windows: Provide POSIX supplement errno values missing in MinGW

MinGW headers do not define these values, but Windows system headers do.
Windows defines them for POSIX compatibility, we do the same locally.

1 files changed, 18 insertions, 8 deletions

diff --git a/src/libstrongswan/utils/windows.c b/src/libstrongswan/utils/windows.c
index c0ae3d87a..741d199ec 100644
--- a/src/libstrongswan/utils/windows.c
+++ b/src/libstrongswan/utils/windows.c
@@ -322,9 +322,13 @@ static int wserr(int retval)
 				errno = EBADF;
 				break;
 			case WSAENETDOWN:
+				errno = ENETDOWN;
+				break;
 			case WSAENETRESET:
+				errno = ENETRESET;
+				break;
 			case WSAESHUTDOWN:
-				errno = EPIPE;
+				errno = ECONNABORTED;
 				break;
 			case WSAEACCES:
 				errno = EACCES;
@@ -333,37 +337,43 @@ static int wserr(int retval)
 				errno = EINTR;
 				break;
 			case WSAEINPROGRESS:
-				errno = EBUSY;
+				errno = EINPROGRESS;
 				break;
 			case WSAEFAULT:
 				errno = EFAULT;
 				break;
 			case WSAENOBUFS:
-				errno = ENOMEM;
+				errno = ENOBUFS;
 				break;
 			case WSAENOTSOCK:
-				errno = EINVAL;
+				errno = ENOTSOCK;
 				break;
 			case WSAEOPNOTSUPP:
-				errno = ENOSYS;
+				errno = EOPNOTSUPP;
 				break;
 			case WSAEWOULDBLOCK:
 				errno = EWOULDBLOCK;
 				break;
 			case WSAEMSGSIZE:
-				errno = ENOSPC;
+				errno = EMSGSIZE;
 				break;
 			case WSAEINVAL:
 				errno = EINVAL;
 				break;
 			case WSAENOTCONN:
+				errno = ENOTCONN;
+				break;
 			case WSAEHOSTUNREACH:
+				errno = EHOSTUNREACH;
+				break;
 			case WSAECONNABORTED:
+				errno = ECONNABORTED;
+				break;
 			case WSAECONNRESET:
-				errno = EIO;
+				errno = ECONNRESET;
 				break;
 			case WSAETIMEDOUT:
-				errno = ESRCH;
+				errno = ETIMEDOUT;
 				break;
 			default:
 				errno = ENOENT;