mirror of https://github.com/ericonr/sndio.git
132 lines
3.0 KiB
C
132 lines
3.0 KiB
C
/* $OpenBSD: opt.c,v 1.10 2010/07/06 01:12:45 ratchov Exp $ */
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/*
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* Copyright (c) 2008 Alexandre Ratchov <alex@caoua.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "dev.h"
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#include "conf.h"
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#include "opt.h"
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#ifdef DEBUG
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#include "dbg.h"
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#endif
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struct optlist opt_list = SLIST_HEAD_INITIALIZER(&opt_list);
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void
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opt_new(char *name, struct dev *d, struct aparams *wpar, struct aparams *rpar,
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int maxweight, int mmc, int join, unsigned mode)
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{
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struct opt *o;
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unsigned len;
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char c;
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for (len = 0; name[len] != '\0'; len++) {
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if (len == OPT_NAMEMAX) {
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fprintf(stderr, "%s: name too long\n", name);
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exit(1);
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}
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c = name[len];
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if (c < 'a' && c > 'z' &&
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c < 'A' && c > 'Z' &&
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c < '0' && c > '9' &&
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c != '_') {
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fprintf(stderr, "%s: '%c' not allowed\n", name, c);
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exit(1);
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}
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}
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SLIST_FOREACH(o, &opt_list, entry) {
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if (strcmp(name, o->name) == 0) {
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fprintf(stderr, "%s: already defined\n", name);
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exit(1);
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}
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}
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o = malloc(sizeof(struct opt));
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if (o == NULL) {
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perror("opt_new: malloc");
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exit(1);
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}
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memcpy(o->name, name, len + 1);
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if (mode & MODE_RECMASK)
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o->wpar = (mode & MODE_MON) ? *rpar : *wpar;
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if (mode & MODE_PLAY)
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o->rpar = *rpar;
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o->maxweight = maxweight;
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o->mmc = mmc;
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o->join = join;
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o->mode = mode;
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o->dev = d;
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#ifdef DEBUG
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if (debug_level >= 2) {
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dbg_puts(o->name);
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dbg_puts("@");
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dbg_puts(o->dev->path);
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dbg_puts(":");
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if (mode & MODE_REC) {
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dbg_puts(" rec=");
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dbg_putu(o->wpar.cmin);
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dbg_puts(":");
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dbg_putu(o->wpar.cmax);
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}
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if (mode & MODE_PLAY) {
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dbg_puts(" play=");
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dbg_putu(o->rpar.cmin);
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dbg_puts(":");
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dbg_putu(o->rpar.cmax);
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dbg_puts(" vol=");
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dbg_putu(o->maxweight);
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}
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if (mode & MODE_MON) {
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dbg_puts(" mon=");
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dbg_putu(o->wpar.cmin);
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dbg_puts(":");
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dbg_putu(o->wpar.cmax);
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}
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if (o->mmc)
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dbg_puts(" mmc");
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dbg_puts("\n");
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}
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#endif
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SLIST_INSERT_HEAD(&opt_list, o, entry);
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}
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struct opt *
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opt_byname(char *name)
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{
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struct opt *o;
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SLIST_FOREACH(o, &opt_list, entry) {
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if (strcmp(name, o->name) == 0) {
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#ifdef DEBUG
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if (debug_level >= 3) {
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dbg_puts(o->name);
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dbg_puts(": option found\n");
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}
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#endif
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return o;
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}
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}
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#ifdef DEBUG
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if (debug_level >= 3) {
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dbg_puts(name);
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dbg_puts(": option not found\n");
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}
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#endif
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return NULL;
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}
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