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From: "arizvi" <ahmadwaris AT hotmail DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Problems with read
Date: 23 May 2005 11:31:48 -0700
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Hi,

I am opening a file and reading from it using the read function in
libc. I require 512 bytes, but the number of bytes returned from read
is apparently random. I know that I am not at the EOF. The return
values (no. of bytes read) I get are either 66 or 432 depending on the
file opened.

What can be the problem with the function? Should I try to keep reading
until I get 512 bytes?

The code outline is:

filedes = open(filename, O_RDONLY); //open file
seekres = lseek(file, offset, SEEK_SET); //seek to offset - 0
cnt = read(filedes,buf, 512); //read 512 bytes: returns < 512

Thanks,
Ahmad