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Diffstat (limited to 'usr/src/lib/libbc/libc/stdio/common/fdopen.c')
-rw-r--r--usr/src/lib/libbc/libc/stdio/common/fdopen.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/usr/src/lib/libbc/libc/stdio/common/fdopen.c b/usr/src/lib/libbc/libc/stdio/common/fdopen.c
new file mode 100644
index 0000000000..a225c02b45
--- /dev/null
+++ b/usr/src/lib/libbc/libc/stdio/common/fdopen.c
@@ -0,0 +1,89 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License"). You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 1989 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/* Copyright (c) 1984 AT&T */
+/* All Rights Reserved */
+
+#pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 1.4 */
+
+/*LINTLIBRARY*/
+/*
+ * Unix routine to do an "fopen" on file descriptor
+ * The mode has to be repeated because you can't query its
+ * status
+ */
+
+#include <stdio.h>
+#include <sys/errno.h>
+
+extern int errno;
+extern long lseek();
+extern FILE *_findiop();
+
+FILE *
+fdopen(fd, mode)
+int fd;
+register char *mode;
+{
+ static int nofile = -1;
+ register FILE *iop;
+
+ if(nofile < 0)
+ nofile = getdtablesize();
+
+ if(fd < 0 || fd >= nofile) {
+ errno = EINVAL;
+ return(NULL);
+ }
+
+ if((iop = _findiop()) == NULL)
+ return(NULL);
+
+ iop->_cnt = 0;
+ iop->_file = fd;
+ iop->_base = iop->_ptr = NULL;
+ iop->_bufsiz = 0;
+ switch(*mode) {
+
+ case 'r':
+ iop->_flag = _IOREAD;
+ break;
+ case 'a':
+ (void) lseek(fd, 0L, 2);
+ /* No break */
+ case 'w':
+ iop->_flag = _IOWRT;
+ break;
+ default:
+ errno = EINVAL;
+ return(NULL);
+ }
+
+ if(mode[1] == '+')
+ iop->_flag = _IORW;
+
+ return(iop);
+}