}
}
+void fprintf_or_die(FILE *f, const char *fmt, ...)
+{
+ va_list ap;
+ int ret;
+
+ va_start(ap, fmt);
+ ret = vfprintf(f, fmt, ap);
+ va_end(ap);
+
+ if (ret < 0) {
+ check_pipe(errno);
+ die_errno("write error");
+ }
+}
+
void fsync_or_die(int fd, const char *msg)
{
if (fsync(fd) < 0) {