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/* printquoted.c -- print a specified string with any necessary quoting.
Copyright (C) 1990-2021 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 <https://www.gnu.org/licenses/>.
*/
/* config.h must be included first. */
#include <config.h>
/* system headers. */
#include <stdio.h>
#include <stdlib.h>
/* gnulib headers. */
#include "xalloc.h"
/* find headers. */
#include "printquoted.h"
/*
* Print S according to the format FORMAT, but if the destination is a tty,
* convert any potentially-dangerous characters. The logic in this function
* was taken from ls.c in coreutils (at Sun Jun 5 20:42:51 2005 UTC).
*/
int
print_quoted (FILE *fp,
const struct quoting_options *qopts,
bool dest_is_tty,
const char *format,
const char *s)
{
int rv;
if (dest_is_tty)
{
char smallbuf[BUFSIZ];
size_t len = quotearg_buffer (smallbuf, sizeof smallbuf, s, -1, qopts);
char *buf;
if (len < sizeof smallbuf)
buf = smallbuf;
else
{
/* The original coreutils code uses alloca(), but I don't
* want to take on the anguish of introducing alloca() to
* 'find'.
* XXX: newsflash: we already have alloca().
*/
buf = xmalloc (len + 1);
quotearg_buffer (buf, len + 1, s, -1, qopts);
}
/* Replace any remaining funny characters with '?'. */
len = qmark_chars (buf, len);
buf[len] = 0;
rv = fprintf (fp, format, buf); /* Print the quoted version */
if (buf != smallbuf)
{
free (buf);
buf = NULL;
}
}
else
{
/* no need to quote things. */
rv = fprintf (fp, format, s);
}
return rv;
}
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