Defend against empty names.
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@ -33,7 +33,7 @@
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#if defined(LIBC_SCCS) && !defined(lint)
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/*static char *sccsid = "from: @(#)res_query.c 5.11 (Berkeley) 3/6/91";*/
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static char *rcsid = "$Id: res_query.c,v 1.4 1994/04/07 07:00:21 deraadt Exp $";
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static char *rcsid = "$Id: res_query.c,v 1.5 1994/06/01 19:54:07 pk Exp $";
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#endif /* LIBC_SCCS and not lint */
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#include <sys/param.h>
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@ -287,7 +287,7 @@ res_querydomain(name, domain, class, type, answer, anslen)
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printf(";; res_querydomain(%s, %s, %d, %d)\n",
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name, domain, class, type);
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#endif
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if (domain == NULL) {
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if (domain == NULL && *name != '\0') {
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/*
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* Check for trailing '.';
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* copy without '.' if present.
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