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/* copied from rsync */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <stdarg.h>
static int foo(const char *format, ...)
{
va_list ap;
size_t len;
char buf[5];
va_start(ap, format);
len = vsnprintf(0, 0, format, ap);
va_end(ap);
if (len != 5) return(1);
if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) return(1);
return(0);
}
int main(void) { return foo("hello"); }
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