diff options
Diffstat (limited to 'trunk/main/editline/np')
| -rw-r--r-- | trunk/main/editline/np/fgetln.c | 88 | ||||
| -rw-r--r-- | trunk/main/editline/np/strlcat.c | 75 | ||||
| -rw-r--r-- | trunk/main/editline/np/strlcpy.c | 75 | ||||
| -rw-r--r-- | trunk/main/editline/np/unvis.c | 322 | ||||
| -rw-r--r-- | trunk/main/editline/np/vis.c | 347 | ||||
| -rw-r--r-- | trunk/main/editline/np/vis.h | 96 |
6 files changed, 1003 insertions, 0 deletions
diff --git a/trunk/main/editline/np/fgetln.c b/trunk/main/editline/np/fgetln.c new file mode 100644 index 000000000..93da9914d --- /dev/null +++ b/trunk/main/editline/np/fgetln.c @@ -0,0 +1,88 @@ +/* $NetBSD: fgetln.c,v 1.1.1.1 1999/04/12 07:43:21 crooksa Exp $ */ + +/*- + * Copyright (c) 1998 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Christos Zoulas. + * + * 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 NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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" +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <errno.h> +#include <string.h> + +char * +fgetln(fp, len) + FILE *fp; + size_t *len; +{ + static char *buf = NULL; + static size_t bufsiz = 0; + char *ptr; + + + if (buf == NULL) { + bufsiz = BUFSIZ; + if ((buf = malloc(bufsiz)) == NULL) + return NULL; + } + + if (fgets(buf, bufsiz, fp) == NULL) + return NULL; + *len = 0; + + while ((ptr = strchr(&buf[*len], '\n')) == NULL) { + size_t nbufsiz = bufsiz + BUFSIZ; + char *nbuf = realloc(buf, nbufsiz); + + if (nbuf == NULL) { + int oerrno = errno; + free(buf); + errno = oerrno; + buf = NULL; + return NULL; + } else + buf = nbuf; + + *len = bufsiz; + if (fgets(&buf[bufsiz], BUFSIZ, fp) == NULL) + return buf; + + bufsiz = nbufsiz; + } + + *len = (ptr - buf) + 1; + return buf; +} diff --git a/trunk/main/editline/np/strlcat.c b/trunk/main/editline/np/strlcat.c new file mode 100644 index 000000000..6c9f1e92d --- /dev/null +++ b/trunk/main/editline/np/strlcat.c @@ -0,0 +1,75 @@ +/* + * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> + * 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. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``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 "config.h" +#if defined(LIBC_SCCS) && !defined(lint) +static char *rcsid = "$OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp $"; +#endif /* LIBC_SCCS and not lint */ +#ifndef lint +static const char rcsid[] = + "$FreeBSD: src/lib/libc/string/strlcat.c,v 1.2.4.2 2001/07/09 23:30:06 obrien Exp $"; +#endif + +#include <sys/types.h> +#include <string.h> + +/* + * Appends src to string dst of size siz (unlike strncat, siz is the + * full size of dst, not space left). At most siz-1 characters + * will be copied. Always NUL terminates (unless siz <= strlen(dst)). + * Returns strlen(initial dst) + strlen(src); if retval >= siz, + * truncation occurred. + */ +size_t strlcat(dst, src, siz) + char *dst; + const char *src; + size_t siz; +{ + register char *d = dst; + register const char *s = src; + register size_t n = siz; + size_t dlen; + + /* Find the end of dst and adjust bytes left but don't go past end */ + while (n-- != 0 && *d != '\0') + d++; + dlen = d - dst; + n = siz - dlen; + + if (n == 0) + return(dlen + strlen(s)); + while (*s != '\0') { + if (n != 1) { + *d++ = *s; + n--; + } + s++; + } + *d = '\0'; + + return(dlen + (s - src)); /* count does not include NUL */ +} diff --git a/trunk/main/editline/np/strlcpy.c b/trunk/main/editline/np/strlcpy.c new file mode 100644 index 000000000..1f154bcf2 --- /dev/null +++ b/trunk/main/editline/np/strlcpy.c @@ -0,0 +1,75 @@ +/* $OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp $ */ + +/* + * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> + * 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. