The Tor Browser: nsprpub/pr/src/misc/pripc.c@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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/. */

     6 /*

     7  * File: pripc.c

     8  *

     9  * Description: functions for IPC support

    10  */

    12 #include "primpl.h"

    14 #include <string.h>

    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  */

    29 static void _pr_ConvertSemName(char *result)

    30 {

    31 #ifdef _PR_HAVE_POSIX_SEMAPHORES

    32 #if defined(SOLARIS)

    33     char *p;

    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     return;

    47 #elif defined(WIN32)

    48     return;

    49 #endif

    50 }

    52 static void _pr_ConvertShmName(char *result)

    53 {

    54 #if defined(PR_HAVE_POSIX_NAMED_SHARED_MEMORY)

    55 #if defined(SOLARIS)

    56     char *p;

    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     return;

    70 #elif defined(WIN32)

    71     return;

    72 #else

    73     return;

    74 #endif

    75 }

    77 PRStatus _PR_MakeNativeIPCName(

    78     const char *name,

    79     char *result,

    80     PRIntn size,

    81     _PRIPCType type)

    82 {

    83     if (strlen(name) >= (PRSize)size) {

    84         PR_SetError(PR_BUFFER_OVERFLOW_ERROR, 0);

    85         return PR_FAILURE;

    86     }

    87     strcpy(result, name);

    88     switch (type) {

    89         case _PRIPCSem:

    90             _pr_ConvertSemName(result);

    91             break;

    92         case _PRIPCShm:

    93             _pr_ConvertShmName(result);

    94             break;

    95         default:

    96             PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);

    97             return PR_FAILURE;

    98     }

    99     return PR_SUCCESS;

   100 }

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