diff options
Diffstat (limited to 'usr/src/lib/libc/port/gen/truncate.c')
| -rw-r--r-- | usr/src/lib/libc/port/gen/truncate.c | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/usr/src/lib/libc/port/gen/truncate.c b/usr/src/lib/libc/port/gen/truncate.c index 9fae764f31..eff577845f 100644 --- a/usr/src/lib/libc/port/gen/truncate.c +++ b/usr/src/lib/libc/port/gen/truncate.c @@ -2,9 +2,8 @@ * 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. + * Common Development and Distribution License (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. @@ -19,8 +18,9 @@ * * CDDL HEADER END */ + /* - * Copyright 2004 Sun Microsystems, Inc. All rights reserved. + * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -54,6 +54,7 @@ #include <unistd.h> #include <stdio.h> #include <fcntl.h> +#include <pthread.h> #include <sys/types.h> int @@ -76,17 +77,19 @@ int _truncate(const char *path, off_t len) { + int rval = 0; + int cancel_state; int fd; - if ((fd = open(path, O_WRONLY)) == -1) { - return (-1); - } - - if (ftruncate(fd, len) == -1) { + /* + * truncate() is not a cancellation point, + * even though it calls open() and close(). + */ + (void) pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cancel_state); + if ((fd = open(path, O_WRONLY)) == -1 || ftruncate(fd, len) == -1) + rval = -1; + if (fd >= 0) (void) close(fd); - return (-1); - } - - (void) close(fd); - return (0); + (void) pthread_setcancelstate(cancel_state, NULL); + return (rval); } |