michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:  * File: pripc.c
michael@0:  *
michael@0:  * Description: functions for IPC support
michael@0:  */
michael@0: 
michael@0: #include "primpl.h"
michael@0: 
michael@0: #include <string.h>
michael@0: 
michael@0: /*
michael@0:  * A POSIX IPC name must begin with a '/'.
michael@0:  * A POSIX IPC name on Solaris cannot contain any '/' except
michael@0:  * the required leading '/'.
michael@0:  * A POSIX IPC name on HP-UX and OSF1 must be a valid pathname
michael@0:  * in the file system.
michael@0:  *
michael@0:  * The ftok() function for System V IPC requires a valid pathname
michael@0:  * in the file system.
michael@0:  *
michael@0:  * A Win32 IPC name cannot contain '\'.
michael@0:  */
michael@0: 
michael@0: static void _pr_ConvertSemName(char *result)
michael@0: {
michael@0: #ifdef _PR_HAVE_POSIX_SEMAPHORES
michael@0: #if defined(SOLARIS)
michael@0:     char *p;
michael@0: 
michael@0:     /* Convert '/' to '_' except for the leading '/' */
michael@0:     for (p = result+1; *p; p++) {
michael@0:         if (*p == '/') {
michael@0:             *p = '_';
michael@0:         }
michael@0:     }
michael@0:     return;
michael@0: #else
michael@0:     return;
michael@0: #endif
michael@0: #elif defined(_PR_HAVE_SYSV_SEMAPHORES)
michael@0:     return;
michael@0: #elif defined(WIN32)
michael@0:     return;
michael@0: #endif
michael@0: }
michael@0: 
michael@0: static void _pr_ConvertShmName(char *result)
michael@0: {
michael@0: #if defined(PR_HAVE_POSIX_NAMED_SHARED_MEMORY)
michael@0: #if defined(SOLARIS)
michael@0:     char *p;
michael@0: 
michael@0:     /* Convert '/' to '_' except for the leading '/' */
michael@0:     for (p = result+1; *p; p++) {
michael@0:         if (*p == '/') {
michael@0:             *p = '_';
michael@0:         }
michael@0:     }
michael@0:     return;
michael@0: #else
michael@0:     return;
michael@0: #endif
michael@0: #elif defined(PR_HAVE_SYSV_NAMED_SHARED_MEMORY)
michael@0:     return;
michael@0: #elif defined(WIN32)
michael@0:     return;
michael@0: #else
michael@0:     return;
michael@0: #endif
michael@0: }
michael@0: 
michael@0: PRStatus _PR_MakeNativeIPCName(
michael@0:     const char *name,
michael@0:     char *result,
michael@0:     PRIntn size,
michael@0:     _PRIPCType type)
michael@0: {
michael@0:     if (strlen(name) >= (PRSize)size) {
michael@0:         PR_SetError(PR_BUFFER_OVERFLOW_ERROR, 0);
michael@0:         return PR_FAILURE;
michael@0:     }
michael@0:     strcpy(result, name);
michael@0:     switch (type) {
michael@0:         case _PRIPCSem:
michael@0:             _pr_ConvertSemName(result);
michael@0:             break;
michael@0:         case _PRIPCShm:
michael@0:             _pr_ConvertShmName(result);
michael@0:             break;
michael@0:         default:
michael@0:             PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
michael@0:             return PR_FAILURE;
michael@0:     }
michael@0:     return PR_SUCCESS;
michael@0: }