119 lines
2.9 KiB
C
119 lines
2.9 KiB
C
/****************************************************************
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* *
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* Copyright 2001, 2013 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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/* Perform forks to priv'd gtmsecshr routine to remove ipc ids */
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#include "mdef.h"
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#include <sys/wait.h>
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#include <sys/sem.h>
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#include <sys/shm.h>
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#include <errno.h>
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#include "gtm_string.h"
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#include "gtm_limits.h"
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#include "io.h"
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#include "gtmsecshr.h"
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#include "secshr_client.h"
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#include "gtmmsg.h"
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#include "ipcrmid.h"
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#include "send_msg.h"
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#define REMIPC(op, ipcid) (send_mesg2gtmsecshr((unsigned int)(op), (unsigned int)(ipcid), (char *)NULL, 0))
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error_def(ERR_SYSCALL);
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/* General note - in the routines below (and indeed in general), if the "error" is not relevant to the current process
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* being able to continue, process should (at most) send the message to the operator log and continue. No gtm_putmsg()
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* to the console and continue. This just screws up the output console for the client.
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*/
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/* Remove a semaphore id : if the current process has no permissions to remove it by itself,
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* force it through gtmsecshr. If we are a debug build and $gtm_useproc is set, send it through
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* gtmsecshr anyway.
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*/
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int sem_rmid(int ipcid)
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{
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int status, save_errno;
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char buff[128];
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DCL_THREADGBL_ACCESS;
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SETUP_THREADGBL_ACCESS;
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DEBUG_ONLY(if (!TREF(gtm_usesecshr)))
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{
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if (-1 == semctl(ipcid, 0, IPC_RMID))
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{
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if (EPERM != errno)
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{
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save_errno = errno;
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SNPRINTF(buff, 128, "semctl(IPC_RMID, %d)", ipcid);
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send_msg_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_SYSCALL, 5, LEN_AND_STR(buff), CALLFROM, save_errno);
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errno = save_errno;
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return -1;
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} else
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{
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if (0 != (status = REMIPC(REMOVE_SEM, ipcid)))
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{
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errno = status;
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return -1;
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}
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}
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}
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}
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# ifdef DEBUG
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else if (0 != (status = REMIPC(REMOVE_SEM, ipcid)))
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{
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errno = status;
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return -1;
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}
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# endif
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return 0;
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}
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/* Remove a shared memory id */
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int shm_rmid(int ipcid)
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{
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int status, save_errno;
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char buff[128];
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DCL_THREADGBL_ACCESS;
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SETUP_THREADGBL_ACCESS;
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DEBUG_ONLY(if (!TREF(gtm_usesecshr)))
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{
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if (-1 == shmctl(ipcid, IPC_RMID, NULL))
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{
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if (EPERM != errno)
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{
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save_errno = errno;
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SNPRINTF(buff, 128, "semctl(IPC_RMID, %d)", ipcid);
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send_msg_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_SYSCALL, 5, LEN_AND_STR(buff), CALLFROM, save_errno);
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errno = save_errno;
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return -1;
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} else
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{
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if (0 != (status = REMIPC(REMOVE_SHM, ipcid)))
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{
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errno = status;
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return -1;
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}
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}
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}
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}
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# ifdef DEBUG
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else if (0 != (status = REMIPC(REMOVE_SHM, ipcid)))
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{
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errno = status;
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return -1;
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}
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# endif
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return 0;
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}
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