xref: /original-bsd/lib/libc/string/strdup.c (revision c8089215)
1 /*
2  * Copyright (c) 1988 The Regents of the University of California.
3  * All rights reserved.
4  *
5  * %sccs.include.redist.c%
6  */
7 
8 #if defined(LIBC_SCCS) && !defined(lint)
9 static char sccsid[] = "@(#)strdup.c	5.4 (Berkeley) 02/24/91";
10 #endif /* LIBC_SCCS and not lint */
11 
12 #include <stddef.h>
13 #include <stdlib.h>
14 #include <string.h>
15 
16 char *
17 strdup(str)
18 	const char *str;
19 {
20 	int len;
21 	char *copy;
22 
23 	len = strlen(str) + 1;
24 	if (!(copy = malloc((u_int)len)))
25 		return((char *)NULL);
26 	bcopy(str, copy, len);
27 	return(copy);
28 }
29