diff options
Diffstat (limited to 'crypto/openssh/util.c')
-rw-r--r-- | crypto/openssh/util.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/crypto/openssh/util.c b/crypto/openssh/util.c new file mode 100644 index 0000000..71808f1 --- /dev/null +++ b/crypto/openssh/util.c @@ -0,0 +1,99 @@ +/* $OpenBSD: util.c,v 1.5 2000/09/07 20:27:55 deraadt Exp $ */ + +/* + * Copyright (c) 2000 Markus Friedl. 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 "includes.h" +RCSID("$OpenBSD: util.c,v 1.5 2000/09/07 20:27:55 deraadt Exp $"); + +#include "ssh.h" + +char * +chop(char *s) +{ + char *t = s; + while (*t) { + if(*t == '\n' || *t == '\r') { + *t = '\0'; + return s; + } + t++; + } + return s; + +} + +void +set_nonblock(int fd) +{ + int val; + if (isatty(fd)) { + /* do not mess with tty's */ + debug("no set_nonblock for tty fd %d", fd); + return; + } + val = fcntl(fd, F_GETFL, 0); + if (val < 0) { + error("fcntl(%d, F_GETFL, 0): %s", fd, strerror(errno)); + return; + } + if (val & O_NONBLOCK) + return; + debug("fd %d setting O_NONBLOCK", fd); + val |= O_NONBLOCK; + if (fcntl(fd, F_SETFL, val) == -1) + if (errno != ENODEV) + error("fcntl(%d, F_SETFL, O_NONBLOCK): %s", + fd, strerror(errno)); +} + +/* Characters considered whitespace in strsep calls. */ +#define WHITESPACE " \t\r\n" + +char * +strdelim(char **s) +{ + char *old; + int wspace = 0; + + if (*s == NULL) + return NULL; + + old = *s; + + *s = strpbrk(*s, WHITESPACE "="); + if (*s == NULL) + return (old); + + /* Allow only one '=' to be skipped */ + if (*s[0] == '=') + wspace = 1; + *s[0] = '\0'; + + *s += strspn(*s + 1, WHITESPACE) + 1; + if (*s[0] == '=' && !wspace) + *s += strspn(*s + 1, WHITESPACE) + 1; + + return (old); +} |