Hi ,
I have a problem with the read function. i have a loop wich reads a text file charcter by character and in some point i duplicate the file descriptor (dup function) and pass it to another function. The problem starts when the other function finishes it work. Since than my filedesriptor doesn't change when i read from a file and i am stuck on the same character.
Help !!!

: Hi ,
: I have a problem with the read function. i have a loop wich reads a text file charcter by character and in some point i duplicate the file descriptor (dup function) and pass it to another function. The problem starts when the other function finishes it work. Since than my filedesriptor doesn't change when i read from a file and i am stuck on the same character.
: Help !!!
:

Post some of your problematic code.


To understand recursive, first you need to understand recursive

the function is really long so i will give you the highlights:
this is the main loop:

do
{
if((ssBytesRead=read(fp,input,BUFFER_SIZE)))
{
...
fp=lseek(fp,-1*total_read,SEEK_CUR);
...
here i call the second function with the duplicate fp:
get_token_value(dup(fp));
}

}while(ssBytesRead!=0);

the get_token value function reads the text the same way the main loop does (using the read function) and at the end just before return it moves the fp one step back (using lseek).
After that the file pointer in the main loop won't move even as a result of read.