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/*
* lib/krb425/net_read.c
*
* Copyright 1990 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
* krb_net_read for krb425
*/
#include "krb425.h"
int
krb_net_read(fd,buf,len)
int fd;
char *buf;
int len;
{
extern int read();
int cc, len2 = 0;
#ifdef EBUG
char *obuf = buf;
#endif
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);
#ifdef EBUG
buf = obuf;
EPRINT "Read data: ``");
for (cc = 0; cc < len2 && cc < 24; ++cc) {
fprintf(stderr, "%c", (buf[cc] < ' ' || buf[cc] > '~') ? '.' : buf[cc]);
}
if (cc < len2) {
fprintf(stderr, "''(%d)\n", len2);
} else {
fprintf(stderr, "''\n");
}
#endif
return(len2);
}
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