[Linux-Discussion] Re: question
- From: bobbya <bobbya@xxxxxxxxxxxx>
- To: linux-discussion@xxxxxxxxxxxxx
- Date: Sat, 09 Jun 2001 11:24:49 -0700
Hello,
The file is a byte code java class file, i.e., a complied java program, so
I can't use the code below, right?
And that is what I wanted to do. I'm trying to copy a java byte code file
from one directory to another in a
C program.
while(fgets(buffer, sizeof(buffer), filePtr) != 0) )
fprintf(writetofilePtr, "%s", buffer);
}
I figured out how to use read successfully to do it.
/** code below successfully copies the byte code file to the new file **/
n = read(sourcefd, readbuffer, numbytes);
while(n > 0) {
write(destinationfd, readbuffer, n);
n = read(sourcefd, readbuffer, numbytes);
}
/*********************************************************/
Now I want to use "strstr" to change a string inside the byte code when
I do the copy to the other directory.
Any hints on that? I'm working on it today, Saturday, June 9, between 11:30
am(current time) and tonight.
Thanks,
Robert
Paul wrote:
> Curt Binder wrote:
> >
> > while(n > 0)
> >
> This should be:
> while (n!=EOF)
>
> read() will return an EOF when you try to read past the end of the
> file. The only way to detect an EOF is to attempt reading past the end.
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