svn commit: r190929 - head/sbin/newfs_msdos
Ed Schouten
ed at FreeBSD.org
Sat Apr 11 14:33:11 UTC 2009
Author: ed
Date: Sat Apr 11 14:33:10 2009
New Revision: 190929
URL: http://svn.freebsd.org/changeset/base/190929
Log:
Use ftruncate() instead of lseek()+write()+lseek() to set the created
file (-C) to the requested size.
Submitted by: Christoph Mallon <christoph mallon gmx de>
Modified:
head/sbin/newfs_msdos/newfs_msdos.c
Modified: head/sbin/newfs_msdos/newfs_msdos.c
==============================================================================
--- head/sbin/newfs_msdos/newfs_msdos.c Sat Apr 11 14:25:47 2009 (r190928)
+++ head/sbin/newfs_msdos/newfs_msdos.c Sat Apr 11 14:33:10 2009 (r190929)
@@ -356,17 +356,13 @@ main(int argc, char *argv[])
}
dtype = *argv;
if (opt_create) {
- off_t pos;
-
if (opt_N)
errx(1, "create (-C) is incompatible with -N");
fd = open(fname, O_RDWR | O_CREAT | O_TRUNC, 0644);
if (fd == -1)
errx(1, "failed to create %s", fname);
- pos = lseek(fd, opt_create - 1, SEEK_SET);
- if (write(fd, "\0", 1) != 1)
+ if (ftruncate(fd, opt_create))
errx(1, "failed to initialize %jd bytes", (intmax_t)opt_create);
- pos = lseek(fd, 0, SEEK_SET);
} else if ((fd = open(fname, opt_N ? O_RDONLY : O_RDWR)) == -1 ||
fstat(fd, &sb))
err(1, "%s", fname);
More information about the svn-src-all
mailing list