mirror of
https://github.com/RetroDECK/ES-DE.git
synced 2025-04-10 19:15:13 +00:00
151 lines
2.8 KiB
Plaintext
151 lines
2.8 KiB
Plaintext
/*
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* Copyright (C) the libgit2 contributors. All rights reserved.
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*
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* This file is part of libgit2, distributed under the GNU GPL v2 with
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* a Linking Exception. For full terms see the included COPYING file.
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*/
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#include "stdalloc.h"
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static void *stdalloc__malloc(size_t len, const char *file, int line)
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{
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void *ptr;
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GIT_UNUSED(file);
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GIT_UNUSED(line);
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#ifdef GIT_DEBUG_STRICT_ALLOC
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if (!len)
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return NULL;
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#endif
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ptr = malloc(len);
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if (!ptr)
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git_error_set_oom();
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return ptr;
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}
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static void *stdalloc__calloc(size_t nelem, size_t elsize, const char *file, int line)
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{
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void *ptr;
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GIT_UNUSED(file);
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GIT_UNUSED(line);
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#ifdef GIT_DEBUG_STRICT_ALLOC
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if (!elsize || !nelem)
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return NULL;
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#endif
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ptr = calloc(nelem, elsize);
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if (!ptr)
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git_error_set_oom();
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return ptr;
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}
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static char *stdalloc__strdup(const char *str, const char *file, int line)
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{
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char *ptr;
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GIT_UNUSED(file);
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GIT_UNUSED(line);
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ptr = strdup(str);
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if (!ptr)
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git_error_set_oom();
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return ptr;
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}
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static char *stdalloc__strndup(const char *str, size_t n, const char *file, int line)
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{
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size_t length = 0, alloclength;
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char *ptr;
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length = p_strnlen(str, n);
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if (GIT_ADD_SIZET_OVERFLOW(&alloclength, length, 1) ||
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!(ptr = stdalloc__malloc(alloclength, file, line)))
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return NULL;
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if (length)
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memcpy(ptr, str, length);
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ptr[length] = '\0';
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return ptr;
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}
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static char *stdalloc__substrdup(const char *start, size_t n, const char *file, int line)
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{
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char *ptr;
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size_t alloclen;
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if (GIT_ADD_SIZET_OVERFLOW(&alloclen, n, 1) ||
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!(ptr = stdalloc__malloc(alloclen, file, line)))
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return NULL;
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memcpy(ptr, start, n);
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ptr[n] = '\0';
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return ptr;
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}
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static void *stdalloc__realloc(void *ptr, size_t size, const char *file, int line)
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{
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void *new_ptr;
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GIT_UNUSED(file);
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GIT_UNUSED(line);
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#ifdef GIT_DEBUG_STRICT_ALLOC
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if (!size)
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return NULL;
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#endif
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new_ptr = realloc(ptr, size);
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if (!new_ptr)
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git_error_set_oom();
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return new_ptr;
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}
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static void *stdalloc__reallocarray(void *ptr, size_t nelem, size_t elsize, const char *file, int line)
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{
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size_t newsize;
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if (GIT_MULTIPLY_SIZET_OVERFLOW(&newsize, nelem, elsize))
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return NULL;
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return stdalloc__realloc(ptr, newsize, file, line);
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}
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static void *stdalloc__mallocarray(size_t nelem, size_t elsize, const char *file, int line)
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{
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return stdalloc__reallocarray(NULL, nelem, elsize, file, line);
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}
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static void stdalloc__free(void *ptr)
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{
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free(ptr);
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}
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int git_stdalloc_init_allocator(git_allocator *allocator)
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{
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allocator->gmalloc = stdalloc__malloc;
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allocator->gcalloc = stdalloc__calloc;
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allocator->gstrdup = stdalloc__strdup;
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allocator->gstrndup = stdalloc__strndup;
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allocator->gsubstrdup = stdalloc__substrdup;
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allocator->grealloc = stdalloc__realloc;
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allocator->greallocarray = stdalloc__reallocarray;
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allocator->gmallocarray = stdalloc__mallocarray;
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allocator->gfree = stdalloc__free;
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return 0;
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}
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