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--- a/dns_rcip.c
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+++ b/dns_rcip.c
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@@ -17,7 +17,7 @@ static int init(char ip[64])
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x = env_get("DNSCACHEIP");
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if (x)
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while (iplen <= 60) {
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- if (*x == '.')
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+ if (*x == ' ' || *x == '\t' || *x == '\n')
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++x;
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else {
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i = ip4_scan(x,ip + iplen);
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