Making use of libjte if installed and if not ./configure --disable-libjte

Makefile.am

@@ -16,7 +16,9 @@ libisofs_libisofs_la_LDFLAGS = \
 
 # Eventually enabling system adapters for ACL and EA.
 # ts A90409: Eventually enabling use of zlib.
-libisofs_libisofs_la_CFLAGS = $(LIBACL_DEF) $(XATTR_DEF) $(ZLIB_DEF)
+# ts B00927: Eventually enabling use of libjte (Jigdo Template Extraction)
+libisofs_libisofs_la_CFLAGS = $(LIBACL_DEF) $(XATTR_DEF) $(ZLIB_DEF) \
+                              $(LIBJTE_DEF)
 
 # ts A90114 : added aaip_0_2.*
 

configure.ac

@@ -205,6 +205,18 @@ else
 fi
 AC_SUBST(ZLIB_DEF)
 
+dnl ts B00927
+AC_ARG_ENABLE(libjte,
+[  --enable-libjte           Enable use of libjte by libisofs, default=yes],
+               , enable_libjte=yes)
+if test "x$enable_libjte" = xyes; then
+    LIBJTE_DEF="-DLibisofs_with_libjtE"
+    AC_CHECK_HEADER(libjte/libjte.h, AC_CHECK_LIB(jte, libjte_new, , LIBJTE_DEF= ), LIBJTE_DEF= )
+else
+    LIBJTE_DEF=
+fi
+AC_SUBST(LIBJTE_DEF)
+
 # Library versioning normally serves a complex purpose.
 # Since libisofs obeys strict ABI backward compatibility, it needs only the
 # simple feature to declare function names "global:" or "local:". Only the

libisofs/ecma119.c

@@ -41,6 +41,10 @@
 #include <langinfo.h>
 #include <stdio.h>
 
+#ifdef Libisofs_with_libjtE
+#include <libjte/libjte.h>
+#endif
+
 /*
  * TODO #00011 : guard against bad path table usage with more than 65535 dirs
  * image with more than 65535 directories have path_table related problems
@@ -91,6 +95,29 @@ void ecma119_image_free(Ecma119Image *t)
     free(t);
 }
 
+static int show_chunk_to_jte(Ecma119Image *target, char *buf, int count)
+{
+
+#ifdef Libisofs_with_libjtE
+
+    int ret;
+
+    if (target->libjte_handle == NULL)
+        return ISO_SUCCESS;
+
+    /* >>> What is the meaning of libjte_show_data_chunk(islast) ? */
+
+    ret = libjte_show_data_chunk(target->libjte_handle, buf, BLOCK_SIZE,
+                  count / BLOCK_SIZE, 0, 
+                  target->bytes_written + (off_t) count == target->total_size);
+    if (ret <= 0)
+        return ISO_LIBJTE_FILE_FAILED;
+
+#endif /* Libisofs_with_libjtE */
+
+    return ISO_SUCCESS;
+}
+
 /**
  * Check if we should add version number ";" to the given node name.
  */
@@ -1136,6 +1163,26 @@ int write_head_part(Ecma119Image *target, int flag)
     return ISO_SUCCESS;
 }
 
+
+/* Eventually end Jigdo Template Extraction */
+static int finish_libjte(Ecma119Image *target)
+{
+#ifdef Libisofs_with_libjtE
+
+    int ret;
+
+    if (target->libjte_handle != NULL) {
+        ret = libjte_write_footer(target->libjte_handle);
+        if (ret <= 0)
+            return ISO_LIBJTE_END_FAILED;
+    }
+
+#endif /* Libisofs_with_libjtE */
+
+    return 1;
+}
+
+
 static
 void *write_function(void *arg)
 {
@@ -1167,6 +1214,10 @@ void *write_function(void *arg)
 
     iso_ring_buffer_writer_close(target->buffer, 0);
 
+    res = finish_libjte(target);
+    if (res <= 0)
+        goto write_error;
+
 #ifdef Libisofs_with_pthread_exiT
     pthread_exit(NULL);
 #else
@@ -1174,6 +1225,8 @@ void *write_function(void *arg)
 #endif
 
     write_error: ;
+    if (res != ISO_LIBJTE_END_FAILED)
+        finish_libjte(target);
     target->eff_partition_offset = 0;
     if (res == ISO_CANCELED) {
         /* canceled */
@@ -1412,7 +1465,6 @@ int ecma119_image_new(IsoImage *src, IsoWriteOpts *opts, Ecma119Image **img)
     target->j_part_root = NULL;
     target->j_part_l_path_table_pos = 0;
     target->j_part_m_path_table_pos = 0;
-
     target->input_charset = strdup(iso_get_local_charset(0));
     if (target->input_charset == NULL) {
         ret = ISO_OUT_OF_MEM;
@@ -1446,6 +1498,11 @@ int ecma119_image_new(IsoImage *src, IsoWriteOpts *opts, Ecma119Image **img)
     target->checksum_range_size = 0;
     target->opts_overwrite = NULL;
 
