CWE-ou-minkata/Sources/Plasma/NucleusLib/pnUtils/Win32/pnUtW32Addr.cpp

/*==LICENSE==*

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*==LICENSE==*/
/*****************************************************************************
*
*   $/Plasma20/Sources/Plasma/NucleusLib/pnUtils/Private/Win32/pnUtW32Addr.cpp
*   
***/

#include "../pnUtils.h"


/*****************************************************************************
*
*   Internal functions
*
***/

//===========================================================================
static NetAddressNode NodeFromString (const wchar_t * string[]) {
    // skip leading whitespace
    const wchar_t * str = *string;
    while (iswspace(*str))
        ++str;

    // This function handles partial ip addresses (61.33)
    // as well as full dotted quads. The address can be
    // terminated by whitespace or ':' as well as '\0'
    uint8_t data[4];
    * (uint32_t *) data = 0;
    for (unsigned i = sizeof(data); i--; ) {
        if (!iswdigit(*str))
            return (unsigned)-1;

        unsigned value = StrToUnsigned(str, &str, 10);
        if (value >= 256)
            return (unsigned)-1;
        data[i] = (uint8_t) value;

        if (!*str || (*str == ':') || iswspace(*str))
            break;

        static const wchar_t s_separator[] = L"\0...";
        if (*str++ != s_separator[i])
            return (unsigned)-1;
    }

    *string = str;
    return * (NetAddressNode *) &data[0];
}


/*****************************************************************************
*
*   Exports
*
***/

//===========================================================================
bool NetAddressFromString (NetAddress * addr, const wchar_t str[], uint16_t defaultPort) {
    ASSERT(addr);
    ASSERT(str);

    for (;;) {
        NetAddressNode node = NodeFromString(&str);
        if (node == (unsigned)-1)
            break;

        if (*str == L':')
            defaultPort = StrToUnsigned(str + 1, nil, 10);
   
        addr->SetPort((uint16_t)defaultPort);
        addr->SetHostLE(node);
        return true;
    }

    // address already zeroed
    return false;
}