[PATCH 7/9] Add dummy implementation of getentropy(), if_nametoindex() and if_indextoname() functions.

[Jakub Sejdak <jakub dot sejdak at phoesys dot com>]

From: Kuba Sejdak <jakub.sejdak@phoesys.com>

---
 newlib/libc/sys/phoenix/Makefile.am       |  6 ++++
 newlib/libc/sys/phoenix/Makefile.in       | 41 ++++++++++++++++++-------
 newlib/libc/sys/phoenix/getentropy.c      | 48 +++++++++++++++++++++++++++++
 newlib/libc/sys/phoenix/net/nametoindex.c | 50 +++++++++++++++++++++++++++++++
 4 files changed, 134 insertions(+), 11 deletions(-)
 create mode 100644 newlib/libc/sys/phoenix/getentropy.c
 create mode 100644 newlib/libc/sys/phoenix/net/nametoindex.c

diff --git a/newlib/libc/sys/phoenix/Makefile.am b/newlib/libc/sys/phoenix/Makefile.am
index e57a334..e83be53 100644
--- a/newlib/libc/sys/phoenix/Makefile.am
+++ b/newlib/libc/sys/phoenix/Makefile.am
@@ -31,6 +31,7 @@ SOURCES = \
 	net/inet_ntoa.c \
 	net/inet_ntop.c \
 	net/inet_pton.c \
+	net/nametoindex.c \
 	net/network.c \
 	alarm.c \
 	chmod.c \
@@ -42,6 +43,7 @@ SOURCES = \
 	fcntl.c \
 	fork.c \
 	fs.c \
+	getentropy.c \
 	getmntent.c \
 	getpagesize.c \
 	groups.c \
@@ -130,4 +132,8 @@ install-data-local:
 	$(mkinstalldirs) $(DESTDIR)$(tooldir)/include/netinet6; \
 	for i in $(srcdir)/include/netinet6/*.h; do \
 	  $(INSTALL_DATA) $$i $(DESTDIR)$(tooldir)/include/netinet6/`basename $$i`; \
+	done; \
+	$(mkinstalldirs) $(DESTDIR)$(tooldir)/include/netpacket; \
+	for i in $(srcdir)/include/netpacket/*.h; do \
+	  $(INSTALL_DATA) $$i $(DESTDIR)$(tooldir)/include/netpacket/`basename $$i`; \
 	done;
diff --git a/newlib/libc/sys/phoenix/Makefile.in b/newlib/libc/sys/phoenix/Makefile.in
index bcd6388..18e76fa 100644
--- a/newlib/libc/sys/phoenix/Makefile.in
+++ b/newlib/libc/sys/phoenix/Makefile.in
@@ -81,17 +81,18 @@ am__objects_1 = lib_a-domainname.$(OBJEXT) \
 	lib_a-inet_net_pton.$(OBJEXT) lib_a-inet_netof.$(OBJEXT) \
 	lib_a-inet_network.$(OBJEXT) lib_a-inet_ntoa.$(OBJEXT) \
 	lib_a-inet_ntop.$(OBJEXT) lib_a-inet_pton.$(OBJEXT) \
-	lib_a-network.$(OBJEXT) lib_a-alarm.$(OBJEXT) \
-	lib_a-chmod.$(OBJEXT) lib_a-chown.$(OBJEXT) \
-	lib_a-clocks.$(OBJEXT) lib_a-dup.$(OBJEXT) \
-	lib_a-endmntent.$(OBJEXT) lib_a-exec.$(OBJEXT) \
-	lib_a-fcntl.$(OBJEXT) lib_a-fork.$(OBJEXT) lib_a-fs.$(OBJEXT) \
-	lib_a-getmntent.$(OBJEXT) lib_a-getpagesize.$(OBJEXT) \
-	lib_a-groups.$(OBJEXT) lib_a-ids.$(OBJEXT) lib_a-io.$(OBJEXT) \
-	lib_a-ioctl.$(OBJEXT) lib_a-mmap.$(OBJEXT) \
-	lib_a-mount.$(OBJEXT) lib_a-nanosleep.$(OBJEXT) \
-	lib_a-phoenix.$(OBJEXT) lib_a-pid.$(OBJEXT) \
-	lib_a-pipe.$(OBJEXT) lib_a-poll.$(OBJEXT) \
+	lib_a-nametoindex.$(OBJEXT) lib_a-network.$(OBJEXT) \
+	lib_a-alarm.$(OBJEXT) lib_a-chmod.$(OBJEXT) \
+	lib_a-chown.$(OBJEXT) lib_a-clocks.$(OBJEXT) \
+	lib_a-dup.$(OBJEXT) lib_a-endmntent.$(OBJEXT) \
+	lib_a-exec.$(OBJEXT) lib_a-fcntl.$(OBJEXT) \
+	lib_a-fork.$(OBJEXT) lib_a-fs.$(OBJEXT) \
+	lib_a-getentropy.$(OBJEXT) lib_a-getmntent.$(OBJEXT) \
+	lib_a-getpagesize.$(OBJEXT) lib_a-groups.$(OBJEXT) \
+	lib_a-ids.$(OBJEXT) lib_a-io.$(OBJEXT) lib_a-ioctl.$(OBJEXT) \
+	lib_a-mmap.$(OBJEXT) lib_a-mount.$(OBJEXT) \
+	lib_a-nanosleep.$(OBJEXT) lib_a-phoenix.$(OBJEXT) \
+	lib_a-pid.$(OBJEXT) lib_a-pipe.$(OBJEXT) lib_a-poll.$(OBJEXT) \
 	lib_a-realpath.$(OBJEXT) lib_a-reboot.$(OBJEXT) \
 	lib_a-resource.$(OBJEXT) lib_a-sbrk.$(OBJEXT) \
 	lib_a-sched.$(OBJEXT) lib_a-select.$(OBJEXT) \
@@ -266,6 +267,7 @@ SOURCES = \
 	net/inet_ntoa.c \
 	net/inet_ntop.c \
 	net/inet_pton.c \
+	net/nametoindex.c \
 	net/network.c \
 	alarm.c \
 	chmod.c \
@@ -277,6 +279,7 @@ SOURCES = \
 	fcntl.c \
 	fork.c \
 	fs.c \
+	getentropy.c \
 	getmntent.c \
 	getpagesize.c \
 	groups.c \
@@ -506,6 +509,12 @@ lib_a-inet_pton.o: net/inet_pton.c
 lib_a-inet_pton.obj: net/inet_pton.c
 	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-inet_pton.obj `if test -f 'net/inet_pton.c'; then $(CYGPATH_W) 'net/inet_pton.c'; else $(CYGPATH_W) '$(srcdir)/net/inet_pton.c'; fi`
 
