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/* $OpenBSD: opt.c,v 1.14 2012/06/27 06:53:13 ratchov Exp $ */
/*
* Copyright (c) 2008 Alexandre Ratchov <alex@caoua.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "dev.h"
#include "conf.h"
#include "opt.h"
#ifdef DEBUG
#include "dbg.h"
#endif
struct opt *opt_list = NULL;
struct opt *
opt_new(char *name, struct dev *dev,
struct aparams *wpar, struct aparams *rpar,
int maxweight, int mmc, int join, unsigned int mode)
{
struct opt *o, **po;
unsigned int len;
char c;
for (len = 0; name[len] != '\0'; len++) {
if (len == OPT_NAMEMAX)
errx(1, "%s: name too long", name);
c = name[len];
if ((c < 'a' || c > 'z') &&
(c < 'A' || c > 'Z'))
errx(1, "%s: '%c' not allowed", name, c);
}
o = malloc(sizeof(struct opt));
if (o == NULL)
err(1, "opt_new: malloc");
if (mode & MODE_RECMASK)
o->wpar = (mode & MODE_MON) ? *rpar : *wpar;
if (mode & MODE_PLAY)
o->rpar = *rpar;
o->maxweight = maxweight;
o->mmc = mmc;
o->join = join;
o->mode = mode;
o->dev = dev;
memcpy(o->name, name, len + 1);
for (po = &opt_list; *po != NULL; po = &(*po)->next) {
if (o->dev->num == (*po)->dev->num &&
strcmp(o->name, (*po)->name) == 0)
errx(1, "%s: already defined", o->name);
}
o->next = NULL;
*po = o;
#ifdef DEBUG
if (debug_level >= 2) {
dev_dbg(o->dev);
dbg_puts(".");
dbg_puts(o->name);
dbg_puts(":");
if (o->mode & MODE_REC) {
dbg_puts(" rec=");
dbg_putu(o->wpar.cmin);
dbg_puts(":");
dbg_putu(o->wpar.cmax);
}
if (o->mode & MODE_PLAY) {
dbg_puts(" play=");
dbg_putu(o->rpar.cmin);
dbg_puts(":");
dbg_putu(o->rpar.cmax);
dbg_puts(" vol=");
dbg_putu(o->maxweight);
}
if (o->mode & MODE_MON) {
dbg_puts(" mon=");
dbg_putu(o->wpar.cmin);
dbg_puts(":");
dbg_putu(o->wpar.cmax);
}
if (o->mode & (MODE_RECMASK | MODE_PLAY)) {
if (o->mmc)
dbg_puts(" mmc");
if (o->join)
dbg_puts(" join");
}
if (o->mode & MODE_MIDIIN)
dbg_puts(" midi/in");
if (o->mode & MODE_MIDIOUT)
dbg_puts(" midi/out");
dbg_puts("\n");
}
#endif
return o;
}
struct opt *
opt_byname(char *name, unsigned int num)
{
struct opt *o;
for (o = opt_list; o != NULL; o = o->next) {
if (o->dev->num != num)
continue;
if (strcmp(name, o->name) == 0)
return o;
}
return NULL;
}
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