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/****************************************************************
* *
* Copyright (c) 2001-2018 Fidelity National Information *
* Services, Inc. and/or its subsidiaries. All rights reserved. *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
/* iosocket_bind.c */
#include "mdef.h"
#include <errno.h>
#include "gtm_time.h"
#include "gtm_socket.h"
#include "gtm_inet.h"
#include "gtm_netdb.h"
#include "gtm_ipv6.h"
#include "gtm_stdio.h"
#include "gtm_string.h"
#include "gt_timer.h"
#include "io.h"
#include "iotimer.h"
#include "iosocketdef.h"
#include "gtm_stdlib.h"
#include "gtm_unistd.h"
#include "min_max.h"
#include "gtm_stat.h"
#include "eintr_wrappers.h" /* for STAT_FILE and CHG_OWNER */
#define BOUND "BOUND"
#define IPV6_UNCERTAIN 2
error_def(ERR_GETNAMEINFO);
error_def(ERR_GETSOCKNAMERR);
error_def(ERR_GETSOCKOPTERR);
error_def(ERR_SETSOCKOPTERR);
error_def(ERR_SOCKBIND);
error_def(ERR_SOCKINIT);
error_def(ERR_TEXT);
boolean_t iosocket_bind(socket_struct *socketptr, int4 msec_timeout, boolean_t update_bufsiz, boolean_t newversion)
{
int temp_1 = 1;
char *errptr, *charptr;
int4 errlen, real_errno;
short len;
in_port_t actual_port;
boolean_t no_time_left = FALSE, ioerror;
d_socket_struct *dsocketptr;
struct addrinfo *ai_ptr;
char port_buffer[NI_MAXSERV];
int errcode;
ABS_TIME cur_time, end_time;
GTM_SOCKLEN_TYPE addrlen;
GTM_SOCKLEN_TYPE sockbuflen;
struct stat statbuf;
mode_t filemode;
dsocketptr = socketptr->dev;
ai_ptr = (struct addrinfo*)(&socketptr->local.ai);
assert(NULL != dsocketptr);
dsocketptr->iod->dollar.key[0] = '\0';
dsocketptr->iod->dollar.device[0] = '\0';
if (dsocketptr->iod->dollar.devicebuffer)
free(dsocketptr->iod->dollar.devicebuffer);
dsocketptr->iod->dollar.devicebuffer = NULL;
ioerror = socketptr->ioerror;
if (FD_INVALID != socketptr->temp_sd)
{
socketptr->sd = socketptr->temp_sd;
socketptr->temp_sd = FD_INVALID;
}
if (NO_M_TIMEOUT != msec_timeout)
{
sys_get_curr_time(&cur_time);
add_int_to_abs_time(&cur_time, msec_timeout, &end_time);
}
do
{
temp_1 = 1;
if (socket_local != socketptr->protocol)
{
if (-1 == setsockopt(socketptr->sd,
SOL_SOCKET, SO_REUSEADDR, &temp_1, SIZEOF(temp_1)))
{
real_errno = errno;
errptr = (char *)STRERROR(real_errno);
errlen = STRLEN(errptr);
SOCKET_FREE(socketptr);
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(7) ERR_SETSOCKOPTERR, 5,
RTS_ERROR_LITERAL("SO_REUSEADDR"), real_errno, errlen, errptr);
return FALSE;
}
# ifdef TCP_NODELAY
temp_1 = socketptr->nodelay ? 1 : 0;
if (-1 == setsockopt(socketptr->sd,
IPPROTO_TCP, TCP_NODELAY, &temp_1, SIZEOF(temp_1)))
{
real_errno = errno;
errptr = (char *)STRERROR(real_errno);
errlen = STRLEN(errptr);
SOCKET_FREE(socketptr);
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(7) ERR_SETSOCKOPTERR, 5,
RTS_ERROR_LITERAL("TCP_NODELAY"), real_errno, errlen, errptr);
return FALSE;
}
# endif
if (update_bufsiz)
{
