套接字发送二进制文件（Jpeg） [英] Socket Send Binary (Jpeg)
问题描述
我编写了一个程序，它将使用winsock同时发送text / html文件
作为jpegs。我的代码可以找到文本，但不会使用jpegs来使用
。我的代码如下。我错过了什么？可以有人
指向我正确的方向。
ifstream文件;
file.open（r.c_str（）， ios :: binary）;
char buffer [1024] ="" ;;
int BytesSent = 0;
int BytesIndex = 0 ;
while（！file.eof（））{
file.read（buffer，1024）;
int BytesLeft = strlen（buffer ）;
while（BytesLeft！= 0）{
BytesSent = send（sock，& buffer [BytesIndex]，BytesLeft，0）;
BytesLeft - = BytesSent;
BytesIndex + = BytesSent;
cout<<缓冲区<<结束;
}
}
I writing a program that will send both a text/html document as well
as jpegs using winsock. My code works find for the text, but will not
work with jpegs. My code is below. What am I missing? Can someone
point me in the right direction.
ifstream file;
file.open(r.c_str(), ios::binary);
char buffer[1024] = "";
int BytesSent = 0;
int BytesIndex = 0;
while( !file.eof() ) {
file.read(buffer, 1024);
int BytesLeft = strlen(buffer);
while(BytesLeft != 0){
BytesSent = send(sock, &buffer[BytesIndex], BytesLeft, 0);
BytesLeft -= BytesSent;
BytesIndex +=BytesSent;
cout << buffer << endl;
}
}
推荐答案
* iwasinnihon：
* iwasinnihon:
我编写的程序将同时发送text / html文件
作为使用winsock的jpegs。我的代码可以找到文本，但不会使用jpegs来使用
。我的代码如下。我错过了什么？可以有人
指向我正确的方向。
ifstream文件;
file.open（r.c_str（）， ios :: binary）;
char buffer [1024] ="" ;;
int BytesSent = 0;
int BytesIndex = 0 ;
while（！file.eof（））{
file.read（buffer，1024）;
int BytesLeft = strlen（buffer ）;
I writing a program that will send both a text/html document as well
as jpegs using winsock. My code works find for the text, but will not
work with jpegs. My code is below. What am I missing? Can someone
point me in the right direction.
ifstream file;
file.open(r.c_str(), ios::binary);
char buffer[1024] = "";
int BytesSent = 0;
int BytesIndex = 0;
while( !file.eof() ) {
file.read(buffer, 1024);
int BytesLeft = strlen(buffer);
这里。
Here.
while（BytesLeft！= 0）{
BytesSent = send（sock，& buffer [BytesIndex]，BytesLeft，0）;
BytesLeft - = BytesSent;
BytesIndex + = BytesSent;
cout<<缓冲区<<结束;
}
}
while(BytesLeft != 0){
BytesSent = send(sock, &buffer[BytesIndex], BytesLeft, 0);
BytesLeft -= BytesSent;
BytesIndex +=BytesSent;
cout << buffer << endl;
}
}
-
答：因为它弄乱了人们通常阅读文字的顺序。
问：为什么这么糟糕？
A：热门帖子。
问：usenet和电子邮件中最烦人的事情是什么？
--
A: Because it messes up the order in which people normally read text.
Q: Why is it such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?
我错过了什么吗？你告诉我什么？
2月21日晚上7点45分，Alf P. Steinbach < a ... @ start.nowrote：
Am I missing something? What are you telling me?
On Feb 21, 7:45 pm, "Alf P. Steinbach" <a...@start.nowrote:
* iwasinnihon：
* iwasinnihon:
我写一个程序这将使用winsock发送文本/ html文档以及
作为jpegs。我的代码可以找到文本，但不会使用jpegs来使用
。我的代码如下。我错过了什么？可以有人
指向我正确的方向。
I writing a program that will send both a text/html document as well
as jpegs using winsock. My code works find for the text, but will not
work with jpegs. My code is below. What am I missing? Can someone
point me in the right direction.
ifstream file;
file.open（r.c_str（），ios :: binary）;
char buffer [1024] ="" ;;
int BytesSent = 0;
int BytesIndex = 0;
while（！file.eof（））{
file.read（buffer，1024）;
int BytesLeft = strlen（buffer）;
ifstream file;
file.open(r.c_str(), ios::binary);
char buffer[1024] = "";
int BytesSent = 0;
int BytesIndex = 0;
while( !file.eof() ) {
file.read(buffer, 1024);
int BytesLeft = strlen(buffer);
这里。
Here.
while（BytesLeft！= 0）{
BytesSent = send（sock，& buffer [BytesIndex]，BytesLeft，0）;
BytesLeft - = BytesSent;
BytesIndex + = BytesSent;
cout<<缓冲区<<结束;
}
}
while(BytesLeft != 0){
BytesSent = send(sock, &buffer[BytesIndex], BytesLeft, 0);
BytesLeft -= BytesSent;
BytesIndex +=BytesSent;
cout << buffer << endl;
}
}
-
答：因为它弄乱了人们通常阅读文字的顺序。
问：为什么这么糟糕？
A：热门帖子。
问：usenet和电子邮件中最烦人的事情是什么？
--
A: Because it messes up the order in which people normally read text.
Q: Why is it such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?
iwasinnihon写道：
请不要发帖。
iwasinnihon wrote:
Please don''t top-post.
2月21日晚上7:45，Alf P. Steinbach < a ... @ start.nowrote：
On Feb 21, 7:45 pm, "Alf P. Steinbach" <a...@start.nowrote:
>> * iwasinnihon：
>>* iwasinnihon:
>>>我编写的程序将使用winsock同时发送文本/ html文档作为jpegs。我的代码可以找到文本，但不会使用jpeg。我的代码如下。我错过了什么？有人可以指出我正确的方向。
>>>I writing a program that will send both a text/html document as well
as jpegs using winsock. My code works find for the text, but will not
work with jpegs. My code is below. What am I missing? Can someone
point me in the right direction.
>>> ifstream文件;
file.open（r.c_str（），ios :: binary）;
char buffer [1024] ="" ;;
int BytesSent = 0;
int BytesIndex = 0;
while（！file.eof（））{
file.read（buffer，1024）;
int BytesLeft = strlen（buffer）;
>>>ifstream file;
file.open(r.c_str(), ios::binary);
char buffer[1024] = "";
int BytesSent = 0;
int BytesIndex = 0;
while( !file.eof() ) {
file.read(buffer, 1024);
int BytesLeft = strlen(buffer);
这里。
Here.
我错过了什么吗？你告诉我什么？
Am I missing something? What are you telling me?
查看strlen特别注意它所期望的
参数。
-
Ian Collins。
Look up strlen paying particular attention to what it expects as its
parameter.
--
Ian Collins.
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