161 lines
2.8 KiB
C
161 lines
2.8 KiB
C
/*
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* xfuncs.c - safe malloc funcions
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*
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* based on busybox
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*
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* Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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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 version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <common.h>
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#include <malloc.h>
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#include <module.h>
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#include <wchar.h>
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void *xmalloc(size_t size)
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{
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void *p = NULL;
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if (!(p = malloc(size)))
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panic("ERROR: out of memory\n");
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return p;
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}
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EXPORT_SYMBOL(xmalloc);
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void *xrealloc(void *ptr, size_t size)
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{
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void *p = NULL;
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if (!(p = realloc(ptr, size)))
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panic("ERROR: out of memory\n");
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return p;
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}
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EXPORT_SYMBOL(xrealloc);
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void *xzalloc(size_t size)
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{
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void *ptr = xmalloc(size);
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memset(ptr, 0, size);
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return ptr;
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}
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EXPORT_SYMBOL(xzalloc);
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char *xstrdup(const char *s)
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{
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char *p = strdup(s);
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if (!p)
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panic("ERROR: out of memory\n");
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return p;
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}
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EXPORT_SYMBOL(xstrdup);
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char *xstrndup(const char *s, size_t n)
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{
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int m;
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char *t;
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/* We can just xmalloc(n+1) and strncpy into it, */
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/* but think about xstrndup("abc", 10000) wastage! */
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m = n;
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t = (char*) s;
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while (m) {
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if (!*t) break;
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m--;
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t++;
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}
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n -= m;
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t = xmalloc(n + 1);
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t[n] = '\0';
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return memcpy(t, s, n);
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}
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EXPORT_SYMBOL(xstrndup);
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void* xmemalign(size_t alignment, size_t bytes)
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{
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void *p = memalign(alignment, bytes);
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if (!p)
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panic("ERROR: out of memory\n");
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return p;
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}
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EXPORT_SYMBOL(xmemalign);
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void *xmemdup(const void *orig, size_t size)
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{
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void *buf = xmalloc(size);
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memcpy(buf, orig, size);
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return buf;
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}
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EXPORT_SYMBOL(xmemdup);
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char *xvasprintf(const char *fmt, va_list ap)
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{
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char *p;
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p = vasprintf(fmt, ap);
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if (!p)
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panic("ERROR: out of memory\n");
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return p;
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}
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EXPORT_SYMBOL(xvasprintf);
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char *xasprintf(const char *fmt, ...)
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{
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va_list ap;
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char *p;
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va_start(ap, fmt);
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p = xvasprintf(fmt, ap);
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va_end(ap);
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return p;
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}
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EXPORT_SYMBOL(xasprintf);
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wchar_t *xstrdup_wchar(const wchar_t *s)
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{
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wchar_t *p = strdup_wchar(s);
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if (!p)
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panic("ERROR: out of memory\n");
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return p;
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}
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EXPORT_SYMBOL(xstrdup_wchar);
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wchar_t *xstrdup_char_to_wchar(const char *s)
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{
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wchar_t *p = strdup_char_to_wchar(s);
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if (!p)
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panic("ERROR: out of memory\n");
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return p;
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}
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EXPORT_SYMBOL(xstrdup_char_to_wchar);
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char *xstrdup_wchar_to_char(const wchar_t *s)
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{
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char *p = strdup_wchar_to_char(s);
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if (!p)
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panic("ERROR: out of memory\n");
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return p;
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}
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EXPORT_SYMBOL(xstrdup_wchar_to_char);
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