if (-1 == setsockopt(socketptr->sd,
SOL_SOCKET, SO_RCVBUF, &socketptr->bufsiz, SIZEOF(socketptr->bufsiz)))
{
real_errno = errno;
errptr = (char *)STRERROR(real_errno);
errlen = STRLEN(errptr);
SOCKET_FREE(socketptr);
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(7) ERR_SETSOCKOPTERR, 5,
RTS_ERROR_LITERAL("SO_RCVBUF"), real_errno, errlen, errptr);
return FALSE;
}
} else
{
sockbuflen = SIZEOF(socketptr->bufsiz);
if (-1 == getsockopt(socketptr->sd,
SOL_SOCKET, SO_RCVBUF, &socketptr->bufsiz, &sockbuflen))
{
real_errno = errno;
errptr = (char *)STRERROR(real_errno);
errlen = STRLEN(errptr);
SOCKET_FREE(socketptr);
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(7) ERR_GETSOCKOPTERR, 5,
RTS_ERROR_LITERAL("SO_RCVBUF"), real_errno, errlen, errptr);
return FALSE;
}
}
}
if (socket_local == socketptr->protocol)
{
charptr = ((struct sockaddr_un *)(socketptr->local.sa))->sun_path;
STAT_FILE(charptr, &statbuf, temp_1);
if (!temp_1)
{
if (!S_ISSOCK(statbuf.st_mode))
{
temp_1 = -1; /* bypass unlink and issue error */
errno = ENOTSOCK;
}
}
if (!temp_1)
if (newversion)
temp_1 = UNLINK(charptr);
if (temp_1 && ENOENT != errno)
{
real_errno = errno;
if (ioerror)
SOCKET_FREE(socketptr);
SET_DOLLARDEVICE_ONECOMMA_STRERROR(dsocketptr->iod, real_errno);
if (ioerror)
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(3) ERR_SOCKBIND, 0, real_errno);
return FALSE;
}
}
temp_1 = bind(socketptr->sd, SOCKET_LOCAL_ADDR(socketptr), ai_ptr->ai_addrlen);
if (temp_1 < 0)
{
real_errno = errno;
no_time_left = TRUE;
switch (real_errno)
{
case EINTR:
break;
case EADDRINUSE:
if (NO_M_TIMEOUT != msec_timeout)
{
sys_get_curr_time(&cur_time);
cur_time = sub_abs_time(&end_time, &cur_time);
msec_timeout = (int4)(cur_time.at_sec * MILLISECS_IN_SEC +
/* Round up in order to prevent premature timeouts */
DIVIDE_ROUND_UP(cur_time.at_usec, MICROSECS_IN_MSEC));
if (msec_timeout > 0)
no_time_left = FALSE;
} else
no_time_left = FALSE; /* retry */
if (socket_local != socketptr->protocol)
break;
/* fall through for LOCAL sockets since it unlikely the file will go away */
default:
if (ioerror)
SOCKET_FREE(socketptr);
SET_DOLLARDEVICE_ONECOMMA_STRERROR(dsocketptr->iod, real_errno);
if (ioerror)
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(3) ERR_SOCKBIND, 0, real_errno);
return FALSE;
}
if (no_time_left)
return FALSE;
hiber_start(100);
close(socketptr->sd);
if (-1 == (socketptr->sd = socket(ai_ptr->ai_family,ai_ptr->ai_socktype,
ai_ptr->ai_protocol)))
{
real_errno = errno;
errptr = (char *)STRERROR(real_errno);
SET_DOLLARDEVICE_ONECOMMA_ERRSTR(dsocketptr->iod, errptr);
if (ioerror)
{
SOCKET_FREE(socketptr);
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(5) ERR_SOCKINIT, 3, real_errno, STRLEN(errptr),
errptr);
}
return FALSE;
}
}
} while (temp_1 < 0);
/* obtain actual port from the bound address if port 0 was specified */
addrlen = SOCKET_ADDRLEN(socketptr, ai_ptr, local);
