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Changes from OpenBSD:

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* Better usage() - correct syntax, display available commands
	  instead of examples
	* Accept command abbreviations
	* sprintf -> snprintf (for paranoia)
	* manpage capitalisation tweak

Obtained from:	OpenBSD
This commit is contained in:
Kris Kennaway 1999-06-07 13:53:57 +00:00
parent b5d512fa68
commit 305a253acf
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=47816
3 changed files with 28 additions and 17 deletions
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4
bin/chio/Makefile
View File

@ -1,7 +1,7 @@
# $Id: Makefile,v 1.2 1997/09/12 15:00:06 jkh Exp $
# $Id: Makefile,v 1.3 1998/09/15 07:48:51 gibbs Exp $
# @(#)Makefile 8.1 (Berkeley) 6/6/93
CFLAGS+=-I${.CURDIR}/../../sys
CFLAGS+=-I${.CURDIR}/../../sys -W -Wall
PROG= chio
SRCS= chio.c

4
bin/chio/chio.1
View File

@ -30,7 +30,7 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" $Id: chio.1,v 1.7 1998/09/15 07:48:51 gibbs Exp $
.\" $Id: chio.1,v 1.8 1998/11/30 23:05:38 billf Exp $
.\"
.Dd May 14, 1998
.Dt CHIO 1
@ -135,7 +135,7 @@ respectively.
.Pp
Note that not all medium changers support the
.Ic exchange
operation; The changer must have multiple free pickers or emulate
operation; the changer must have multiple free pickers or emulate
multiple free pickers with transient storage.
.It Xo Nm position
.Ar <to ET> <to EU>

37
bin/chio/chio.c
View File

@ -77,23 +77,23 @@ static int do_voltag(char *, int, char **);
/* Valid changer element types. */
const struct element_type elements[] = {
{ "picker", CHET_MT },
{ "slot", CHET_ST },
{ "portal", CHET_IE },
{ "drive", CHET_DT },
{ "picker", CHET_MT },
{ "portal", CHET_IE },
{ "slot", CHET_ST },
{ NULL, 0 },
};
/* Valid commands. */
const struct changer_command commands[] = {
{ "move", do_move },
{ "exchange", do_exchange },
{ "position", do_position },
{ "params", do_params },
{ "getpicker", do_getpicker },
{ "ielem", do_ielem },
{ "move", do_move },
{ "params", do_params },
{ "position", do_position },
{ "setpicker", do_setpicker },
{ "status", do_status },
{ "ielem", do_ielem },
{ "voltag", do_voltag },
{ NULL, 0 },
};
@ -147,6 +147,14 @@ main(int argc, char *argv[])
for (i = 0; commands[i].cc_name != NULL; ++i)
if (strcmp(*argv, commands[i].cc_name) == 0)
break;
if (commands[i].cc_name == NULL) {
/* look for abbreviation */
for (i = 0; commands[i].cc_name != NULL; ++i)
if (strncmp(*argv, commands[i].cc_name,
strlen(*argv)) == 0)
break;
}
if (commands[i].cc_name == NULL)
errx(1, "unknown command: %s", *argv);
@ -881,7 +889,9 @@ bits_to_string(int v, const char *cp)
np++;
if ((v & (1 << (f - 1))) == 0)
continue;
bp += sprintf(bp, "%c%.*s", sep, (int)(long)(np - cp), cp);
(void) snprintf(bp, sizeof(buf) - (bp - &buf[0]),
"%c%.*s", sep, (int)(long)(np - cp), cp);
bp += strlen(bp);
sep = ',';
}
if (sep != '<')
@ -900,11 +910,12 @@ cleanup()
static void
usage()
{
int i;
(void) fprintf(stderr, "usage: %s command arg1 arg2 ...\n", __progname);
(void) fprintf(stderr, "Examples:\n");
(void) fprintf(stderr, "\tchio -f /dev/ch0 move slot 1 drive 0\n");
(void) fprintf(stderr, "\tchio ielem\n");
(void) fprintf(stderr, "\tchio -f /dev/ch1 status\n");
(void) fprintf(stderr, "usage: %s [-f device] command [-<flags>] [args ...]\n", __progname);
(void) fprintf(stderr, "commands:");
for (i = 0; commands[i].cc_name; i++)
(void) fprintf(stderr, " %s", commands[i].cc_name);
(void) fprintf(stderr, "\n");
exit(1);
}