Sponsored Content
Full Discussion: Help with sockets in C
Top Forums Programming Help with sockets in C Post 302510096 by omega666 on Friday 1st of April 2011 02:00:15 PM
Old 04-01-2011
since my data can have >0 \n should i just change it to

Code:
int pos=0; 
bzero(buffer,MAXDATASIZE);  // Stop once we have an entire single line 
while((buffer[pos] != '\0') && (pos < MAXDATASIZE)) {        
     // Put new data 'pos' bytes ahead, so we don't overwrite the old        
     ssize_t b=read(socket_fd, buffer+pos, 1);         
     if(b > 0) pos+=b;         
     else break; // b<=0 means socket closed or socket error, so give up. 
}

?

actualy it makes sense, everytime the reading is incomplete, it only read uptil the first \n character...
 

10 More Discussions You Might Find Interesting

1. Programming

sockets...

Hi ! I had a verry simple question to ask... In unix when we create pipes.. the unnamed pipes that is... is there any way to access those pipes outside the code ? Another thing.. do sockets have an entry in the inode table ? TIA, Devyani. (1 Reply)
Discussion started by: devy8
1 Replies

2. Programming

Sockets!?!?!?!?!?!

I am looking for a way to have a program listen on a port (example: 8000) for communication I will be sending via that port to it(Linux Kernel machine). Once it recieves an appropiate command I need it to run a .bat file in linux. I know what I need to do but I am running into a few problems:... (8 Replies)
Discussion started by: bigB8210
8 Replies

3. Programming

sockets

Hai, How cani declare socket and collect the data in a string varialbe. Since i am new to this i am asking this. Can we connect multiple port. Thank you. (6 Replies)
Discussion started by: arunkumar_mca
6 Replies

4. UNIX for Dummies Questions & Answers

sockets

how do i mointor how many sockets are opened from a particular foriegn address? (2 Replies)
Discussion started by: kirpond
2 Replies

5. Solaris

Sockets in use

Is there a way to see what sockets are in use? The developers here are getting some defunct processes and they would like to get a socket list. This is on a Solaris 8 machine. Thanks! (1 Reply)
Discussion started by: kjbaumann
1 Replies

6. IP Networking

sockets and firewall

Is it possible to trace the packages and the statuses of client's and/or server's sockets by the UNIX network administrative tools? Two applications interact via sockets. There is no problem if they stay in the same network segment. If their hosts connected through the firewall then they aren't... (4 Replies)
Discussion started by: gogogo
4 Replies

7. Programming

need help with sockets

anyone and teach me how to save standard output to a file in a client/server socket. I know how to read them to the screen but i'm not quite sure how to save them to a file. my read to screen file code: memset(line, 0x0, LINE_ARRAY_SIZE); while (recv(connectSocket, line, MAX_MSG, 0) >... (1 Reply)
Discussion started by: crunchyuser
1 Replies

8. Programming

Sockets

Hi,i now moved into a different section where i need to use sockets. i am completely nill in sockets. can some body please provide me what are the requirements for a socket. to use sockets in c. thanks (1 Reply)
Discussion started by: MrUser
1 Replies

9. Red Hat

Sockets

hai guys, I'm doing a project in which one server communicates with several clients. How can i do it when i have different port numbers???:confused: (0 Replies)
Discussion started by: rajeshb6
0 Replies

10. Programming

Any example about sockets in C++?

Hi, i am student, think learning about c++, someone has a example the how establish a conection with sockets :b::b: (1 Reply)
Discussion started by: mmartinez
1 Replies
readkey(3alleg4)						  Allegro manual						  readkey(3alleg4)

NAME
readkey - Returns the next character from the keyboard buffer. Allegro game programming library. SYNOPSIS
#include <allegro.h> int readkey(); DESCRIPTION
Returns the next character from the keyboard buffer, in ASCII format. If the buffer is empty, it waits until a key is pressed. You can see if there are queued keypresses with keypressed(). The low byte of the return value contains the ASCII code of the key, and the high byte the scancode. The scancode remains the same whatever the state of the shift, ctrl and alt keys, while the ASCII code is affected by shift and ctrl in the normal way (shift changes case, ctrl+letter gives the position of that letter in the alphabet, eg. ctrl+A = 1, ctrl+B = 2, etc). Pressing alt+key returns only the scan- code, with a zero ASCII code in the low byte. For example: int val; ... val = readkey(); if ((val & 0xff) == 'd') /* by ASCII code */ allegro_message("You pressed 'd' "); if ((val >> 8) == KEY_SPACE) /* by scancode */ allegro_message("You pressed Space "); if ((val & 0xff) == 3) /* ctrl+letter */ allegro_message("You pressed Control+C "); if (val == (KEY_X << 8)) /* alt+letter */ allegro_message("You pressed Alt+X "); This function cannot return character values greater than 255. If you need to read Unicode input, use ureadkey() instead. SEE ALSO
install_keyboard(3alleg4), ureadkey(3alleg4), keypressed(3alleg4), clear_keybuf(3alleg4), simulate_keypress(3alleg4) Allegro version 4.4.2 readkey(3alleg4)
All times are GMT -4. The time now is 07:09 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy