54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/*
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Copyright (c) 2010 Samuel Lidén Borell <samuel@kodafritt.se>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <glib.h>
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#include <stdlib.h>
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#include <string.h>
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#include "misc.h"
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void secure_erase(void *ptr, size_t size) {
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// "volatile" prevents this code from being optimized away
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volatile char* volptr = ptr;
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while (size--) *volptr++ = 0;
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}
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/**
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* Re-allocates a string with the native allocator.
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*/
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char *import_glib_string(gchar *gstr) {
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size_t size;
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char *native;
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if (g_mem_is_system_malloc()) return gstr;
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size = strlen(gstr)+1;
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native = malloc(size);
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memcpy(native, gstr, size);
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secure_erase(gstr, size);
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g_free(gstr);
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return native;
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}
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