mirror of
https://github.com/yarrick/iodine.git
synced 2024-09-07 11:37:03 +00:00
Move readname() and READ macros out of dns[d].c
This commit is contained in:
parent
b6d2d3a6bc
commit
7782693e2b
54
read.c
Normal file
54
read.c
Normal file
|
@ -0,0 +1,54 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2006 Bjorn Andersson <flex@kryo.se>, Erik Ekman <yarrick@kryo.se>
|
||||||
|
*
|
||||||
|
* Permission to use, copy, modify, and distribute this software for any
|
||||||
|
* purpose with or without fee is hereby granted, provided that the above
|
||||||
|
* copyright notice and this permission notice appear in all copies.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||||
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||||
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||||
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||||
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||||
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||||
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
int
|
||||||
|
readname(char *packet, char *dst, char *src)
|
||||||
|
{
|
||||||
|
char l;
|
||||||
|
int len;
|
||||||
|
int offset;
|
||||||
|
|
||||||
|
len = 0;
|
||||||
|
|
||||||
|
while(*src) {
|
||||||
|
l = *src++;
|
||||||
|
len++;
|
||||||
|
|
||||||
|
if(l & 0x80 && l & 0x40) {
|
||||||
|
offset = ((src[-1] & 0x3f) << 8) | src[0];
|
||||||
|
readname(packet, dst, packet + offset);
|
||||||
|
dst += strlen(dst);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
while(l) {
|
||||||
|
*dst++ = *src++;
|
||||||
|
l--;
|
||||||
|
len++;
|
||||||
|
}
|
||||||
|
|
||||||
|
*dst++ = '.';
|
||||||
|
}
|
||||||
|
|
||||||
|
*dst = '\0';
|
||||||
|
src++;
|
||||||
|
len++;
|
||||||
|
|
||||||
|
return len;
|
||||||
|
}
|
||||||
|
|
35
read.h
Normal file
35
read.h
Normal file
|
@ -0,0 +1,35 @@
|
||||||
|
/*
|
||||||
|
* Copyright (c) 2006 Bjorn Andersson <flex@kryo.se>, Erik Ekman <yarrick@kryo.se>
|
||||||
|
*
|
||||||
|
* Permission to use, copy, modify, and distribute this software for any
|
||||||
|
* purpose with or without fee is hereby granted, provided that the above
|
||||||
|
* copyright notice and this permission notice appear in all copies.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||||
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||||
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||||
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||||
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||||
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||||
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef _READ_H_
|
||||||
|
#define _READ_H_
|
||||||
|
|
||||||
|
int readname(char *, char *, char *);
|
||||||
|
|
||||||
|
#define READNAME(packet, dst, src) (src) += readname((packet), (dst), (src));
|
||||||
|
|
||||||
|
#define READSHORT(dst, src) \
|
||||||
|
memcpy(&dst, src, 2); \
|
||||||
|
(dst) = ntohs(dst); (src)+=2;
|
||||||
|
|
||||||
|
#define READLONG(dst, src) \
|
||||||
|
memcpy(&dst, src, 2); \
|
||||||
|
(dst) = ntohl(dst); (src)+=4;
|
||||||
|
|
||||||
|
#define READDATA(dst, src, len) \
|
||||||
|
memcpy((dst), (src), (len)); (src)+=(len);
|
||||||
|
|
||||||
|
#endif
|
Loading…
Reference in a new issue