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/*
* yes.c: Part of GNU CSSC.
*
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007,
* 2008, 2009, 2010, 2001, 2014, 2019 Free Software Foundation, Inc.
*
* 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 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* clone of yes(1) -- some systems (e.g. Solaris) lack yes(1).
*/
#include <config.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <signal.h>
unsigned long
total_len(int argc, char * argv[])
{
unsigned long l = 0u;
int i;
for (i=0; i<argc; ++i)
l += strlen(argv[i]);
return l;
}
void
concat(char *buf, int argc, char * argv[])
{
int i;
buf[0] = '\0';
for (i=0; i<argc; ++i)
strcat(buf, argv[i]);
}
int
main(int argc, char *argv[])
{
char *msg;
unsigned long l;
/* make sure SIGPIPE is not ignored */
signal(SIGPIPE, SIG_DFL);
argv++;
argc--;
if (argc > 0)
{
l = total_len(argc, argv);
msg = malloc(l + 1u);
if (NULL == msg)
{
fprintf(stderr, "Ran out of memory.\n");
return 1;
}
concat(msg, argc, argv);
for (;;)
if (puts(msg) == EOF) /* this adds a trailing newline */
break;
}
else
{
for (;;)
if (puts("yes") == EOF) /* this adds a trailing newline */
break;
}
/*NOTREACHED*/
return 0;
}
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