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net: add doc for in4_pton()
It is not easy to use in4_pton() correctly without reading its definition, so add some doc for it. Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -107,6 +107,18 @@ static inline int xdigit2bin(char c, int delim)
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return IN6PTON_UNKNOWN;
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}
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/**
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* in4_pton - convert an IPv4 address from literal to binary representation
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* @src: the start of the IPv4 address string
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* @srclen: the length of the string, -1 means strlen(src)
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* @dst: the binary (u8[4] array) representation of the IPv4 address
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* @delim: the delimiter of the IPv4 address in @src, -1 means no delimiter
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* @end: A pointer to the end of the parsed string will be placed here
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*
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* Return one on success, return zero when any error occurs
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* and @end will point to the end of the parsed string.
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*
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*/
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int in4_pton(const char *src, int srclen,
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u8 *dst,
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int delim, const char **end)
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