+#ifdef Libisofs_with_libjtE
+    target->libjte_handle = opts->libjte_handle;
+#endif /* Libisofs_with_libjtE */
+
+
     /*
      * 2. Based on those options, create needed writers: iso, joliet...
      * Each writer inits its structures and stores needed info into
@@ -1726,6 +1783,20 @@ int ecma119_image_new(IsoImage *src, IsoWriteOpts *opts, Ecma119Image **img)
     target->total_size = (off_t) target->vol_space_size * BLOCK_SIZE;
 
 
+#ifdef Libisofs_with_libjtE
+
+    /* Eventually start Jigdo Template Extraction */
+    if (target->libjte_handle != NULL) {
+        ret = libjte_write_header(target->libjte_handle);
+        if (ret <= 0) {
+            ret = ISO_LIBJTE_START_FAILED;
+            goto target_cleanup;
+        }
+    }
+    
+#endif /* Libisofs_with_libjtE */
+
+
     /* 4. Create and start writing thread */
     if (target->md5_session_checksum) {
         /* After any fake writes are done: Initialize image checksum context */
@@ -1910,6 +1981,11 @@ int iso_write(Ecma119Image *target, void *buf, size_t count)
         target->checksum_counter += count;
         iso_md5_compute(target->checksum_ctx, (char *) buf, (int) count);
     }
+
+    ret = show_chunk_to_jte(target, buf, count);
+    if (ret != ISO_SUCCESS)
+        return ret;
+
     /* total size is 0 when writing the overwrite buffer */
     if (ret > 0 && (target->total_size != (off_t) 0)){
         unsigned int kbw, kbt;
@@ -1987,6 +2063,10 @@ int iso_write_opts_new(IsoWriteOpts **opts, int profile)
     wopts->partition_secs_per_head = 0;
     wopts->partition_heads_per_cyl = 0;
 
+#ifdef Libisofs_with_libjtE
+    wopts->libjte_handle = NULL;
+#endif /* Libisofs_with_libjtE */
+
     *opts = wopts;
     return ISO_SUCCESS;
 }
@@ -1998,8 +2078,14 @@ void iso_write_opts_free(IsoWriteOpts *opts)
     }
 
     free(opts->output_charset);
-    if(opts->system_area_data != NULL)
+    if (opts->system_area_data != NULL)
         free(opts->system_area_data);
+
+#ifdef Libisofs_with_libjtE
+    if (opts->libjte_handle != NULL)
+        libjte_destroy(&(opts->libjte_handle));
+#endif /* Libisofs_with_libjtE */
+
     free(opts);
 }
 
