2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2005 Poul-Henning Kamp
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <namespace.h>
43 __printf_arginfo_quote(const struct printf_info *pi __unused, size_t n, int *argt)
52 __printf_render_quote(struct __printf_io *io, const struct printf_info *pi __unused, const void *const *arg)
54 const char *str, *p, *t, *o;
58 str = *((const char *const *)arg[0]);
60 return (__printf_out(io, pi, "\"(null)\"", 8));
62 return (__printf_out(io, pi, "\"\"", 2));
64 for (i = 0, p = str; *p; p++)
65 if (isspace(*p) || *p == '\\' || *p == '"')
68 return (__printf_out(io, pi, str, strlen(str)));
70 ret = __printf_out(io, pi, "\"", 1);
71 for (t = p = str; *p; p++) {
85 else if (isspace(*p)) {
86 sprintf(r, "\\%03o", *p);
91 ret += __printf_out(io, pi, t, p - t);
92 ret += __printf_out(io, pi, o, strlen(o));
96 ret += __printf_out(io, pi, t, p - t);
97 ret += __printf_out(io, pi, "\"", 1);