static char *parse_host(const char *s, uint16_t *ret_port) {
pa_assert(s);
pa_assert(ret_port);
if (*s == '[') {
char *e;
if (!(e = strchr(s+1, ']')))
return NULL;
if (e[1] == ':') {
uint32_t p;
if (pa_atou(e+2, &p) < 0)
return NULL;
*ret_port = (uint16_t) p;
} else if (e[1] != 0)
return NULL;
return pa_xstrndup(s+1, (size_t) (e-s-1));
} else {
char *e;
uint32_t p;
if (!(e = strrchr(s, ':')))
return pa_xstrdup(s);
if (pa_atou(e+1, &p) < 0)
return NULL;
*ret_port = (uint16_t) p;
return pa_xstrndup(s, (size_t) (e-s));
}
}
static void jack_error_func(const char*t) {
char *s;
s = pa_xstrndup(t, strcspn(t, "\n\r"));
pa_log_warn("JACK error >%s<", s);
pa_xfree(s);
}
static void parse(pa_dynarray*a, const char *s, unsigned args) {
int infty = 0;
const char delimiter[] = " \t\n\r";
const char *p;
pa_assert(a);
pa_assert(s);
if (args == 0)
infty = 1;
p = s+strspn(s, delimiter);
while (*p && (infty || args >= 2)) {
size_t l = strcspn(p, delimiter);
char *n = pa_xstrndup(p, l);
pa_dynarray_append(a, n);
p += l;
p += strspn(p, delimiter);
args--;
}
if (args && *p) {
char *n = pa_xstrdup(p);
pa_dynarray_append(a, n);
}
}
static char *
get_cpuinfo_line(char *cpuinfo, const char *tag) {
char *line, *end, *colon;
if (!(line = strstr(cpuinfo, tag)))
return NULL;
if (!(end = strchr(line, '\n')))
return NULL;
if (!(colon = strchr(line, ':')))
return NULL;
if (++colon >= end)
return NULL;
return pa_xstrndup(colon, end - colon);
}
static pa_hook_result_t parameters_changed_cb(pa_core *c, meego_parameter_update_args *ua, struct algorithm *alg) {
pa_assert(c);
pa_assert(ua);
pa_assert(alg);
alg->status = ua->status;
algorithm_reset(alg);
if (ua->mode)
alg->mode = pa_xstrdup(ua->mode);
if (ua->parameters) {
pa_assert(ua->length > 0);
alg->parameters = pa_xstrndup(ua->parameters, ua->length);
}
pa_log_debug("parameters_changed_cb, status=%s, mode=%s, params=%s", status_to_string(alg->status),
pa_strnull(alg->mode),
pa_strnull(alg->parameters));
return PA_HOOK_OK;
}
static pa_bool_t get_parameters_cb(const void *base_parameters, unsigned len_base_parameters,
void **parameters, unsigned *len_parameters, void *userdata) {
struct algorithm *alg = (struct algorithm*)userdata;
if (alg->modified_parameters) {
pa_xfree(alg->modified_parameters);
alg->modified_parameters = NULL;
}
/* As the modifier implementor, we own the modified data */
if (base_parameters) {
char *params = pa_xstrndup(base_parameters, len_base_parameters);
alg->modified_parameters = pa_sprintf_malloc("%s-modified", params);
pa_xfree(params);
} else
alg->modified_parameters = pa_xstrdup("modified");
*parameters = alg->modified_parameters;
*len_parameters = strlen(*parameters);
return TRUE;
}
pa_format_info* pa_format_info_from_string(const char *str) {
pa_format_info *f = pa_format_info_new();
char *encoding = NULL, *properties = NULL;
size_t pos;
pos = strcspn(str, ",");
encoding = pa_xstrndup(str, pos);
f->encoding = pa_encoding_from_string(pa_strip(encoding));
if (f->encoding == PA_ENCODING_INVALID)
goto error;
if (pos != strlen(str)) {
pa_proplist *plist;
properties = pa_xstrdup(&str[pos+1]);
plist = pa_proplist_from_string(properties);
if (!plist)
goto error;
pa_proplist_free(f->plist);
f->plist = plist;
}
out:
if (encoding)
pa_xfree(encoding);
if (properties)
pa_xfree(properties);
return f;
error:
pa_format_info_free(f);
f = NULL;
goto out;
}
pa_sdp_info *pa_sdp_parse(const char *t, pa_sdp_info *i, int is_goodbye) {
uint16_t port = 0;
bool ss_valid = false;
pa_assert(t);
pa_assert(i);
i->origin = i->session_name = NULL;
i->salen = 0;
i->payload = 255;
if (!pa_startswith(t, PA_SDP_HEADER)) {
pa_log("Failed to parse SDP data: invalid header.");
goto fail;
}
t += sizeof(PA_SDP_HEADER)-1;
while (*t) {
size_t l;
l = strcspn(t, "\n");
if (l <= 2) {
pa_log("Failed to parse SDP data: line too short: >%s<.", t);
goto fail;
}
if (pa_startswith(t, "o="))
i->origin = pa_xstrndup(t+2, l-2);
else if (pa_startswith(t, "s="))
i->session_name = pa_xstrndup(t+2, l-2);
else if (pa_startswith(t, "c=IN IP4 ")) {
char a[64];
size_t k;
k = l-8 > sizeof(a) ? sizeof(a) : l-8;
