1 /* 2 * Copyright (c) 1985 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 */ 17 18 #if defined(LIBC_SCCS) && !defined(lint) 19 static char sccsid[] = "@(#)strpbrk.c 5.6 (Berkeley) 05/17/90"; 20 #endif /* LIBC_SCCS and not lint */ 21 22 #include <string.h> 23 #include <sys/stdc.h> 24 25 /* 26 * Find the first occurrence in s1 of a character in s2 (excluding NUL). 27 */ 28 char * 29 strpbrk(s1, s2) 30 register const char *s1, *s2; 31 { 32 register const char *scanp; 33 register int c, sc; 34 35 while ((c = *s1++) != 0) { 36 for (scanp = s2; (sc = *scanp++) != 0;) 37 if (sc == c) 38 return ((char *)(s1 - 1)); 39 } 40 return (NULL); 41 } 42