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28 lines
805 B
C
28 lines
805 B
C
/*
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* Copyright (c) 1996 W. Richard Stevens. All rights reserved.
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* Permission to use or modify this software and its documentation only for
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* educational purposes and without fee is hereby granted, provided that
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* the above copyright notice appear in all copies. The author makes no
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* representations about the suitability of this software for any purpose.
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* It is provided "as is" without express or implied warranty.
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*/
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#include "cliserv.h"
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int
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read_stream(int fd, char *ptr, int maxbytes)
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{
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int nleft, nread;
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nleft = maxbytes;
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while (nleft > 0) {
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if ( (nread = read(fd, ptr, nleft)) < 0)
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return(nread); /* error, return < 0 */
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else if (nread == 0)
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break; /* EOF, return #bytes read */
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nleft -= nread;
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ptr += nread;
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}
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return(maxbytes - nleft); /* return >= 0 */
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}
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