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move get_bit and set_bit; indicate where to convert from ASCII

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This commit is contained in:
Bob Halley
1998-12-05 01:42:30 +00:00
parent 7251d77646
commit 577179503f
1 changed files with 34 additions and 28 deletions
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62
lib/dns/name.c
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@@ -91,15 +91,44 @@ static unsigned char maptolower[] = {
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
};
#define CONVERTTOASCII(c)
#define CONVERTFROMASCII(c)
static struct dns_name root = { "", 1, 1 };
dns_name_t dns_rootname = &root;
static unsigned int get_bit(unsigned char *, unsigned int);
static void set_bit(unsigned char *, unsigned int, unsigned int);
static void set_offsets(dns_name_t, isc_boolean_t);
static void compact(dns_name_t);
/*
* Yes, get_bit and set_bit are lame. We define them here so they can
* be inlined by smart compilers.
*/
static unsigned int
get_bit(unsigned char *array, unsigned int index) {
unsigned int byte, shift;
byte = array[index / 8];
shift = 7 - (index % 8);
return ((byte >> shift) & 0x01);
}
static void
set_bit(unsigned char *array, unsigned int index, unsigned int bit) {
unsigned int byte, shift, mask;
byte = array[index / 8];
shift = 7 - (index % 8);
mask = 1 << shift;
if (bit)
array[index / 8] |= mask;
else
array[index / 8] &= (~mask & 0xFF);
}
dns_labeltype_t
dns_label_type(dns_label_t label) {
@@ -571,6 +600,7 @@ dns_name_fromtext(dns_name_t name, isc_region_t source,
if (count >= 63)
return (DNS_R_LABELTOOLONG);
count++;
CONVERTTOASCII(c);
if (downcase)
c = maptolower[(int)c];
*ndata++ = c;
@@ -596,6 +626,7 @@ dns_name_fromtext(dns_name_t name, isc_region_t source,
if (count >= 63)
return (DNS_R_LABELTOOLONG);
count++;
CONVERTTOASCII(c);
if (downcase)
c = maptolower[(int)c];
*ndata++ = c;
@@ -882,6 +913,7 @@ dns_name_fromtext(dns_name_t name, isc_region_t source,
labels += origin->labels;
while (n1 > 0) {
c = *label++;
/* 'origin' is already ASCII. */
if (downcase)
c = maptolower[(int)c];
*ndata++ = c;
@@ -1061,32 +1093,6 @@ dns_name_totext(dns_name_t name, isc_boolean_t omit_final_dot,
return (DNS_R_SUCCESS);
}
/* Yes, get_bit and set_bit are lame. */
static unsigned int
get_bit(unsigned char *array, unsigned int index) {
unsigned int byte, shift;
byte = array[index / 8];
shift = 7 - (index % 8);
return ((byte >> shift) & 0x01);
}
static void
set_bit(unsigned char *array, unsigned int index, unsigned int bit) {
unsigned int byte, shift, mask;
byte = array[index / 8];
shift = 7 - (index % 8);
mask = 1 << shift;
if (bit)
array[index / 8] |= mask;
else
array[index / 8] &= (~mask & 0xFF);
}
static void
set_offsets(dns_name_t name, isc_boolean_t set_labels) {
unsigned int offset, count, nlabels, nrem, n;