linux-ext4 - [e2fsprogs PATCH] libext2fs: fix 32-bit Windows build

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Date:   Wed,  4 Jan 2023 01:03:01 -0800
From:   Eric Biggers <ebiggers@...nel.org>
To:     linux-ext4@...r.kernel.org
Cc:     Paulo Antonio Alvarez <pauloaalvarez@...il.com>
Subject: [e2fsprogs PATCH] libext2fs: fix 32-bit Windows build

From: Eric Biggers <ebiggers@...gle.com>

_WIN32 is the standard macro to detect Windows, regardless of 32-bit or
64-bit.  _WIN64 is for 64-bit Windows only.  Use _WIN32 where _WIN64 was
incorrectly being used.

This fixes several 32-bit Windows build errors, for example this one:

plausible.c: In function ‘print_ext2_info’:
plausible.c:109:31: error: ‘unix_io_manager’ undeclared (first use in this function); did you mean ‘undo_io_manager’?
  109 |                               unix_io_manager,
      |                               ^~~~~~~~~~~~~~~
      |                               undo_io_manager

Fixes: 86b6db9f5a43 ("libext2fs: code adaptation to use the Windows IO manager")
Cc: Paulo Antonio Alvarez <pauloaalvarez@...il.com>
Signed-off-by: Eric Biggers <ebiggers@...gle.com>
---
 lib/ext2fs/getsectsize.c | 12 ++++++------
 lib/support/plausible.c  |  2 +-
 util/subst.c             |  4 ++--
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/lib/ext2fs/getsectsize.c b/lib/ext2fs/getsectsize.c
index 3a461eb9..bd978c53 100644
--- a/lib/ext2fs/getsectsize.c
+++ b/lib/ext2fs/getsectsize.c
@@ -51,10 +51,10 @@
  */
 errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize)
 {
-#ifdef _WIN64
+#ifdef _WIN32
 	*sectsize = 512; // just guessing
 	return 0;
-#else // not _WIN64
+#else // not _WIN32
 
 	int	fd;
 
@@ -78,7 +78,7 @@ errcode_t ext2fs_get_device_sectsize(const char *file, int *sectsize)
 	close(fd);
 	return 0;
 
-#endif // ifdef _WIN64
+#endif // ifdef _WIN32
 }
 
 /*
@@ -117,11 +117,11 @@ int ext2fs_get_dio_alignment(int fd)
  */
 errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize)
 {
-#ifdef _WIN64
+#ifdef _WIN32
 
 	return ext2fs_get_device_sectsize(file, sectsize);
 
-#else // not _WIN64
+#else // not _WIN32
 
 	int	fd;
 
@@ -147,5 +147,5 @@ errcode_t ext2fs_get_device_phys_sectsize(const char *file, int *sectsize)
 	close(fd);
 	return 0;
 
-#endif // ifdef _WIN64
+#endif // ifdef _WIN32
 }
diff --git a/lib/support/plausible.c b/lib/support/plausible.c
index bbed2a70..349aa2c4 100644
--- a/lib/support/plausible.c
+++ b/lib/support/plausible.c
@@ -103,7 +103,7 @@ static void print_ext2_info(const char *device)
 	time_t			tm;
 
 	retval = ext2fs_open2(device, 0, EXT2_FLAG_64BITS, 0, 0,
-#ifdef _WIN64
+#ifdef _WIN32
 			      windows_io_manager,
 #else
 			      unix_io_manager,
diff --git a/util/subst.c b/util/subst.c
index c0eda5cf..be2a0dda 100644
--- a/util/subst.c
+++ b/util/subst.c
@@ -434,7 +434,7 @@ int main(int argc, char **argv)
 					printf("Using original atime\n");
 				set_utimes(outfn, fileno(old), tv);
 			}
-#ifndef _WIN64
+#ifndef _WIN32
 			if (ofd >= 0)
 				(void) fchmod(ofd, 0444);
 #endif
@@ -444,7 +444,7 @@ int main(int argc, char **argv)
 		} else {
 			if (verbose)
 				printf("Creating or replacing %s.\n", outfn);
-#ifndef _WIN64
+#ifndef _WIN32
 			if (ofd >= 0)
 				(void) fchmod(ofd, 0444);
 #endif
-- 
2.39.0