/*
* Cleanup any remaining I/O and flush output. If necesssary, output file
* is truncated.
*/
static void
dd_close(void)
{
if (cfunc == def)
def_close();
else if (cfunc == block)
block_close();
else if (cfunc == unblock)
unblock_close();
if (ddflags & C_OSYNC && out.dbcnt < out.dbsz) {
(void)memset(out.dbp, 0, out.dbsz - out.dbcnt);
out.dbcnt = out.dbsz;
}
/* If there are pending sparse blocks, make sure
* to write out the final block un-sparse
*/
if ((out.dbcnt == 0) && pending) {
memset(out.db, 0, out.dbsz);
out.dbcnt = out.dbsz;
out.dbp = out.db + out.dbcnt;
pending -= out.dbsz;
}
if (out.dbcnt)
dd_out(1);
/*
* Reporting nfs write error may be defered until next
* write(2) or close(2) system call. So, we need to do an
* extra check. If an output is stdout, the file structure
* may be shared among with other processes and close(2) just
* decreases the reference count.
*/
if (out.fd == STDOUT_FILENO && fsync(out.fd) == -1 && errno != EINVAL) {
fprintf(stderr, "fsync stdout: %s\n", strerror(errno));
exit(1);
/* NOTREACHED */
}
if (close(out.fd) == -1) {
fprintf(stderr, "close: %s\n", strerror(errno));
exit(1);
/* NOTREACHED */
}
}
/*
* Cleanup any remaining I/O and flush output. If necessary, output file
* is truncated.
*/
static void
dd_close(void)
{
if (cfunc == def)
def_close();
else if (cfunc == block)
block_close();
else if (cfunc == unblock)
unblock_close();
if (ddflags & C_OSYNC && out.dbcnt && out.dbcnt < out.dbsz) {
if (ddflags & (C_BLOCK|C_UNBLOCK))
memset(out.dbp, ' ', out.dbsz - out.dbcnt);
else
memset(out.dbp, 0, out.dbsz - out.dbcnt);
out.dbcnt = out.dbsz;
}
if (out.dbcnt)
dd_out(1);
}
