recv


Python - converting sock.recv to string

我的梦境 提交于 2020-01-27 07:49:07
问题 I'm digging around with python and networking. while True: data = sock.recv(10240) This is definitely listening. But it seems to need to be converted to a text string. I've seen some people using struct.unpack() , but I'm not sure exactly how it works. What's the way to convert? 回答1: What you get back from recv is a bytes string: Receive data from the socket. The return value is a bytes object representing the data received. In Python 3.x, to convert a bytes string into a Unicode text str

Python - converting sock.recv to string

元气小坏坏 提交于 2020-01-27 07:47:16
问题 I'm digging around with python and networking. while True: data = sock.recv(10240) This is definitely listening. But it seems to need to be converted to a text string. I've seen some people using struct.unpack() , but I'm not sure exactly how it works. What's the way to convert? 回答1: What you get back from recv is a bytes string: Receive data from the socket. The return value is a bytes object representing the data received. In Python 3.x, to convert a bytes string into a Unicode text str

Python - converting sock.recv to string

我与影子孤独终老i 提交于 2020-01-27 07:43:51
问题 I'm digging around with python and networking. while True: data = sock.recv(10240) This is definitely listening. But it seems to need to be converted to a text string. I've seen some people using struct.unpack() , but I'm not sure exactly how it works. What's the way to convert? 回答1: What you get back from recv is a bytes string: Receive data from the socket. The return value is a bytes object representing the data received. In Python 3.x, to convert a bytes string into a Unicode text str

Why is there no flag like MSG_WAITALL for send?

萝らか妹 提交于 2020-01-14 18:49:58
问题 The flag MSG_WAITALL can be used for recv , which requests recv to block until the full request is satisfied. That means recv will not return until as much data as requested (specified by the argument len ) has been received, unless an error occurs or the connection has been closed. Why doesn't such a flag apply to send too? I think it would be very useful for sending ( send doesn't return until ALL the bytes the caller wants to send has been handed to TCP send buffer) 回答1: It would be

Why is there no flag like MSG_WAITALL for send?

女生的网名这么多〃 提交于 2020-01-14 18:48:09
问题 The flag MSG_WAITALL can be used for recv , which requests recv to block until the full request is satisfied. That means recv will not return until as much data as requested (specified by the argument len ) has been received, unless an error occurs or the connection has been closed. Why doesn't such a flag apply to send too? I think it would be very useful for sending ( send doesn't return until ALL the bytes the caller wants to send has been handed to TCP send buffer) 回答1: It would be

RECV buffer empty, but returns a value > 1

感情迁移 提交于 2020-01-06 14:10:44
问题 I am attempting to make a simple server so that two clients can communicate with each other. The main server code accepts the two client connections and then forks off a process that uses execl to generate a personal server between the two clients so that the main server can continue looking for new connections. Everything seems to work correctly until the personal server attempts to contact the clients and they both receive gibberish, if anyone knows what could cause this please let me know.

RECV buffer empty, but returns a value > 1

微笑、不失礼 提交于 2020-01-06 14:08:28
问题 I am attempting to make a simple server so that two clients can communicate with each other. The main server code accepts the two client connections and then forks off a process that uses execl to generate a personal server between the two clients so that the main server can continue looking for new connections. Everything seems to work correctly until the personal server attempts to contact the clients and they both receive gibberish, if anyone knows what could cause this please let me know.

How does the python socket.recv() method know that the end of the message has been reached?

巧了我就是萌 提交于 2020-01-01 10:03:14
问题 Let's say I'm using 1024 as buffer size for my client socket: recv(1024) Let's assume the message the server wants to send to me consists of 2024 bytes. Only 1024 bytes can be received by my socket. What's happening to the other 1000 bytes? Will the recv-method wait for a certain amount of time (say 2 seconds) for more data to come and stop working after this time span? (I.e., if the rest of the data arrives after 3 seconds, the data will not be received by the socket any more?) or Will the

Recv gives Bad file descriptor only sometimes (run the program it works fine, sometimes it does not work)

妖精的绣舞 提交于 2019-12-25 03:36:20
问题 Scenario: I have a client (subscriber) with code that compiles and works, I have the server for said client, I can run it on different bash windows, I have printf's to show what message I'm sending, what does the server get, to see if the client receives the confirmation... Everything. There might be problems in some places of the code but more or less it works because I can send messages and so on (this is all on a local machine). I stop the program running, execute again, and two things can

Python Recv() stalling

我只是一个虾纸丫 提交于 2019-12-25 02:03:45
问题 I'm writing a very basic HTTP client: import socket from socket import * Payload = """GET /test.html HTTP/1.1 Accept: */* Accept-Language: en-us User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0) Accept-Encoding: gzip, deflate Proxy-Connection: Keep-Alive Host: example.com Pragma: no-cache """ def SendAndReceive(Host, Payload): s = socket(AF_INET, SOCK_STREAM) s.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1) s.connect(Host) s.sendall(Payload) tdata=[] while True: data = s

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