1 /* xmalloc.c -- safe versions of malloc and realloc */
3 /* Copyright (C) 1991 Free Software Foundation, Inc.
5 This file is part of GNU Readline, a library for reading lines
6 of text with interactive input and history editing.
8 Readline is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any
13 Readline is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with Readline; see the file COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
22 #if defined (HAVE_CONFIG_H)
26 #include "bashtypes.h"
29 #if defined (HAVE_UNISTD_H)
33 #if defined (HAVE_STDLIB_H)
36 # include "ansi_stdlib.h"
37 #endif /* HAVE_STDLIB_H */
44 # if defined (__STDC__)
48 # endif /* !__STDC__ */
51 #if defined (HAVE_SBRK) && !HAVE_DECL_SBRK
57 static size_t allocated;
59 /* **************************************************************** */
61 /* Memory Allocation and Deallocation. */
63 /* **************************************************************** */
65 #if defined (HAVE_SBRK)
71 lbreak = (PTR_T)sbrk (0);
74 return (char *)sbrk (0) - (char *)lbreak;
78 /* Return a pointer to free()able block of memory large enough
79 to hold BYTES number of bytes. If the memory cannot be allocated,
80 print an error message and abort. */
87 temp = malloc (bytes);
91 #if defined (HAVE_SBRK)
92 allocated = findbrk ();
93 fatal_error (_("xmalloc: cannot allocate %lu bytes (%lu bytes allocated)"), (unsigned long)bytes, (unsigned long)allocated);
95 fatal_error (_("xmalloc: cannot allocate %lu bytes"), (unsigned long)bytes);
96 #endif /* !HAVE_SBRK */
103 xrealloc (pointer, bytes)
109 temp = pointer ? realloc (pointer, bytes) : malloc (bytes);
113 #if defined (HAVE_SBRK)
114 allocated = findbrk ();
115 fatal_error (_("xrealloc: cannot reallocate %lu bytes (%lu bytes allocated)"), (unsigned long)bytes, (unsigned long)allocated);
117 fatal_error (_("xrealloc: cannot allocate %lu bytes"), (unsigned long)bytes);
118 #endif /* !HAVE_SBRK */
124 /* Use this as the function to call when adding unwind protects so we
125 don't need to know what free() returns. */
134 #ifdef USING_BASH_MALLOC
135 #include <malloc/shmalloc.h>
138 sh_xmalloc (bytes, file, line)
145 temp = sh_malloc (bytes, file, line);
149 #if defined (HAVE_SBRK)
150 allocated = findbrk ();
151 fatal_error (_("xmalloc: %s:%d: cannot allocate %lu bytes (%lu bytes allocated)"), file, line, (unsigned long)bytes, (unsigned long)allocated);
153 fatal_error (_("xmalloc: %s:%d: cannot allocate %lu bytes"), file, line, (unsigned long)bytes);
154 #endif /* !HAVE_SBRK */
161 sh_xrealloc (pointer, bytes, file, line)
169 temp = pointer ? sh_realloc (pointer, bytes, file, line) : sh_malloc (bytes, file, line);
173 #if defined (HAVE_SBRK)
174 allocated = findbrk ();
175 fatal_error (_("xrealloc: %s:%d: cannot reallocate %lu bytes (%lu bytes allocated)"), file, line, (unsigned long)bytes, (unsigned long)allocated);
177 fatal_error (_("xrealloc: %s:%d: cannot allocate %lu bytes"), file, line, (unsigned long)bytes);
178 #endif /* !HAVE_SBRK */
185 sh_xfree (string, file, line)
191 sh_free (string, file, line);