diff options
Diffstat (limited to 'eBones/krb/netread.c')
-rw-r--r-- | eBones/krb/netread.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/eBones/krb/netread.c b/eBones/krb/netread.c new file mode 100644 index 0000000..eb86327 --- /dev/null +++ b/eBones/krb/netread.c @@ -0,0 +1,46 @@ +/* + * 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 1.2 1994/07/19 19:26:03 g89r4222 Exp $ + */ + +#ifndef lint +static char rcsid[] = +"$Id: netread.c,v 1.2 1994/07/19 19:26:03 g89r4222 Exp $"; +#endif lint + +/* + * 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); +} |