92 lines
1.7 KiB
C
92 lines
1.7 KiB
C
/* xalloc.c - stricter memory allocation.
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*
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* Copyright (C) 2010 Henrik Hautakoski <henrik@fiktivkod.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <string.h>
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#include <errno.h>
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#include "error.h"
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#include "xalloc.h"
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#ifdef __DEBUG__
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# define CHECK_INPUT(s, prefix) \
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if (!(s)) \
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fatal(prefix ": Invalid argument '%s'\n", #s)
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#else
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# define CHECK_INPUT(s, prefix)
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#endif
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void* xmalloc(size_t size) {
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void *ptr;
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CHECK_INPUT(size, "xmalloc");
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ptr = malloc(size);
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if (!ptr)
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fatal("xmalloc: %s, tried to allocate %lu bytes",
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strerror(errno), (unsigned long) size);
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return ptr;
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}
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void* xmallocz(size_t size) {
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void *ptr;
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CHECK_INPUT(size, "xmallocz");
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ptr = malloc(size);
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if (!ptr)
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fatal("xmallocz: %s", strerror(errno));
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memset(ptr, 0, size);
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return ptr;
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}
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void* xrealloc(void *ptr, size_t size) {
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void *new;
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CHECK_INPUT(size, "xrealloc");
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new = realloc(ptr, size);
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if (!new)
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fatal("xrealloc: Can't resize memory block (%s) on '%p' with size '%lu'",
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strerror(errno), ptr, (unsigned long) size);
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return new;
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}
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char* xstrdup(const char *s) {
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size_t len;
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char *dest;
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CHECK_INPUT(s, "xstrdup");
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len = strlen(s) + 1;
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dest = xmalloc(len);
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memcpy(dest, s, len);
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return dest;
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}
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void* xmemdup(const void *src, size_t size) {
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void *dest;
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CHECK_INPUT(src, "xmemdup");
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dest = xmalloc(size);
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memcpy(dest, src, size);
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return dest;
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}
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#ifdef __DEBUG__
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void xfree(void *ptr) {
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CHECK_INPUT(ptr, "xfree");
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free(ptr);
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}
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#endif /* __DEBUG__ */
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