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util.c
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C/C++ Source or Header
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1990-12-14
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/* Copyright (c) 1988 by Sozobon, Limited. Author: Tony Andrews
*
* Permission is granted to anyone to use this software for any purpose
* on any computer system, and to redistribute it freely, with the
* following restrictions:
* 1) No charge may be made other than reasonable charges for reproduction.
* 2) Modified versions must be clearly marked as such.
* 3) The authors are not responsible for any harmful consequences
* of using this software, even if they result from defects in it.
*/
#include <stdio.h>
/*
* strsave(s) - copy s to dynamically allocated space
*/
char *
strsave(s)
register char *s;
{
char *malloc(), *strcpy();
return strcpy(malloc((unsigned) (strlen(s) + 1)), s);
}
/*
* alloc() - malloc with error checking
*/
char *
alloc(n)
int n;
{
extern char *malloc();
char *p;
if ((p = malloc(n)) == NULL) {
fprintf(stderr, "top: out of memory\n");
exit(1);
}
return p;
}
#ifdef MINIX
remove(f)
char *f;
{
unlink(f);
}
rename(f1, f2)
char *f1, *f2;
{
unlink(f2);
link(f1, f2);
unlink(f1);
}
#endif