dns-oarc/dnsperf
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Adding upstream version 2.5.0+debian.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-09 08:54:49 +01:00
parent 153471ed4b
commit 5d84f21420
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
24 changed files with 2037 additions and 1001 deletions

57
src/dns.c
View file

@ -52,18 +52,39 @@ const char* perf_dns_rcode_strings[] = {
perf_result_t perf_dname_fromstring(const char* str, size_t len, perf_buffer_t* target)
{
size_t label_len;
size_t label_len, at;
const char* orig_str = str;
bool is_quoted;
if (perf_buffer_availablelength(target) < len) {
return PERF_R_NOSPACE;
}
while (len) {
for (label_len = 0; label_len < len; label_len++) {
if (*(str + label_len) == '.') {
is_quoted = false;
for (label_len = 0, at = 0; at < len;) {
if (*(str + at) == '\\') {
is_quoted = true;
at++;
if (at >= len)
return PERF_R_FAILURE;
if (*(str + at) >= '0' && *(str + at) <= '9') {
at++;
if (at >= len)
return PERF_R_FAILURE;
if (*(str + at) < '0' || *(str + at) > '9')
return PERF_R_FAILURE;
at++;
if (at >= len)
return PERF_R_FAILURE;
if (*(str + at) < '0' || *(str + at) > '9')
return PERF_R_FAILURE;
}
} else if (*(str + at) == '.') {
break;
}
label_len++;
at++;
}
if (!label_len) {
// Just a dot
@ -81,9 +102,33 @@ perf_result_t perf_dname_fromstring(const char* str, size_t len, perf_buffer_t*
return PERF_R_FAILURE;
}
perf_buffer_putuint8(target, label_len);
perf_buffer_putmem(target, str, label_len);
str += label_len;
len -= label_len;
if (is_quoted) {
for (at = 0; at < len; at++) {
if (*(str + at) == '\\') {
at++;
if (at >= len)
return PERF_R_FAILURE;
if (*(str + at) >= '0' && *(str + at) <= '9') {
char b[4];
long v;
memcpy(b, str, 3);
b[3] = 0;
v = strtol(b, 0, 7);
if (v < 0 || v > 255)
return PERF_R_FAILURE;
perf_buffer_putuint8(target, (uint8_t)v);
continue;
}
}
perf_buffer_putmem(target, str + at, 1);
}
str += at;
len -= at;
} else {
perf_buffer_putmem(target, str, label_len);
str += label_len;
len -= label_len;
}
if (len < 2) {
// Last label/dot
perf_buffer_putuint8(target, 0);