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udhcp: add testing bits to dns en/decoder

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we had two bugs there at least, must have testing

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-03-24 16:43:16 +01:00
parent 702f7d6c0b
commit 3d9c69fb4f
1 changed files with 35 additions and 2 deletions
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37
networking/udhcp/domain_codec.c
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@ -6,8 +6,16 @@
* *
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details. * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/ */
#ifdef DNS_COMPR_TESTING
#include "common.h" # define FAST_FUNC /* nothing */
# define xmalloc malloc
# include <stdlib.h>
# include <stdint.h>
# include <string.h>
# include <stdio.h>
#else
# include "common.h"
#endif
#define NS_MAXDNAME 1025 /* max domain name length */ #define NS_MAXDNAME 1025 /* max domain name length */
#define NS_MAXCDNAME 255 /* max compressed domain name length */ #define NS_MAXCDNAME 255 /* max compressed domain name length */
@ -213,3 +221,28 @@ uint8_t* FAST_FUNC dname_enc(const uint8_t *cstr, int clen, const char *src, int
*retlen = d - dname + 1; *retlen = d - dname + 1;
return dname; return dname;
} }
#ifdef DNS_COMPR_TESTING
/* gcc -Wall -DDNS_COMPR_TESTING domain_codec.c -o domain_codec && ./domain_codec */
int main(int argc, char **argv)
{
int len;
uint8_t *encoded;
#define DNAME_DEC(encoded,pre) dname_dec((uint8_t*)(encoded), sizeof(encoded), (pre))
printf("'%s'\n", DNAME_DEC("\4host\3com\0", "test1:"));
printf("test2:'%s'\n", DNAME_DEC("\4host\3com\0\4host\3com\0", ""));
printf("test3:'%s'\n", DNAME_DEC("\4host\3com\0\xC0\0", ""));
printf("test4:'%s'\n", DNAME_DEC("\4host\3com\0\xC0\5", ""));
printf("test5:'%s'\n", DNAME_DEC("\4host\3com\0\xC0\5\1z\xC0\xA", ""));
#define DNAME_ENC(cache,source,lenp) dname_enc((uint8_t*)(cache), sizeof(cache), (source), (lenp))
encoded = dname_enc(NULL, 0, "test.net", &len);
printf("test6:'%s' len:%d\n", dname_dec(encoded, len, ""), len);
encoded = DNAME_ENC("\3net\0", "test.net", &len);
printf("test7:'%s' len:%d\n", dname_dec(encoded, len, ""), len);
encoded = DNAME_ENC("\4test\3net\0", "test.net", &len);
printf("test8:'%s' len:%d\n", dname_dec(encoded, len, ""), len);
return 0;
}
#endif