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/****************************************************************
* *
* Copyright (c) 2001-2022 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. *
* *
****************************************************************/
/* Perform forks to priv'd gtmsecshr routine to remove ipc ids */
#include "mdef.h"
#include <sys/wait.h>
#include <sys/sem.h>
#include <sys/shm.h>
#include <errno.h>
#include "gtm_string.h"
#include "gtm_limits.h"
#include "io.h"
#include "gtmsecshr.h"
#include "secshr_client.h"
#include "gtmmsg.h"
#include "ipcrmid.h"
#include "send_msg.h"
#define REMIPC(op, ipcid) (send_mesg2gtmsecshr((unsigned int)(op), (unsigned int)(ipcid), (char *)NULL, 0))
error_def(ERR_SYSCALL);
/* General note - in the routines below (and indeed in general), if the "error" is not relevant to the current process
* being able to continue, process should (at most) send the message to the operator log and continue. No gtm_putmsg()
* to the console and continue. This just screws up the output console for the client.
*/
/* Remove a semaphore id : if the current process has no permissions to remove it by itself,
* force it through gtmsecshr. If we are a debug build and $gtm_useproc is set, send it through
* gtmsecshr anyway.
*/
int sem_rmid(int ipcid)
{
int status, save_errno;
char buff[128];
DCL_THREADGBL_ACCESS;
SETUP_THREADGBL_ACCESS;
DEBUG_ONLY(if (!TREF(gtm_usesecshr)))
{
if (-1 == semctl(ipcid, 0, IPC_RMID))
{
# ifndef _AIX
if (EIDRM == errno)
return 0;
# endif
if (EPERM != errno)
{
save_errno = errno;
SNPRINTF(buff, 128, "semctl(IPC_RMID, %d)", ipcid);
send_msg_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_SYSCALL, 5, LEN_AND_STR(buff), CALLFROM, save_errno);
errno = save_errno;
return -1;
} else
{
if (0 != (status = REMIPC(REMOVE_SEM, ipcid)))
{
errno = status;
return -1;
}
}
}
}
# ifdef DEBUG
else if (0 != (status = REMIPC(REMOVE_SEM, ipcid)))
{
errno = status;
return -1;
}
# endif
return 0;
}
/* Remove a shared memory id */
int shm_rmid(int ipcid)
{
int status, save_errno;
char buff[128];
DCL_THREADGBL_ACCESS;
SETUP_THREADGBL_ACCESS;
DEBUG_ONLY(if (!TREF(gtm_usesecshr)))
{
if (-1 == shmctl(ipcid, IPC_RMID, NULL))
{
if (EPERM != errno)
{
save_errno = errno;
SNPRINTF(buff, 128, "shmctl(IPC_RMID, %d)", ipcid);
send_msg_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_SYSCALL, 5, LEN_AND_STR(buff), CALLFROM, save_errno);
errno = save_errno;
return -1;
} else
{
if (0 != (status = REMIPC(REMOVE_SHM, ipcid)))
{
errno = status;
return -1;
}
}
}
}
# ifdef DEBUG
else if (0 != (status = REMIPC(REMOVE_SHM, ipcid)))
{
errno = status;
return -1;
}
# endif
return 0;
}
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