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/* See LICENSE file for copyright and license details. */
#include "libsimple.h"
int
libsimple_vputenvf(const char *fmt, va_list ap) /* TODO test */
{
va_list ap2;
int n;
char *s;
va_copy(ap2, ap);
n = vsnprintf(NULL, 0, fmt, ap2);
va_end(ap2);
if (n < 0)
return -1;
if ((size_t)n == SIZE_MAX) {
errno = ENOMEM;
return -1;
}
s = alloca((size_t)n + 1);
vsprintf(s, fmt, ap);
return putenv(s);
}
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