71 lines
1.2 KiB
C
71 lines
1.2 KiB
C
#include <stdio.h>
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int
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_flushbuf(c, iop)
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register FILE *iop;
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{
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if (fileno(iop) < 0) return EOF;
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if (! io_testflag(iop, IO_UNBUFF)) {
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if (iop->_buf == 0) {
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if (iop == stdout) {
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if (isatty(fileno(stdout))) {
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iop->_flags |= IO_UNBUFF;
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}
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else {
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extern unsigned char _sobuf[];
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iop->_buf = _sobuf;
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iop->_count = BUFSIZ-1;
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}
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}
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else {
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extern char *malloc();
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if (!(iop->_buf = (unsigned char *) malloc(BUFSIZ))) {
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iop->_flags |= IO_UNBUFF;
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}
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else {
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iop->_flags |= IO_MYBUF;
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iop->_count = BUFSIZ-1;
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}
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}
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iop->_ptr = iop->_buf;
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}
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}
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if (io_testflag(iop, IO_UNBUFF)) {
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char c1 = c;
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iop->_count = 0;
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if (write(fileno(iop), &c1, 1) != 1) {
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iop->_flags |= IO_ERR;
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return EOF;
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}
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return c;
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}
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else {
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int count = iop->_ptr - iop->_buf;
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iop->_count = BUFSIZ - 1;
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iop->_ptr = iop->_buf + 1;
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if (count > 0) {
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if (write(fileno(iop), iop->_buf, count) != count) {
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*(iop->_buf) = c;
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iop->_flags |= IO_ERR;
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return EOF;
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}
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}
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*(iop->_buf) = c;
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}
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return c;
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}
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_cleanup()
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{
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register int i;
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for ( i = 0 ; i < _NFILES ; i++ )
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if ( _io_table[i] != NULL )
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fclose(_io_table[i]);
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}
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