Question

Through GDB I have determined that the segfault is occuring somewhere in this block of code.

readInfo(fd)

int fd;

 {
  char str[200];
  while(readInfo(fd,str))
   printf("%s\n",str);
 }

What this code is trying to accomplish is to read information sent to it by a server. I’m not quite sure what the problem is. Any tips would be greatly appreciated.

EDIT: To be more specific:

Program received signal SIGSEGV, Segmentation fault.
0x0804864b in readInfo ()

Answer 1

I have three tips:

1. Compile the program with debugging symbols. That way you can see the actual code that you are crashing on, as well as print variable values even after the crash.
2. Write two functions – the non-recursive version and the recursive version. This isn’t always necessary, but since you’re adding a parameter, it is for you.
3. Somewhere in there you’re going to actually have to write some code that reads from the file descriptor.