mirror of
https://github.com/darlinghq/cctools-port.git
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125 lines
2.9 KiB
C
125 lines
2.9 KiB
C
/*
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* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*/
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <mach/mach.h>
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#include "stuff/allocate.h"
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#include "stuff/errors.h"
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/*
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* allocate() is just a wrapper around malloc that prints an error message and
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* exits if the malloc fails.
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*/
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__private_extern__
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void *
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allocate(
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size_t size)
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{
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void *p;
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if(size == 0)
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return(NULL);
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if((p = malloc(size)) == NULL)
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system_fatal("virtual memory exhausted (malloc failed)");
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return(p);
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}
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/*
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* reallocate() is just a wrapper around realloc that prints and error message
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* and exits if the realloc fails.
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*/
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__private_extern__
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void *
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reallocate(
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void *p,
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size_t size)
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{
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if(p == NULL)
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return(allocate(size));
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if((p = realloc(p, size)) == NULL)
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system_fatal("virtual memory exhausted (realloc failed)");
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return(p);
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}
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/*
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* savestr() malloc's space for the string passed to it, copys the string into
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* the space and returns a pointer to that space.
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*/
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__private_extern__
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char *
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savestr(
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const char *s)
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{
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long len;
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char *r;
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len = strlen(s) + 1;
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r = (char *)allocate(len);
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strcpy(r, s);
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return(r);
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}
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/*
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* Makestr() creates a string that is the concatenation of a variable number of
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* strings. It is pass a variable number of pointers to strings and the last
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* pointer is NULL. It returns the pointer to the string it created. The
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* storage for the string is malloc()'ed can be free()'ed when nolonger needed.
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*/
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__private_extern__
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char *
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makestr(
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const char *args,
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...)
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{
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va_list ap;
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char *s, *p;
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long size;
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size = 0;
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if(args != NULL){
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size += strlen(args);
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va_start(ap, args);
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p = (char *)va_arg(ap, char *);
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while(p != NULL){
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size += strlen(p);
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p = (char *)va_arg(ap, char *);
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}
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va_end(ap);
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}
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s = allocate(size + 1);
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*s = '\0';
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if(args != NULL){
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(void)strcat(s, args);
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va_start(ap, args);
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p = (char *)va_arg(ap, char *);
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while(p != NULL){
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(void)strcat(s, p);
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p = (char *)va_arg(ap, char *);
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}
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va_end(ap);
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}
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return(s);
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}
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