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PONot receiving messages in TCP client/server program
primarykey
Id
11388049
data
AcceptedAnswerId
0
AnswerCount
2
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2012-07-09T01:09:02.137
FavoriteCount
2
LastActivityDate
2012-07-09T02:22:09.067
LastEditDate
2012-07-09T02:22:09.067
LastEditorUserId
168868
OwnerUserId
1510751
ParentId
0
PostTypeId
1
Score
0
ViewCount
1961
LastEditorDisplayName
text
Body
I am trying to implement a tcp client and tcp server. I am able to establish the connection but when I send a message from the client, the server doesn't receive it and yes I did look at the previous posts and there were alot of similar problems. I did follow them but I am still getting the same error. The error i am getting is from server side: <pre><code>recv: Socket operation on non-socket </code></pre> Here is my code. If you can please let me know what I am doing wrong, I would really appreciate it. I think there is a problem in my server implementation. Server: <pre><code>#include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <errno.h> #include <string.h> #include <netdb.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #define PORT 3490 #define BACKLOG 10 int main() { struct sockaddr_in server; struct sockaddr_in dest; int status,socket_fd, client_fd,num; socklen_t size; char buffer[10240]; memset(buffer,0,sizeof(buffer)); int yes = 1; if ((socket_fd = socket(AF_INET, SOCK_STREAM, 0))== -1) { fprintf(stderr, "Socket failure!!\n"); exit(1); } if (setsockopt(socket_fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(int)) == -1) { perror("setsockopt"); exit(1); } memset(&server, 0, sizeof(server)); memset(&dest,0,sizeof(dest)); server.sin_family = AF_INET; server.sin_port = htons(PORT); server.sin_addr.s_addr = INADDR_ANY; if ((bind(socket_fd, (struct sockaddr *)&server, sizeof(struct sockaddr )))== -1) { //sizeof(struct sockaddr) fprintf(stderr, "Binding Failure\n"); exit(1); } if ((listen(socket_fd, BACKLOG))== -1){ fprintf(stderr, "Listening Failure\n"); exit(1); } while(1) { size = sizeof(struct sockaddr_in); if ((client_fd = accept(socket_fd, (struct sockaddr *)&dest, &size)==-1)) { //fprintf(stderr,"Accept Failure\n"); perror("accept"); exit(1); } printf("Server got connection from client %s\n", inet_ntoa(dest.sin_addr)); //buffer = "Hello World!! I am networking!!\n"; if ((num = recv(client_fd, buffer, 10239,0))== -1) { //fprintf(stderr,"Error in receiving message!!\n"); perror("recv"); exit(1); } // num = recv(client_fd, buffer, sizeof(buffer),0); buffer[num] = '\0'; printf("Message received: %s\n", buffer); close(client_fd); return 0; //close(socket_fd); } } </code></pre> Client: <pre><code>#include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <errno.h> #include <string.h> #include <netdb.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #define PORT 3490 int main(int argc, char *argv[]) { struct sockaddr_in server_info; struct hostent *he; int socket_fd,num; char *buffer; if (argc != 2) { fprintf(stderr, "Usage: client hostname\n"); exit(1); } if ((he = gethostbyname(argv[1]))==NULL) { fprintf(stderr, "Cannot get host name\n"); exit(1); } if ((socket_fd = socket(AF_INET, SOCK_STREAM, 0))== -1) { fprintf(stderr, "Socket Failure!!\n"); exit(1); } memset(&server_info, 0, sizeof(server_info)); server_info.sin_family = AF_INET; server_info.sin_port = htons(PORT); server_info.sin_addr = *((struct in_addr *)he->h_addr); if (connect(socket_fd, (struct sockaddr *)&server_info, sizeof(struct sockaddr))<0) { //fprintf(stderr, "Connection Failure\n"); perror("connect"); exit(1); } buffer = "Hello World!! I am networking!!\n"; if ((send(socket_fd,buffer, sizeof(buffer),0))== -1) { fprintf(stderr, "Failure Sending Message\n"); close(socket_fd); exit(1); } else { printf("Message being sent: %s\n",buffer); } close(socket_fd); } </code></pre>
Tags
<c><client-server>
Title
Not receiving messages in TCP client/server program
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USCharles
UserOwnerUserId
1. USueg1990
plurals
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PostLinksRelatedPostIdPostId
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PostsParentIdCreationDate
1. PO
 singulars
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 PTAnswer
2. PO
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 PTAnswer
VotesPostIdCreationDate
1. VO
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 PONot receiving messages in TCP client/server program
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 PONot receiving messages in TCP client/server program
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 PONot receiving messages in TCP client/server program
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CommentsPostId
1. This table or related slice is empty.

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