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Make mt(1) orthogonal: now that we print the densities as strings

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instead of hex, make it accept density names for input, too.
This commit is contained in:
Joerg Wunsch 1995-04-18 22:27:43 +00:00
parent c0a7a54b73
commit 77023b92da
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=7929
2 changed files with 78 additions and 40 deletions
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14
usr.bin/mt/mt.1
View File

@ -96,6 +96,14 @@ Set the block size for the tape unit. Zero means variable-length
blocks.
.It Cm density
Set the density for the tape unit. For the density codes, see below.
The density value could be given either numerically, or as a string,
corresponding to the
.Dq Reference
field. If the string is abbreviated, it will be resolved in the order
shown in the table, and the first matching entry will be used. If the
given string and the resulting canonical density name do not match
exactly, an informational message is printed about what the given
string has been taken for.
.It Cm eom
Forward space to end of recorded medium
(Count is ignored).
@ -202,10 +210,12 @@ The
.Nm mt
command appeared in
.Bx 4.3 .
.Pp
Extensions regarding the
.Xr st 4
driver appeared in 386BSD 0.1, and have been merged into the
driver appeared in 386BSD 0.1 as a separate
.Xr st 1
command, and have been merged into the
.Nm
command in FreeBSD 2.1.
.\" mt.1: mtio(4) missing