@@ -2424,4 +2510,138 @@ int iso_write_opts_set_part_offset(IsoWriteOpts *opts,
     opts->partition_heads_per_cyl = heads_per_cyl;
     return ISO_SUCCESS;
 }
-                                  
+
+static int iso_write_opts_assert_jte_handle(IsoWriteOpts *opts)
+{
+#ifdef Libisofs_with_libjtE
+
+    int ret;
+
+    if (opts->libjte_handle == NULL) {
+        ret = libjte_new(&(opts->libjte_handle), 0);
+        if (ret <= 0 || opts->libjte_handle == NULL)
+            return ISO_OUT_OF_MEM;
+    }
+    return ISO_SUCCESS;
+
+#else
+
+    return ISO_LIBJTE_NOT_ENABLED;
+
+#endif /* ! Libisofs_with_libjtE */
+
+}
+
+/* >>> documentation: mandatory are iso_path, template_path, jigdo_path
+*/
+int iso_write_opts_set_jte_files(IsoWriteOpts *opts, char *iso_path,
+                                 char *template_path, char *jigdo_path,
+                                 char *md5_list_path)
+{
+    int ret;
+
+    ret = iso_write_opts_assert_jte_handle(opts);
+    if (ret != ISO_SUCCESS)
+        return ret;
+
+#ifdef Libisofs_with_libjtE
+    if (libjte_set_outfile(opts->libjte_handle, iso_path) <= 0)
+        return ISO_OUT_OF_MEM;
+    if (libjte_set_template_out(opts->libjte_handle, template_path) <= 0)
+        return ISO_OUT_OF_MEM;
+    if (libjte_set_jjigdo_out(opts->libjte_handle, jigdo_path) <= 0)
+        return ISO_OUT_OF_MEM;
+    if (libjte_set_jmd5_list(opts->libjte_handle, md5_list_path) <= 0)
+        return ISO_OUT_OF_MEM;
+#endif /* Libisofs_with_libjtE */
+
+    return ISO_SUCCESS;
+}
+
+/* >>> documentation : this call is not mandatory
+   >>> need representations for algorithm macros of libjte
+*/
+int iso_write_opts_set_jte_params(IsoWriteOpts *opts,
+                                  int verbose, int min_size,
+                                  char *template_compression,
+                                  char *template_checksums,
+                                  char *jigdo_checksums)
+{
+    int ret;
+
+    ret = iso_write_opts_assert_jte_handle(opts);
+    if (ret != ISO_SUCCESS)
+        return ret;
+
+#ifdef Libisofs_with_libjtE
+    libjte_set_verbose(opts->libjte_handle, verbose);
+    libjte_set_jte_min_size(opts->libjte_handle, min_size);
+
+    /* >>> Interpret template_compression , template_checksums ,
+                     jigdo_checksums
+    */;
+    
+#endif /* Libisofs_with_libjtE */
+
+    return ISO_SUCCESS;
+}
+
+int iso_write_opts_add_jte_exclude(IsoWriteOpts *opts, char *pattern)
+{
+    int ret;
+
+    ret = iso_write_opts_assert_jte_handle(opts);
+    if (ret != ISO_SUCCESS)
+        return ret;
+
+#ifdef Libisofs_with_libjtE
+
+    ret = libjte_add_exclude(opts->libjte_handle, pattern);
+    if (ret <= 0)
+        return ISO_OUT_OF_MEM;
+
+#endif /* Libisofs_with_libjtE */
+
+    return ISO_SUCCESS;
+}
+ 
+
+int iso_write_opts_add_jte_include(IsoWriteOpts *opts, char *pattern)
+{
+    int ret;
+
+    ret = iso_write_opts_assert_jte_handle(opts);
+    if (ret != ISO_SUCCESS)
+        return ret;
+
+#ifdef Libisofs_with_libjtE
+
+    ret = libjte_add_include(opts->libjte_handle, pattern);
+    if (ret <= 0)
+        return ISO_OUT_OF_MEM;
+
+#endif /* Libisofs_with_libjtE */
+
+    return ISO_SUCCESS;
+}
+ 
+
+int iso_write_opts_add_jte_mapping(IsoWriteOpts *opts, char *arg)
+{
+    int ret;
+
+    ret = iso_write_opts_assert_jte_handle(opts);
+    if (ret != ISO_SUCCESS)
+        return ret;
+
+#ifdef Libisofs_with_libjtE
+
+    ret = libjte_add_mapping(opts->libjte_handle, arg);
+    if (ret <= 0)
+        return ISO_OUT_OF_MEM;
+
+#endif /* Libisofs_with_libjtE */
+
+    return ISO_SUCCESS;
+}
+ 

libisofs/ecma119.h

@@ -324,6 +324,12 @@ struct iso_write_opts {
     /* 1 to 255, 0= disabled/default */
     int partition_heads_per_cyl;
 
+#ifdef Libisofs_with_libjtE
+    /* Parameters and state of Jigdo Template Export environment.
+    */
+    struct libjte_env *libjte_handle;
+#endif /* Libisofs_with_libjtE */
+
 };
 
 typedef struct ecma119_image Ecma119Image;
@@ -567,6 +573,10 @@ struct ecma119_image
     uint32_t j_part_l_path_table_pos;
     uint32_t j_part_m_path_table_pos;
 
+#ifdef Libisofs_with_libjtE
+    struct libjte_env *libjte_handle;
+#endif /* Libisofs_with_libjtE */
+
 };
 
 #define BP(a,b) [(b) - (a) + 1]

libisofs/filesrc.c

@@ -25,6 +25,11 @@
 #include <limits.h>
 
 
+#ifdef Libisofs_with_libjtE
+#include <libjte/libjte.h>
+#endif
+
+
 #ifndef PATH_MAX
 #define PATH_MAX Libisofs_default_path_maX
 #endif
@@ -317,6 +322,9 @@ int filesrc_writer_write_data(IsoImageWriter *writer)
     void *ctx= NULL;
     char md5[16], pre_md5[16];
     int pre_md5_valid = 0;
+#ifdef Libisofs_with_libjtE
+    int jte_begun = 0;
+#endif
 
     if (writer == NULL) {
         return ISO_ASSERT_FAILURE;
@@ -380,6 +388,19 @@ int filesrc_writer_write_data(IsoImageWriter *writer)
         }
 #endif
 
