mariadb/vio/viosocket.c
unknown cfab46f546 Update copyright
Fixed memory leak on shutdown (Affects the embedded version & MyODBC)


client/client_priv.h:
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myisam/ft_test1.h:
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myisam/mi_cache.c:
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myisam/mi_dynrec.c:
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myisam/mi_range.c:
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myisam/mi_rfirst.c:
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myisam/mi_rnext_same.c:
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mysql-test/r/gcc296.result:
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mysql-test/r/innodb.result:
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mysql-test/r/join_outer.result:
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mysys/array.c:
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mysys/charset.c:
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mysys/checksum.c:
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mysys/default.c:
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mysys/errors.c:
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mysys/getopt.c:
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mysys/my_fopen.c:
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mysys/my_fstream.c:
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mysys/my_getwd.c:
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mysys/my_init.c:
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mysys/my_lib.c:
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mysys/my_lock.c:
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mysys/my_lockmem.c:
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mysys/my_lread.c:
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readline/bind.c:
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readline/complete.c:
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readline/display.c:
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readline/funmap.c:
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readline/histexpand.c:
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readline/histfile.c:
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readline/history.c:
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readline/history.h:
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readline/input.c:
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readline/kill.c:
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readline/readline.c:
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readline/readline.h:
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readline/vi_mode.c:
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sql/cache_manager.cc:
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sql/cache_manager.h:
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strings/strend.c:
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strings/strings-not-used.h:
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strings/strrchr.c:
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strings/strstr.c:
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strings/strto.c:
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strings/strtoll.c:
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strings/strtoul.c:
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strings/strtoull.c:
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strings/strxmov.c:
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strings/strxnmov.c:
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strings/t_ctype.h:
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strings/udiv.c:
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tools/mysqlmanager.c:
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vio/test-ssl.c:
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vio/test-sslclient.c:
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vio/test-sslserver.c:
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vio/vio.c:
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vio/viosocket.c:
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vio/viossl.c:
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vio/viosslfactories.c:
  Update copyright
vio/viotest-ssl.c:
  Update copyright
2001-12-06 14:10:51 +02:00

