X-Git-Url: https://wimlib.net/git/?a=blobdiff_plain;f=src%2Fwin32_replacements.c;h=4e9df0aee8a5a538676176fd74a3d20819222513;hb=af1a9f0d89f9d4428776238a561a6a5b6900f2d4;hp=d16936ceec299415b5b4b72b66dcb80ac112ffdf;hpb=66abeba083ec882f4fac6a2d6a8ce3eef61be442;p=wimlib

diff --git a/src/win32_replacements.c b/src/win32_replacements.c
index d16936ce..4e9df0ae 100644
--- a/src/win32_replacements.c
+++ b/src/win32_replacements.c
@@ -28,12 +28,14 @@
 #  include "config.h"
 #endif
 
+#include <errno.h>
 #include <pthread.h>
 #include <shlwapi.h> /* for PathMatchSpecW() */
 #include "wimlib/win32_common.h"
 
 #include "wimlib/assert.h"
 #include "wimlib/file_io.h"
+#include "wimlib/glob.h"
 #include "wimlib/error.h"
 #include "wimlib/util.h"
 
@@ -279,7 +281,6 @@ win32_get_file_and_vol_ids(const wchar_t *path, u64 *ino_ret, u64 *dev_ret)
 		*dev_ret = file_info.dwVolumeSerialNumber;
 		ret = 0;
 	}
-out_close_handle:
 	err = GetLastError();
 	CloseHandle(h);
 	SetLastError(err);
@@ -288,5 +289,109 @@ out:
 	return ret;
 }
 
+/* Replacement for glob() in Windows native builds that operates on wide
+ * characters.  */
+int
+win32_wglob(const wchar_t *pattern, int flags,
+	    int (*errfunc)(const wchar_t *epath, int eerrno),
+	    glob_t *pglob)
+{
+	WIN32_FIND_DATAW dat;
+	DWORD err;
+	HANDLE hFind;
+	int ret;
+	size_t nspaces;
+
+	const wchar_t *backslash, *end_slash;
+	size_t prefix_len;
+
+	backslash = wcsrchr(pattern, L'\\');
+	end_slash = wcsrchr(pattern, L'/');
+
+	if (backslash > end_slash)
+		end_slash = backslash;
+
+	if (end_slash)
+		prefix_len = end_slash - pattern + 1;
+	else
+		prefix_len = 0;
+
+	/* This function does not support all functionality of the POSIX glob(),
+	 * so make sure the parameters are consistent with supported
+	 * functionality. */
+	wimlib_assert(errfunc == NULL);
+	wimlib_assert((flags & GLOB_ERR) == GLOB_ERR);
+	wimlib_assert((flags & ~(GLOB_NOSORT | GLOB_ERR)) == 0);
+
+	hFind = FindFirstFileW(pattern, &dat);
+	if (hFind == INVALID_HANDLE_VALUE) {
+		err = GetLastError();
+		if (err == ERROR_FILE_NOT_FOUND) {
+			errno = 0;
+			return GLOB_NOMATCH;
+		} else {
+			/* The other possible error codes for FindFirstFile()
+			 * are undocumented. */
+			errno = EIO;
+			return GLOB_ABORTED;
+		}
+	}
+	pglob->gl_pathc = 0;
+	pglob->gl_pathv = NULL;
+	nspaces = 0;
+	do {
+		wchar_t *path;
+		if (pglob->gl_pathc == nspaces) {
+			size_t new_nspaces;
+			wchar_t **pathv;
+
+			new_nspaces = nspaces * 2 + 1;
+			pathv = REALLOC(pglob->gl_pathv,
+					new_nspaces * sizeof(pglob->gl_pathv[0]));
+			if (!pathv)
+				goto oom;
+			pglob->gl_pathv = pathv;
+			nspaces = new_nspaces;
+		}
+		size_t filename_len = wcslen(dat.cFileName);
+		size_t len_needed = prefix_len + filename_len;
+
+		path = MALLOC((len_needed + 1) * sizeof(wchar_t));
+		if (!path)
+			goto oom;
+
+		wmemcpy(path, pattern, prefix_len);
+		wmemcpy(path + prefix_len, dat.cFileName, filename_len + 1);
+		pglob->gl_pathv[pglob->gl_pathc++] = path;
+	} while (FindNextFileW(hFind, &dat));
+	err = GetLastError();
+	CloseHandle(hFind);
+	if (err == ERROR_NO_MORE_FILES) {
+		errno = 0;
+		return 0;
+	} else {
+		/* Other possible error codes for FindNextFile() are
+		 * undocumented */
+		errno = EIO;
+		ret = GLOB_ABORTED;
+		goto fail_globfree;
+	}
+oom:
+	CloseHandle(hFind);
+	errno = ENOMEM;
+	ret = GLOB_NOSPACE;
+fail_globfree:
+	globfree(pglob);
+	return ret;
+}
+
+void
+globfree(glob_t *pglob)
+{
+	size_t i;
+	for (i = 0; i < pglob->gl_pathc; i++)
+		free(pglob->gl_pathv[i]);
+	free(pglob->gl_pathv);
+}
 
 #endif /* __WIN32__ */