Added code for arguments settings, all function names defined

1 files changed, 247 insertions, 0 deletions

diff --git a/H64E-2/main.c b/H64E-2/main.c
new file mode 100644
index 0000000..8830f1d
--- /dev/null
+++ b/H64E-2/main.c
@@ -0,0 +1,247 @@
+//
+//  main.c
+//  H64E-2
+//
+//  Created by dianshi on 3/13/20.
+//  Copyright © 2020 dianshi. All rights reserved.
+//
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <getopt.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <string.h>
+#include "h64e.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+int file_open( const char *fname )
+{
+    int fd;
+
+    fd = open( fname, O_RDONLY );
+    if ( fd == -1 )
+    {
+        printf("Couldn open file %s\n", fname);
+        return -1;
+    }
+
+    return fd;
+}
+
+int file_read( int fd, char *buf, int size )
+{
+    int ret;
+
+    if ( size < 1 )
+        return -1;
+
+    ret = (int)read( fd, buf, size );
+
+    return ret;
+}
+
+int file_seek( int fd, off_t pos )
+{
+    off_t rc;
+
+    if (fd<1)
+    {
+        return -1;
+    }
+
+    rc = lseek( fd, pos, SEEK_SET );
+    if (rc == -1)
+        return -1;
+    return 0;
+
+}
+
+int file_close( int fd )
+{
+
+    close( fd );
+
+    return 0;
+}
+
+int group_name2int( char *name )
+{
+    if ( 0 == strncmp( name, "byte", 4 ) )
+    {
+        return H64E_G_BYTE;
+    }
+    if ( 0 == strncmp( name, "word", 4 ) )
+    {
+        return H64E_G_WORD;
+    }
+    if ( 0 == strncmp( name, "dword", 5 ) )
+    {
+        return H64E_G_DWORD;
+    }
+    if ( 0 == strncmp( name, "qword", 5 ) )
+    {
+        return H64E_G_QWORD;
+    }
+
+    return 1;
+}
+
+int output_name2int( char *name )
+{
+    if ( 0 == strncmp( name, "str", 3) )
+    {
+        return H64E_O_STRING;
+    }
+    if ( 0 == strncmp( name, "i8", 2) )
+    {
+        return H64E_O_INT8;
+    }
+    if ( 0 == strncmp( name, "u8", 2) )
+    {
+        return H64E_O_UINT8;
+    }
+    if ( 0 == strncmp( name, "i16", 3) )
+    {
+        return H64E_O_INT16;
+    }
+    if ( 0 == strncmp( name, "u16", 3) )
+    {
+        return H64E_O_UINT16;
+    }
+    if ( 0 == strncmp( name, "i32", 3) )
+    {
+        return H64E_O_INT32;
+    }
+    if ( 0 == strncmp( name, "u32", 3) )
+    {
+        return H64E_O_UINT32;
+    }
+    if ( 0 == strncmp( name, "i64", 3) )
+    {
+        return H64E_O_INT64;
+    }
+    if ( 0 == strncmp( name, "u64", 3) )
+    {
+        return H64E_O_UINT64;
+    }
+    return 0;
+}
+
+void helper( char *progname )
+{
+    printf("Usage: %s [OPTS] <filename>\n\n"
+        " -a - asciimode\n"
+        " -b - show offset adress\n"
+        " -o - file offset\n"
+        " -i - output hex\n"
+        " -l - length of output\n"
+        " -c - column size in byts\n"
+        " -g - datatype output: byte,word,dword\n"
+        " -e - interp data: u8,i8,u16,i16,u32,i32,u64,i64"
+        "\nVersion: 0.1 \n"
+        "\n"
+        , progname);
+}
+
+void version()
+{
+    printf("???\n");
+}
+
+
+int main(int argc, const char * argv[]) {
+    // insert code here...
+    int c;
+    int param_length = -1;
+    int param_offset = -1;
+    char *fname = NULL;
+    int fd;
+    
+    printf("H64E-2 Project started 1\n");
+    
+    //initialise structure
+    H64E_t h64e;
+    h64e_init(&h64e);
+    
+    
+    //set all params from arguments
+    /*get cmd args and set options */
+    while ( (c = getopt(argc, argv, "abo:il:vc:g:e:")) != -1 )
+    {
+        switch(c)
+        {
+        case 'a':
+            h64e.fmt.group = H64E_G_BYTE;
+            h64e.fmt.flag_output = 1;
+            h64e.fmt.output_type = H64E_O_STRING;
+            break;
+        case 'b':
+            h64e.fmt.flag_offset = 1;
+            break;
+        case 'o':
+            param_offset = atoi( optarg );
+            break;
+        case 'i':
+            h64e.fmt.group = H64E_G_BYTE;
+            h64e.fmt.flag_output = 0;
+            h64e.fmt.flag_offset = 1;
+            break;
+        case 'l':
+            param_length = atoi( optarg );
+            break;
+        case 'c':
+            h64e.fmt.column_size = atoi(optarg);
+            break;
+        case 'g':
+            h64e.fmt.group = group_name2int(optarg);
+            break;
+        case 'e':
+            h64e.fmt.flag_output = 1;
+            h64e.fmt.output_type = output_name2int(optarg);
+            break;
+        case 'v':
+            version();
+            exit(1);
+            break;
+        default:
+            helper( argv[0] );
+            exit(1);
+        }
+    }
+
+    if ( argc < 2 )
+    {
+        printf("At least one argument needed now\n");
+        helper( argv[0] );
+        return 1;
+    }
+
+    /* last argument is file name */
+    fname = argv[argc-1];
+
+    /* check params */
+    h64e_check_param( &h64e );
+
+    /* open file */
+    fd = file_open( fname );
+    if ( fd == -1 )
+    {
+        printf("Cannot open file %s\n", fname);
+        return -1;
+    }
+    
+    //register formats
+    
+    //do conversation, reading input and outputing
+    
+    //deinit all structures
+    h64e_destroy(&h64e);
+    
+    printf("Ending Execution\n");
+    return 0;
+}