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direct plugins - change group according ipc_gid for the socket file

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This patch fixes problem when ipc_perm are 0660 and you want to share dmix
with more users in the specified group.
This commit is contained in:
Jaroslav Kysela 2005-09-08 06:48:30 +00:00
parent af6544a274
commit 19284bd325
1 changed files with 11 additions and 3 deletions
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14
src/pcm/pcm_direct.c
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@ -163,7 +163,7 @@ static int get_tmp_name(char *filename, size_t size)
return 0; return 0;
} }
static int make_local_socket(const char *filename, int server, mode_t ipc_perm) static int make_local_socket(const char *filename, int server, mode_t ipc_perm, int ipc_gid)
{ {
size_t l = strlen(filename); size_t l = strlen(filename);
size_t size = offsetof(struct sockaddr_un, sun_path) + l; size_t size = offsetof(struct sockaddr_un, sun_path) + l;
@ -194,6 +194,14 @@ static int make_local_socket(const char *filename, int server, mode_t ipc_perm)
int result = -errno; int result = -errno;
SYSERR("chmod failed: %s", filename); SYSERR("chmod failed: %s", filename);
close(sock); close(sock);
unlink(filename);
return result;
}
if (chown(filename, -1, ipc_gid) < 0) {
int result = -errno;
SYSERR("chmod failed: %s", filename);
close(sock);
unlink(filename);
return result; return result;
} }
} }
@ -383,7 +391,7 @@ int snd_pcm_direct_server_create(snd_pcm_direct_t *dmix)
if (ret < 0) if (ret < 0)
return ret; return ret;
ret = make_local_socket(dmix->shmptr->socket_name, 1, dmix->ipc_perm); ret = make_local_socket(dmix->shmptr->socket_name, 1, dmix->ipc_perm, dmix->ipc_gid);
if (ret < 0) if (ret < 0)
return ret; return ret;
dmix->server_fd = ret; dmix->server_fd = ret;
@ -435,7 +443,7 @@ int snd_pcm_direct_client_connect(snd_pcm_direct_t *dmix)
int ret; int ret;
unsigned char buf; unsigned char buf;
ret = make_local_socket(dmix->shmptr->socket_name, 0, dmix->ipc_perm); ret = make_local_socket(dmix->shmptr->socket_name, 0, -1, -1);
if (ret < 0) if (ret < 0)
return ret; return ret;
dmix->comm_fd = ret; dmix->comm_fd = ret;