MARC8 decoding for yaz_iconv.

[yaz-moved-to-github.git] / util / siconvtst.c

diff --git a/util/siconvtst.c b/util/siconvtst.c
index 8852391..bc394b8 100644 (file)
--- a/util/siconvtst.c
+++ b/util/siconvtst.c
@@ -2,7 +2,7 @@
  * Copyright (c) 1997-2002, Index Data
  * See the file LICENSE for details.
  *
- * $Id: siconvtst.c,v 1.3 2002-08-27 21:45:28 adam Exp $
+ * $Id: siconvtst.c,v 1.7 2002-12-16 13:13:53 adam Exp $
  */
 
 #if HAVE_CONFIG_H
@@ -15,14 +15,15 @@
 
 #include <yaz/yaz-util.h>
 
-#define CHUNK 8
+#define CHUNK_IN 64
+#define CHUNK_OUT 64
 
-void convert (FILE *inf, yaz_iconv_t cd)
+void convert (FILE *inf, yaz_iconv_t cd, int verbose)
 {
-    char inbuf0[CHUNK], *inbuf = inbuf0;
-    char outbuf0[CHUNK], *outbuf = outbuf0;
-    size_t outbytesleft = CHUNK;
-    size_t inbytesleft = CHUNK;
+    char inbuf0[CHUNK_IN], *inbuf = inbuf0;
+    char outbuf0[CHUNK_OUT], *outbuf = outbuf0;
+    size_t inbytesleft = CHUNK_IN;
+    size_t outbytesleft = CHUNK_OUT;
     int mustread = 1;
 
     while (1)
@@ -47,6 +48,12 @@ void convert (FILE *inf, yaz_iconv_t cd)
                 inbytesleft = r;
             }
         }
+        if (verbose > 1)
+        {
+            fprintf (stderr, "yaz_iconv: inbytesleft=%d outbytesleft=%d\n",
+                     inbytesleft, outbytesleft);
+
+        }
         r = yaz_iconv (cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft);
         if (r == (size_t)(-1))
         {
@@ -61,15 +68,30 @@ void convert (FILE *inf, yaz_iconv_t cd)
                 size_t i;
                 for (i = 0; i<inbytesleft; i++)
                     inbuf0[i] = inbuf[i];
-                inbuf = inbuf0 + i;
-                inbytesleft = CHUNK - inbytesleft;
-                mustread = 1;
+
+                r = fread(inbuf0 + i, 1, CHUNK_IN - i, inf);
+                if (r != CHUNK_IN - i)
+                {
+                    if (ferror(inf))
+                    {
+                        fprintf (stderr, "yaziconv: error reading file\n");
+                        exit(6);
+                    }
+                }
+                if (r == 0)
+                {
+                    fprintf (stderr, "invalid sequence\n");
+                    return ;
+                }
+                inbytesleft += r;
+                inbuf = inbuf0;
+                mustread = 0;
             }
             else if (e == YAZ_ICONV_E2BIG) /* no more output space */
             {
                 fwrite (outbuf0, 1, outbuf - outbuf0, stdout);
                 outbuf = outbuf0;
-                outbytesleft = CHUNK;
+                outbytesleft = CHUNK_OUT;
                 mustread = 0;
             }
             else
@@ -81,11 +103,11 @@ void convert (FILE *inf, yaz_iconv_t cd)
         else
         {
             inbuf = inbuf0;
-            inbytesleft = CHUNK;
+            inbytesleft = CHUNK_IN;
 
             fwrite (outbuf0, 1, outbuf - outbuf0, stdout);
             outbuf = outbuf0;
-            outbytesleft = CHUNK;
+            outbytesleft = CHUNK_OUT;
 
             mustread = 1;
         }
@@ -95,13 +117,14 @@ void convert (FILE *inf, yaz_iconv_t cd)
 int main (int argc, char **argv)
 {
     int ret;
+    int verbose = 0;
     char *from = 0;
     char *to = 0;
     char *arg;
     yaz_iconv_t cd;
     FILE *inf = stdin;
 
-    while ((ret = options ("f:t:", argv, argc, &arg)) != -2)
+    while ((ret = options ("vf:t:", argv, argc, &arg)) != -2)
     {
         switch (ret)
         {
@@ -119,9 +142,12 @@ int main (int argc, char **argv)
         case 't':
             to = arg;
             break;
+        case 'v':
+            verbose++;
+            break;
         default:
             fprintf (stderr, "yaziconv: Usage\n"
-                     "siconv -f encoding -t encoding [file]\n");
+                     "siconv -f encoding -t encoding [-v] [file]\n");
             exit(1);
         }
     }
@@ -141,7 +167,15 @@ int main (int argc, char **argv)
         fprintf (stderr, "yaziconv: unsupported encoding\n");
         exit (5);
     }
-
-    convert (inf, cd);
+    else
+    {
+        if (verbose)
+        {
+            fprintf (stderr, "yaziconv: using %s\n",
+                     yaz_iconv_isbuiltin(cd) ? "YAZ" : "iconv");
+        }
+    }
+    convert (inf, cd, verbose);
     yaz_iconv_close (cd);
+    return 0;
 }