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[gapil.git] / sources / FullRead.c

diff --git a/sources/FullRead.c b/sources/FullRead.c
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-/* FullRead.c
- * 
- * Copyright (C) 2001 Simone Piccardi
- * 
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-/****************************************************************
- *
- * Routine FullRead
- * Routine to read an exact number of bytes from a socket
- *
- * Author: Simone Piccardi
- * Jun. 2001
- *
- * $Id: FullRead.c,v 1.1 2003/02/02 20:35:33 piccardi Exp $ 
- *
- ****************************************************************/
-#include <unistd.h>
-#include <errno.h>
-
-ssize_t FullRead(int fd, void *buf, size_t count) 
-{
-    size_t nleft;
-    ssize_t nread;
- 
-    nleft = count;
-    while (nleft > 0) {             /* repeat until no left */
-       if ( (nread = read(fd, buf, nleft)) < 0) {
-           if (errno == EINTR) {   /* if interrupted by system call */
-               continue;           /* repeat the loop */
-           } else {
-               return(nread);      /* otherwise exit */
-           }
-       } else if (nread == 0) {    /* EOF */
-           break;                  /* break loop here */ 
-       }
-       nleft -= nread;             /* set left to read */
-       buf +=nread;                /* set pointer */
-    }
-    return (count - nleft);
-}
-