98b79d1ef1
This can disclose information from the stack, but is unlikely to have a security impact in the context of the procps utilities: user@debian:~$ w 2>&1 | xxd 00000000: a03c 79b7 1420 6661 696c 6564 2074 6f20 .<y.. failed to 00000010: 616c 6c6f 6361 7465 2033 3232 3137 3439 allocate 3221749 00000020: 3738 3020 6279 7465 7320 6f66 206d 656d 780 bytes of mem 00000030: 6f72 79 ory
93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
/*
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* alloc.c - memory allocation functions
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* Copyright (C) 1992-1998 by Michael K. Johnson, johnsonm@redhat.com
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* Copyright 2002 Albert Cahalan
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "alloc.h"
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static void xdefault_error(const char *restrict fmts, ...) __attribute__((format(printf,1,2)));
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static void xdefault_error(const char *restrict fmts, ...) {
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va_list va;
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va_start(va, fmts);
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vfprintf(stderr, fmts, va);
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va_end(va);
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}
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message_fn xalloc_err_handler = xdefault_error;
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void *xcalloc(unsigned int size) {
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void * p;
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if (size == 0)
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++size;
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p = calloc(1, size);
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if (!p) {
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xalloc_err_handler("%s failed to allocate %u bytes of memory", __func__, size);
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exit(EXIT_FAILURE);
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}
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return p;
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}
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void *xmalloc(size_t size) {
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void *p;
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if (size == 0)
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++size;
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p = malloc(size);
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if (!p) {
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xalloc_err_handler("%s failed to allocate %zu bytes of memory", __func__, size);
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exit(EXIT_FAILURE);
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}
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return(p);
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}
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void *xrealloc(void *oldp, unsigned int size) {
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void *p;
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if (size == 0)
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++size;
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p = realloc(oldp, size);
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if (!p) {
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xalloc_err_handler("%s failed to allocate %u bytes of memory", __func__, size);
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exit(EXIT_FAILURE);
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}
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return(p);
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}
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char *xstrdup(const char *str) {
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char *p = NULL;
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if (str) {
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unsigned int size = strlen(str) + 1;
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p = malloc(size);
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if (!p) {
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xalloc_err_handler("%s failed to allocate %u bytes of memory", __func__, size);
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exit(EXIT_FAILURE);
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}
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strcpy(p, str);
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}
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return(p);
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}
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