Thread: Reading Strings from Buffer

I'm writing a program that reads strings from a character buffer, and then prints a confirmation. The buffer I have initialized has a size of 50, but the number of strings inside the buffer isn't necessarily going to be 50. I am stuck on stopping the read once every string has been processed.

Code:

if((pid2=fork())==0){
		int i, bytes; close(bc[1]);
		for(i=0;i<sizeof(msg);i++){
			if(strstr(msg, " ")!=NULL)
				break;
			else{
				bytes = read(bc[0], msg, 3); 
				printf("C received %s from B\n", msg);
				sleep(1);
			} 
		} 
		close(bc[0]); exit(1);

I've tried looking for a white space, then breaking, but that hasn't worked. Any suggestions?

can you give a better description of what your input file looks like? exactly? and what the output should look like?
I see you are reading 3 bytes at a time from bc[0]. does that mean each part of your message is 3 characters long? are you sure the file has blanks in it after your strings?

You need to check the return value of read to make sure you actually got data (i.e. it didn't get EOF or error). Then, if you want to use strstr, you need to null terminate msg, or you need to do as oogabooga suggested in your other thread, and use memchr.