tftpfs: Always build TFTP client

Move TFTP client filesystem to separate library libtftpfs.a.
Conditionally use legacy network stack features, e.g. BOOTP support.

Update #3419.

cpukit/headers.am

@@ -190,6 +190,7 @@ include_rtems_HEADERS += include/rtems/termios_printk.h
 include_rtems_HEADERS += include/rtems/termios_printk_cnf.h
 include_rtems_HEADERS += include/rtems/termiostypes.h
 include_rtems_HEADERS += include/rtems/test.h
+include_rtems_HEADERS += include/rtems/tftp.h
 include_rtems_HEADERS += include/rtems/thread.h
 include_rtems_HEADERS += include/rtems/timecounter.h
 include_rtems_HEADERS += include/rtems/timespec.h

cpukit/libnetworking/Makefile.am

@@ -1,6 +1,14 @@
 include $(top_srcdir)/automake/multilib.am
 include $(top_srcdir)/automake/compile.am
 
+project_lib_LIBRARIES =
+TMPINSTALL_FILES =
+
+project_lib_LIBRARIES += libtftpfs.a
+libtftpfs_a_SOURCES = lib/tftpDriver.c
+$(PROJECT_LIB)/libtftpfs.a: libtftpfs.a
+	$(INSTALL_DATA) $< $(PROJECT_LIB)/libtftpfs.a
+TMPINSTALL_FILES += $(PROJECT_LIB)/libtftpfs.a
 
 # poll is not supported
 UNUSED_FILES = poll.h
@@ -127,7 +135,7 @@ noinst_LIBRARIES += lib.a
 lib_a_CPPFLAGS = $(AM_CPPFLAGS) $(lib_CPPFLAGS) -D__BSD_VISIBLE
 
 lib_a_SOURCES = lib/getprotoby.c lib/rtems_bsdnet_ntp.c lib/ftpfs.c \
-    lib/syslog.c lib/tftpDriver.c
+    lib/syslog.c
 lib_a_SOURCES += rtems/rtems_syscall_api.c
 endif
 

cpukit/libnetworking/headers.am

@@ -115,7 +115,6 @@ include_rtems_HEADERS += rtems/rtems_mii_ioctl.h
 include_rtems_HEADERS += rtems/rtems_netdb.h
 include_rtems_HEADERS += rtems/rtems_netinet_in.h
 include_rtems_HEADERS += rtems/rtems_syscall.h
-include_rtems_HEADERS += rtems/tftp.h
 
 include_rtems_bsdnetdir = $(includedir)/rtems/bsdnet
 include_rtems_bsdnet_HEADERS =

cpukit/libnetworking/lib/tftpDriver.c

@@ -28,7 +28,6 @@
 #include <rtems.h>
 #include <rtems/libio_.h>
 #include <rtems/seterr.h>
-#include <rtems/rtems_bsdnet.h>
 #include <rtems/tftp.h>
 #include <rtems/thread.h>
 #include <sys/types.h>
@@ -37,6 +36,10 @@
 #include <arpa/inet.h>
 #include <netdb.h>
 
+#ifdef RTEMS_NETWORKING
+#include <rtems/rtems_bsdnet.h>
+#endif
+
 #ifdef RTEMS_TFTP_DRIVER_DEBUG
 int rtems_tftp_driver_debug = 1;
 #endif
@@ -537,9 +540,11 @@ static int rtems_tftp_open_worker(
      */
     hostname = full_path_name;
     cp1 = strchr (full_path_name, ':');
-    if (!cp1)
+    if (!cp1) {
+#ifdef RTEMS_NETWORKING
         hostname = "BOOTP_HOST";
-    else {
+#endif
+    } else {
         *cp1 = '\0';
         ++cp1;
     }
@@ -547,9 +552,12 @@ static int rtems_tftp_open_worker(
     /*
      * Convert hostname to Internet address
      */
+#ifdef RTEMS_NETWORKING
     if (strcmp (hostname, "BOOTP_HOST") == 0)
         farAddress = rtems_bsdnet_bootp_server_address;
-    else if (inet_aton (hostname, &farAddress) == 0) {
+    else
+#endif
+    if (inet_aton (hostname, &farAddress) == 0) {
         struct hostent *he = gethostbyname(hostname);
         if (he == NULL)
             return ENOENT;
@@ -559,9 +567,11 @@ static int rtems_tftp_open_worker(
     /*
      * Extract file pathname component
      */
+#ifdef RTEMS_NETWORKING
     if (strcmp (cp1, "BOOTP_FILE") == 0) {
         cp1 = rtems_bsdnet_bootp_boot_file_name;
     }
+#endif
     if (*cp1 == '\0')
         return ENOENT;
     remoteFilename = cp1;