+#ifdef Libisofs_with_libjtE
+        if (t->libjte_handle != NULL) {
+            res = libjte_begin_data_file(t->libjte_handle, name,
+                                         BLOCK_SIZE, file_size);
+            if (res <= 0) {
+                filesrc_close(file);
+                ret = ISO_LIBJTE_FILE_FAILED;
+                goto ex;
+            }
+            jte_begun = 1;
+        }
+#endif /* Libisofs_with_libjtE */
+
         if (file->checksum_index > 0) {
             /* initialize file checksum */
             res = iso_md5_start(&ctx);
@@ -481,12 +502,30 @@ int filesrc_writer_write_data(IsoImageWriter *writer)
             /* Write md5 into checksum buffer at file->checksum_index */
             memcpy(t->checksum_buffer + 16 * file->checksum_index, md5, 16);
         }
+
+#ifdef Libisofs_with_libjtE
+        if (t->libjte_handle != NULL) {
+            res = libjte_end_data_file(t->libjte_handle);
+            if (res <= 0) {
+                ret = ISO_LIBJTE_FILE_FAILED;
+                goto ex;
+            }
+            jte_begun = 0;
+        }
+#endif /* Libisofs_with_libjtE */
+
     }
 
     ret = ISO_SUCCESS;
 ex:;
     if (ctx != NULL) /* avoid any memory leak */
         iso_md5_end(&ctx, md5);
+
+#ifdef Libisofs_with_libjtE
+    if (jte_begun) 
+        libjte_end_data_file(t->libjte_handle);
+#endif /* Libisofs_with_libjtE */
+
     return ret;
 }
 

libisofs/libisofs.h

@@ -1848,6 +1848,48 @@ int iso_write_opts_set_part_offset(IsoWriteOpts *opts,
                                    int secs_512_per_head, int heads_per_cyl);
 
 
+/** >>> ts B00927
+
+ * Mandatory are iso_path, template_path, jigdo_path.
+ * md5_list_path is allowed to be NULL.
+
+ * @since 0.6.38
+*/
+int iso_write_opts_set_jte_files(IsoWriteOpts *opts, char *iso_path,
+                                 char *template_path, char *jigdo_path,
+                                 char *md5_list_path);
+
+/** >>> ts B00927
+
+  >>> need representations for algorithm macros of libjte
+
+ * @since 0.6.38
+*/
+int iso_write_opts_set_jte_params(IsoWriteOpts *opts,
+                                  int verbose, int min_size,
+                                  char *template_compression,
+                                  char *template_checksums,
+                                  char *jigdo_checksums);
+
+/** >>> ts B00927
+
+ * @since 0.6.38
+*/
+int iso_write_opts_add_jte_exclude(IsoWriteOpts *opts, char *pattern);
+
+/** >>> ts B00927
+
+ * @since 0.6.38
+*/
+int iso_write_opts_add_jte_include(IsoWriteOpts *opts, char *pattern);
+
+/** >>> ts B00927
+
+ * @since 0.6.38
+*/
+int iso_write_opts_add_jte_mapping(IsoWriteOpts *opts, char *arg);
+
+
 /**
  * Inquire the start address of the file data blocks after having used
  * IsoWriteOpts with iso_image_create_burn_source().
@@ -6149,6 +6191,19 @@ int iso_md5_match(char first_md5[16], char second_md5[16]);
  */
 #define ISO_OVWRT_FIFO_TOO_SMALL   0xE830FE96
 
+/** Use of libjte was not enabled at compile time (FAILURE, HIGH, -363) */
+#define ISO_LIBJTE_NOT_ENABLED     0xE830FE95
+
+/** Failed to start up Jigdo Template Extraction (FAILURE, HIGH, -364) */
+#define ISO_LIBJTE_START_FAILED    0xE830FE94
+
+/** Failed to finish Jigdo Template Extraction (FAILURE, HIGH, -365) */
+#define ISO_LIBJTE_END_FAILED      0xE830FE93
+
+/** Failed to process file for Jigdo Template Extraction
+   (FAILURE, HIGH, -366) */
+#define ISO_LIBJTE_FILE_FAILED      0xE830FE92
+
 
 /* Internal developer note: 
    Place new error codes directly above this comment. 

libisofs/messages.c

@@ -292,6 +292,14 @@ const char *iso_error_to_msg(int errcode)
         return "Partition offset too small for first tree root.";
     case ISO_OVWRT_FIFO_TOO_SMALL:
         return "The ring buffer is too small for overwrite buffer";
+    case ISO_LIBJTE_NOT_ENABLED:
+        return "Use of libjte was not enabled at compile time";
+    case ISO_LIBJTE_START_FAILED:
+        return "Failed to start up Jigdo Template Extraction";
+    case ISO_LIBJTE_END_FAILED:
+        return "Failed to finish Jigdo Template Extraction";
+    case ISO_LIBJTE_FILE_FAILED:
+        return "Failed process file for Jigdo Template Extraction";
     default:
         return "Unknown error";
     }