New API function iso_init_with_flag().

Moved setup of locale from various places to util.c:iso_init_locale().
It is now called by the iso_init*() functions only.

libisofs/ecma119.c

@@ -954,11 +954,13 @@ int ecma119_image_new(IsoImage *src, IsoWriteOpts *opts, Ecma119Image **img)
     target->eltorito = (src->bootcat == NULL ? 0 : 1);
     target->catalog = src->bootcat;
 
+#ifdef Libisofs_setlocale_in_iniT
     /* default to locale charset */
     /* ??? ts Nov 25 2008 :
        Shouldn't this go to library initialization or even to app ?
     */
     setlocale(LC_CTYPE, "");
+#endif
 
     target->input_charset = strdup(iso_get_local_charset(0));
 

libisofs/fs_image.c

@@ -2153,10 +2153,12 @@ int iso_image_filesystem_new(IsoDataSource *src, struct iso_read_opts *opts,
     data->aaip_load = !opts->noaaip;
     data->aaip_version = -1;
 
+#ifdef Libisofs_setlocale_in_iniT
     /* ??? ts Nov 25 2008 :
        Shouldn't this go to library initialization or even to app ?
     */
     setlocale(LC_CTYPE, "");
+#endif
 
     data->local_charset = strdup(iso_get_local_charset(0));
     if (data->local_charset == NULL) {

libisofs/libisofs.h

@@ -873,13 +873,26 @@ struct iso_stream
 };
 
 /**
- * Initialize libisofs. You must call this before any usage of the library.
+ * Initialize libisofs. Before any usage of the library you must either call
+ * this function or iso_init_with_flag().
  * @return 1 on success, < 0 on error
  *
  * @since 0.6.2
  */
 int iso_init();
 
+/**
+ * Initialize libisofs. Before any usage of the library you must either call
+ * this function or iso_init() which is equivalent to iso_init_with_flag(0).
+ * @param flag
+ *      Bitfield for control purposes
+ *      bit0= do not set up locale by LC_* environment variables
+ * @return 1 on success, < 0 on error
+ *
+ * @since 0.6.18
+ */
+int iso_init_with_flag(int flag);
+
 /**
  * Finalize libisofs.
  *
@@ -4830,5 +4843,8 @@ struct burn_source {
  #define Libisofs_with_iso_iconV yes
 */
 
+/* Cleanup : make call setlocale() at init time resp. never
+*/
+#define Libisofs_setlocale_in_iniT yes
 
 #endif /*LIBISO_LIBISOFS_H_*/

libisofs/messages.c

@@ -15,6 +15,9 @@
 #include "libisofs.h"
 #include "messages.h"
 
+#include "util.h"
+
+
 /*
  * error codes are 32 bit numbers, that follow the following conventions:
  *
@@ -55,8 +58,15 @@ int abort_threshold = LIBISO_MSGS_SEV_FAILURE;
 
 struct libiso_msgs *libiso_msgr = NULL;
 
-int iso_init()
+
+/*
+  @param flag  bit0= do not set up locale by LC_* environment variables
+*/
+int iso_init_with_flag(int flag)
 {
+    if (! (flag & 1)) {
+        iso_init_locale(0);
+    }
     if (libiso_msgr == NULL) {
         if (libiso_msgs_new(&libiso_msgr, 0) <= 0)
             return ISO_FATAL_ERROR;
@@ -66,6 +76,12 @@ int iso_init()
     return 1;
 }
 
+
+int iso_init()
+{
+    return iso_init_with_flag(0);
+}
+
 void iso_finish()
 {
     libiso_msgs_destroy(&libiso_msgr, 0);

libisofs/util.c

@@ -1619,10 +1619,12 @@ char *ucs2str(const char *buf, size_t len)
 
     /* convert to local charset */
 
+#ifdef Libisofs_setlocale_in_iniT
     /* ??? ts Nov 25 2008 :
        Shouldn't this go to library initialization or even to app ?
     */
     setlocale(LC_CTYPE, "");
+#endif
 
 #ifdef Libisofs_with_iso_iconV
     conv_ret = iso_iconv_open(&conv, iso_get_local_charset(0), "UCS-2BE", 0);
@@ -1688,3 +1690,10 @@ int iso_lib_is_compatible(int major, int minor, int micro)
                    || (cminor == minor && cmicro >= micro)));
 }
 
+int iso_init_locale(int flag)
+{
+    setlocale(LC_CTYPE, "");
+    return 1;
+}
+
+

libisofs/util.h

@@ -25,6 +25,11 @@
 
 int int_pow(int base, int power);
 
+/**
+ * Set up locale by LC_* environment variables.
+ */
+int iso_init_locale(int flag);
+
 /**
  * Convert the charset encoding of a given string.
  *