Support big-endian machines.
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@ -18,6 +18,7 @@
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#ifndef ARES__DNS_H
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#define ARES__DNS_H
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#if 0
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#define DNS__16BIT(p) (((p)[0] << 8) | (p)[1])
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#define DNS__32BIT(p) (((p)[0] << 24) | ((p)[1] << 16) | \
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((p)[2] << 8) | (p)[3])
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@ -27,6 +28,12 @@
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((p)[1] = ((v) >> 16) & 0xff), \
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((p)[2] = ((v) >> 8) & 0xff), \
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((p)[3] = (v) & 0xff))
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#else /* big-endian aware versions */
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#define DNS__16BIT(p) ntohs(*(unsigned short*)(p))
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#define DNS__32BIT(p) ntohl(*(unsigned long*)(p))
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#define DNS__SET16BIT(p, v) *(unsigned short*)(p) = htons(v)
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#define DNS__SET32BIT(p, v) *(unsigned long*)(p) = htonl(v)
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#endif
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/* Macros for parsing a DNS header */
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#define DNS_HEADER_QID(h) DNS__16BIT(h)
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