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dnstap test program prints identity and version.

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This commit is contained in:
W.C.A. Wijngaards 2020-01-21 09:56:28 +01:00
parent ac362625c3
commit 7bddf97450
1 changed files with 40 additions and 0 deletions
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40
dnstap/unbound-dnstap-socket.c
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@ -45,6 +45,7 @@
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#ifdef HAVE_SYS_UN_H
#include <sys/un.h>
#endif
@ -214,6 +215,37 @@ static char* q_of_msg(ProtobufCBinaryData message)
return NULL;
}
/** convert possible string or hex data to string. malloced or NULL */
static char* possible_str(ProtobufCBinaryData str)
{
int is_str = 1;
size_t i;
for(i=0; i<str.len; i++) {
if(!isprint((unsigned char)str.data[i]))
is_str = 0;
}
if(is_str) {
char* res = malloc(str.len+1);
if(res) {
memmove(res, str.data, str.len);
res[str.len] = 0;
return res;
}
} else {
const char* hex = "0123456789ABCDEF";
char* res = malloc(str.len*2+1);
if(res) {
for(i=0; i<str.len; i++) {
res[i*2] = hex[(str.data[i]&0xf0)>>4];
res[i*2+1] = hex[str.data[i]&0x0f];
}
res[str.len*2] = 0;
return res;
}
}
return NULL;
}
/** log data frame contents */
static void log_data_frame(uint8_t* pkt, size_t len)
{
@ -255,10 +287,18 @@ static void log_data_frame(uint8_t* pkt, size_t len)
free(qinf);
if(longformat) {
char* id=NULL, *vs=NULL;
if(d->has_identity) {
id=possible_str(d->identity);
}
if(d->has_version) {
vs=possible_str(d->version);
}
if(id || vs)
printf("identity: %s%s%s\n", (id?id:""),
(id&&vs?" ":""), (vs?vs:""));
free(id);
free(vs);
}
dnstap__dnstap__free_unpacked(d, NULL);
}