From b9ec8c36cda84e0cce58c9952c43ac4e99a09a4d Mon Sep 17 00:00:00 2001
From: Glauber Costa <glommer@cloudius-systems.com>
Date: Mon, 26 May 2014 16:35:52 +0400
Subject: [PATCH] libc: implement gai_strerror
Code from musl.
Signed-off-by: Glauber Costa <glommer@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
---
libc/build.mk | 1 +
libc/network/gai_strerror.cc | 23 +++++++++++++++++++++++
2 files changed, 24 insertions(+)
create mode 100644 libc/network/gai_strerror.cc
diff --git a/libc/build.mk b/libc/build.mk
index 361ee3aca..f06577ffa 100644
--- a/libc/build.mk
+++ b/libc/build.mk
@@ -377,6 +377,7 @@ libc += network/inet_pton.o
libc += network/inet_ntop.o
libc += network/proto.o
libc += network/if_indextoname.o
+libc += network/gai_strerror.o
libc += prng/rand.o
libc += prng/random.o
diff --git a/libc/network/gai_strerror.cc b/libc/network/gai_strerror.cc
new file mode 100644
index 000000000..0bf3e3797
--- /dev/null
+++ b/libc/network/gai_strerror.cc
@@ -0,0 +1,23 @@
+#include <netdb.h>
+
+static const char msgs[] =
+ "Invalid flags\0"
+ "Name does not resolve\0"
+ "Try again\0"
+ "Non-recoverable error\0"
+ "Unknown error\0"
+ "Unrecognized address family or invalid length\0"
+ "Unrecognized socket type\0"
+ "Unrecognized service\0"
+ "Unknown error\0"
+ "Out of memory\0"
+ "System error\0"
+ "Overflow\0"
+ "\0Unknown error";
+
+const char *gai_strerror(int ecode)
+{
+ const char *s;
+ for (s=msgs, ecode++; ecode && *s; ecode++, s++) for (; *s; s++);
+ return *s ? s : s+1;
+}
--
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