2 files changed, 37 insertions, 5 deletions
diff --git a/userland/libc/netdb/gai_strerror.c b/userland/libc/netdb/gai_strerror.c
new file mode 100644
index 0000000..81457cb
--- /dev/null
+++ b/userland/libc/netdb/gai_strerror.c
@@ -0,0 +1,36 @@
+#include <assert.h>
+#include <netdb.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+const char *gai_strerror(int errcode) {
+  switch (errcode) {
+  case EAI_AGAIN:
+    return "The name could not be resolved at this time. Future attempts may "
+           "succeed.";
+  case EAI_BADFLAGS:
+    return "The flags had an invalid value.";
+  case EAI_FAIL:
+    return "A non-recoverable error occurred.";
+  case EAI_FAMILY:
+    return "The address family was not recognized or the address length was "
+           "invalid for the specified family.";
+  case EAI_MEMORY:
+    return "There was a memory allocation failure.";
+  case EAI_NONAME:
+    return "The name does not resolve for the supplied parameters. NI_NAMEREQD "
+           "is set and the host's name cannot be located, or both nodename and "
+           "servname were null.";
+  case EAI_SERVICE:
+    return "The service passed was not recognized for the specified socket "
+           "type.";
+  case EAI_SOCKTYPE:
+    return "The intended socket type was not recognized.";
+  case EAI_SYSTEM:
+    return "A system error occurred. The error code can be found in errno.";
+  case EAI_OVERFLOW:
+    return "An argument buffer overflowed.";
+  default:
+    return "Invalid gai error code, no error string found.";
+  }
+}
diff --git a/userland/libc/netdb/getaddrinfo.c b/userland/libc/netdb/getaddrinfo.c
index f7e89c0..f19d11a 100644
--- a/userland/libc/netdb/getaddrinfo.c
+++ b/userland/libc/netdb/getaddrinfo.c
@@ -1,6 +1,7 @@
 #include <arpa/inet.h>
 #include <assert.h>
 #include <ctype.h>
+#include <netdb.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -88,11 +89,6 @@ int connect_dns(void) {
   hints.ai_next = NULL;
 */
 
-#define EAI_AGAIN 1
-#define EAI_FAIL 2
-#define EAI_NONAME 3
-#define EAI_MEMORY 4
-
 u16 service_to_port(const char *service) {
   int is_number = 0;
   for (int i = 0; service[i]; i++) {