cdrtools/libschily/fjmem.c
2025-06-15 04:19:58 +08:00

125 lines
2.5 KiB
C

/* @(#)fjmem.c 1.14 15/05/10 Copyright 1998-2015 J. Schilling */
#include <schily/mconfig.h>
#ifndef lint
static UConst char sccsid[] =
"@(#)fjmem.c 1.14 15/05/10 Copyright 1998-2015 J. Schilling";
#endif
/*
* Memory handling with error checking
*
* Copyright (c) 1998-2015 J. Schilling
*/
/*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* See the file CDDL.Schily.txt in this distribution for details.
* A copy of the CDDL is also available via the Internet at
* http://www.opensource.org/licenses/cddl1.txt
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file CDDL.Schily.txt from this distribution.
*/
#include <schily/stdio.h>
#include <schily/stdlib.h>
#include <schily/unistd.h>
#include <schily/string.h>
#include <schily/standard.h>
#include <schily/jmpdefs.h>
#include <schily/schily.h>
#include <schily/nlsdefs.h>
EXPORT int __fjmexval __PR((int exval));
EXPORT void *__fjmalloc __PR((FILE *f, size_t size, char *msg, sigjmps_t *jmp));
EXPORT void *__fjrealloc __PR((FILE *f, void *ptr, size_t size, char *msg, sigjmps_t *jmp));
EXPORT char *__fjsavestr __PR((FILE *f, const char *s, sigjmps_t *jmp));
LOCAL int fjmexval;
EXPORT int
__fjmexval(exval)
int exval;
{
int ret = fjmexval;
fjmexval = exval;
return (ret);
}
EXPORT void *
__fjmalloc(f, size, msg, jmp)
FILE *f;
size_t size;
char *msg;
sigjmps_t *jmp;
{
void *ret;
ret = malloc(size);
if (ret == NULL) {
int err = geterrno();
if (f != NULL) {
ferrmsg(f,
gettext("Cannot allocate memory for %s.\n"),
msg);
}
if (fjmexval)
err = fjmexval;
if (jmp == JM_EXIT)
comexit(err);
if (jmp != NULL)
siglongjmp(jmp->jb, 1);
}
return (ret);
}
EXPORT void *
__fjrealloc(f, ptr, size, msg, jmp)
FILE *f;
void *ptr;
size_t size;
char *msg;
sigjmps_t *jmp;
{
void *ret;
if (ptr == NULL)
ret = malloc(size);
else
ret = realloc(ptr, size);
if (ret == NULL) {
int err = geterrno();
if (f != NULL) {
ferrmsg(f,
gettext("Cannot realloc memory for %s.\n"),
msg);
}
if (fjmexval)
err = fjmexval;
if (jmp == JM_EXIT)
comexit(err);
if (jmp != NULL)
siglongjmp(jmp->jb, 1);
}
return (ret);
}
EXPORT char *
__fjsavestr(f, s, jmp)
FILE *f;
const char *s;
sigjmps_t *jmp;
{
char *ret = __fjmalloc(f, strlen(s)+1, "saved string", jmp);
if (ret != NULL)
strcpy(ret, s);
return (ret);
}