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/*
* barrier -- mouse and keyboard sharing utility
* Copyright (C) 2012-2016 Symless Ltd.
* Copyright (C) 2002 Chris Schoeneman
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file LICENSE that should have accompanied this file.
*
* This package 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/>.
*/
#include "arch/IArchString.h"
#if HAVE_VSNPRINTF
#if !defined(ARCH_VSNPRINTF)
# define ARCH_VSNPRINTF vsnprintf
#endif
int
IArchString::vsnprintf(char* str, int size, const char* fmt, va_list ap)
{
int n = ::ARCH_VSNPRINTF(str, size, fmt, ap);
if (n > size) {
n = -1;
}
return n;
}
#elif SYSAPI_UNIX // !HAVE_VSNPRINTF
#include <stdio.h>
int
IArchString::vsnprintf(char* str, int size, const char* fmt, va_list ap)
{
static FILE* bitbucket = fopen("/dev/null", "w");
if (bitbucket == NULL) {
// uh oh
if (size > 0) {
str[0] = '\0';
}
return 0;
}
else {
// count the characters using the bitbucket
int n = vfprintf(bitbucket, fmt, ap);
if (n + 1 <= size) {
// it'll fit so print it into str
vsprintf(str, fmt, ap);
}
return n;
}
}
#else // !HAVE_VSNPRINTF && !SYSAPI_UNIX
#error vsnprintf not implemented
#endif // !HAVE_VSNPRINTF
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