pa_strlcpy(a, t+9, k);
a[strcspn(a, "/")] = 0;
if (inet_pton(AF_INET, a, &((struct sockaddr_in*) &i->sa)->sin_addr) <= 0) {
pa_log("Failed to parse SDP data: bad address: >%s<.", a);
goto fail;
}
((struct sockaddr_in*) &i->sa)->sin_family = AF_INET;
((struct sockaddr_in*) &i->sa)->sin_port = 0;
i->salen = sizeof(struct sockaddr_in);
#ifdef HAVE_IPV6
} else if (pa_startswith(t, "c=IN IP6 ")) {
char a[64];
size_t k;
k = l-8 > sizeof(a) ? sizeof(a) : l-8;
pa_strlcpy(a, t+9, k);
a[strcspn(a, "/")] = 0;
if (inet_pton(AF_INET6, a, &((struct sockaddr_in6*) &i->sa)->sin6_addr) <= 0) {
pa_log("Failed to parse SDP data: bad address: >%s<.", a);
goto fail;
}
((struct sockaddr_in6*) &i->sa)->sin6_family = AF_INET6;
((struct sockaddr_in6*) &i->sa)->sin6_port = 0;
i->salen = sizeof(struct sockaddr_in6);
#endif
} else if (pa_startswith(t, "m=audio ")) {
if (i->payload > 127) {
int _port, _payload;
if (sscanf(t+8, "%i RTP/AVP %i", &_port, &_payload) == 2) {
if (_port <= 0 || _port > 0xFFFF) {
pa_log("Failed to parse SDP data: invalid port %i.", _port);
goto fail;
}
if (_payload < 0 || _payload > 127) {
pa_log("Failed to parse SDP data: invalid payload %i.", _payload);
goto fail;
}
port = (uint16_t) _port;
i->payload = (uint8_t) _payload;
if (pa_rtp_sample_spec_from_payload(i->payload, &i->sample_spec))
ss_valid = true;
}
}
} else if (pa_startswith(t, "a=rtpmap:")) {
if (i->payload <= 127) {
char c[64];
int _payload;
if (sscanf(t+9, "%i %64c", &_payload, c) == 2) {
if (_payload < 0 || _payload > 127) {
pa_log("Failed to parse SDP data: invalid payload %i.", _payload);
goto fail;
}
if (_payload == i->payload) {
c[strcspn(c, "\n")] = 0;
if (parse_sdp_sample_spec(&i->sample_spec, c))
ss_valid = true;
}
}
}
}
t += l;
if (*t == '\n')
t++;
}
if (!i->origin || (!is_goodbye && (!i->salen || i->payload > 127 || !ss_valid || port == 0))) {
pa_log("Failed to parse SDP data: missing data.");
goto fail;
}
if (((struct sockaddr*) &i->sa)->sa_family == AF_INET)
((struct sockaddr_in*) &i->sa)->sin_port = htons(port);
else
((struct sockaddr_in6*) &i->sa)->sin6_port = htons(port);
return i;
fail:
pa_xfree(i->origin);
pa_xfree(i->session_name);
return NULL;
}
int pa_context_connect(
pa_context *c,
const char *server,
pa_context_flags_t flags,
const pa_spawn_api *api) {
int r = -1;
pa_assert(c);
pa_assert(PA_REFCNT_VALUE(c) >= 1);
PA_CHECK_VALIDITY(c, !pa_detect_fork(), PA_ERR_FORKED);
PA_CHECK_VALIDITY(c, c->state == PA_CONTEXT_UNCONNECTED, PA_ERR_BADSTATE);
PA_CHECK_VALIDITY(c, !(flags & ~(PA_CONTEXT_NOAUTOSPAWN|PA_CONTEXT_NOFAIL)), PA_ERR_INVALID);
PA_CHECK_VALIDITY(c, !server || *server, PA_ERR_INVALID);
if (server)
c->conf->autospawn = FALSE;
else
server = c->conf->default_server;
pa_context_ref(c);
c->no_fail = !!(flags & PA_CONTEXT_NOFAIL);
c->server_specified = !!server;
pa_assert(!c->server_list);
if (server) {
if (!(c->server_list = pa_strlist_parse(server))) {
pa_context_fail(c, PA_ERR_INVALIDSERVER);
goto finish;
}
} else {
char *d;
/* Prepend in reverse order */
/* Follow the X display */
if (c->conf->auto_connect_display) {
if ((d = getenv("DISPLAY"))) {
d = pa_xstrndup(d, strcspn(d, ":"));
if (*d)
c->server_list = pa_strlist_prepend(c->server_list, d);
pa_xfree(d);
}
}
/* Add TCP/IP on the localhost */
if (c->conf->auto_connect_localhost) {
c->server_list = pa_strlist_prepend(c->server_list, "tcp6:[::1]");
c->server_list = pa_strlist_prepend(c->server_list, "tcp4:127.0.0.1");
}
/* The system wide instance via PF_LOCAL */
c->server_list = pa_strlist_prepend(c->server_list, PA_SYSTEM_RUNTIME_PATH PA_PATH_SEP PA_NATIVE_DEFAULT_UNIX_SOCKET);
/* The user instance via PF_LOCAL */
c->server_list = prepend_per_user(c->server_list);
}
/* Set up autospawning */
if (!(flags & PA_CONTEXT_NOAUTOSPAWN) && c->conf->autospawn) {
#ifdef HAVE_GETUID
if (getuid() == 0)
pa_log_debug("Not doing autospawn since we are root.");
else {
c->do_autospawn = TRUE;
if (api)
c->spawn_api = *api;
}
#endif
}
pa_context_set_state(c, PA_CONTEXT_CONNECTING);
r = try_next_connection(c);
finish:
pa_context_unref(c);
return r;
}
