41 lines
943 B
C
41 lines
943 B
C
/* Custom InetPton implementation */
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#include <Winsock2.h>
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#include <ws2tcpip.h>
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int __stdcall
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InetPton(int Family,
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const char *pszAddrString,
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void *pAddrBuf)
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{
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IN_ADDR *addr = pAddrBuf;
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unsigned long ulTmp;
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if (Family != AF_INET) {
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// Oops! We don't support that addr family
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WSASetLastError(WSAEAFNOSUPPORT);
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return -1;
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}
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if (!pAddrBuf || !pszAddrString ||
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pszAddrString[0] == '\0') {
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WSASetLastError(WSAEFAULT);
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return -1;
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}
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// Technically we could just put the return val directly
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// into addr->S_un.S_addr, but I don't like writing bad
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// data unless absolutely necessary. So store it in a temp
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// variable, first.
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ulTmp = inet_addr(pszAddrString);
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if (ulTmp == INADDR_NONE) {
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// Not an IP address
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WSASetLastError(WSAEFAULT);
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return -1;
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}
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// S_un.S_addr is an unsigned long. Easy!
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addr->S_un.S_addr = ulTmp;
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return 0;
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}
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