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-rw-r--r--compat/mingw.c41
-rw-r--r--compat/precompose_utf8.h3
-rw-r--r--compat/vcbuild/README4
3 files changed, 43 insertions, 5 deletions
diff --git a/compat/mingw.c b/compat/mingw.c
index 6ded1c859f..858ca14a57 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -341,12 +341,44 @@ int mingw_mkdir(const char *path, int mode)
return ret;
}
+static int mingw_open_append(wchar_t const *wfilename, int oflags, ...)
+{
+ HANDLE handle;
+ int fd;
+ DWORD create = (oflags & O_CREAT) ? OPEN_ALWAYS : OPEN_EXISTING;
+
+ /* only these flags are supported */
+ if ((oflags & ~O_CREAT) != (O_WRONLY | O_APPEND))
+ return errno = ENOSYS, -1;
+
+ /*
+ * FILE_SHARE_WRITE is required to permit child processes
+ * to append to the file.
+ */
+ handle = CreateFileW(wfilename, FILE_APPEND_DATA,
+ FILE_SHARE_WRITE | FILE_SHARE_READ,
+ NULL, create, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (handle == INVALID_HANDLE_VALUE)
+ return errno = err_win_to_posix(GetLastError()), -1;
+ /*
+ * No O_APPEND here, because the CRT uses it only to reset the
+ * file pointer to EOF on write(); but that is not necessary
+ * for a file created with FILE_APPEND_DATA.
+ */
+ fd = _open_osfhandle((intptr_t)handle, O_BINARY);
+ if (fd < 0)
+ CloseHandle(handle);
+ return fd;
+}
+
int mingw_open (const char *filename, int oflags, ...)
{
+ typedef int (*open_fn_t)(wchar_t const *wfilename, int oflags, ...);
va_list args;
unsigned mode;
int fd;
wchar_t wfilename[MAX_PATH];
+ open_fn_t open_fn;
va_start(args, oflags);
mode = va_arg(args, int);
@@ -355,9 +387,14 @@ int mingw_open (const char *filename, int oflags, ...)
if (filename && !strcmp(filename, "/dev/null"))
filename = "nul";
+ if (oflags & O_APPEND)
+ open_fn = mingw_open_append;
+ else
+ open_fn = _wopen;
+
if (xutftowcs_path(wfilename, filename) < 0)
return -1;
- fd = _wopen(wfilename, oflags, mode);
+ fd = open_fn(wfilename, oflags, mode);
if (fd < 0 && (oflags & O_ACCMODE) != O_RDONLY && errno == EACCES) {
DWORD attrs = GetFileAttributesW(wfilename);
@@ -375,7 +412,7 @@ int mingw_open (const char *filename, int oflags, ...)
* CREATE_ALWAYS flag of CreateFile()).
*/
if (fd < 0 && errno == EACCES)
- fd = _wopen(wfilename, oflags & ~O_CREAT, mode);
+ fd = open_fn(wfilename, oflags & ~O_CREAT, mode);
if (fd >= 0 && set_hidden_flag(wfilename, 1))
warning("could not mark '%s' as hidden.", filename);
}
diff --git a/compat/precompose_utf8.h b/compat/precompose_utf8.h
index a94e7c4342..6f843d3e1a 100644
--- a/compat/precompose_utf8.h
+++ b/compat/precompose_utf8.h
@@ -1,4 +1,6 @@
#ifndef PRECOMPOSE_UNICODE_H
+#define PRECOMPOSE_UNICODE_H
+
#include <sys/stat.h>
#include <sys/types.h>
#include <dirent.h>
@@ -41,5 +43,4 @@ int precompose_utf8_closedir(PREC_DIR *dirp);
#define DIR PREC_DIR
#endif /* PRECOMPOSE_UNICODE_C */
-#define PRECOMPOSE_UNICODE_H
#endif /* PRECOMPOSE_UNICODE_H */
diff --git a/compat/vcbuild/README b/compat/vcbuild/README
index df8a6574c9..60fd873fe8 100644
--- a/compat/vcbuild/README
+++ b/compat/vcbuild/README
@@ -30,8 +30,8 @@ The Steps of Build Git with VS2008
the git operations.
3. Inside Git's directory run the command:
- make common-cmds.h
- to generate the common-cmds.h file needed to compile git.
+ make command-list.h
+ to generate the command-list.h file needed to compile git.
4. Then either build Git with the GNU Make Makefile in the Git projects
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