104
usr.bin/mt/mt.c
View File

@ -59,7 +59,8 @@ static char sccsid[] = "@(#)mt.c 8.1 (Berkeley) 6/6/93";
#if defined(__FreeBSD__)
/* c_flags */
#define NEED_2ARGS 0x01
#define ZERO_ALLOWED 0X02
#define ZERO_ALLOWED 0x02
#define IS_DENSITY 0x04
#endif /* defined(__FreeBSD__) */
struct commands {
@ -83,7 +84,7 @@ struct commands {
#if defined(__FreeBSD__)
{ "erase", MTERASE, 0 },
{ "blocksize", MTSETBSIZ, 0, NEED_2ARGS|ZERO_ALLOWED },
{ "density", MTSETDNSTY, 0, NEED_2ARGS|ZERO_ALLOWED },
{ "density", MTSETDNSTY, 0, NEED_2ARGS|ZERO_ALLOWED|IS_DENSITY },
{ "eom", MTEOD, 1 },
{ "comp", MTCOMP, 0, NEED_2ARGS|ZERO_ALLOWED },
#endif /* defined(__FreeBSD__) */
@ -96,6 +97,8 @@ void status __P((struct mtget *));
void usage __P((void));
#if defined (__FreeBSD__)
void st_status (struct mtget *);
int stringtodens (const char *s);
const char *denstostring (int d);
#endif /* defined (__FreeBSD__) */
int
@ -145,8 +148,21 @@ main(argc, argv)
mt_com.mt_op = comp->c_code;
if (*argv) {
#if defined (__FreeBSD__)
/* allow for hex numbers; useful for density */
mt_com.mt_count = strtol(*argv, &p, 0);
if (!isdigit(**argv) &&
comp->c_flags & IS_DENSITY) {
const char *dcanon;
mt_com.mt_count = stringtodens(*argv);
if (mt_com.mt_count == 0)
err("%s: unknown density", *argv);
dcanon = denstostring(mt_com.mt_count);
if (strcmp(dcanon, *argv) != 0)
printf(
"Using \"%s\" as an alias for %s\n",
*argv, dcanon);
p = "";
} else
/* allow for hex numbers; useful for density */
mt_com.mt_count = strtol(*argv, &p, 0);
#else
mt_com.mt_count = strtol(*argv, &p, 10);
#endif /* defined(__FreeBSD__) */
@ -335,32 +351,32 @@ struct densities {
int dens;
const char *name;
} dens [] = {
{ 0x1, "X3.22-1983 " },
{ 0x2, "X3.39-1986 " },
{ 0x3, "X3.54-1986 " },
{ 0x5, "X3.136-1986 " },
{ 0x6, "X3.157-1987 " },
{ 0x7, "X3.116-1986 " },
{ 0x8, "X3.158-1986 " },
{ 0x9, "X3B5/87-099 " },
{ 0xA, "X3B5/86-199 " },
{ 0xB, "X3.56-1986 " },
{ 0xC, "HI-TC1 " },
{ 0xD, "HI-TC2 " },
{ 0xF, "QIC-120 " },
{ 0x10, "QIC-150 " },
{ 0x11, "QIC-320 " },
{ 0x12, "QIC-1350 " },
{ 0x1, "X3.22-1983" },
{ 0x2, "X3.39-1986" },
{ 0x3, "X3.54-1986" },
{ 0x5, "X3.136-1986" },
{ 0x6, "X3.157-1987" },
{ 0x7, "X3.116-1986" },
{ 0x8, "X3.158-1986" },
{ 0x9, "X3B5/87-099" },
{ 0xA, "X3B5/86-199" },
{ 0xB, "X3.56-1986" },
{ 0xC, "HI-TC1" },
{ 0xD, "HI-TC2" },
{ 0xF, "QIC-120" },
{ 0x10, "QIC-150" },
{ 0x11, "QIC-320" },
{ 0x12, "QIC-1350" },
{ 0x13, "X3B5/88-185A" },
{ 0x14, "X3.202-1991 " },
{ 0x15, "ECMA TC17 " },
{ 0x16, "X3.193-1990 " },
{ 0x17, "X3B5/91-174 " },
{ 0x14, "X3.202-1991" },
{ 0x15, "ECMA TC17" },
{ 0x16, "X3.193-1990" },
{ 0x17, "X3B5/91-174" },
{ 0, 0 }
};
const char *
getdens(int d)
denstostring(int d)
{
static char buf[20];
struct densities *sd;
@ -369,13 +385,25 @@ getdens(int d)
if (sd->dens == d)
break;
if (sd->dens == 0) {
sprintf(buf, "0x%02x ", d);
sprintf(buf, "0x%02x", d);
return buf;
}
else
} else
return sd->name;
}
int
stringtodens(const char *s)
{
struct densities *sd;
size_t l = strlen(s);
for (sd = dens; sd->dens; sd++)
if (strncasecmp(sd->name, s, l) == 0)
break;
return sd->dens;
}
const char *
getblksiz(int bs)
{
@ -392,17 +420,17 @@ getblksiz(int bs)
void
st_status(struct mtget *bp)
{
printf("Present Mode: Density = %s Blocksize %s\n",
getdens(bp->mt_density), getblksiz(bp->mt_blksiz));
printf("Present Mode: Density = %-12s Blocksize %s\n",
denstostring(bp->mt_density), getblksiz(bp->mt_blksiz));
printf("---------available modes---------\n");
printf("Mode 0: Density = %s Blocksize %s\n",
getdens(bp->mt_density0), getblksiz(bp->mt_blksiz0));
printf("Mode 1: Density = %s Blocksize %s\n",
getdens(bp->mt_density1), getblksiz(bp->mt_blksiz1));
printf("Mode 2: Density = %s Blocksize %s\n",
getdens(bp->mt_density2), getblksiz(bp->mt_blksiz2));
printf("Mode 3: Density = %s Blocksize %s\n",
getdens(bp->mt_density3), getblksiz(bp->mt_blksiz3));
printf("Mode 0: Density = %-12s Blocksize %s\n",
denstostring(bp->mt_density0), getblksiz(bp->mt_blksiz0));
printf("Mode 1: Density = %-12s Blocksize %s\n",
denstostring(bp->mt_density1), getblksiz(bp->mt_blksiz1));
printf("Mode 2: Density = %-12s Blocksize %s\n",
denstostring(bp->mt_density2), getblksiz(bp->mt_blksiz2));
printf("Mode 3: Density = %-12s Blocksize %s\n",
denstostring(bp->mt_density3), getblksiz(bp->mt_blksiz3));
}
#endif /* defined (__FreeBSD__) */