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mount_nullfs: rename a local variable

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The "source" variable was introduced in r26072, probably as the
traditional counterpart to "target".  But the "source"/"target" names
suggest the opposite of their actual meaning.  With ln, for example, the
source is the real file and the target is the newly created link.  In
mount_nullfs the meaning is the opposite: the target is the existing
file system and the source is the newly created mountpoint.  Better to
use "target"/"mountpoint" terminology, which matches the man page.

MFC after:	6 weeks
Sponsored by:	Axcient
This commit is contained in:
Alan Somers 2021-02-12 11:30:52 -07:00
parent a62dc346f6
commit f540cb27a2
1 changed files with 7 additions and 7 deletions
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14
sbin/mount_nullfs/mount_nullfs.c
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@ -66,7 +66,7 @@ main(int argc, char *argv[])
{
struct iovec *iov;
char *p, *val;
char source[MAXPATHLEN];
char mountpoint[MAXPATHLEN];
char target[MAXPATHLEN];
char errmsg[255];
int ch, iovlen;
@ -97,21 +97,21 @@ main(int argc, char *argv[])
if (argc != 2)
usage();
/* resolve target and source with realpath(3) */
/* resolve target and mountpoint with realpath(3) */
if (checkpath(argv[0], target) != 0)
err(EX_USAGE, "%s", target);
if (checkpath(argv[1], source) != 0)
err(EX_USAGE, "%s", source);
if (checkpath(argv[1], mountpoint) != 0)
err(EX_USAGE, "%s", mountpoint);
build_iovec(&iov, &iovlen, "fstype", nullfs, (size_t)-1);
build_iovec(&iov, &iovlen, "fspath", source, (size_t)-1);
build_iovec(&iov, &iovlen, "fspath", mountpoint, (size_t)-1);
build_iovec(&iov, &iovlen, "target", target, (size_t)-1);
build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg));
if (nmount(iov, iovlen, 0) < 0) {
if (errmsg[0] != 0)
err(1, "%s: %s", source, errmsg);
err(1, "%s: %s", mountpoint, errmsg);
else
err(1, "%s", source);
err(1, "%s", mountpoint);
}
exit(0);
}