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-rw-r--r--cpukit/libcsupport/src/truncate.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/truncate.c b/cpukit/libcsupport/src/truncate.c
new file mode 100644
index 0000000000..7a0a98b4bd
--- /dev/null
+++ b/cpukit/libcsupport/src/truncate.c
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+/*
+ * truncate() - Truncate a File to the Specified Length
+ *
+ * This routine is not defined in the POSIX 1003.1b standard but is
+ * commonly supported on most UNIX and POSIX systems. It is provided
+ * for compatibility.
+ *
+ * COPYRIGHT (c) 1989-1999.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ *
+ * $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+
+int truncate(
+ const char *path,
+ off_t length
+)
+{
+ int status;
+ int fd;
+
+ fd = open( path, O_WRONLY );
+ if ( fd == -1 )
+ return -1;
+
+ status = ftruncate( fd, length );
+
+ (void) close( fd );
+
+ return status;
+}