summaryrefslogtreecommitdiffstats
path: root/cli_main.c
diff options
context:
space:
mode:
Diffstat (limited to 'cli_main.c')
-rw-r--r--cli_main.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/cli_main.c b/cli_main.c
new file mode 100644
index 00000000..a478e3d3
--- /dev/null
+++ b/cli_main.c
@@ -0,0 +1,78 @@
+/*
+ * Compile and link this with all CLI programs where the main routine
+ * should get UTF-8 arguments on Windows. In those programs, include the
+ * cli_main.h header to rename main to real_main on Windows.
+ *
+ * This is used in software licensed under the GPLv2, and its license MUST
+ * be compatible with that license.
+ *
+ * This is used in software licensed under the Apache 2.0 license, and its
+ * license MUST be compatible with that license.
+ *
+ * For that purpose, we use the MIT (X11) license.
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "cli_main.h"
+
+#ifdef _WIN32
+#include <stdlib.h>
+#include <stdio.h>
+#include <windows.h>
+
+int
+wmain(int argc, wchar_t *wc_argv[])
+{
+ char **argv;
+ int i;
+ int return_code;
+
+ argv = (char **)malloc((argc + 1) * sizeof(char *));
+ if (argv == NULL) {
+ fprintf(stderr, "Out of memory for converted argument list\n");
+ return 2;
+ }
+ for (i = 0; i < argc; i++) {
+ /*
+ * XXX = use WC_ERR_INVALID_CHARS rather than 0, and fail if
+ * the argument isn't valid UTF-16?
+ */
+ int width;
+ char *utf8_string;
+
+ width = WideCharToMultiByte(CP_UTF8, 0, wc_argv[i], -1, NULL, 0,
+ NULL, NULL);
+ if (width == 0) {
+ fprintf(stderr, "WideCharToMultiByte failed: %d\n",
+ width);
+ return 2;
+ }
+ utf8_string = malloc(width);
+ if (utf8_string == NULL) {
+ fprintf(stderr,
+ "Out of memory for converted argument list\n");
+ return 2;
+ }
+ if (WideCharToMultiByte(CP_UTF8, 0, wc_argv[i], -1, utf8_string,
+ width, NULL, NULL) == 0) {
+ fprintf(stderr, "WideCharToMultiByte failed: %d\n",
+ width);
+ return 2;
+ }
+ argv[i] = utf8_string;
+ }
+ argv[i] = NULL;
+ /*
+ * The original "main" routine was renamed to "real_main" via a macro in
+ * the cli_main.h header file since either "main" or "wmain" can be
+ * defined on Windows, but not both.
+ */
+ return_code = real_main(argc, argv);
+ for (i = 0; i < argc; i++) {
+ free(argv[i]);
+ }
+ free(argv);
+ return return_code;
+}
+#endif