From 773a4dd661794aae12433aa5edc5715b0d1e038e Mon Sep 17 00:00:00 2001
From: John <ebusd@ebusd.eu>
Date: Thu, 18 May 2023 13:20:33 +0200
Subject: [PATCH] improve compilability

---
 CMakeLists.txt               |  1 +
 configure.ac                 |  2 ++
 src/ebusd/Makefile.am        |  1 +
 src/lib/ebus/device.cpp      |  9 +++++++--
 src/lib/utils/httpclient.cpp |  2 ++
 src/lib/utils/tcpsocket.cpp  | 15 ++++++++++-----
 6 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e4e68d0e..2d311930 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -64,6 +64,7 @@ check_include_file(sys/time.h HAVE_SYS_TIME_H)
 check_include_file(syslog.h HAVE_SYSLOG_H)
 check_include_file(time.h HAVE_TIME_H)
 check_include_file(termios.h HAVE_TERMIOS_H)
+check_function_exists(cfsetspeed HAVE_CFSETSPEED)
 
 set(CMAKE_REQUIRED_LIBRARIES pthread rt)
 check_function_exists(pthread_setname_np HAVE_PTHREAD_SETNAME_NP)
diff --git a/configure.ac b/configure.ac
index eec309b7..ad7453ed 100755
--- a/configure.ac
+++ b/configure.ac
@@ -27,6 +27,8 @@ AC_CHECK_HEADERS([arpa/inet.h \
 	time.h \
 	termios.h])
 
+AC_CHECK_FUNC([cfsetspeed], [AC_DEFINE(HAVE_CFSETSPEED, [1], [Defined if cfsetspeed() is available.])])
+
 AC_CHECK_LIB([pthread], [pthread_setname_np],
 	AC_DEFINE([HAVE_PTHREAD_SETNAME_NP], [1], [Defined if pthread_setname_np is available.]),
 	AC_MSG_RESULT([Could not find pthread_setname_np in pthread.]))
diff --git a/src/ebusd/Makefile.am b/src/ebusd/Makefile.am
index eb630716..38826824 100644
--- a/src/ebusd/Makefile.am
+++ b/src/ebusd/Makefile.am
@@ -11,6 +11,7 @@ ebusd_SOURCES = \
 		datahandler.h datahandler.cpp \
 		network.h network.cpp \
 		mainloop.h mainloop.cpp \
+		scan.h scan.cpp \
 		main.h main.cpp
 
 if MQTT
diff --git a/src/lib/ebus/device.cpp b/src/lib/ebus/device.cpp
index a53a65dd..e8acb069 100755
--- a/src/lib/ebus/device.cpp
+++ b/src/lib/ebus/device.cpp
@@ -886,7 +886,12 @@ result_t SerialDevice::open() {
   // create new settings
   memset(&newSettings, 0, sizeof(newSettings));
 
+#ifdef HAVE_CFSETSPEED
   cfsetspeed(&newSettings, m_enhancedProto ? (m_enhancedHighSpeed ? B115200 : B9600) : B2400);
+#else
+  cfsetispeed(&newSettings, m_enhancedProto ? (m_enhancedHighSpeed ? B115200 : B9600) : B2400);
+  cfsetospeed(&newSettings, m_enhancedProto ? (m_enhancedHighSpeed ? B115200 : B9600) : B2400);
+#endif
   newSettings.c_cflag |= (CS8 | CLOCAL | CREAD);
   newSettings.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);  // non-canonical mode
   newSettings.c_iflag |= IGNPAR;  // ignore parity errors
@@ -924,8 +929,8 @@ void SerialDevice::close() {
 }
 
 void SerialDevice::checkDevice() {
-  int port;
-  if (ioctl(m_fd, TIOCMGET, &port) == -1) {
+  int cnt;
+  if (ioctl(m_fd, FIONREAD, &cnt) == -1) {
     close();
   }
 }
diff --git a/src/lib/utils/httpclient.cpp b/src/lib/utils/httpclient.cpp
index 279a031f..3fa8a9aa 100755
--- a/src/lib/utils/httpclient.cpp
+++ b/src/lib/utils/httpclient.cpp
@@ -435,6 +435,7 @@ bool HttpClient::request(const string& method, const string& uri, const string&
   string headers = result.substr(0, pos+2);  // including final \r\n
   const char* hdrs = headers.c_str();
   *response = result.substr(pos+4);
+#ifdef HAVE_TIME_H
   if (time) {
     pos = headers.find("\r\nLast-Modified: ");
     if (pos != string::npos && headers.substr(pos+42, 4) == " GMT") {
@@ -474,6 +475,7 @@ bool HttpClient::request(const string& method, const string& uri, const string&
       }
     }
   }
+#endif
   pos = headers.find("\r\nContent-Length: ");
   if (pos == string::npos) {
     disconnect();
diff --git a/src/lib/utils/tcpsocket.cpp b/src/lib/utils/tcpsocket.cpp
index 5e6268f7..6c6d09a4 100755
--- a/src/lib/utils/tcpsocket.cpp
+++ b/src/lib/utils/tcpsocket.cpp
@@ -124,11 +124,6 @@ int tcpKeepAliveInterval) {
     }
 #endif
   }
-#ifndef HAVE_PPOLL
-#ifndef HAVE_PSELECT
-  timeout = 0;
-#endif
-#endif
   if (tcpConnectTimeout > 0 && fcntl(sfd, F_SETFL, O_NONBLOCK) < 0) {  // set non-blocking
     close(sfd);
     return -1;
@@ -140,9 +135,15 @@ int tcpKeepAliveInterval) {
       return -1;
     }
     if (tcpConnectTimeout > 0) {
+#if defined(HAVE_PPOLL) || defined(HAVE_PSELECT)
       struct timespec tdiff;
       tdiff.tv_sec = tcpConnectTimeout;
       tdiff.tv_nsec = 0;
+#else
+      struct timeval tdiff;
+      tdiff.tv_sec = tcpConnectTimeout;
+      tdiff.tv_usec = 0;
+#endif
 #ifdef HAVE_PPOLL
       nfds_t nfds = 1;
       struct pollfd fds[nfds];
@@ -159,7 +160,11 @@ int tcpKeepAliveInterval) {
       FD_ZERO(&writefds);
       FD_ZERO(&exceptfds);
       FD_SET(sfd, &readfds);
+#ifdef HAVE_PSELECT
       ret = pselect(sfd + 1, &readfds, &writefds, &exceptfds, &tdiff, nullptr);
+#else
+      ret = select(sfd + 1, &readfds, &writefds, &exceptfds, &tdiff);
+#endif
       if (ret >= 1 && FD_ISSET(sfd, &exceptfds)) {
         ret = -1;
       }