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author | fenner <fenner@FreeBSD.org> | 1998-09-15 19:36:32 +0000 |
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committer | fenner <fenner@FreeBSD.org> | 1998-09-15 19:36:32 +0000 |
commit | cfc42b58f229425374e675f86614cf26ffa356e4 (patch) | |
tree | 6bd786e664682d3877b9cca3efa525ac67d8e005 /contrib/tcpdump/savestr.c | |
parent | a9b9c86c8a0ccde5c1480bf5a0ba250d949a6d65 (diff) | |
download | FreeBSD-src-cfc42b58f229425374e675f86614cf26ffa356e4.zip FreeBSD-src-cfc42b58f229425374e675f86614cf26ffa356e4.tar.gz |
Virgin import of LBL tcpdump v3.4
Diffstat (limited to 'contrib/tcpdump/savestr.c')
-rw-r--r-- | contrib/tcpdump/savestr.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/contrib/tcpdump/savestr.c b/contrib/tcpdump/savestr.c new file mode 100644 index 0000000..2b0c864 --- /dev/null +++ b/contrib/tcpdump/savestr.c @@ -0,0 +1,67 @@ +/* + * Copyright (c) 1997 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that: (1) source code distributions + * retain the above copyright notice and this paragraph in its entirety, (2) + * distributions including binary code include the above copyright notice and + * this paragraph in its entirety in the documentation or other materials + * provided with the distribution, and (3) all advertising materials mentioning + * features or use of this software display the following acknowledgement: + * ``This product includes software developed by the University of California, + * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of + * the University nor the names of its contributors may be used to endorse + * or promote products derived from this software without specific prior + * written permission. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +#ifndef lint +static const char rcsid[] = + "@(#) $Header: savestr.c,v 1.2 97/05/09 14:52:31 leres Exp $ (LBL)"; +#endif + +#include <sys/types.h> + +#ifdef HAVE_MALLOC_H +#include <malloc.h> +#endif +#include <stdio.h> +#include <stdlib.h> + +#include "gnuc.h" +#ifdef HAVE_OS_PROTO_H +#include "os-proto.h" +#endif + +#include "savestr.h" + +/* A replacement for strdup() that cuts down on malloc() overhead */ +char * +savestr(register const char *str) +{ + register u_int size; + register char *p; + static char *strptr = NULL; + static u_int strsize = 0; + + size = strlen(str) + 1; + if (size > strsize) { + strsize = 1024; + if (strsize < size) + strsize = size; + strptr = (char *)malloc(strsize); + if (strptr == NULL) { + fprintf(stderr, "savestr: malloc\n"); + exit(1); + } + } + (void)strcpy(strptr, str); + p = strptr; + strptr += size; + strsize -= size; + return (p); +} |