From 60f08b0a4676943651bc7b66cb8531325b1c6132 Mon Sep 17 00:00:00 2001
From: FreeArtMan <dos21h@gmail.com>
Date: Tue, 24 May 2016 00:00:45 +0100
Subject: Added resize c

---
 .gitignore       |  1 +
 buf.c            | 15 +++++++++++++++
 buf.h            |  3 +++
 cmd/cmd_close.c  |  7 +++++++
 cmd/cmd_pos.c    |  2 +-
 cmd/cmd_read.c   |  3 +--
 cmd/cmd_resize.c | 40 ++++++++++++++++++++++++++++++++++++++++
 cmd/cmd_seek.c   |  2 +-
 core.c           | 26 ++++++++++++++++++++++++++
 core.h           |  1 +
 ihe.c            | 14 ++++++++------
 ihe.h            |  2 +-
 12 files changed, 105 insertions(+), 11 deletions(-)
 create mode 100644 cmd/cmd_resize.c

diff --git a/.gitignore b/.gitignore
index 313f488..d28332c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@ TODO
 test/*
 *.so
 *.a
+log.txt
diff --git a/buf.c b/buf.c
index 440ac76..d0519e5 100644
--- a/buf.c
+++ b/buf.c
@@ -11,6 +11,21 @@ buf_t* buf_init()
 }
 
 
+int buf_not_null( buf_t *bf )
+{
+
+	if ( bf == NULL )
+		return 0;
+
+	if ( bf->buf == NULL )
+		return 0;
+
+	if ( bf->buf_size < 0 )
+		return 0;
+
+	return 1;
+}
+
 int buf_size( buf_t *bf, int size )
 {
 	if (bf->buf != NULL)
diff --git a/buf.h b/buf.h
index 8ca6014..72bbc45 100644
--- a/buf.h
+++ b/buf.h
@@ -17,6 +17,9 @@ typedef struct buf_t
 create empty buffer structure
 */
 buf_t* buf_init();
+
+int buf_not_null( buf_t *bf );
+
 /*
 if empty setup new buffer
 if not empty resize?
diff --git a/cmd/cmd_close.c b/cmd/cmd_close.c
index d1d6fc7..a789cd0 100644
--- a/cmd/cmd_close.c
+++ b/cmd/cmd_close.c
@@ -22,5 +22,12 @@ int c_close(  cmd_arg_t *arg  )
 		return -1;
 	}
 
+	// clean buf
+	if ( g_buf->buf != NULL )
+	{
+		buf_zero( g_buf );
+		buf_free( g_buf );
+	}
+
 	return 0;
 }
\ No newline at end of file
diff --git a/cmd/cmd_pos.c b/cmd/cmd_pos.c
index 845d69d..272ba3f 100644
--- a/cmd/cmd_pos.c
+++ b/cmd/cmd_pos.c
@@ -19,7 +19,7 @@ int c_pos(  cmd_arg_t *arg )
 		return -1;
 	}
 
-	printf("POS:%d\n",fret);
+	printf("POS %d\n",fret);
 
 	return 0;
 }
\ No newline at end of file
diff --git a/cmd/cmd_read.c b/cmd/cmd_read.c
index 965ae5a..1a4aa89 100644
--- a/cmd/cmd_read.c
+++ b/cmd/cmd_read.c
@@ -14,8 +14,7 @@ int c_read( cmd_arg_t *arg )
 
 	if ( g_buf->buf == NULL )
 	{
-		printf("Buffer mem not allocated\n");
-		return -1;
+		buf_resize( g_buf, g_file->blk_size );
 	}
 
