[Minios-devel] [UNIKRAFT/NEWLIB PATCH 1/3] Add proto* functions

[Vlad-Andrei BĂDOIU (78692) <vlad_andrei.badoiu@xxxxxxxxxxxxxxx>]

This patch adds endprotoent, setprotoent, getprotoent, getprotobyname and
getprotobynumber from musl release 1.1.14.

Signed-off-by: Vlad-Andrei Badoiu <vlad_andrei.badoiu@xxxxxxxxxxxxxxx>
---
 Makefile.uk |   1 +
 proto.c     | 113 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 114 insertions(+)
 create mode 100644 proto.c

diff --git a/Makefile.uk b/Makefile.uk
index 9d1b275..5450ed2 100644
--- a/Makefile.uk
+++ b/Makefile.uk
@@ -115,6 +115,7 @@ LIBNEWLIBGLUE_SRCS-y += $(LIBNEWLIBC_BASE)/time.c|glue
 LIBNEWLIBGLUE_SRCS-y += $(LIBNEWLIBC_BASE)/locale.c
 LIBNEWLIBGLUE_SRCS-y += $(LIBNEWLIBC_BASE)/dev.c
 LIBNEWLIBGLUE_SRCS-y += $(LIBNEWLIBC_BASE)/signal.c
+LIBNEWLIBGLUE_SRCS-y += $(LIBNEWLIBC_BASE)/proto.c
 
 
################################################################################
 # Newlib/libc code -- argz
diff --git a/proto.c b/proto.c
new file mode 100644
index 0000000..a16dc3b
--- /dev/null
+++ b/proto.c
@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: MIT */
+/* ----------------------------------------------------------------------
+ * Copyright © 2005-2014 Rich Felker, et al.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * ----------------------------------------------------------------------
+ */
+/* Taken from musl */
+
+#include <netdb.h>
+#include <string.h>
+
+static int idx;
+static const unsigned char protos[] = {
+       "\000ip\0"
+       "\001icmp\0"
+       "\002igmp\0"
+       "\003ggp\0"
+       "\004ipencap\0"
+       "\005st\0"
+       "\006tcp\0"
+       "\010egp\0"
+       "\014pup\0"
+       "\021udp\0"
+       "\024hmp\0"
+       "\026xns-idp\0"
+       "\033rdp\0"
+       "\035iso-tp4\0"
+       "\044xtp\0"
+       "\045ddp\0"
+       "\046idpr-cmtp\0"
+       "\051ipv6\0"
+       "\053ipv6-route\0"
+       "\054ipv6-frag\0"
+       "\055idrp\0"
+       "\056rsvp\0"
+       "\057gre\0"
+       "\062esp\0"
+       "\063ah\0"
+       "\071skip\0"
+       "\072ipv6-icmp\0"
+       "\073ipv6-nonxt\0"
+       "\074ipv6-opts\0"
+       "\111rspf\0"
+       "\121vmtp\0"
+       "\131ospf\0"
+       "\136ipip\0"
+       "\142encap\0"
+       "\147pim\0"
+       "\377raw"
+};
+
+void endprotoent(void)
+{
+       idx = 0;
+}
+
+void setprotoent(int stayopen)
+{
+       idx = 0;
+}
+
+struct protoent *getprotoent(void)
+{
+       static struct protoent p;
+       static const char *aliases;
+
+       if (idx >= sizeof(protos))
+               return NULL;
+       p.p_proto = protos[idx];
+       p.p_name = (char *)&protos[idx+1];
+       p.p_aliases = (char **)&aliases;
+       idx += strlen(p.p_name) + 2;
+       return &p;
+}
+
+struct protoent *getprotobyname(const char *name)
+{
+       struct protoent *p;
+
+       endprotoent();
+       do p = getprotoent();
+       while (p && strcmp(name, p->p_name));
+       return p;
+}
+
+struct protoent *getprotobynumber(int num)
+{
+       struct protoent *p;
+
+       endprotoent();
+       do p = getprotoent();
+       while (p && p->p_proto != num);
+       return p;
+}
+
-- 
2.21.0

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