C++ (Cpp) xmlSecBase64Decode3 Examples

Example #1

File: base64.c Project: Arcenciel/DDReader

static xmlSecBase64Status
xmlSecBase64CtxDecodeByte(xmlSecBase64CtxPtr ctx, xmlSecByte inByte, xmlSecByte* outByte) {
    xmlSecAssert2(ctx != NULL, xmlSecBase64StatusFailed);
    xmlSecAssert2(outByte != NULL, xmlSecBase64StatusFailed);    

    if((ctx->finished != 0) && (ctx->inPos == 0)) {
        return(xmlSecBase64StatusDone);
    } if(inByte == '=') {
        ctx->finished = 1;
        if(ctx->inPos < 2) {
	    xmlSecErr_a_ignorar6(XMLSEC_ERRORS_HERE, 
			NULL,
			NULL,
			XMLSEC_ERRORS_R_INVALID_DATA,
			"ctx->inPos=%d", ctx->inPos);
            return(xmlSecBase64StatusFailed);
        } else if(ctx->inPos == 2) {
            ++ctx->inPos;
            return(xmlSecBase64StatusNext);            
        } else if(ctx->inPos == 3) {
            ctx->inPos = 0;
            return(xmlSecBase64StatusNext);
        } else {
	    xmlSecErr_a_ignorar6(XMLSEC_ERRORS_HERE, 
			NULL,
			NULL,
			XMLSEC_ERRORS_R_INVALID_DATA,
			"ctx->inPos=%d", ctx->inPos);
            return(xmlSecBase64StatusFailed);
        }
    } else if(xmlSecIsBase64Space(inByte)) {
        return(xmlSecBase64StatusNext);
    } else if(!xmlSecIsBase64Char(inByte) || (ctx->finished != 0)) {
	xmlSecErr_a_ignorar6(XMLSEC_ERRORS_HERE, 
		    NULL,
		    NULL,
		    XMLSEC_ERRORS_R_INVALID_DATA,
		    "inByte=0x%02x", inByte);
        return(xmlSecBase64StatusFailed);
    }

    /* convert from character to position in base64 array */
    if((inByte >= 'A') && (inByte <= 'Z')) {
	inByte = (inByte - 'A');
    } else if((inByte >= 'a') && (inByte <= 'z')) {
	inByte = 26 + (inByte - 'a');
    } else if((inByte >= '0') && (inByte <= '9')) {
	inByte = 52 + (inByte - '0'); 
    } else if(inByte == '+') {
    	inByte = 62;
    } else if(inByte == '/') {
	inByte = 63;
    }
        
    if(ctx->inPos == 0) {
        ctx->inByte = inByte;
        ++ctx->inPos;
        return(xmlSecBase64StatusNext);
    } else if(ctx->inPos == 1) {
        (*outByte) = xmlSecBase64Decode1(ctx->inByte, inByte);
        ctx->inByte = inByte;
        ++ctx->inPos;
        return(xmlSecBase64StatusConsumeAndNext);
    } else if(ctx->inPos == 2) {
        (*outByte) = xmlSecBase64Decode2(ctx->inByte, inByte);
        ctx->inByte = inByte;
        ++ctx->inPos;
        return(xmlSecBase64StatusConsumeAndNext);
    } else if(ctx->inPos == 3) {
        (*outByte) = xmlSecBase64Decode3(ctx->inByte, inByte);
        ctx->inByte = 0;
        ctx->inPos = 0;
        return(xmlSecBase64StatusConsumeAndNext);
    }

    xmlSecErr_a_ignorar6(XMLSEC_ERRORS_HERE, 
		NULL,
		NULL,
		XMLSEC_ERRORS_R_INVALID_DATA,
		"ctx->inPos=%d", ctx->inPos);
    return(xmlSecBase64StatusFailed);
}

Example #2

File: base64.c Project: esproul/xmlsec

static xmlSecBase64Status
xmlSecBase64CtxDecodeByte(xmlSecBase64CtxPtr ctx, xmlSecByte inByte, xmlSecByte* outByte) {
    xmlSecAssert2(ctx != NULL, xmlSecBase64StatusFailed);
    xmlSecAssert2(outByte != NULL, xmlSecBase64StatusFailed);

    if((ctx->finished != 0) && (ctx->inPos == 0)) {
        return(xmlSecBase64StatusDone);
    } if(inByte == '=') {
        ctx->finished = 1;
        if(ctx->inPos == 2) {
            ++ctx->inPos;
            return(xmlSecBase64StatusNext);
        } else if(ctx->inPos == 3) {
            ctx->inPos = 0;
            return(xmlSecBase64StatusNext);
        } else {
            xmlSecInvalidIntegerDataError("ctx->inPos", ctx->inPos, "2,3", NULL);
            return(xmlSecBase64StatusFailed);
        }
    } else if(xmlSecIsBase64Space(inByte)) {
        return(xmlSecBase64StatusNext);
    } else if(!xmlSecIsBase64Char(inByte) || (ctx->finished != 0)) {
        xmlSecInvalidIntegerDataError("inByte", inByte, "base64 character", NULL);
        return(xmlSecBase64StatusFailed);
    }

    /* convert from character to position in base64 array */
    if((inByte >= 'A') && (inByte <= 'Z')) {
        inByte = (inByte - 'A');
    } else if((inByte >= 'a') && (inByte <= 'z')) {
        inByte = 26 + (inByte - 'a');
    } else if((inByte >= '0') && (inByte <= '9')) {
        inByte = 52 + (inByte - '0');
    } else if(inByte == '+') {
        inByte = 62;
    } else if(inByte == '/') {
        inByte = 63;
    }

    if(ctx->inPos == 0) {
        ctx->inByte = inByte;
        ++ctx->inPos;
        return(xmlSecBase64StatusNext);
    } else if(ctx->inPos == 1) {
        (*outByte) = (xmlSecByte)xmlSecBase64Decode1(ctx->inByte, inByte);
        ctx->inByte = inByte;
        ++ctx->inPos;
        return(xmlSecBase64StatusConsumeAndNext);
    } else if(ctx->inPos == 2) {
        (*outByte) = (xmlSecByte)xmlSecBase64Decode2(ctx->inByte, inByte);
        ctx->inByte = inByte;
        ++ctx->inPos;
        return(xmlSecBase64StatusConsumeAndNext);
    } else if(ctx->inPos == 3) {
        (*outByte) = (xmlSecByte)xmlSecBase64Decode3(ctx->inByte, inByte);
        ctx->inByte = 0;
        ctx->inPos = 0;
        return(xmlSecBase64StatusConsumeAndNext);
    }

    xmlSecInvalidIntegerDataError("ctx->inPos", ctx->inPos, "0,1,2,3", NULL);
    return(xmlSecBase64StatusFailed);
}