diff options
Diffstat (limited to 'snmplib/strtok_r.c')
-rw-r--r-- | snmplib/strtok_r.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/snmplib/strtok_r.c b/snmplib/strtok_r.c new file mode 100644 index 0000000..21d47d6 --- /dev/null +++ b/snmplib/strtok_r.c @@ -0,0 +1,94 @@ + +/* $NetBSD: strtok_r.c,v 1.9 2003/08/07 16:43:53 agc Exp $ */ + +/* + * Copyright (c) 1988 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 the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +#include <net-snmp/net-snmp-config.h> + +#ifndef WIN32 +#include <sys/cdefs.h> +#endif + +#include <string.h> + +#include <net-snmp/library/system.h> + +/* + * thread-safe version of strtok + */ +char * +strtok_r(char *s, const char *delim, char **lasts) +{ + const char *spanp; + int c, sc; + char *tok; + + /* s may be NULL */ + /*netsnmp_assert(delim != NULL);*/ + /*netsnmp_assert(lasts != NULL);*/ + + if (s == NULL && (s = *lasts) == NULL) + return (NULL); + + /* + * Skip (span) leading delimiters (s += strspn(s, delim), sort of). + */ +cont: + c = *s++; + for (spanp = delim; (sc = *spanp++) != 0;) { + if (c == sc) + goto cont; + } + + if (c == 0) { /* no non-delimiter characters */ + *lasts = NULL; + return (NULL); + } + tok = s - 1; + + /* + * Scan token (scan for delimiters: s += strcspn(s, delim), sort of). + * Note that delim must have one NUL; we stop if we see that, too. + */ + for (;;) { + c = *s++; + spanp = delim; + do { + if ((sc = *spanp++) == c) { + if (c == 0) + s = NULL; + else + s[-1] = 0; + *lasts = s; + return (tok); + } + } while (sc != 0); + } + /* NOTREACHED */ +} |