Move getenv_utf8() to wsutil.

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@35148 f5534014-38df-0310-8fa8-9805f1628bb7

4 files changed, 60 insertions, 7 deletions

diff --git a/wsutil/file_util.c b/wsutil/file_util.c
index f901c99b8b..6968bdd236 100644
--- a/wsutil/file_util.c
+++ b/wsutil/file_util.c
@@ -446,7 +446,8 @@ ws_stdio_freopen (const gchar *filename,
 
 /* DLL loading */
 static gboolean
-init_dll_load_paths() {
+init_dll_load_paths()
+{
       TCHAR path_w[MAX_PATH];
 
       if (program_path && system_path)
@@ -480,7 +481,8 @@ init_dll_load_paths() {
 }
 
 gboolean
-ws_init_dll_search_path() {
+ws_init_dll_search_path()
+{
       gboolean dll_dir_set = FALSE;
       wchar_t *program_path_w;
 
@@ -508,7 +510,8 @@ ws_init_dll_search_path() {
  */
 
 void *
-ws_load_library(gchar *library_name) {
+ws_load_library(gchar *library_name)
+{
       gchar   *full_path;
       wchar_t *full_path_w;
       HMODULE  dll_h;
@@ -546,7 +549,8 @@ ws_load_library(gchar *library_name) {
 }
 
 GModule *
-ws_module_open(gchar *module_name, GModuleFlags flags) {
+ws_module_open(gchar *module_name, GModuleFlags flags)
+{
       gchar   *full_path;
       GModule *mod;
 
@@ -577,3 +581,39 @@ ws_module_open(gchar *module_name, GModuleFlags flags) {
 
       return NULL;
 }
+
+/* utf8 version of getenv, needed to get win32 filename paths */
+char *
+getenv_utf8(const char *varname)
+{
+	char *envvar;
+	wchar_t *envvarw;
+	wchar_t *varnamew;
+
+	envvar = getenv(varname);
+
+	/* since GLib 2.6 we need an utf8 version of the filename */
+#if GLIB_CHECK_VERSION(2,6,0)
+	/* using the wide char version of getenv should work under all circumstances */
+
+	/* convert given varname to utf16, needed by _wgetenv */
+	varnamew = g_utf8_to_utf16(varname, -1, NULL, NULL, NULL);
+	if (varnamew == NULL) {
+		return envvar;
+	}
+
+	/* use wide char version of getenv */
+	envvarw = _wgetenv(varnamew);
+	g_free(varnamew);
+	if (envvarw == NULL) {
+		return envvar;
+	}
+
+	/* convert value to utf8 */
+	envvar = g_utf16_to_utf8(envvarw, -1, NULL, NULL, NULL);
+	/* XXX - memleak */
+#endif
+
+	return envvar;
+}
+
diff --git a/wsutil/file_util.h b/wsutil/file_util.h
index 798cea9261..4225fe5933 100644
--- a/wsutil/file_util.h
+++ b/wsutil/file_util.h
@@ -123,6 +123,12 @@ void *ws_load_library(gchar *library_name);
  * @return A handle to the DLL if found, NULL on failure.
  */
 GModule *ws_module_open(gchar *module_name, GModuleFlags flags);
+
+/*
+ * utf8 version of getenv, needed to get win32 filename paths
+ */
+extern char *getenv_utf8(const char *varname);
+
 #else /* _WIN32 */
 #define ws_read  read
 #define ws_write write
diff --git a/wsutil/libwsutil.def b/wsutil/libwsutil.def
index a0d4ed1b47..a2c3e26a5e 100644
--- a/wsutil/libwsutil.def
+++ b/wsutil/libwsutil.def
@@ -10,6 +10,7 @@
 EXPORTS
 
 ; file_util.c
+getenv_utf8
 ws_stdio_fopen
 ws_stdio_freopen
 ws_stdio_mkdir
diff --git a/wsutil/unicode-utils.c b/wsutil/unicode-utils.c
index f011d46292..80541a5784 100644
--- a/wsutil/unicode-utils.c
+++ b/wsutil/unicode-utils.c
@@ -47,7 +47,9 @@
  */
 
 /* Convert from UTF-8 to UTF-16. */
-wchar_t * utf_8to16(const char *utf8str) {
+wchar_t *
+utf_8to16(const char *utf8str)
+{
   static wchar_t *utf16buf[3];
   static int utf16buf_len[3];
   static int idx;
@@ -84,7 +86,9 @@ wchar_t * utf_8to16(const char *utf8str) {
   return utf16buf[idx];
 }
 
-void utf_8to16_snprintf(TCHAR *utf16buf, gint utf16buf_len, const gchar* fmt, ...) {
+void
+utf_8to16_snprintf(TCHAR *utf16buf, gint utf16buf_len, const gchar* fmt, ...)
+{
     va_list ap;
     gchar* dst;
 
@@ -98,7 +102,9 @@ void utf_8to16_snprintf(TCHAR *utf16buf, gint utf16buf_len, const gchar* fmt, ..
 }
 
 /* Convert from UTF-16 to UTF-8. */
-gchar * utf_16to8(const wchar_t *utf16str) {
+gchar *
+utf_16to8(const wchar_t *utf16str)
+{
   static gchar *utf8buf[3];
   static int utf8buf_len[3];
   static int idx;