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83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/*
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* Generic "support" routines to replace those obtained from libiberty for ld.
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*
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* I've collected these from random bits of (published) code I've written
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* over the years, not that they are a big deal. peter@freebsd.org
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*-
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* Copyright (C) 1996
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* Peter Wemm. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*-
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <string.h>
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#include <stdlib.h>
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#include <err.h>
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#include "support.h"
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char *
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concat(const char *s1, const char *s2, const char *s3)
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{
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int len = 1;
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char *s;
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if (s1)
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len += strlen(s1);
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if (s2)
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len += strlen(s2);
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if (s3)
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len += strlen(s3);
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s = xmalloc(len);
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s[0] = '\0';
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if (s1)
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strcat(s, s1);
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if (s2)
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strcat(s, s2);
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if (s3)
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strcat(s, s3);
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return s;
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}
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void *
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xmalloc(size_t n)
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{
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char *p = malloc(n);
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if (p == NULL)
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errx(1, "Could not allocate memory");
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return p;
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}
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void *
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xrealloc(void *p, size_t n)
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{
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p = realloc(p, n);
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if (p == NULL)
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errx(1, "Could not allocate memory");
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return p;
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}
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