# 2.11BSD#431 - /usr/src/lib/libc/string/strtok.c

##### Functions

    strtok            X

       1: /*
       2:  * Copyright (c) 1988, 1993
       3:  *	The Regents of the University of California.  All rights reserved.
       4:  *
       5:  * Redistribution and use in source and binary forms, with or without
       6:  * modification, are permitted provided that the following conditions
       7:  * are met:
       8:  * 1. Redistributions of source code must retain the above copyright
       9:  *    notice, this list of conditions and the following disclaimer.
      10:  * 2. Redistributions in binary form must reproduce the above copyright
      11:  *    notice, this list of conditions and the following disclaimer in the
      12:  *    documentation and/or other materials provided with the distribution.
      13:  * 3. All advertising materials mentioning features or use of this software
      14:  *    must display the following acknowledgement:
      15:  *	This product includes software developed by the University of
      16:  *	California, Berkeley and its contributors.
      17:  * 4. Neither the name of the University nor the names of its contributors
      18:  *    may be used to endorse or promote products derived from this software
      19:  *    without specific prior written permission.
      20:  *
      21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
      22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
      25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      31:  * SUCH DAMAGE.
      32:  */
      33:
      34: #if defined(LIBC_SCCS) && !defined(lint)
      35: static char sccsid[] = "@(#)strtok.c	8.1.1 (2.11BSD) 1996/1/11";
      36: #endif /* LIBC_SCCS and not lint */
      37:
      38: #include <string.h>
      39: #include <stdio.h>
      40:
      41: char *
      42: strtok(s, delim)
      43:     register char *s;
      44:     register char *delim;
      45: {
      46:     register char *spanp;
      47:     int c, sc;
      48:     char *tok;
      49:     static char *last;
      50:
      51:
      52:     if (s == NULL && (s = last) == NULL)
      53:         return (NULL);
      54:
      55:     /*
      56: 	 * Skip (span) leading delimiters (s += strspn(s, delim), sort of).
      57: 	 */
      58: cont:
      59:     c = *s++;
      60:     for (spanp = (char *)delim; (sc = *spanp++) != 0;) {
      61:         if (c == sc)
      62:             goto cont;
      63:     }
      64:
      65:     if (c == 0) {       /* no non-delimiter characters */
      66:         last = NULL;
      67:         return (NULL);
      68:     }
      69:     tok = s - 1;
      70:
      71:     /*
      72: 	 * Scan token (scan for delimiters: s += strcspn(s, delim), sort of).
      73: 	 * Note that delim must have one NUL; we stop if we see that, too.
      74: 	 */
      75:     for (;;) {
      76:         c = *s++;
      77:         spanp = (char *)delim;
      78:         do {
      79:             if ((sc = *spanp++) == c) {
      80:                 if (c == 0)
      81:                     s = NULL;
      82:                 else
      83:                     s[-1] = 0;
      84:                 last = s;
      85:                 return (tok);
      86:             }
      87:         } while (sc != 0);
      88:     }
      89:     /* NOTREACHED */
      90: }

#### Defined functions

strtok defined in line 41; used 52 times

- in /usr/include/string.h line 21
- in /usr/src/bin/chpass/util.c line 72, 82-85(2)
- in /usr/src/include/string.h line 29
- in /usr/src/include/strings.h line 26
- in /usr/src/lib/libc/gen/fstab.c line 94-111(8)
- in /usr/src/libexec/fingerd/fingerd.c line 110
- in /usr/src/libexec/ftpd/popen.c line 66
- in /usr/src/libexec/tcpd/hosts_access.c line 190-194(3)
- in /usr/src/libexec/tcpd/inetcf.c line 106-118(6), 129-132(2), 143-148(2)
- in /usr/src/libexec/tcpd/tcpdchk.c line 265-267(2), 286(2), 314(2)
- in /usr/src/sbin/mount/getmntopts.c line 63
- in /usr/src/sbin/quotacheck/quotacheck.c line 394(2)
- in /usr/src/ucb/finger/util.c line 108, 117
- in /usr/src/ucb/quota.c line 317(2)
- in /usr/src/usr.sbin/cron/popen.c line 75
- in /usr/src/usr.sbin/edquota/edquota.c line 409-413(2), 426, 518(2)
- in /usr/src/usr.sbin/quotaon/quotaon.c line 192(2)
- in /usr/src/usr.sbin/repquota/repquota.c line 250(2)

#### Defined variables

sccsid defined in line 35; never used

Last modified: 1996-01-12 Generated: 2016-12-26 | Generated by src2html V0.67 page hit count: 2244 |