+lib_a-nametoindex.o: net/nametoindex.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-nametoindex.o `test -f 'net/nametoindex.c' || echo '$(srcdir)/'`net/nametoindex.c
+
+lib_a-nametoindex.obj: net/nametoindex.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-nametoindex.obj `if test -f 'net/nametoindex.c'; then $(CYGPATH_W) 'net/nametoindex.c'; else $(CYGPATH_W) '$(srcdir)/net/nametoindex.c'; fi`
+
 lib_a-network.o: net/network.c
 	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-network.o `test -f 'net/network.c' || echo '$(srcdir)/'`net/network.c
 
@@ -572,6 +581,12 @@ lib_a-fs.o: fs.c
 lib_a-fs.obj: fs.c
 	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fs.obj `if test -f 'fs.c'; then $(CYGPATH_W) 'fs.c'; else $(CYGPATH_W) '$(srcdir)/fs.c'; fi`
 
+lib_a-getentropy.o: getentropy.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-getentropy.o `test -f 'getentropy.c' || echo '$(srcdir)/'`getentropy.c
+
+lib_a-getentropy.obj: getentropy.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-getentropy.obj `if test -f 'getentropy.c'; then $(CYGPATH_W) 'getentropy.c'; else $(CYGPATH_W) '$(srcdir)/getentropy.c'; fi`
+
 lib_a-getmntent.o: getmntent.c
 	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-getmntent.o `test -f 'getmntent.c' || echo '$(srcdir)/'`getmntent.c
 
@@ -1087,6 +1102,10 @@ install-data-local:
 	$(mkinstalldirs) $(DESTDIR)$(tooldir)/include/netinet6; \
 	for i in $(srcdir)/include/netinet6/*.h; do \
 	  $(INSTALL_DATA) $$i $(DESTDIR)$(tooldir)/include/netinet6/`basename $$i`; \
+	done; \
+	$(mkinstalldirs) $(DESTDIR)$(tooldir)/include/netpacket; \
+	for i in $(srcdir)/include/netpacket/*.h; do \
+	  $(INSTALL_DATA) $$i $(DESTDIR)$(tooldir)/include/netpacket/`basename $$i`; \
 	done;
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
diff --git a/newlib/libc/sys/phoenix/getentropy.c b/newlib/libc/sys/phoenix/getentropy.c
new file mode 100644
index 0000000..097fb90
--- /dev/null
+++ b/newlib/libc/sys/phoenix/getentropy.c
@@ -0,0 +1,48 @@
+/* Copyright (c) 2016 Phoenix Systems
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+   1. Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+   2. Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+   THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+   ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+   ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+   FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+   OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+   LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+   OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+   SUCH DAMAGE.*/
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#define DEV_RANDOM      "/dev/random"
+#define MAX_ENTROPY     256
+
+int getentropy(void *buf, size_t buflen)
+{
+	if (buflen > MAX_ENTROPY) {
+		errno = -EIO;
+		return -1;
+	}
+
+    int ret = -1;
+	int fd = open(DEV_RANDOM, O_RDONLY);
+	if (fd >= 0) {
+		ret = read(fd, buf, buflen);
+		close(fd);
+	}
+
+    return (ret > 0) ? 0 : -1;
+}
diff --git a/newlib/libc/sys/phoenix/net/nametoindex.c b/newlib/libc/sys/phoenix/net/nametoindex.c
new file mode 100644
index 0000000..b11b10f
--- /dev/null
+++ b/newlib/libc/sys/phoenix/net/nametoindex.c
@@ -0,0 +1,50 @@
+/* Copyright (c) 2016 Phoenix Systems
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+   1. Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+   2. Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+   THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+   ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+   ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+   FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+   OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+   LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+   OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+   SUCH DAMAGE.*/
+
+#include "syscall.h"
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+unsigned int if_nametoindex(const char *ifname)
+{
+	if (strcmp(ifname, "eth0") != 0) {
+		errno = EINVAL;
+		return 0;
+	}
+
+	return 1;
+}
+
+char *if_indextoname(unsigned int ifindex, char *ifname)
+{
+	if (ifindex != 1) {
+		errno = ENXIO;
+		return NULL;
+	}
+
+	strcpy(ifname, "eth0");
+	return ifname;
+}
-- 
2.7.4