DNSServiceErrorType DNSSD_API DNSServiceConstructFullName
(
char *const fullName,
const char *const service, // May be NULL
const char *const regtype,
const char *const domain
)
{
const int len = !regtype ? 0 : mDNSPlatformStrLen(regtype) - DomainEndsInDot(regtype);
char *fn = fullName;
char *const lim = fullName + 1005;
const char *s = service;
const char *r = regtype;
const char *d = domain;
// regtype must be at least "x._udp" or "x._tcp"
if (len < 6 || !domain || !domain[0]) return kDNSServiceErr_BadParam;
if (!strCaseEqual((regtype + len - 4), "_tcp", 4) && !strCaseEqual((regtype + len - 4), "_udp", 4))
return kDNSServiceErr_BadParam;
if (service && *service)
{
while (*s)
{
unsigned char c = *s++; // Needs to be unsigned, or values like 0xFF will be interpreted as < 32
if (c <= ' ') // Escape non-printable characters
{
if (fn+4 >= lim) goto fail;
*fn++ = '\\';
*fn++ = '0' + (c / 100);
*fn++ = '0' + (c / 10) % 10;
c = '0' + (c ) % 10;
}
else if (c == '.' || (c == '\\')) // Escape dot and backslash literals
{
if (fn+2 >= lim) goto fail;
*fn++ = '\\';
}
else
if (fn+1 >= lim) goto fail;
*fn++ = (char)c;
}
*fn++ = '.';
}
while (*r) if (fn+1 >= lim) goto fail; else *fn++ = *r++;
if (!DomainEndsInDot(regtype)) { if (fn+1 >= lim) goto fail; else *fn++ = '.'; }
while (*d) if (fn+1 >= lim) goto fail; else *fn++ = *d++;
if (!DomainEndsInDot(domain)) { if (fn+1 >= lim) goto fail; else *fn++ = '.'; }
*fn = '\0';
return kDNSServiceErr_NoError;
fail:
*fn = '\0';
return kDNSServiceErr_BadParam;
}
Seqspec seqspec_parseLine (char *line) {
/**
Parses line into a sequence segment;
@param[in] line - something that can be parsed into a Seqspec object
@return NULL if line could not be parsed, else pointer to a Seqspec object.
This object is read-only to its users
*/
static Seqspec seqspec = NULL;
char *cp;
char *value;
int t;
char c;
int blankSkip;
int strandSeen = 0;
static Stringa s = NULL;
if (seqspec == NULL)
seqspec = seqspec_create ();
stringCreateClear(s,30);
// remove leading blanks and blanks after ':'
blankSkip = 1;
cp = line - 1;
while ((c = *++cp) != '\0') {
if (isspace (c)) {
if (blankSkip)
continue;
}
else if (c == ':')
blankSkip = 1;
else
blankSkip = 0;
stringCatChar (s,c);
}
wordSet (string (s)," \t");
if ((cp = wordGet ()) == NULL)
return NULL;
if (!seqspec_IDset (seqspec,cp))
return NULL;
seqspec->begin = 1;
seqspec->end = SEQSPEC_END;
seqspec->revcompF = 0;
// loop over remaining words of line
while ((cp = wordGet ()) != NULL) {
if (!(value = dbseqDissect (cp)))
continue;
if (strCaseEqual (cp,"begin"))
seqspec->begin = atoi (value);
if (strCaseEqual (cp,"end"))
seqspec->end = atoi (value);
if (strCaseEqual (cp,"strand"))
seqspec->revcompF = (*value == '-');
}
if (seqspec->begin <= 0)
return NULL;
if (seqspec->end != SEQSPEC_END) {
// treat e.g. begin:30 end:20 as revcomp
if (seqspec->end < seqspec->begin) {
if (strandSeen) {
warn ("seqspec: bad segment syntax at %s",seqspec->dbseqname);
return NULL;
}
t = seqspec->end;
seqspec->end = seqspec->begin;
seqspec->begin = t;
seqspec->revcompF = 1;
}
}
return seqspec;
}
int myStrCaseEqual(char* a, char* b) {
return strCaseEqual(a, b);
}
