diff options
Diffstat (limited to 'src/net')
| -rw-r--r-- | src/net/udp/dns.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/src/net/udp/dns.c b/src/net/udp/dns.c index d1435e769..124a0e492 100644 --- a/src/net/udp/dns.c +++ b/src/net/udp/dns.c @@ -222,18 +222,24 @@ static char * dns_qualify_name ( const char *string ) { * DNS names consist of "<length>element" pairs. */ static char * dns_make_name ( const char *string, char *buf ) { - char *length_byte = buf++; + char *length_byte; char c; - while ( ( c = *(string++) ) ) { - if ( c == '.' ) { - *length_byte = buf - length_byte - 1; - length_byte = buf; + length_byte = buf++; + *length_byte = 0; + do { + c = *(string++); + if ( ( c == '.' ) || ( c == '\0' ) ) { + if ( *length_byte ) { + length_byte = buf++; + *length_byte = 0; + } + } else { + *(buf++) = c; + (*length_byte)++; } - *(buf++) = c; - } - *length_byte = buf - length_byte - 1; - *(buf++) = '\0'; + } while ( c ); + return buf; } |