+ return node_reg2(g, name, fd, port, 0, 0, 0, 0, 0, NULL);
}
static Node *node_reg2(EpmdVars *g,
@@ -1005,6 +1005,7 @@ static Node *node_reg2(EpmdVars *g,
unsigned char protocol,
int highvsn,
int lowvsn,
+ int extralen,
char* extra)
{
Node *prev; /* Point to previous node or NULL */
@@ -1103,7 +1104,8 @@ static Node *node_reg2(EpmdVars *g,
node->protocol = protocol;
node->highvsn = highvsn;
node->lowvsn = lowvsn;
- strcpy(node->extra,extra);
+ node->extralen = extralen;
+ memcpy(node->extra,extra,extralen);
strcpy(node->symname,name);
FD_SET(fd,&g->orig_read_mask);