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/*
nast - Network analyzer sniffer tool
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "include/nast.h"
#define BYTES 16
#define SHORTS (BYTES / 2)
#define DIGITS 5
#define LINE (DIGITS * SHORTS)
void print_ascii_hex(char *data, u_int l, FILE *log)
{
u_int offset;
u_int i;
int s1, s2;
int nshorts;
char hex[BYTES*DIGITS+1], *hsp;
char ascii[BYTES+1], *asp;
row_s=0;
line_s+=3;
nshorts = l / sizeof(u_short);
offset = i = 0;
hsp = hex; asp = ascii;
while (--nshorts >= 0)
{
s1 = *data++;
s2 = *data++;
(void)snprintf(hsp, sizeof(hex) - (hsp - hex),
" %02x%02x", s1, s2);
hsp += DIGITS;
*(asp++) = (isgraph(s1) ? s1 : '.');
*(asp++) = (isgraph(s2) ? s2 : '.');
if (++i >= SHORTS)
{
*hsp = *asp = '\0';
/*fprintf(log, "\n0x%04x %-*s %s",
offset, LINE,
hex, ascii);*/
if(!graph) printf("\n");
n_print("princ",line_s,row_s,lg,"0x%04x %-*s %s",
offset, LINE,
hex, ascii);
i = 0; hsp = hex; asp = ascii;
offset += BYTES;
++line_s;
}
}
if (l & 1)
{
s1 = *data++;
(void)snprintf(hsp, sizeof(hex) - (hsp - hex),
" %02x", s1);
hsp += 3;
*(asp++) = (isgraph(s1) ? s1 : '.');
++i;
}
if (i > 0)
{
*hsp = *asp = '\0';
if(!graph) printf("\n");
n_print("princ",line_s,row_s,lg,"0x%04x %-*s %s",
offset, LINE,
hex, ascii);
++line_s;
}
}
void data_sniffo (char *data_info, u_int len, FILE *log)
{
int i,ld;
row_s = ld = 0;
if(log==stdout)
ld = 0;
else ld = 1;
line_s+=3;
if(graph && !ld)
{
if (data_info == NULL)
{
n_print("princ",line_s,row_s,lg,"NULL DATA");
++line_s;
}
for (i = 0; i < len; i++)
{
if (ispunct(data_info[i]) || isalnum(data_info[i]))
{
n_print("princ",line_s,row_s,lg,"%c",data_info[i]);
row_s++;
}
else if (data_info[i]=='\n')
{
n_print("princ",++line_s,row_s,lg,"");
row_s=0;
}
else if (data_info[i]=='\r')
row_s = row_s + 5;
else if (data_info[i]=='\t')
row_s = row_s + 3;
else
row_s++;
}
}
if(!graph || (graph && ld))
{
fputc('\n', log);
line_s-=3;
if (data_info == NULL)
fprintf(log, "NULL DATA\n");
for (i = 0; i < len; i++)
{
if (ispunct(data_info[i]) || isalnum(data_info[i]))
fputc (data_info[i], log);
else if (data_info[i]=='\n')
fputc('\n', log);
else if (data_info[i]=='\r')
fputc('\r', log);
else if (data_info[i]=='\t')
fputc ('\t', log);
else
fputc (' ', log);
}
}
}
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