[iSCSI] Produce meaningful errors on login failure

Return the most appropriate of EACCES, EPERM, ENODEV, ENOTSUP, EIO or
EINVAL depending on the exact error returned by the target, rather than
just always returning EPERM.

Also, ensure that error strings exist for these errors.

1 files changed, 10 insertions, 7 deletions

diff --git a/src/hci/strerror.c b/src/hci/strerror.c
index 6967590..74995e8 100644
--- a/src/hci/strerror.c
+++ b/src/hci/strerror.c
@@ -108,15 +108,18 @@ const char * strerror ( int errno ) {
 /** The most common errors */
 struct errortab common_errors[] __errortab = {
 	{ 0, "No error" },
-	{ ENOMEM, "Out of memory" },
+	{ EACCES, "Permission denied" },
+	{ ECANCELED, "Operation cancelled" },
+	{ ECONNRESET, "Connection reset" },
 	{ EINVAL, "Invalid argument" },
-	{ ENOSPC, "No space left on device" },
 	{ EIO, "Input/output error" },
-	{ EACCES, "Permission denied" },
-	{ ENOENT, "File not found" },
 	{ ENETUNREACH, "Network unreachable" },
-	{ ETIMEDOUT, "Connection timed out" },
-	{ EPIPE, "Broken pipe" },
-	{ ECANCELED, "Operation cancelled" },
+	{ ENODEV, "No such device" },
+	{ ENOENT, "File not found" },
 	{ ENOEXEC, "Not an executable image" },
+	{ ENOMEM, "Out of memory" },
+	{ ENOSPC, "No space left on device" },
+	{ ENOTSUP, "Not supported" },
+	{ EPERM, "Operation not permitted" },
+	{ ETIMEDOUT, "Connection timed out" },
 };