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#include <unistd.h>
#include <libdaemon/dlog.h>
#include <limits.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
#include <sys/stat.h>
#include "dtmffifo.h"
struct dtmf_fifo* dtmf_fifo_new(void) {
struct dtmf_fifo *d = NULL;
char p[PATH_MAX];
d = malloc(sizeof(struct dtmf_fifo));
assert(d);
memset(d, 0, sizeof(struct dtmf_fifo));
d->fd = -1;
d->dir = strdup("/tmp/ivamd.XXXXXX");
assert(d->dir);
if (!mkdtemp(d->dir)) {
daemon_log(LOG_ERR, "Failed to create temporary directory '%s': %s", d->dir, strerror(errno));
goto fail;
}
snprintf(p, sizeof(p), "%s/%s", d->dir, "dtmf");
d->fname = strdup(p);
assert(d->fname);
if (mkfifo(d->fname, 0700) != 0) {
daemon_log(LOG_ERR, "Failed to create FIFO '%s': %s", d->fname, strerror(errno));
goto fail;
}
if ((d->fd = open(d->fname, O_RDWR|O_NDELAY)) < 0) {
daemon_log(LOG_ERR, "Failed to open FIFO '%s': %s", d->fname, strerror(errno));
goto fail;
}
daemon_log(LOG_INFO, "Sucessfully opened DTMF FIFO '%s'.", d->fname);
return d;
fail:
if (d)
dtmf_fifo_free(d);
return NULL;
}
void dtmf_fifo_free(struct dtmf_fifo *d) {
assert(d);
if (d->fd >= 0)
close(d->fd);
if (d->fname) {
unlink(d->fname);
free(d->fname);
}
if (d->dir) {
rmdir(d->dir);
free(d->dir);
}
free(d);
}
void dtmf_fifo_pass(struct dtmf_fifo *d, char c) {
assert(d && d->fd >= 0);
daemon_log(LOG_INFO, "Recieved DTMF character '%c'", c);
if (write(d->fd, &c, 1) != 1)
daemon_log(LOG_ERR, "Failed to write to DTMF FIFO: %s", strerror(errno));
}
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