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This commit is contained in:
Bjorn Andersson 2006-08-24 22:18:24 +00:00
parent 2e6e493549
commit b52787a74b
1 changed files with 15 additions and 13 deletions
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28
read.c
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@ -20,40 +20,42 @@ static int
readname_loop(char *packet, char **src, char *dst, size_t length, size_t loop) readname_loop(char *packet, char **src, char *dst, size_t length, size_t loop)
{ {
char *dummy; char *dummy;
char *s;
char *d;
int len; int len;
char *p;
char c; char c;
if (loop <= 0) if (loop <= 0)
return 0; return 0;
len = 0; len = 0;
p = *src; s = *src;
while(*p && len < length - 2) { d = dst;
c = *p++; while(*s && len < length - 2) {
c = *s++;
/* is this a compressed label? */ /* is this a compressed label? */
if((c & 0xc0) == 0xc0) { if((c & 0xc0) == 0xc0) {
dummy = packet + (((p[-1] & 0x3f) << 8) | p[0]); dummy = packet + (((s[-1] & 0x3f) << 8) | s[0]);
len += readname_loop(packet, &dummy, dst, length - len, loop - 1); len += readname_loop(packet, &dummy, d, length - len, loop - 1);
break; break;
} }
while(c && len < length - 2) { while(c && len < length - 2) {
*dst++ = *p++; *d++ = *s++;
len++; len++;
c--; c--;
} }
if (*p != 0 && len < length - 2) if (*s != 0 && len < length - 2)
*dst++ = '.'; *d++ = '.';
else
*dst++ = '\0';
} }
(*src) = p+1; (*src) = s+1;
return strlen(dst); dst[len] = '\0';
return len;
} }
int int