extern "C" int ttyname_r(int fd, char *buf, size_t buflen)
{
char tmpbuf[64];
DMTCP_PLUGIN_DISABLE_CKPT();
int ret = _real_ttyname_r(fd, tmpbuf, sizeof(tmpbuf));
if (ret == 0 && strcmp(tmpbuf, "/dev/tty") != 0) {
Connection* c = FileConnList::instance().getConnection(fd);
JASSERT(c != NULL) (fd) (tmpbuf);
PtyConnection* ptyCon =(PtyConnection*) c;
string virtPtsName = ptyCon->virtPtsName();
if (virtPtsName.length() >= buflen) {
JWARNING(false) (virtPtsName) (virtPtsName.length()) (buflen)
.Text("fake ptsname() too long for user buffer");
errno = ERANGE;
ret = -1;
} else {
strncpy(buf, virtPtsName.c_str(), buflen);
}
}
DMTCP_PLUGIN_ENABLE_CKPT();
return ret;
}
static int ptsname_r_work(int fd, char * buf, size_t buflen)
{
JTRACE("Calling ptsname_r");
Connection* c = FileConnList::instance().getConnection(fd);
PtyConnection* ptyCon =(PtyConnection*) c;
string virtPtsName = ptyCon->virtPtsName();
JTRACE("ptsname_r") (virtPtsName);
if (virtPtsName.length() >= buflen)
{
JWARNING(false) (virtPtsName) (virtPtsName.length()) (buflen)
.Text("fake ptsname() too long for user buffer");
errno = ERANGE;
return -1;
}
strcpy(buf, virtPtsName.c_str());
return 0;
}
