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Annotation of src/usr.bin/ssh/misc.c, Revision 1.1.2.1

1.1.2.1 ! jason       1: /*     $OpenBSD: misc.c,v 1.1 2001/01/21 19:05:52 markus Exp $ */
1.1       markus      2:
                      3: /*
                      4:  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
                      5:  *
                      6:  * Redistribution and use in source and binary forms, with or without
                      7:  * modification, are permitted provided that the following conditions
                      8:  * are met:
                      9:  * 1. Redistributions of source code must retain the above copyright
                     10:  *    notice, this list of conditions and the following disclaimer.
                     11:  * 2. Redistributions in binary form must reproduce the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer in the
                     13:  *    documentation and/or other materials provided with the distribution.
                     14:  *
                     15:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     16:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     17:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     18:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     19:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     20:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     21:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     22:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     23:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     24:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     25:  */
                     26:
                     27: #include "includes.h"
1.1.2.1 ! jason      28: RCSID("$OpenBSD: misc.c,v 1.1 2001/01/21 19:05:52 markus Exp $");
1.1       markus     29:
                     30: #include "misc.h"
                     31: #include "log.h"
                     32:
                     33: char *
                     34: chop(char *s)
                     35: {
                     36:        char *t = s;
                     37:        while (*t) {
                     38:                if(*t == '\n' || *t == '\r') {
                     39:                        *t = '\0';
                     40:                        return s;
                     41:                }
                     42:                t++;
                     43:        }
                     44:        return s;
                     45:
                     46: }
                     47:
                     48: void
                     49: set_nonblock(int fd)
                     50: {
                     51:        int val;
                     52:        val = fcntl(fd, F_GETFL, 0);
                     53:        if (val < 0) {
                     54:                error("fcntl(%d, F_GETFL, 0): %s", fd, strerror(errno));
                     55:                return;
                     56:        }
                     57:        if (val & O_NONBLOCK) {
                     58:                debug("fd %d IS O_NONBLOCK", fd);
                     59:                return;
                     60:        }
                     61:        debug("fd %d setting O_NONBLOCK", fd);
                     62:        val |= O_NONBLOCK;
                     63:        if (fcntl(fd, F_SETFL, val) == -1)
                     64:                if (errno != ENODEV)
                     65:                        error("fcntl(%d, F_SETFL, O_NONBLOCK): %s",
                     66:                            fd, strerror(errno));
                     67: }
                     68:
                     69: /* Characters considered whitespace in strsep calls. */
                     70: #define WHITESPACE " \t\r\n"
                     71:
                     72: char *
                     73: strdelim(char **s)
                     74: {
                     75:        char *old;
                     76:        int wspace = 0;
                     77:
                     78:        if (*s == NULL)
                     79:                return NULL;
                     80:
                     81:        old = *s;
                     82:
                     83:        *s = strpbrk(*s, WHITESPACE "=");
                     84:        if (*s == NULL)
                     85:                return (old);
                     86:
                     87:        /* Allow only one '=' to be skipped */
                     88:        if (*s[0] == '=')
                     89:                wspace = 1;
                     90:        *s[0] = '\0';
                     91:
                     92:        *s += strspn(*s + 1, WHITESPACE) + 1;
                     93:        if (*s[0] == '=' && !wspace)
                     94:                *s += strspn(*s + 1, WHITESPACE) + 1;
                     95:
                     96:        return (old);
                     97: }