libc/resolv/res_init.c

159 	char *cp, **pp;
250 		char buf[sizeof(statp->defdname)], *cp;
257 			cp = strchr(buf, '.');
258 			cp = (cp == NULL) ? buf : (cp + 1);
259 			strncpy(statp->defdname, cp,
267 	if (issetugid() == 0 && (cp = getenv("LOCALDOMAIN")) != NULL) {
268 		(void)strncpy(statp->defdname, cp, sizeof(statp->defdname) - 1);
279 		cp = statp->defdname;
281 		*pp++ = cp;
282 		for (n = 0; *cp && pp < statp->dnsrch + MAXDNSRCH; cp++) {
283 			if (*cp == '\n')	/*%< silly backwards compat */
285 			else if (*cp == ' ' || *cp == '\t') {
286 				*cp = 0;
289 				*pp++ = cp;
295 		while (*cp != '\0' && *cp != ' ' && *cp != '\t' && *cp != '\n')
296 			cp++;
297 		*cp = '\0';
317 		    cp = buf + sizeof("domain") - 1;
318 		    while (*cp == ' ' || *cp == '\t')
319 			    cp++;
320 		    if ((*cp == '\0') || (*cp == '\n'))
322 		    strncpy(statp->defdname, cp, sizeof(statp->defdname) - 1);
324 		    if ((cp = strpbrk(statp->defdname, " \t\n")) != NULL)
325 			    *cp = '\0';
333 		    cp = buf + sizeof("search") - 1;
334 		    while (*cp == ' ' || *cp == '\t')
335 			    cp++;
336 		    if ((*cp == '\0') || (*cp == '\n'))
338 		    strncpy(statp->defdname, cp, sizeof(statp->defdname) - 1);
340 		    if ((cp = strchr(statp->defdname, '\n')) != NULL)
341 			    *cp = '\0';
346 		    cp = statp->defdname;
348 		    *pp++ = cp;
349 		    for (n = 0; *cp && pp < statp->dnsrch + MAXDNSRCH; cp++) {
350 			    if (*cp == ' ' || *cp == '\t') {
351 				    *cp = 0;
354 				    *pp++ = cp;
359 		    while (*cp != '\0' && *cp != ' ' && *cp != '\t')
360 			    cp++;
361 		    *cp = '\0';
373 		    cp = buf + sizeof("nameserver") - 1;
374 		    while (*cp == ' ' || *cp == '\t')
375 			cp++;
376 		    cp[strcspn(cp, ";# \t\n")] = '\0';
377 		    if ((*cp != '\0') && (*cp != '\n')) {
383 			if (getaddrinfo(cp, sbuf, &hints, &ai) == 0 &&
409 		    cp = buf + sizeof("sortlist") - 1;
411 			while (*cp == ' ' || *cp == '\t')
412 			    cp++;
413 			if (*cp == '\0' || *cp == '\n' || *cp == ';')
415 			net = cp;
416 			while (*cp && !ISSORTMASK(*cp) && *cp != ';' &&
417 			       isascii(*cp) && !isspace((unsigned char)*cp))
418 				cp++;
419 			n = *cp;
420 			*cp = 0;
424 				*cp++ = n;
425 				net = cp;
426 				while (*cp && *cp != ';' &&
427 					isascii(*cp) &&
428 					!isspace((unsigned char)*cp))
429 				    cp++;
430 				n = *cp;
431 				*cp = 0;
454 			    *cp++ = n;
455 			    net = cp;
456 			    while (*cp && *cp != ';' &&
457 				    isascii(*cp) && !isspace(*cp))
458 				cp++;
460 			    n = *cp;
461 			    *cp = 0;
495 			*cp = n;
523 	    (cp = strchr(buf, '.')) != NULL)
524 		strcpy(statp->defdname, cp + 1);
533 		for (cp = statp->defdname; *cp; cp++)
534 			dots += (*cp == '.');
536 		cp = statp->defdname;
540 			cp = strchr(cp, '.') + 1;    /*%< we know there is one */
541 			*pp++ = cp;
557 	else if ((cp = getenv("RES_OPTIONS")) != NULL)
558 		res_setoptions(statp, cp, "env");
566 	const char *cp = options;
577 	while (*cp) {
579 		while (*cp == ' ' || *cp == '\t')
580 			cp++;
582 		if (!strncmp(cp, "ndots:", sizeof("ndots:") - 1)) {
583 			i = atoi(cp + sizeof("ndots:") - 1);
592 		} else if (!strncmp(cp, "timeout:", sizeof("timeout:") - 1)) {
593 			i = atoi(cp + sizeof("timeout:") - 1);
603 		} else if (!strncmp(cp, "retrans:", sizeof("retrans:") - 1)) {
609 			statp->retrans = atoi(cp + sizeof("retrans:") - 1);
610 		} else if (!strncmp(cp, "retry:", sizeof("retry:") - 1)){
616 			statp->retry = atoi(cp + sizeof("retry:") - 1);
618 		} else if (!strncmp(cp, "attempts:", sizeof("attempts:") - 1)){
619 			i = atoi(cp + sizeof("attempts:") - 1);
628 		} else if (!strncmp(cp, "debug", sizeof("debug") - 1)) {
637 		} else if (!strncmp(cp, "no_tld_query",
639 			   !strncmp(cp, "no-tld-query",
642 		} else if (!strncmp(cp, "inet6", sizeof("inet6") - 1)) {
644 		} else if (!strncmp(cp, "insecure1", sizeof("insecure1") - 1)) {
646 		} else if (!strncmp(cp, "insecure2", sizeof("insecure2") - 1)) {
648 		} else if (!strncmp(cp, "rotate", sizeof("rotate") - 1)) {
650 		} else if (!strncmp(cp, "no-check-names",
655 		else if (!strncmp(cp, "edns0", sizeof("edns0") - 1)) {
660 		else if (!strncmp(cp, "dname", sizeof("dname") - 1)) {
663 		else if (!strncmp(cp, "nibble:", sizeof("nibble:") - 1)) {
666 			cp += sizeof("nibble:") - 1;
667 			i = MIN(strcspn(cp, " \t"), sizeof(ext->nsuffix) - 1);
668 			strncpy(ext->nsuffix, cp, i);
671 		else if (!strncmp(cp, "nibble2:", sizeof("nibble2:") - 1)) {
674 			cp += sizeof("nibble2:") - 1;
675 			i = MIN(strcspn(cp, " \t"), sizeof(ext->nsuffix2) - 1);
676 			strncpy(ext->nsuffix2, cp, i);
679 		else if (!strncmp(cp, "v6revmode:", sizeof("v6revmode:") - 1)) {
680 			cp += sizeof("v6revmode:") - 1;
682 			if (!strncmp(cp, "single", sizeof("single") - 1)) {
684 			} else if (!strncmp(cp, "both", sizeof("both") - 1)) {
697 		while (*cp && *cp != ' ' && *cp != '\t')
698 			cp++;