327 lines
7.3 KiB
C

/* Copyright (C) 2000 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/*
Note that we can't have assertion on file descriptors; The reason for
this is that during mysql shutdown, another thread can close a file
we are working on. In this case we should just return read errors from
the file descriptior.
*/
#define DONT_MAP_VIO
#include <my_global.h>
#include <mysql_com.h>
#include <errno.h>
#include <violite.h>
#include <my_sys.h>
#include <my_net.h>
#include <m_string.h>
#ifndef __WIN__
#define HANDLE void *
#endif
void vio_delete(Vio* vio)
{
/* It must be safe to delete null pointers. */
/* This matches the semantics of C++'s delete operator. */
if (vio)
{
if (vio->type != VIO_CLOSED)
vio_close(vio);
my_free((gptr) vio,MYF(0));
}
}
int vio_errno(Vio *vio __attribute__((unused)))
{
return socket_errno; /* On Win32 this mapped to WSAGetLastError() */
}
int vio_read(Vio * vio, gptr buf, int size)
{
int r;
DBUG_ENTER("vio_read");
DBUG_PRINT("enter", ("sd=%d, buf=%p, size=%d", vio->sd, buf, size));
#ifdef __WIN__
if (vio->type == VIO_TYPE_NAMEDPIPE)
{
DWORD length;
if (!ReadFile(vio->hPipe, buf, size, &length, NULL))
DBUG_RETURN(-1);
DBUG_RETURN(length);
}
r = recv(vio->sd, buf, size,0);
#else
errno=0; /* For linux */
r = read(vio->sd, buf, size);
#endif /* __WIN__ */
#ifndef DBUG_OFF
if (r < 0)
{
DBUG_PRINT("vio_error", ("Got error %d during read",errno));
}
#endif /* DBUG_OFF */
DBUG_PRINT("exit", ("%d", r));
DBUG_RETURN(r);
}
int vio_write(Vio * vio, const gptr buf, int size)
{
int r;
DBUG_ENTER("vio_write");
DBUG_PRINT("enter", ("sd=%d, buf=%p, size=%d", vio->sd, buf, size));
#ifdef __WIN__
if ( vio->type == VIO_TYPE_NAMEDPIPE)
{
DWORD length;
if (!WriteFile(vio->hPipe, (char*) buf, size, &length, NULL))
DBUG_RETURN(-1);
DBUG_RETURN(length);
}
r = send(vio->sd, buf, size,0);
#else
r = write(vio->sd, buf, size);
#endif /* __WIN__ */
#ifndef DBUG_OFF
if (r < 0)
{
DBUG_PRINT("vio_error", ("Got error on write: %d",socket_errno));
}
#endif /* DBUG_OFF */
DBUG_PRINT("exit", ("%d", r));
DBUG_RETURN(r);
}
int vio_blocking(Vio * vio __attribute__((unused)), my_bool set_blocking_mode)
{
int r=0;
DBUG_ENTER("vio_blocking");
DBUG_PRINT("enter", ("set_blocking_mode: %d", (int) set_blocking_mode));
#if !defined(HAVE_OPENSSL)
#if !defined(___WIN__) && !defined(__EMX__)
#if !defined(NO_FCNTL_NONBLOCK)
if (vio->sd >= 0)
{
int old_fcntl=vio->fcntl_mode;
if (set_blocking_mode)
vio->fcntl_mode &= ~O_NONBLOCK; /* clear bit */
else
vio->fcntl_mode |= O_NONBLOCK; /* set bit */
if (old_fcntl != vio->fcntl_mode)
r = fcntl(vio->sd, F_SETFL, vio->fcntl_mode);
}
#endif /* !defined(NO_FCNTL_NONBLOCK) */
#else /* !defined(__WIN__) && !defined(__EMX__) */
#ifndef __EMX__
if (vio->type != VIO_TYPE_NAMEDPIPE)
#endif
{
ulong arg;
int old_fcntl=vio->fcntl_mode;
if (set_blocking_mode)
{
arg = 0;
vio->fcntl_mode &= ~O_NONBLOCK; /* clear bit */
}
else
{
arg = 1;
vio->fcntl_mode |= O_NONBLOCK; /* set bit */
}
if (old_fcntl != vio->fcntl_mode)
r = ioctlsocket(vio->sd,FIONBIO,(void*) &arg, sizeof(arg));
}
#endif /* !defined(__WIN__) && !defined(__EMX__) */
#endif /* !defined (HAVE_OPENSSL) */
DBUG_PRINT("exit", ("return %d", r));
DBUG_RETURN(r);
}
my_bool
vio_is_blocking(Vio * vio)
{
my_bool r;
DBUG_ENTER("vio_is_blocking");
r = !(vio->fcntl_mode & O_NONBLOCK);
DBUG_PRINT("exit", ("%d", (int) r));
DBUG_RETURN(r);
}
int vio_fastsend(Vio * vio __attribute__((unused)))
{
int r=0;
DBUG_ENTER("vio_fastsend");
#ifdef IPTOS_THROUGHPUT
{
#ifndef __EMX__
int tos = IPTOS_THROUGHPUT;
if (!setsockopt(vio->sd, IPPROTO_IP, IP_TOS, (void *) &tos, sizeof(tos)))
#endif /* !__EMX__ */
{
int nodelay = 1;
if (setsockopt(vio->sd, IPPROTO_TCP, TCP_NODELAY, (void *) &nodelay,
sizeof(nodelay))) {
DBUG_PRINT("warning",
("Couldn't set socket option for fast send"));
r= -1;
}
}
}
#endif /* IPTOS_THROUGHPUT */
DBUG_PRINT("exit", ("%d", r));
DBUG_RETURN(r);
}
int vio_keepalive(Vio* vio, my_bool set_keep_alive)
{
int r=0;
uint opt = 0;
DBUG_ENTER("vio_keepalive");
DBUG_PRINT("enter", ("sd=%d, set_keep_alive=%d", vio->sd, (int)
set_keep_alive));
if (vio->type != VIO_TYPE_NAMEDPIPE)
{
if (set_keep_alive)
opt = 1;
r = setsockopt(vio->sd, SOL_SOCKET, SO_KEEPALIVE, (char *) &opt,
sizeof(opt));
}
DBUG_RETURN(r);
}
my_bool
vio_should_retry(Vio * vio __attribute__((unused)))
{
int en = socket_errno;
return (en == SOCKET_EAGAIN || en == SOCKET_EINTR ||
en == SOCKET_EWOULDBLOCK);
}
int vio_close(Vio * vio)
{
int r;
DBUG_ENTER("vio_close");
#ifdef __WIN__
if (vio->type == VIO_TYPE_NAMEDPIPE)
{
#if defined(__NT__) && defined(MYSQL_SERVER)
CancelIo(vio->hPipe);
DisconnectNamedPipe(vio->hPipe);
#endif
r=CloseHandle(vio->hPipe);
}
else if (vio->type != VIO_CLOSED)
#endif /* __WIN__ */
{
r=0;
if (shutdown(vio->sd,2))
r= -1;
if (closesocket(vio->sd))
r= -1;
}
if (r)
{
DBUG_PRINT("vio_error", ("close() failed, error: %d",socket_errno));
/* FIXME: error handling (not critical for MySQL) */
}
vio->type= VIO_CLOSED;
vio->sd= -1;
DBUG_RETURN(r);
}
const char *vio_description(Vio * vio)
{
return vio->desc;
}
enum enum_vio_type vio_type(Vio* vio)
{
return vio->type;
}
my_socket vio_fd(Vio* vio)
{
return vio->sd;
}
my_bool vio_peer_addr(Vio * vio, char *buf)
{
DBUG_ENTER("vio_peer_addr");
DBUG_PRINT("enter", ("sd=%d", vio->sd));
if (vio->localhost)
{
strmov(buf,"127.0.0.1");
}
else
{
size_socket addrLen = sizeof(struct sockaddr);
if (getpeername(vio->sd, (struct sockaddr *) (& (vio->remote)),
&addrLen) != 0)
{
DBUG_PRINT("exit", ("getpeername, error: %d", socket_errno));
DBUG_RETURN(1);
}
my_inet_ntoa(vio->remote.sin_addr,buf);
}
DBUG_PRINT("exit", ("addr=%s", buf));
DBUG_RETURN(0);
}
void vio_in_addr(Vio *vio, struct in_addr *in)
{
DBUG_ENTER("vio_in_addr");
if (vio->localhost)
bzero((char*) in, sizeof(*in)); /* This should never be executed */
else
*in=vio->remote.sin_addr;
DBUG_VOID_RETURN;
}
/* Return 0 if there is data to be read */
my_bool vio_poll_read(Vio *vio,uint timeout)
{
#ifndef HAVE_POLL
return 0;
#else
struct pollfd fds;
int res;
DBUG_ENTER("vio_poll");
fds.fd=vio->sd;
fds.events=POLLIN;
fds.revents=0;
if ((res=poll(&fds,1,(int) timeout*1000)) <= 0)
{
DBUG_RETURN(res < 0 ? 0 : 1); /* Don't return 1 on errors */
}
DBUG_RETURN(fds.revents & POLLIN ? 0 : 1);
#endif
}