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Add (commented out) 'must be bound' checking

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This commit is contained in:
Michael Graff
2000-05-10 21:17:49 +00:00
parent 18959172ab
commit f019e00452
1 changed files with 68 additions and 36 deletions
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104
lib/isc/unix/socket.c
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@@ -117,16 +117,16 @@ typedef isc_event_t intev_t;
struct isc_socket {
/* Not locked. */
unsigned int magic;
isc_socketmgr_t *manager;
isc_mutex_t lock;
isc_sockettype_t type;
unsigned int magic;
isc_socketmgr_t *manager;
isc_mutex_t lock;
isc_sockettype_t type;
/* Locked by socket lock. */
unsigned int references;
int fd;
isc_result_t recv_result;
isc_result_t send_result;
unsigned int references;
int fd;
isc_result_t recv_result;
isc_result_t send_result;
ISC_LIST(isc_socketevent_t) send_list;
ISC_LIST(isc_socketevent_t) recv_list;
@@ -138,45 +138,46 @@ struct isc_socket {
* writable. These are statically allocated and never freed.
* They will be set to non-purgable before use.
*/
intev_t readable_ev;
intev_t writable_ev;
intev_t readable_ev;
intev_t writable_ev;
isc_sockaddr_t address; /* remote address */
isc_sockaddr_t address; /* remote address */
unsigned int pending_recv : 1,
pending_send : 1,
pending_accept : 1,
listener : 1, /* listener socket */
connected : 1,
connecting : 1; /* connect pending */
unsigned int pending_recv : 1,
pending_send : 1,
pending_accept : 1,
listener : 1, /* listener socket */
connected : 1,
connecting : 1, /* connect pending */
bound : 1; /* bound to local addr */
#ifdef ISC_NET_RECVOVERFLOW
unsigned char overflow; /* used for MSG_TRUNC fake */
unsigned char overflow; /* used for MSG_TRUNC fake */
#endif
#ifdef USE_CMSG
unsigned char *cmsg;
unsigned int cmsglen;
unsigned char *cmsg;
unsigned int cmsglen;
#endif
};
#define SOCKET_MANAGER_MAGIC 0x494f6d67U /* IOmg */
#define VALID_MANAGER(m) ((m) != NULL && \
(m)->magic == SOCKET_MANAGER_MAGIC)
#define SOCKET_MANAGER_MAGIC 0x494f6d67U /* IOmg */
#define VALID_MANAGER(m) ((m) != NULL && \
(m)->magic == SOCKET_MANAGER_MAGIC)
struct isc_socketmgr {
/* Not locked. */
unsigned int magic;
isc_mem_t *mctx;
isc_mutex_t lock;
unsigned int magic;
isc_mem_t *mctx;
isc_mutex_t lock;
/* Locked by manager lock. */
unsigned int nsockets; /* sockets managed */
isc_thread_t watcher;
isc_condition_t shutdown_ok;
fd_set read_fds;
fd_set write_fds;
isc_socket_t *fds[FD_SETSIZE];
int fdstate[FD_SETSIZE];
int maxfd;
int pipe_fds[2];
unsigned int nsockets; /* sockets managed */
isc_thread_t watcher;
isc_condition_t shutdown_ok;
fd_set read_fds;
fd_set write_fds;
isc_socket_t *fds[FD_SETSIZE];
int fdstate[FD_SETSIZE];
int maxfd;
int pipe_fds[2];
};
#define CLOSED 0 /* this one must be zero */
@@ -1025,6 +1026,7 @@ allocate_socket(isc_socketmgr_t *manager, isc_sockettype_t type,
sock->listener = 0;
sock->connected = 0;
sock->connecting = 0;
sock->bound = 0;
sock->recv_result = ISC_R_SUCCESS;
sock->send_result = ISC_R_SUCCESS;
@@ -2127,6 +2129,10 @@ isc_socket_recvv(isc_socket_t *sock, isc_bufferlist_t *buflist,
LOCK(&sock->lock);
#if 0 /* XXXMLG */
INSIST(sock->bound);
#endif
dev = allocate_socketevent(sock, ISC_SOCKEVENT_RECVDONE, action, arg);
if (dev == NULL) {
UNLOCK(&sock->lock);
@@ -2237,6 +2243,10 @@ isc_socket_recv(isc_socket_t *sock, isc_region_t *region, unsigned int minimum,
LOCK(&sock->lock);
#if 0 /* XXXMLG */
INSIST(sock->bound);
#endif
dev = allocate_socketevent(sock, ISC_SOCKEVENT_RECVDONE, action, arg);
if (dev == NULL) {
UNLOCK(&sock->lock);
@@ -2346,6 +2356,10 @@ isc_socket_sendto(isc_socket_t *sock, isc_region_t *region,
LOCK(&sock->lock);
#if 0 /* XXXMLG */
INSIST(sock->bound);
#endif
dev = allocate_socketevent(sock, ISC_SOCKEVENT_SENDDONE, action, arg);
if (dev == NULL) {
UNLOCK(&sock->lock);
@@ -2526,6 +2540,10 @@ isc_socket_bind(isc_socket_t *sock, isc_sockaddr_t *sockaddr)
LOCK(&sock->lock);
#if 0 /* XXXMLG */
INSIST(!sock->bound);
#endif
if (setsockopt(sock->fd, SOL_SOCKET, SO_REUSEADDR, (void *)&on,
sizeof on) < 0) {
UNEXPECTED_ERROR(__FILE__, __LINE__, "setsockopt(%d) failed",
@@ -2550,12 +2568,14 @@ isc_socket_bind(isc_socket_t *sock, isc_sockaddr_t *sockaddr)
}
}
sock->bound = 1;
UNLOCK(&sock->lock);
return (ISC_R_SUCCESS);
}
/*
* set up to listen on a given socket. We do this by creating an internal
* Set up to listen on a given socket. We do this by creating an internal
* event that will be dispatched when the socket has read activity. The
* watcher will send the internal event to the task when there is a new
* connection.
@@ -2572,6 +2592,9 @@ isc_socket_listen(isc_socket_t *sock, unsigned int backlog)
LOCK(&sock->lock);
REQUIRE(!sock->listener);
#if 0 /* XXXMLG */
REQUIRE(sock->bound);
#endif
REQUIRE(sock->type == isc_sockettype_tcp);
if (backlog == 0)
@@ -2729,6 +2752,7 @@ isc_socket_connect(isc_socket_t *sock, isc_sockaddr_t *addr,
*/
if (cc == 0) {
sock->connected = 1;
sock->bound = 1;
dev->result = ISC_R_SUCCESS;
isc_task_send(task, (isc_event_t **)&dev);
@@ -3046,6 +3070,10 @@ isc_socket_recvmark(isc_socket_t *sock,
LOCK(&sock->lock);
#if 0 /* XXXMLG */
INSIST(sock->bound);
#endif
dev = allocate_socketevent(sock, ISC_SOCKEVENT_RECVMARK, action, arg);
if (dev == NULL) {
UNLOCK(&sock->lock);
@@ -3099,6 +3127,10 @@ isc_socket_sendmark(isc_socket_t *sock,
LOCK(&sock->lock);
#if 0 /* XXXMLG */
INSIST(sock->bound);
#endif
dev = allocate_socketevent(sock, ISC_SOCKEVENT_SENDMARK, action, arg);
if (dev == NULL) {
UNLOCK(&sock->lock);