Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : /*
       7             :  * File: pripc.c
       8             :  *
       9             :  * Description: functions for IPC support
      10             :  */
      11             : 
      12             : #include "primpl.h"
      13             : 
      14             : #include <string.h>
      15             : 
      16             : /*
      17             :  * A POSIX IPC name must begin with a '/'.
      18             :  * A POSIX IPC name on Solaris cannot contain any '/' except
      19             :  * the required leading '/'.
      20             :  * A POSIX IPC name on HP-UX and OSF1 must be a valid pathname
      21             :  * in the file system.
      22             :  *
      23             :  * The ftok() function for System V IPC requires a valid pathname
      24             :  * in the file system.
      25             :  *
      26             :  * A Win32 IPC name cannot contain '\'.
      27             :  */
      28             : 
      29           0 : static void _pr_ConvertSemName(char *result)
      30             : {
      31             : #ifdef _PR_HAVE_POSIX_SEMAPHORES
      32             : #if defined(SOLARIS)
      33             :     char *p;
      34             : 
      35             :     /* Convert '/' to '_' except for the leading '/' */
      36             :     for (p = result+1; *p; p++) {
      37             :         if (*p == '/') {
      38             :             *p = '_';
      39             :         }
      40             :     }
      41             :     return;
      42             : #else
      43             :     return;
      44             : #endif
      45             : #elif defined(_PR_HAVE_SYSV_SEMAPHORES)
      46           0 :     return;
      47             : #elif defined(WIN32)
      48             :     return;
      49             : #endif
      50             : }
      51             : 
      52           0 : static void _pr_ConvertShmName(char *result)
      53             : {
      54             : #if defined(PR_HAVE_POSIX_NAMED_SHARED_MEMORY)
      55             : #if defined(SOLARIS)
      56             :     char *p;
      57             : 
      58             :     /* Convert '/' to '_' except for the leading '/' */
      59             :     for (p = result+1; *p; p++) {
      60             :         if (*p == '/') {
      61             :             *p = '_';
      62             :         }
      63             :     }
      64             :     return;
      65             : #else
      66             :     return;
      67             : #endif
      68             : #elif defined(PR_HAVE_SYSV_NAMED_SHARED_MEMORY)
      69           0 :     return;
      70             : #elif defined(WIN32)
      71             :     return;
      72             : #else
      73             :     return;
      74             : #endif
      75             : }
      76             : 
      77           0 : PRStatus _PR_MakeNativeIPCName(
      78             :     const char *name,
      79             :     char *result,
      80             :     PRIntn size,
      81             :     _PRIPCType type)
      82             : {
      83           0 :     if (strlen(name) >= (PRSize)size) {
      84           0 :         PR_SetError(PR_BUFFER_OVERFLOW_ERROR, 0);
      85           0 :         return PR_FAILURE;
      86             :     }
      87           0 :     strcpy(result, name);
      88           0 :     switch (type) {
      89             :         case _PRIPCSem:
      90           0 :             _pr_ConvertSemName(result);
      91           0 :             break;
      92             :         case _PRIPCShm:
      93           0 :             _pr_ConvertShmName(result);
      94           0 :             break;
      95             :         default:
      96           0 :             PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
      97           0 :             return PR_FAILURE;
      98             :     }
      99           0 :     return PR_SUCCESS;
     100             : }