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/*
Gordon's Text-Utilities Library
Copyright (C) 2009-2013 Assaf Gordon (assafgordon@gmail.com)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>
*/
#include <unistd.h>
#include <err.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <err.h>
#include <gtextutils/pipe_fitter.h>
#include "tests_assertion.h"
const char* text = "Hello World\n";
int main()
{
int fd;
int pid;
char temp[1000];
char str[1000];
int n ;
int i ;
//Pipe output through a GZIP program
fd = pipe_output_command ( "gzip", "pipe_out.txt.gz", &pid ) ;
i = write ( fd, text, strlen(text)) ;
if ( i == -1 )
err(1,"write failed");
pipe_close(fd, pid);
//Read input through a GUNZIP program
fd = pipe_input_command ( "gunzip", "pipe_out.txt.gz", &pid );
//Read entire input from the pipe.
//Note:
// 'read' doesn't have to return the entire input in one read - so
// we loop until the end of the file and concatnate the input.
strcat(str,"");
while (1) {
n = read ( fd, temp, sizeof(temp)-1) ;
if (n==-1)
err(1,"Read from GZIP input pipe failed");
if (n==0)
break; //End-Of-File
//Ensure proper NULL termination
temp[n] = 0 ;
strncpy ( str, temp, sizeof(str)-1);
}
pipe_close(fd,pid);
//Validate the input
ASSERT ( strcmp(str, text)==0 ) ;
return 0 ;
}
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