miniupnp/minissdpd/printresponse.c

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/* $Id: $ */
/* vim: tabstop=4 shiftwidth=4 noexpandtab
* Project : miniupnp
* website : http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
* Author : Thomas BERNARD
* copyright (c) 2005-2016 Thomas Bernard
* This software is subjet to the conditions detailed in the
* provided LICENCE file. */
#include <stdio.h>
#include "codelength.h"
#define NOTIF_NEW 1
#define NOTIF_UPDATE 2
#define NOTIF_REMOVE 3
void printresponse(const unsigned char * resp, int n)
{
int i, l;
int notif_type;
unsigned int nresp;
const unsigned char * p;
if(n == 0)
return;
/* first, hexdump the response : */
for(i = 0; i < n; i += 16) {
printf("%06x | ", i);
for(l = i; l < n && l < (i + 16); l++)
printf("%02x ", resp[l]);
while(l < (i + 16)) {
printf(" ");
l++;
}
printf("| ");
for(l = i; l < n && l < (i + 16); l++)
putchar((resp[l] >= ' ' && resp[l] < 128) ? resp[l] : '.');
putchar('\n');
}
for(p = resp; p < resp + n; ) {
/* now parse and display all devices of response */
nresp = p[0]; /* 1st byte : number of devices in response */
if(nresp == 0xff) {
/* notification */
notif_type = p[1];
nresp = p[2];
printf("Notification : ");
switch(notif_type) {
case NOTIF_NEW: printf("new\n"); break;
case NOTIF_UPDATE: printf("update\n"); break;
case NOTIF_REMOVE: printf("remove\n"); break;
default: printf("**UNKNOWN**\n");
}
p += 3;
} else {
p++;
}
for(i = 0; i < (int)nresp; i++) {
if(p >= resp + n)
goto error;
/*l = *(p++);*/
DECODELENGTH(l, p);
if(p + l > resp + n)
goto error;
printf("%d - %.*s\n", i, l, p); /* URL */
p += l;
if(p >= resp + n)
goto error;
/*l = *(p++);*/
DECODELENGTH(l, p);
if(p + l > resp + n)
goto error;
printf(" %.*s\n", l, p); /* ST */
p += l;
if(p >= resp + n)
goto error;
/*l = *(p++);*/
DECODELENGTH(l, p);
if(p + l > resp + n)
goto error;
printf(" %.*s\n", l, p); /* USN */
p += l;
}
}
return;
error:
printf("*** WARNING : TRUNCATED RESPONSE ***\n");
}