From ae5749c4139982079bd35698a3c3c23e4ec9147e Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor.andersson@artifex.com>
Date: Tue, 2 Oct 2012 16:52:45 +0200
Subject: Rename mubusy to mutool.

---
 apps/pdfshow.c | 235 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 235 insertions(+)
 create mode 100644 apps/pdfshow.c

(limited to 'apps/pdfshow.c')

diff --git a/apps/pdfshow.c b/apps/pdfshow.c
new file mode 100644
index 00000000..655493f9
--- /dev/null
+++ b/apps/pdfshow.c
@@ -0,0 +1,235 @@
+/*
+ * pdfshow -- the ultimate pdf debugging tool
+ */
+
+#include "mupdf-internal.h"
+
+static pdf_document *doc = NULL;
+static fz_context *ctx = NULL;
+static int showbinary = 0;
+static int showdecode = 1;
+static int showcolumn;
+
+static void usage(void)
+{
+	fprintf(stderr, "usage: mutool show [options] file.pdf [grepable] [xref] [trailer] [pagetree] [object numbers]\n");
+	fprintf(stderr, "\t-b\tprint streams as binary data\n");
+	fprintf(stderr, "\t-e\tprint encoded streams (don't decode)\n");
+	fprintf(stderr, "\t-p\tpassword\n");
+	exit(1);
+}
+
+static void showtrailer(void)
+{
+	if (!doc)
+		fz_throw(ctx, "no file specified");
+	printf("trailer\n");
+	pdf_fprint_obj(stdout, doc->trailer, 0);
+	printf("\n");
+}
+
+static void showxref(void)
+{
+	if (!doc)
+		fz_throw(ctx, "no file specified");
+	pdf_print_xref(doc);
+	printf("\n");
+}
+
+static void showpagetree(void)
+{
+	pdf_obj *ref;
+	int count;
+	int i;
+
+	if (!doc)
+		fz_throw(ctx, "no file specified");
+
+	count = pdf_count_pages(doc);
+	for (i = 0; i < count; i++)
+	{
+		ref = doc->page_refs[i];
+		printf("page %d = %d %d R\n", i + 1, pdf_to_num(ref), pdf_to_gen(ref));
+	}
+	printf("\n");
+}
+
+static void showsafe(unsigned char *buf, int n)
+{
+	int i;
+	for (i = 0; i < n; i++) {
+		if (buf[i] == '\r' || buf[i] == '\n') {
+			putchar('\n');
+			showcolumn = 0;
+		}
+		else if (buf[i] < 32 || buf[i] > 126) {
+			putchar('.');
+			showcolumn ++;
+		}
+		else {
+			putchar(buf[i]);
+			showcolumn ++;
+		}
+		if (showcolumn == 79) {
+			putchar('\n');
+			showcolumn = 0;
+		}
+	}
+}
+
+static void showstream(int num, int gen)
+{
+	fz_stream *stm;
+	unsigned char buf[2048];
+	int n;
+
+	showcolumn = 0;
+
+	if (showdecode)
+		stm = pdf_open_stream(doc, num, gen);
+	else
+		stm = pdf_open_raw_stream(doc, num, gen);
+
+	while (1)
+	{
+		n = fz_read(stm, buf, sizeof buf);
+		if (n == 0)
+			break;
+		if (showbinary)
+			fwrite(buf, 1, n, stdout);
+		else
+			showsafe(buf, n);
+	}
+
+	fz_close(stm);
+}
+
+static void showobject(int num, int gen)
+{
+	pdf_obj *obj;
+
+	if (!doc)
+		fz_throw(ctx, "no file specified");
+
+	obj = pdf_load_object(doc, num, gen);
+
+	if (pdf_is_stream(doc, num, gen))
+	{
+		if (showbinary)
+		{
+			showstream(num, gen);
+		}
+		else
+		{
+			printf("%d %d obj\n", num, gen);
+			pdf_fprint_obj(stdout, obj, 0);
+			printf("stream\n");
+			showstream(num, gen);
+			printf("endstream\n");
+			printf("endobj\n\n");
+		}
+	}
+	else
+	{
+		printf("%d %d obj\n", num, gen);
+		pdf_fprint_obj(stdout, obj, 0);
+		printf("endobj\n\n");
+	}
+
+	pdf_drop_obj(obj);
+}
+
+static void showgrep(char *filename)
+{
+	pdf_obj *obj;
+	int i, len;
+
+	len = pdf_count_objects(doc);
+	for (i = 0; i < len; i++)
+	{
+		if (doc->table[i].type == 'n' || doc->table[i].type == 'o')
+		{
+			fz_try(ctx)
+			{
+				obj = pdf_load_object(doc, i, 0);
+			}
+			fz_catch(ctx)
+			{
+				fz_warn(ctx, "skipping object (%d 0 R)", i);
+				continue;
+			}
+
+			pdf_sort_dict(obj);
+
+			printf("%s:%d: ", filename, i);
+			pdf_fprint_obj(stdout, obj, 1);
+
+			pdf_drop_obj(obj);
+		}
+	}
+
+	printf("%s:trailer: ", filename);
+	pdf_fprint_obj(stdout, doc->trailer, 1);
+}
+
+int pdfshow_main(int argc, char **argv)
+{
+	char *password = NULL; /* don't throw errors if encrypted */
+	char *filename;
+	int c;
+
+	while ((c = fz_getopt(argc, argv, "p:be")) != -1)
+	{
+		switch (c)
+		{
+		case 'p': password = fz_optarg; break;
+		case 'b': showbinary = 1; break;
+		case 'e': showdecode = 0; break;
+		default: usage(); break;
+		}
+	}
+
+	if (fz_optind == argc)
+		usage();
+
+	filename = argv[fz_optind++];
+
+	ctx = fz_new_context(NULL, NULL, FZ_STORE_UNLIMITED);
+	if (!ctx)
+	{
+		fprintf(stderr, "cannot initialise context\n");
+		exit(1);
+	}
+
+	fz_var(doc);
+	fz_try(ctx)
+	{
+		doc = pdf_open_document_no_run(ctx, filename);
+		if (pdf_needs_password(doc))
+			if (!pdf_authenticate_password(doc, password))
+				fz_warn(ctx, "cannot authenticate password: %s", filename);
+
+		if (fz_optind == argc)
+			showtrailer();
+
+		while (fz_optind < argc)
+		{
+			switch (argv[fz_optind][0])
+			{
+			case 't': showtrailer(); break;
+			case 'x': showxref(); break;
+			case 'p': showpagetree(); break;
+			case 'g': showgrep(filename); break;
+			default: showobject(atoi(argv[fz_optind]), 0); break;
+			}
+			fz_optind++;
+		}
+	}
+	fz_catch(ctx)
+	{
+	}
+
+	pdf_close_document(doc);
+	fz_free_context(ctx);
+	return 0;
+}
-- 
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