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mingw: add symlink-specific error codes

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The Win32 API calls do not set `errno`; Instead, error codes for failed
operations must be obtained via the `GetLastError()` function. Git would
not know what to do with those error values, though, which is why Git's
Windows compatibility layer translates them to `errno` values.

Let's handle a couple of symlink-related error codes that will become
relevant with the upcoming support for symlinks on Windows.

Signed-off-by: Karsten Blees <karsten.blees@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Karsten Blees
2026-01-09 20:05:06 +00:00
committed by Junio C Hamano
parent 1bf1ffadc8
commit 9ac15c2ae3
1 changed files with 5 additions and 0 deletions
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5
compat/mingw.c
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@@ -102,6 +102,7 @@ int err_win_to_posix(DWORD winerr)
case ERROR_INVALID_PARAMETER: error = EINVAL; break;
case ERROR_INVALID_PASSWORD: error = EPERM; break;
case ERROR_INVALID_PRIMARY_GROUP: error = EINVAL; break;
case ERROR_INVALID_REPARSE_DATA: error = EINVAL; break;
case ERROR_INVALID_SIGNAL_NUMBER: error = EINVAL; break;
case ERROR_INVALID_TARGET_HANDLE: error = EIO; break;
case ERROR_INVALID_WORKSTATION: error = EACCES; break;
@@ -116,6 +117,7 @@ int err_win_to_posix(DWORD winerr)
case ERROR_NEGATIVE_SEEK: error = ESPIPE; break;
case ERROR_NOACCESS: error = EFAULT; break;
case ERROR_NONE_MAPPED: error = EINVAL; break;
case ERROR_NOT_A_REPARSE_POINT: error = EINVAL; break;
case ERROR_NOT_ENOUGH_MEMORY: error = ENOMEM; break;
case ERROR_NOT_READY: error = EAGAIN; break;
case ERROR_NOT_SAME_DEVICE: error = EXDEV; break;
@@ -136,6 +138,9 @@ int err_win_to_posix(DWORD winerr)
case ERROR_PIPE_NOT_CONNECTED: error = EPIPE; break;
case ERROR_PRIVILEGE_NOT_HELD: error = EACCES; break;
case ERROR_READ_FAULT: error = EIO; break;
case ERROR_REPARSE_ATTRIBUTE_CONFLICT: error = EINVAL; break;
case ERROR_REPARSE_TAG_INVALID: error = EINVAL; break;
case ERROR_REPARSE_TAG_MISMATCH: error = EINVAL; break;
case ERROR_SEEK: error = EIO; break;
case ERROR_SEEK_ON_DEVICE: error = ESPIPE; break;
case ERROR_SHARING_BUFFER_EXCEEDED: error = ENFILE; break;