1 /* grabbag - Convenience lib for various routines common to several tools
2 * Copyright (C) 2013-2016 Xiph.org Foundation
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * - Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * - Neither the name of the Xiph.org Foundation nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 #include "share/compat.h"
42 * FLAC needs to compile and work correctly on systems with a normal ISO C99
43 * snprintf as well as Microsoft Visual Studio which has an non-standards
44 * conformant snprint_s function.
46 * The important difference occurs when the resultant string (plus string
47 * terminator) would have been longer than the supplied size parameter. When
48 * this happens, ISO C's snprintf returns the length of resultant string, but
49 * does not over-write the end of the buffer. MS's snprintf_s in this case
52 * The _MSC_VER code below attempts to modify the return code for vsnprintf_s
53 * to something that is more compatible with the behaviour of the ISO C version.
57 flac_snprintf(char *str, size_t size, const char *fmt, ...)
70 rc = vsnprintf_s (str, size, _TRUNCATE, fmt, va);
73 #elif defined __MINGW32__
74 rc = __mingw_vsnprintf (str, size, fmt, va);
76 rc = vsnprintf (str, size, fmt, va);
84 flac_vsnprintf(char *str, size_t size, const char *fmt, va_list va)
91 rc = vsnprintf_s (str, size, _TRUNCATE, fmt, va);
94 #elif defined __MINGW32__
95 rc = __mingw_vsnprintf (str, size, fmt, va);
97 rc = vsnprintf (str, size, fmt, va);