 	ret = file_read_blk( g_file, g_buf->buf );
diff --git a/cmd/cmd_resize.c b/cmd/cmd_resize.c
new file mode 100644
index 0000000..532c43c
--- /dev/null
+++ b/cmd/cmd_resize.c
@@ -0,0 +1,40 @@
+#include "buf.h"
+#include "core.h"
+
+#include "libcmd/cmd.h"
+#include "libcmd/cmd_parse.h"
+
+extern file_t *g_file;
+extern buf_t *g_buf;
+extern int g_flags;
+
+int c_resize( cmd_arg_t *arg  )
+{
+	int argc = arg->argc;
+	char **argv = arg->argv;
+	int *type = arg->type;
+
+	int resize;
+
+	if ( argc != 1 )
+	{
+		printf("Needed one argument\n");
+		return -1;
+	}
+
+	printf("%d %s\n",type[0],argv[0]);
+
+	if ((type[0] != CMDT_INT) && (type[0] != CMDT_HEX) )
+	{
+		printf("Unknown type of argument\n");
+		return -1;
+	}
+
+	resize = atoi( argv[0] );
+	if (resize < 0)
+		return -1;
+
+	file_resize( g_file, resize );
+
+	return 0;
+}
\ No newline at end of file
diff --git a/cmd/cmd_seek.c b/cmd/cmd_seek.c
index b563231..fd3dcf5 100644
--- a/cmd/cmd_seek.c
+++ b/cmd/cmd_seek.c
@@ -51,7 +51,7 @@ int c_seek(  cmd_arg_t *arg  )
 	{
 		fret = file_seek( g_file, offset );
 	}
-	if ( fret != 0 )
+	if ( fret < 0 )
 	{
 		printf("Cannot seek postion to %zd\n", offset);
 		return -1;
diff --git a/core.c b/core.c
index 90f8fd9..7de3085 100644
--- a/core.c
+++ b/core.c
@@ -216,6 +216,32 @@ int file_size( file_t *ft )
 }
 
 
+int file_resize( file_t *ft, size_t size )
+{
+	int ret = 0;
+	off_t cur_pos;
+	off_t cur_size;
+	off_t resize;
+	uint8_t *buf;
+
+	cur_pos = fd_pos( ft->fd );
+	cur_size = fd_size( ft->fd );
+	if (cur_size < 0)
+	{
+		return -1;
+	}
+	buf = malloc( size );
+	memset( buf, 0, size );
+	fd_seek( ft->fd, cur_size, FD_SEEK_SET );
+	resize = fd_write( ft->fd, buf, size );
+	fd_seek( ft->fd, cur_pos, FD_SEEK_SET );
+
+	ret = resize;
+
+	return ret;
+}
+
+
 int file_open( file_t *ft, const char *filename, int flags, int mode )
 {
 	int ret = 0;
diff --git a/core.h b/core.h
index da8c911..638cf3c 100644
--- a/core.h
+++ b/core.h
@@ -106,6 +106,7 @@ int     file_seek( file_t *ft, off_t offset ); //seek by offset
 int     file_seekp( file_t *ft, off_t offset );
 int     file_pos( file_t *ft );
 int     file_size( file_t *ft );
+int     file_resize( file_t *ft, size_t size );
 int	file_s_bufs( file_t *ft, unsigned int size );
 int     file_s_mode( file_t *ft, int mode );
 int     file_close( file_t *ft );
diff --git a/ihe.c b/ihe.c
index a2769f5..9e0cb20 100644
--- a/ihe.c
+++ b/ihe.c
@@ -392,16 +392,17 @@ cmd_table_t tab[] = {
 	{"open",      c_open},
 	{"close",     c_close},
 	{"info",      c_info},
-	//{"seek",      c_seek},
-	//{"pos",       c_pos},
+	{"seek",      c_seek},
+	{"pos",       c_pos},
 	{"size",      c_size},
 	{"blk",       c_blk},
-	//{"read",      c_read},
-	//{"dump",      c_dump},
-	//{"dumpx",     c_dumpx},
-	//{"dumps",     c_dumps},
+	{"read",      c_read},
+	{"dump",      c_dump},
+	{"dumpx",     c_dumpx},
+	{"dumps",     c_dumps},
 	//{"write",     c_write},
 	//{"writes",    c_writes},
+	{"resize",     c_resize},
 	{"flags",     c_flags},
 	{"manifesto", c_manifesto},
 	{"ls",        c_ls},
@@ -431,6 +432,7 @@ int main( int argc, char **argv )
 	//init basic buffer 
 	g_buf = buf_init();
 	buf_size( g_buf, DEFAULT_BLK_SIZE );
+	buf_zero( g_buf );
 
 
 	struct term_screen ts; memset( &ts, 0, sizeof(ts) );
diff --git a/ihe.h b/ihe.h
index fd2c0b2..798915a 100644
--- a/ihe.h
+++ b/ihe.h
@@ -32,7 +32,7 @@ int c_seek( cmd_arg_t *arg );
 int c_size( cmd_arg_t *arg );
 int c_write( cmd_arg_t *arg );
 int c_writes( cmd_arg_t *arg );
-
+int c_resize( cmd_arg_t *arg );
 
 
 #endif
\ No newline at end of file
-- 
cgit v1.2.3