if (-1 == getsockname(socketptr->sd, SOCKET_LOCAL_ADDR(socketptr), &addrlen))
{
real_errno = errno;
errptr = (char *)STRERROR(real_errno);
SET_DOLLARDEVICE_ONECOMMA_ERRSTR(dsocketptr->iod, errptr);
if (ioerror)
{
SOCKET_FREE(socketptr);
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(5) ERR_GETSOCKNAMERR, 3, real_errno, STRLEN(errptr), errptr);
}
return FALSE;
}
if (socket_local != socketptr->protocol)
{
assert(ai_ptr->ai_addrlen == addrlen); /* not right for local */
GETNAMEINFO(SOCKET_LOCAL_ADDR(socketptr), addrlen, NULL, 0, port_buffer, NI_MAXSERV, NI_NUMERICSERV, errcode);
if (0 != errcode)
{
real_errno = errno;
TEXT_ADDRINFO(errptr, errcode, real_errno);
SET_DOLLARDEVICE_ONECOMMA_ERRSTR(dsocketptr->iod, errptr);
if (ioerror)
{
SOCKET_FREE(socketptr);
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(6) ERR_GETNAMEINFO, 0, ERR_TEXT, 2, STRLEN(errptr), errptr);
}
return FALSE;
}
actual_port = ATOI(port_buffer);
if (0 == socketptr->local.port)
socketptr->local.port = actual_port;
assert(socketptr->local.port == actual_port);
} else
{
if (socketptr->filemode_mask)
{
charptr = ((struct sockaddr_un *)(socketptr->local.sa))->sun_path;
STAT_FILE(charptr, &statbuf, temp_1);
assertpro(!temp_1); /* we just created socket so it should be there */
filemode = (statbuf.st_mode & ~socketptr->filemode_mask) | socketptr->filemode;
temp_1 = CHMOD(charptr, filemode);
if (temp_1)
{
real_errno = errno;
errptr = (char *)STRERROR(real_errno);
SET_DOLLARDEVICE_ONECOMMA_ERRSTR(dsocketptr->iod, errptr);
if (ioerror)
{
SOCKET_FREE(socketptr);
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(9) ERR_SOCKINIT, 3, real_errno, STRLEN(errptr),
errptr, ERR_TEXT, 2, RTS_ERROR_LITERAL("setting protection"));
}
return FALSE;
}
}
if (((gid_t)-1 != socketptr->uic.grp) || ((uid_t)-1 != socketptr->uic.mem))
{
CHG_OWNER(charptr, socketptr->uic.mem, socketptr->uic.grp, temp_1);
if (temp_1)
{
real_errno = errno;
errptr = (char *)STRERROR(real_errno);
SET_DOLLARDEVICE_ONECOMMA_ERRSTR(dsocketptr->iod, errptr);
if (ioerror)
{
SOCKET_FREE(socketptr);
rts_error_csa(CSA_ARG(NULL) VARLSTCNT(9) ERR_SOCKINIT, 3, real_errno, STRLEN(errptr),
errptr, ERR_TEXT, 2, RTS_ERROR_LITERAL("setting ownership"));
}
return FALSE;
}
}
}
socketptr->state = socket_bound;
len = SIZEOF(BOUND) - 1;
memcpy(&dsocketptr->iod->dollar.key[0], BOUND, len);
dsocketptr->iod->dollar.key[len++] = '|';
memcpy(&dsocketptr->iod->dollar.key[len], socketptr->handle, socketptr->handle_len);
len += socketptr->handle_len;
dsocketptr->iod->dollar.key[len++] = '|';
if (socket_local != socketptr->protocol)
SNPRINTF(&dsocketptr->iod->dollar.key[len], DD_BUFLEN, "%d", socketptr->local.port);
else /* path goes in $key */
strncpy(&dsocketptr->iod->dollar.key[len], ((struct sockaddr_un *)(socketptr->local.sa))->sun_path,
DD_BUFLEN - len - 1);
dsocketptr->iod->dollar.key[DD_BUFLEN - 1] = '\0';
return TRUE;
}
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