diff options
Diffstat (limited to 'crypto/openssh/openbsd-compat/vis.c')
| -rw-r--r-- | crypto/openssh/openbsd-compat/vis.c | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/crypto/openssh/openbsd-compat/vis.c b/crypto/openssh/openbsd-compat/vis.c deleted file mode 100644 index fc57413907bd..000000000000 --- a/crypto/openssh/openbsd-compat/vis.c +++ /dev/null @@ -1,232 +0,0 @@ -/*- - * Copyright (c) 1989, 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. - */ -#include "config.h" -#if !defined(HAVE_STRNVIS) - -#if defined(LIBC_SCCS) && !defined(lint) -static char rcsid[] = "$OpenBSD: vis.c,v 1.8 2002/02/19 19:39:36 millert Exp $"; -#endif /* LIBC_SCCS and not lint */ - -#include <ctype.h> - -#include "vis.h" - -#define isoctal(c) (((u_char)(c)) >= '0' && ((u_char)(c)) <= '7') -#define isvisible(c) (((u_int)(c) <= UCHAR_MAX && isascii((u_char)(c)) && \ - isgraph((u_char)(c))) || \ - ((flag & VIS_SP) == 0 && (c) == ' ') || \ - ((flag & VIS_TAB) == 0 && (c) == '\t') || \ - ((flag & VIS_NL) == 0 && (c) == '\n') || \ - ((flag & VIS_SAFE) && \ - ((c) == '\b' || (c) == '\007' || (c) == '\r'))) - -/* - * vis - visually encode characters - */ -char * -vis(dst, c, flag, nextc) - register char *dst; - int c, nextc; - register int flag; -{ - if (isvisible(c)) { - *dst++ = c; - if (c == '\\' && (flag & VIS_NOSLASH) == 0) - *dst++ = '\\'; - *dst = '\0'; - return (dst); - } - - if (flag & VIS_CSTYLE) { - switch(c) { - case '\n': - *dst++ = '\\'; - *dst++ = 'n'; - goto done; - case '\r': - *dst++ = '\\'; - *dst++ = 'r'; - goto done; - case '\b': - *dst++ = '\\'; - *dst++ = 'b'; - goto done; - case '\a': - *dst++ = '\\'; - *dst++ = 'a'; - goto done; - case '\v': - *dst++ = '\\'; - *dst++ = 'v'; - goto done; - case '\t': - *dst++ = '\\'; - *dst++ = 't'; - goto done; - case '\f': - *dst++ = '\\'; - *dst++ = 'f'; - goto done; - case ' ': - *dst++ = '\\'; - *dst++ = 's'; - goto done; - case '\0': - *dst++ = '\\'; - *dst++ = '0'; - if (isoctal(nextc)) { - *dst++ = '0'; - *dst++ = '0'; - } - goto done; - } - } - if (((c & 0177) == ' ') || (flag & VIS_OCTAL)) { - *dst++ = '\\'; - *dst++ = ((u_char)c >> 6 & 07) + '0'; - *dst++ = ((u_char)c >> 3 & 07) + '0'; - *dst++ = ((u_char)c & 07) + '0'; - goto done; - } - if ((flag & VIS_NOSLASH) == 0) - *dst++ = '\\'; - if (c & 0200) { - c &= 0177; - *dst++ = 'M'; - } - if (iscntrl(c)) { - *dst++ = '^'; - if (c == 0177) - *dst++ = '?'; - else - *dst++ = c + '@'; - } else { - *dst++ = '-'; - *dst++ = c; - } -done: - *dst = '\0'; - return (dst); -} - -/* - * strvis, strnvis, strvisx - visually encode characters from src into dst - * - * Dst must be 4 times the size of src to account for possible - * expansion. The length of dst, not including the trailing NULL, - * is returned. - * - * Strnvis will write no more than siz-1 bytes (and will NULL terminate). - * The number of bytes needed to fully encode the string is returned. - * - * Strvisx encodes exactly len bytes from src into dst. - * This is useful for encoding a block of data. - */ -int -strvis(dst, src, flag) - register char *dst; - register const char *src; - int flag; -{ - register char c; - char *start; - - for (start = dst; (c = *src);) - dst = vis(dst, c, flag, *++src); - *dst = '\0'; - return (dst - start); -} - -int -strnvis(dst, src, siz, flag) - register char *dst; - register const char *src; - size_t siz; - int flag; -{ - register char c; - char *start, *end; - - for (start = dst, end = start + siz - 1; (c = *src) && dst < end; ) { - if (isvisible(c)) { - *dst++ = c; - if (c == '\\' && (flag & VIS_NOSLASH) == 0) { - /* need space for the extra '\\' */ - if (dst < end) - *dst++ = '\\'; - else { - dst--; - break; - } - } - src++; - } else { - /* vis(3) requires up to 4 chars */ - if (dst + 3 < end) - dst = vis(dst, c, flag, *++src); - else - break; - } - } - *dst = '\0'; - if (dst >= end) { - char tbuf[5]; - - /* adjust return value for truncation */ - while ((c = *src)) - dst += vis(tbuf, c, flag, *++src) - tbuf; - } - return (dst - start); -} - -int -strvisx(dst, src, len, flag) - register char *dst; - register const char *src; - register size_t len; - int flag; -{ - register char c; - char *start; - - for (start = dst; len > 1; len--) { - c = *src; - dst = vis(dst, c, flag, *++src); - } - if (len) - dst = vis(dst, *src, flag, '\0'); - *dst = '\0'; - return (dst - start); -} - -#endif |