The Tor Browser: security/nss/lib/jar/jarint.c@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 /*

     6  * Internal libjar routines.

     7  */

     9 #include "jar.h"

    10 #include "jarint.h"

    12 /*-----------------------------------------------------------------------

    13  * JAR_FOPEN_to_PR_Open

    14  * Translate JAR_FOPEN arguments to PR_Open arguments

    15  */

    16 PRFileDesc*

    17 JAR_FOPEN_to_PR_Open(const char* name, const char *mode)

    18 {

    20     PRIntn  prflags=0, prmode=0;

    22     /* Get read/write flags */

    23     if (strchr(mode, 'r') && !strchr(mode, '+')) {

    24 	prflags |= PR_RDONLY;

    25     } else if( (strchr(mode, 'w') || strchr(mode, 'a')) &&

    26 	!strchr(mode,'+') ) {

    27 	prflags |= PR_WRONLY;

    28     } else {

    29 	prflags |= PR_RDWR;

    30     }

    32     /* Create a new file? */

    33     if (strchr(mode, 'w') || strchr(mode, 'a')) {

    34 	prflags |= PR_CREATE_FILE;

    35     }

    37     /* Append? */

    38     if (strchr(mode, 'a')) {

    39 	prflags |= PR_APPEND;

    40     }

    42     /* Truncate? */

    43     if (strchr(mode, 'w')) {

    44 	prflags |= PR_TRUNCATE;

    45     }

    47     /* We can't do umask because it isn't XP.  Choose some default

    48 	   mode for created files */

    49     prmode = 0755;

    51     return PR_Open(name, prflags, prmode);

    52 }

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