wsutil/cfutils.c

   1 /* cfutils.c
   2  * Routines to work around deficiencies in Core Foundation, such as the
   3  * lack of a routine to convert a CFString to a C string of arbitrary
   4  * size.
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 2001 Gerald Combs
   9  *
  10  * SPDX-License-Identifier: GPL-2.0-or-later
  11  */
  12
  13 #include "config.h"
  14
  15 #include <glib.h>
  16 #include <CoreFoundation/CoreFoundation.h>
  17 #include <wsutil/cfutils.h>
  18
  19 /*
  20  * Convert a CFString to a UTF-8-encoded C string; the resulting string
  21  * is allocated with g_malloc().  Returns NULL if the conversion fails.
  22  */
  23 char *
  24 CFString_to_C_string(CFStringRef cfstring)
  25 {
  26         CFIndex string_len;
  27         char *string;
  28
  29         string_len = CFStringGetMaximumSizeForEncoding(CFStringGetLength(cfstring),
  30             kCFStringEncodingUTF8);
  31         string = (char *)g_malloc(string_len + 1);
  32         if (!CFStringGetCString(cfstring, string, string_len + 1,
  33             kCFStringEncodingUTF8)) {
  34                 g_free(string);
  35                 return NULL;
  36         }
  37         return string;
  38 }
  39
  40 /*
  41  * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
  42  *
  43  * Local variables:
  44  * c-basic-offset: 8
  45  * tab-width: 8
  46  * indent-tabs-mode: t
  47  * End:
  48  *
  49  * vi: set shiftwidth=8 tabstop=8 noexpandtab:
  50  * :indentSize=8:tabSize=8:noTabs=false:
  51  */