Use chained reader like interface for filters instead of process interface.

4 files changed, 14 insertions, 13 deletions

diff --git a/apps/pdfapp.c b/apps/pdfapp.c
index 5a2d2322..1393d4e3 100644
--- a/apps/pdfapp.c
+++ b/apps/pdfapp.c
@@ -106,7 +106,7 @@ void pdfapp_open(pdfapp_t *app, char *filename, int fd)
 	error = pdf_openxrefwithstream(&app->xref, file, NULL);
 	if (error)
 		pdfapp_error(app, fz_rethrow(error, "cannot open document '%s'", filename));
-	fz_dropstream(file);
+	fz_close(file);
 
 	/*
 	 * Handle encrypted PDF files
diff --git a/apps/pdfclean.c b/apps/pdfclean.c
index 27c8693c..aca76e2a 100644
--- a/apps/pdfclean.c
+++ b/apps/pdfclean.c
@@ -380,7 +380,7 @@ static void copystream(fz_obj *obj, int num, int gen)
 	fprintf(out, "%d %d obj\n", num, gen);
 	fz_fprintobj(out, obj, !doexpand);
 	fprintf(out, "stream\n");
-	fwrite(buf->rp, 1, buf->wp - buf->rp, out);
+	fwrite(buf->data, 1, buf->len, out);
 	fprintf(out, "endstream\nendobj\n\n");
 
 	fz_dropbuffer(buf);
@@ -400,14 +400,14 @@ static void expandstream(fz_obj *obj, int num, int gen)
 	fz_dictdels(newdict, "Filter");
 	fz_dictdels(newdict, "DecodeParms");
 
-	newlen = fz_newint(buf->wp - buf->rp);
+	newlen = fz_newint(buf->len);
 	fz_dictputs(newdict, "Length", newlen);
 	fz_dropobj(newlen);
 
 	fprintf(out, "%d %d obj\n", num, gen);
 	fz_fprintobj(out, newdict, !doexpand);
 	fprintf(out, "stream\n");
-	fwrite(buf->rp, 1, buf->wp - buf->rp, out);
+	fwrite(buf->data, 1, buf->len, out);
 	fprintf(out, "endstream\nendobj\n\n");
 
 	fz_dropobj(newdict);
diff --git a/apps/pdfextract.c b/apps/pdfextract.c
index e0da93e6..cb10e117 100644
--- a/apps/pdfextract.c
+++ b/apps/pdfextract.c
@@ -92,8 +92,8 @@ static void savefont(fz_obj *dict, int num)
 	fz_obj *obj;
 	char *ext = "";
 	FILE *f;
-	unsigned char *p;
 	char *fontname = "font";
+	int n;
 
 	obj = fz_dictgets(dict, "FontName");
 	if (obj)
@@ -148,13 +148,14 @@ static void savefont(fz_obj *dict, int num)
 
 	f = fopen(name, "wb");
 	if (f == NULL)
-		die(fz_throw("Error creating image file"));
+		die(fz_throw("Error creating font file"));
 
-	for (p = buf->rp; p < buf->wp; p ++)
-		fprintf(f, "%c", *p);
+	n = fwrite(buf, 1, buf->len, f);
+	if (n < buf->len)
+		die(fz_throw("Error writing font file"));
 
 	if (fclose(f) < 0)
-		die(fz_throw("Error closing image file"));
+		die(fz_throw("Error closing font file"));
 
 	fz_dropbuffer(buf);
 }
diff --git a/apps/pdfshow.c b/apps/pdfshow.c
index cb15fd99..b05f6013 100644
--- a/apps/pdfshow.c
+++ b/apps/pdfshow.c
@@ -111,9 +111,9 @@ static void showstream(int num, int gen)
 
 	while (1)
 	{
-		error = fz_read(&n, stm, buf, sizeof buf);
-		if (error)
-			die(error);
+		n = fz_read(stm, buf, sizeof buf);
+		if (n < 0)
+			die(n);
 		if (n == 0)
 			break;
 		if (showbinary)
@@ -122,7 +122,7 @@ static void showstream(int num, int gen)
 			showsafe(buf, n);
 	}
 
-	fz_dropstream(stm);
+	fz_close(stm);
 }
 
 static void showobject(int num, int gen)