genget.c
资源名称:socks5.zip [点击查看]
上传用户:sddyfurun
上传日期:2007-01-04
资源大小:525k
文件大小:3k
源码类别:
代理服务器
开发平台:
Unix_Linux
- /*-
- * Copyright (c) 1991, 1993
- * The 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. 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.
- */
- #ifdef SHOW_SCCSIDS
- static char sccsid[] = "@(#)genget.c 8.2 (Berkeley) 5/30/95";
- #endif
- #include "config.h"
- #ifndef HAVE_GENGET
- #include <ctype.h>
- static char *ambiguous; /* special return value for command routines */
- #define LOWER(x) (isupper(x) ? tolower(x) : (x))
- /* The prefix function returns 0 if *s1 is not a prefix of *s2. If *s1 */
- /* exactly matches *s2, the negative of the length is returned. If *s1 is a */
- /* prefix of *s2, the length of *s1 is returned. */
- int isprefix(register char *s1, register char *s2) {
- register char c1, c2;
- char *os1;
- if (*s1 == ' ') return(-1);
- os1 = s1;
- c1 = *s1;
- c2 = *s2;
- while (LOWER(c1) == LOWER(c2)) {
- if (c1 == ' ') break;
- c1 = *++s1;
- c2 = *++s2;
- }
- return(*s1 ? 0 : (*s2 ? (s1 - os1) : (os1 - s1)));
- }
- char **genget(char *name, char ** table, int stlen) {
- register char **c, **found;
- register int n;
- if (name == 0) return 0;
- found = 0;
- for (c = table; *c != 0; c = (char **)((char *)c + stlen)) {
- if ((n = isprefix(name, *c)) == 0) continue;
- if (n < 0) return(c);
- if (found) return(&ambiguous);
- found = c;
- }
- return(found);
- }
- /* Function call version of Ambiguous() */
- int Ambiguous(char *s) {
- return((char **)s == &ambiguous);
- }
- #endif