Annotation of src/usr.bin/ssh/util.c, Revision 1.4.2.2
1.4.2.2 ! jason 1: /* $OpenBSD: util.c,v 1.6 2000/10/27 07:32:19 markus Exp $ */
! 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:
1.1 provos 27: #include "includes.h"
1.4.2.2 ! jason 28: RCSID("$OpenBSD: util.c,v 1.6 2000/10/27 07:32:19 markus Exp $");
1.1 provos 29:
30: #include "ssh.h"
31:
32: char *
33: chop(char *s)
34: {
35: char *t = s;
36: while (*t) {
37: if(*t == '\n' || *t == '\r') {
38: *t = '\0';
39: return s;
40: }
41: t++;
42: }
43: return s;
44:
45: }
46:
47: void
48: set_nonblock(int fd)
49: {
50: int val;
51: val = fcntl(fd, F_GETFL, 0);
52: if (val < 0) {
53: error("fcntl(%d, F_GETFL, 0): %s", fd, strerror(errno));
54: return;
55: }
1.4.2.2 ! jason 56: if (val & O_NONBLOCK) {
! 57: debug("fd %d IS O_NONBLOCK", fd);
1.1 provos 58: return;
1.4.2.2 ! jason 59: }
1.1 provos 60: debug("fd %d setting O_NONBLOCK", fd);
61: val |= O_NONBLOCK;
62: if (fcntl(fd, F_SETFL, val) == -1)
1.4 markus 63: if (errno != ENODEV)
64: error("fcntl(%d, F_SETFL, O_NONBLOCK): %s",
65: fd, strerror(errno));
1.1 provos 66: }
67:
68: /* Characters considered whitespace in strsep calls. */
69: #define WHITESPACE " \t\r\n"
70:
71: char *
72: strdelim(char **s)
73: {
74: char *old;
75: int wspace = 0;
76:
77: if (*s == NULL)
78: return NULL;
79:
80: old = *s;
81:
82: *s = strpbrk(*s, WHITESPACE "=");
83: if (*s == NULL)
84: return (old);
85:
86: /* Allow only one '=' to be skipped */
87: if (*s[0] == '=')
88: wspace = 1;
89: *s[0] = '\0';
90:
91: *s += strspn(*s + 1, WHITESPACE) + 1;
92: if (*s[0] == '=' && !wspace)
93: *s += strspn(*s + 1, WHITESPACE) + 1;
94:
95: return (old);
96: }