From 318ecf8f8264b5e3f9c53686893e26eecf52a540 Mon Sep 17 00:00:00 2001
From: FreeArtMan <dos21h@gmail.com>
Date: Sun, 29 Sep 2019 13:20:49 +0100
Subject: Easy commands pageup/pagedown added to fast list file content

---
 cmd/cmd_pagedown.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 cmd/cmd_pageup.c   | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 197 insertions(+)
 create mode 100644 cmd/cmd_pagedown.c
 create mode 100644 cmd/cmd_pageup.c

(limited to 'cmd')

diff --git a/cmd/cmd_pagedown.c b/cmd/cmd_pagedown.c
new file mode 100644
index 0000000..8c4e3c4
--- /dev/null
+++ b/cmd/cmd_pagedown.c
@@ -0,0 +1,98 @@
+#include "buf.h"
+#include "core.h"
+
+#include "libcmd/cmd.h"
+#include "libcmd/cmd_parse.h"
+
+extern file_t *g_file;
+extern Buf *g_buf;
+extern int g_flags;
+
+/*
+ * blk - show block size
+ * blk <num> - set block size
+ */
+int c_pagedown( cmd_arg_t *arg )
+{
+	int argc = arg->argc;
+	char **argv = arg->argv;
+	int *type = arg->type;
+	int ret=-1;
+	int i,j;
+
+	printf("Set file position\n");
+
+	//move position
+	int pos = file_pos(g_file);
+	printf("pos %d\n",pos);
+	printf("buf size %d\n",g_buf->size());
+	pos += g_buf->size();
+	printf("pos %d\n",pos);
+	file_seekp(g_file, pos);
+
+	//read from file
+	if (g_buf->isempty())
+	{
+		//buf_resize( g_buf, g_file->blk_size );
+		g_buf->realloc(g_file->blk_size);
+	}
+
+	printf("read file\n");
+
+	char *buf_ptr;
+	int sz;
+	g_buf->get_ptr(&buf_ptr,&sz);
+	sz = g_buf->size();
+	//printf("sz %d ptr %lx",sz,buf_ptr);
+	ret = file_read_blk( g_file, (uint8_t *)buf_ptr, sz );
+	printf("Readed %d bytes\n", ret);
+	if ( (ret >= 0) && (ret <= g_buf->size()) )
+	{
+		g_buf->set_size(ret);
+	}
+
+	//dump buffer
+	for (i=0; i<g_buf->cursize(); i+=16)
+	{
+		for (j=i; j<i+16; j++)
+		{
+			if ( j<g_buf->cursize() )
+			{
+				char c;
+				g_buf->getc(j,&c);
+				printf("%02x ",(unsigned char)c);
+			} else
+			{
+				printf("   ");
+			}
+		}
+
+		for (j=i; j<i+16; j++)
+		{
+			if ( j<g_buf->cursize() ) //wrong place move to cycle?
+			{
+				char c;
+				g_buf->getc(j,&c);
+				if ( isprint(c) )
+				{
+					
+					printf("%c",(unsigned char)c);
+				} else
+				{
+					printf("\e[7m.\e[0m");
+				}
+			}
+		}
+		printf("\n");
+	}
+	printf("\n");
+	
+
+	return 0;
+}
+
+int h_pagedown( cmd_arg_t *arg )
+{
+	printf("- move position +block_size and dumpx");
+	return 0;
+}
\ No newline at end of file
diff --git a/cmd/cmd_pageup.c b/cmd/cmd_pageup.c
new file mode 100644
index 0000000..4e0612b
--- /dev/null
+++ b/cmd/cmd_pageup.c
@@ -0,0 +1,99 @@
+#include "buf.h"
+#include "core.h"
+
+#include "libcmd/cmd.h"
+#include "libcmd/cmd_parse.h"
+
+extern file_t *g_file;
+extern Buf *g_buf;
+extern int g_flags;
+
+/*
+ * blk - show block size
+ * blk <num> - set block size
+ */
+int c_pageup( cmd_arg_t *arg )
+{
+	int argc = arg->argc;
+	char **argv = arg->argv;
+	int *type = arg->type;
+	int ret=-1;
+	int i,j;
+
+	printf("Set file position\n");
+
+	//move position
+	int pos = file_pos(g_file);
+	printf("pos %d\n",pos);
+	printf("buf size %d\n",g_buf->size());
+	pos -= g_buf->size();
+	printf("pos %d\n",pos);
+	file_seekp(g_file, pos);
+
+	//read from file
+	if (g_buf->isempty())
+	{
+		//buf_resize( g_buf, g_file->blk_size );
+		g_buf->realloc(g_file->blk_size);
+	}
+
+	printf("read file\n");
+
+	char *buf_ptr;
+	int sz;
+	g_buf->get_ptr(&buf_ptr,&sz);
+	sz = g_buf->size();
+	//printf("sz %d ptr %lx",sz,buf_ptr);
+	ret = file_read_blk( g_file, (uint8_t *)buf_ptr, sz );
+	printf("Readed %d bytes\n", ret);
+	if ( (ret >= 0) && (ret <= g_buf->size()) )
+	{
+		g_buf->set_size(ret);
+	}
+
+	//dump buffer
+	for (i=0; i<g_buf->cursize(); i+=16)
+	{
+		for (j=i; j<i+16; j++)
+		{
+			if ( j<g_buf->cursize() )
+			{
+				char c;
+				g_buf->getc(j,&c);
+				printf("%02x ",(unsigned char)c);
+			} else
+			{
+				printf("   ");
+			}
+		}
+
+		for (j=i; j<i+16; j++)
+		{
+			if ( j<g_buf->cursize() ) //wrong place move to cycle?
+			{
+				char c;
+				g_buf->getc(j,&c);
+				if ( isprint(c) )
+				{
+					
+					printf("%c",(unsigned char)c);
+				} else
+				{
+					printf("\e[7m.\e[0m");
+				}
+			}
+		}
+		printf("\n");
+	}
+	printf("\n");
+	
+
+	return 0;
+	return 0;
+}
+
+int h_pageup( cmd_arg_t *arg )
+{
+	printf("- move down by block size,read and hexdump");
+	return 0;
+}
\ No newline at end of file
-- 
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