strdup.c revision 82498 
1
2#define NULL 0
3
4char *
5strdup(
6	const char *s
7	)
8{
9        char *cp;
10
11        if (s) {
12                cp = (char *) malloc((unsigned) (strlen(s)+1));
13                if (cp) {
14                        (void) strcpy(cp, s);
15		}
16        } else {
17                cp = (char *) NULL;
18	}
19        return(cp);
20}
21