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Viewing changes to ftp_lite/src/stream.c

  • Committer: Bazaar Package Importer
  • Author(s): Michael Hanke
  • Date: 2011-05-07 09:05:00 UTC
  • Revision ID: james.westby@ubuntu.com-20110507090500-lqpmdtwndor6e7os
Tags: upstream-3.3.2
Import upstream version 3.3.2

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ftp_lite/src/stream.c
 
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/*
 
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Copyright (C) 2003-2004 Douglas Thain and the University of Wisconsin
 
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Copyright (C) 2005- The University of Notre Dame
 
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This software is distributed under the GNU General Public License.
 
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See the file COPYING for details.
 
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*/
 
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#include "ftp_lite.h"
 
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#include <stdio.h>
 
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#include <stdlib.h>
 
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#define BUFFER_SIZE 32768
 
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ftp_lite_size_t ftp_lite_stream_to_stream( FILE *input, FILE *output )
 
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{
 
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        char buffer[BUFFER_SIZE];
 
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        int actual_read=0, actual_write=0;
 
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        ftp_lite_size_t total=0;
 
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        while(1) {
 
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                actual_read = fread(buffer,1,BUFFER_SIZE,input);
 
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                if(actual_read<=0) break;
 
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                actual_write = fwrite(buffer,1,actual_read,output);
 
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                if(actual_write!=actual_read) break;
 
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                total+=actual_write;
 
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        }
 
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        if( ( (actual_read<0) || (actual_write<0) ) && total==0 ) {
 
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                return -1;
 
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        } else {
 
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                return total;
 
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        }
 
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}
 
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ftp_lite_size_t ftp_lite_stream_to_buffer( FILE *input, char **buffer )
 
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{
 
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        int buffer_size = 8192;
 
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        int actual;
 
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        ftp_lite_size_t total=0;
 
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        char *newbuffer;
 
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        *buffer = malloc(buffer_size);
 
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        if(!*buffer) return -1;
 
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        while(1) {
 
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                actual = fread(&(*buffer)[total],1,buffer_size-total,input);
 
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                if(actual<=0) break;
 
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                total += actual;
 
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                if( (buffer_size-total)<1 ) {
 
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                        buffer_size *= 2;
 
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                        newbuffer = realloc(*buffer,buffer_size);
 
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                        if(!newbuffer) {
 
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                                free(*buffer);
 
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                                return -1;
 
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                        }
 
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                        *buffer = newbuffer;
 
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                }
 
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        }
 
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        return total;
 
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}