freebsd-dev/eBones/lib/libkrb/netread.c
Mark Murray d79d4a7ced Major cleanup of eBones code:
- Get all functions prototyped or at least defined before use.
- Make code compile (Mostly) clean with -Wall set
- Start to reduce the degree to which DES aka libdes is built in.
- get all functions to the same uniform standard of definition:
int
foo(a, b)
int a;
int *b;
{
   :
}
- fix numerous bugs exposed by above processes.

Note - this replaces the previous work which used an unpopular function
 definition style.
1995-09-07 21:39:00 +00:00

51 lines
1.1 KiB
C

/*
* Copyright 1987, 1988 by the Massachusetts Institute of Technology.
* For copying and distribution information, please see the file
* <Copyright.MIT>.
*
* from: netread.c,v 4.1 88/11/15 16:47:21 jtkohl Exp $
* $Id: netread.c,v 1.3 1995/07/18 16:39:20 mark Exp $
*/
#if 0
#ifndef lint
static char rcsid[] =
"$Id: netread.c,v 1.3 1995/07/18 16:39:20 mark Exp $";
#endif lint
#endif
#include <unistd.h>
/*
* krb_net_read() reads from the file descriptor "fd" to the buffer
* "buf", until either 1) "len" bytes have been read or 2) cannot
* read anymore from "fd". It returns the number of bytes read
* or a read() error. (The calling interface is identical to
* read(2).)
*
* XXX must not use non-blocking I/O
*/
int
krb_net_read(fd, buf, len)
int fd;
register char *buf;
register int len;
{
int cc, len2 = 0;
do {
cc = read(fd, buf, len);
if (cc < 0)
return(cc); /* errno is already set */
else if (cc == 0) {
return(len2);
} else {
buf += cc;
len2 += cc;
len -= cc;
}
} while (len > 0);
return(len2);
}