fix: address code review feedback on SIZE_MAX and errno

- Include <stdint.h> to ensure SIZE_MAX is defined for MSVC
- Set errno to ENOMEM when malloc fails for better error reporting

Addresses review comments:
- https://github.com/libressl/portable/pull/1304#discussion_r3411021522
- https://github.com/libressl/portable/pull/1304#discussion_r3411041707

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/compat/dirent_msvc.h b/include/compat/dirent_msvc.h
index e8a0956..0f36803 100644
--- a/include/compat/dirent_msvc.h
+++ b/include/compat/dirent_msvc.h
@@ -47,6 +47,7 @@
 
 #include <stdarg.h>
 #include <sys/stat.h>
+#include <stdint.h>
 
 /* Indicates that d_type field is available in dirent structure */
 #define _DIRENT_HAVE_D_TYPE
@@ -215,6 +216,7 @@ _wopendir(const wchar_t *dirname)
 
                 } else {
                         /* Cannot allocate memory for search pattern */
+                        _set_errno(ENOMEM);
                         error = 1;
                 }