From cc1b289394f993fa1a75b845553eea44e85e5051 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers3@gmail.com>
Date: Sun, 17 Mar 2013 16:32:35 -0500
Subject: [PATCH 1/1] Add untracked files programs/imagex-win32.{c,h}

---
 programs/imagex-win32.c | 96 +++++++++++++++++++++++++++++++++++++++++
 programs/imagex-win32.h | 27 ++++++++++++
 2 files changed, 123 insertions(+)
 create mode 100644 programs/imagex-win32.c
 create mode 100644 programs/imagex-win32.h

diff --git a/programs/imagex-win32.c b/programs/imagex-win32.c
new file mode 100644
index 00000000..3c449a77
--- /dev/null
+++ b/programs/imagex-win32.c
@@ -0,0 +1,96 @@
+
+/* Replacements for functions needed specifically by the 'imagex' program in
+ * Windows native builds */
+
+#ifndef __WIN32__
+#  error "This file contains Windows code"
+#endif
+
+#include "imagex-win32.h"
+#include <windows.h>
+#include <errno.h>
+#include <string.h>
+#include <assert.h>
+
+
+/* Replacement for glob() in Windows native builds. */
+int glob(const char *pattern, int flags,
+	 int (*errfunc)(const char *epath, int eerrno),
+	 glob_t *pglob)
+{
+	WIN32_FIND_DATA dat;
+	DWORD err;
+	HANDLE hFind;
+	int ret;
+	size_t nspaces;
+
+	/* This function does not support all functionality of the POSIX glob(),
+	 * so make sure the parameters are consistent with supported
+	 * functionality. */
+	assert(errfunc == NULL);
+	assert((flags & GLOB_ERR) == GLOB_ERR);
+	assert((flags & ~(GLOB_NOSORT | GLOB_ERR)) == 0);
+
+	hFind = FindFirstFileA(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 {
+		char *filename;
+		if (pglob->gl_pathc == nspaces) {
+			size_t new_nspaces;
+			char **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;
+		}
+		filename = strdup(dat.cFileName);
+		if (!filename)
+			goto oom;
+		pglob->gl_pathv[pglob->gl_pathc++] = filename;
+	} while (FindNextFileA(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[i]);
+}
diff --git a/programs/imagex-win32.h b/programs/imagex-win32.h
new file mode 100644
index 00000000..58441e83
--- /dev/null
+++ b/programs/imagex-win32.h
@@ -0,0 +1,27 @@
+#ifndef _IMAGEX_WIN32_H
+#define _IMAGEX_WIN32_H
+
+#include <stddef.h>
+
+typedef struct {
+	size_t gl_pathc;
+	char **gl_pathv;
+	size_t gl_offs;
+} glob_t;
+
+/* WARNING: this is a reduced functionality replacement */
+extern int glob(const char *pattern, int flags,
+		int (*errfunc)(const char *epath, int eerrno),
+		glob_t *pglob);
+
+extern void globfree(glob_t *pglob);
+
+#define	GLOB_ERR	0x1 /* Return on read errors.  */
+#define	GLOB_NOSORT	0x2 /* Don't sort the names.  */
+
+/* Error returns from `glob'.  */
+#define	GLOB_NOSPACE	1	/* Ran out of memory.  */
+#define	GLOB_ABORTED	2	/* Read error.  */
+#define	GLOB_NOMATCH	3	/* No matches found.  */
+
+#endif
-- 
2.43.0