Finish up chroot(1) and md5sum(1)

README

@@ -15,7 +15,7 @@ The following tools are implemented ('*' == finished, '#' == UTF-8 support,
 =  chgrp           no                              -h, -H, -L, -P
 =* chmod           yes                             none
 =  chown           no                              -h, -H, -L, -P
-=  chroot          non-posix                       none
+=* chroot          non-posix                       none
 =* cksum           yes                             none
    cmp             yes                             none
    cols            non-posix                       none
@@ -41,7 +41,7 @@ The following tools are implemented ('*' == finished, '#' == UTF-8 support,
 =* logger          yes                             none
 =* logname         yes                             none
 =  ls              no                              -C, -R, -q, -u
-   md5sum          non-posix                       none
+=* md5sum          non-posix                       none
 =* mkdir           yes                             none
 =* mkfifo          yes                             none
 =  mktemp          non-posix                       none

chroot.1

@@ -1,24 +1,24 @@
-.Dd January 30, 2015
+.Dd January 31, 2015
 .Dt CHROOT 1
 .Os sbase
 .Sh NAME
 .Nm chroot
-.Nd invoke a command with a different root directory
+.Nd run a command or shell with a different root directory
 .Sh SYNOPSIS
 .Nm
 .Ar dir
-.Op Ar command Op Ar arg ...
+.Op Ar cmd Op Ar arg ...
 .Sh DESCRIPTION
 .Nm
 runs
-.Ar command
+.Ar cmd
 after changing the root directory to
 .Ar dir
 with the
 .Xr chroot 2
-system call, and changing the working directory to the new root.
+system call and after changing the working directory to the new root.
 If
-.Op Ar command
+.Ar cmd
 is not specified, an interactive shell is started in the new root.
 .Sh SEE ALSO
 .Xr chdir 2 ,

chroot.c

@@ -8,7 +8,7 @@
 static void
 usage(void)
 {
-	eprintf("usage: chroot dir [command [arg...]]\n");
+	eprintf("usage: chroot dir [cmd [arg ...]]\n");
 }
 
 int

md5sum.1

@@ -1,17 +1,27 @@
-.Dd January 30, 2015
+.Dd January 31, 2015
 .Dt MD5SUM 1
 .Os sbase
 .Sh NAME
 .Nm md5sum
-.Nd compute MD5 message digest
+.Nd compute or check MD5 checksums
 .Sh SYNOPSIS
 .Nm
 .Op Fl c
 .Op Ar file ...
 .Sh DESCRIPTION
-Print MD5 (128-bit) checksums. With no file, read standard input.
+.Nm
+writes an MD5 (128-bit) checksum of each
+.Ar file
+to stdout.
+If no
+.Ar file
+is given
+.Nm
+reads from stdin.
 .Sh OPTIONS
 .Bl -tag -width Ds
 .It Fl c
-read list of MD5 checksums from file and check them
+Read list of MD5 checksums from each
+.Ar file
+and check them.
 .El

md5sum.c

@@ -18,7 +18,7 @@ struct crypt_ops md5_ops = {
 static void
 usage(void)
 {
-	eprintf("usage: %s [-c] [file...]\n", argv0);
+	eprintf("usage: %s [-c] [file ...]\n", argv0);
 }
 
 int