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``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 "config.h" +#if defined(LIBC_SCCS) && !defined(lint) +#if 0 +static char *rcsid = "$OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp $"; +#endif +#endif /* LIBC_SCCS and not lint */ +#ifndef lint +static const char rcsid[] = + "$FreeBSD: src/lib/libc/string/strlcpy.c,v 1.2.4.1 2001/07/09 23:30:06 obrien Exp $"; +#endif + +#include <sys/types.h> +#include <string.h> + +/* + * Copy src to string dst of size siz. At most siz-1 characters + * will be copied. Always NUL terminates (unless siz == 0). + * Returns strlen(src); if retval >= siz, truncation occurred. + */ +size_t strlcpy(dst, src, siz) + char *dst; + const char *src; + size_t siz; +{ + register char *d = dst; + register const char *s = src; + register size_t n = siz; + + /* Copy as many bytes as will fit */ + if (n != 0 && --n != 0) { + do { + if ((*d++ = *s++) == 0) + break; + } while (--n != 0); + } + + /* Not enough room in dst, add NUL and traverse rest of src */ + if (n == 0) { + if (siz != 0) + *d = '\0'; /* NUL-terminate dst */ + while (*s++) + ; + } + + return(s - src - 1); /* count does not include NUL */ +} diff --git a/trunk/main/editline/np/unvis.c b/trunk/main/editline/np/unvis.c new file mode 100644 index 000000000..f43c4c749 --- /dev/null +++ b/trunk/main/editline/np/unvis.c @@ -0,0 +1,322 @@ +/* $NetBSD: unvis.c,v 1.22 2002/03/23 17:38:27 christos Exp $ */ + +/*- + * 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 <sys/cdefs.h> +#if defined(LIBC_SCCS) && !defined(lint) +#if 0 +static char sccsid[] = "@(#)unvis.c 8.1 (Berkeley) 6/4/93"; +#else +__RCSID("$NetBSD: unvis.c,v 1.22 2002/03/23 17:38:27 christos Exp $"); +#endif +#endif /* LIBC_SCCS and not lint */ + +#define __LIBC12_SOURCE__ + +#include <sys/types.h> + +#include <assert.h> +#include <ctype.h> +#include <stdio.h> +#include "np/vis.h" + +#ifdef __weak_alias +__weak_alias(strunvis,_strunvis) +__weak_alias(unvis,_unvis) +#endif + +#ifdef __warn_references +__warn_references(unvis, + "warning: reference to compatibility unvis(); include <vis.h> for correct reference") +#endif + +#if !HAVE_VIS_H +/* + * decode driven by state machine + */ +#define S_GROUND 0 /* haven't seen escape char */ +#define S_START 1 /* start decoding special sequence */ +#define S_META 2 /* metachar started (M) */ +#define S_META1 3 /* metachar more, regular char (-) */ +#define S_CTRL 4 /* control char started (^) */ +#define S_OCTAL2 5 /* octal digit 2 */ +#define S_OCTAL3 6 /* octal digit 3 */ +#define S_HEX1 7 /* hex digit */ +#define S_HEX2 8 /* hex digit 2 */ + +#define isoctal(c) (((u_char)(c)) >= '0' && ((u_char)(c)) <= '7') +#define xtod(c) (isdigit(c) ? (c - '0') : ((tolower(c) - 'a') + 10)) + +int +unvis(cp, c, astate, flag) + char *cp; + int c; + int *astate, flag; +{ + return __unvis13(cp, (int)c, astate, flag); +} + +/* + * unvis - decode characters previously encoded by vis + */ +int +__unvis13(cp, c, astate, flag) + char *cp; + int c; + int *astate, flag; +{ + + _DIAGASSERT(cp != NULL); + _DIAGASSERT(astate != NULL); + + if (flag & UNVIS_END) { + if (*astate == S_OCTAL2 || *astate == S_OCTAL3 + || *astate == S_HEX2) { + *astate = S_GROUND; + return (UNVIS_VALID); + } + return (*astate == S_GROUND ? UNVIS_NOCHAR : UNVIS_SYNBAD); + } + + switch (*astate) { + + case S_GROUND: + *cp = 0; + if (c == '\\') { + *astate = S_START; + return (0); + } + if ((flag & VIS_HTTPSTYLE) && c == '%') { + *astate = S_HEX1; + return (0); + } + *cp = c; + return (UNVIS_VALID); + + case S_START: + switch(c) { + case '\\': + *cp = c; + *astate = S_GROUND; + return (UNVIS_VALID); + case '0': case '1': case '2': case '3': + case '4': case '5': case '6': case '7': + *cp = (c - '0'); + *astate = S_OCTAL2; + return (0); + case 'M': + *cp = (char)0200; + *astate = S_META; + return (0); + case '^': + *astate = S_CTRL; + return (0); + case 'n': + *cp = '\n'; + *astate = S_GROUND; + return (UNVIS_VALID); + case 'r': + *cp = '\r'; + *astate = S_GROUND; + return (UNVIS_VALID); + case 'b': + *cp = '\b'; + *astate = S_GROUND; + return (UNVIS_VALID); + case 'a': + *cp = '\007'; + *astate = S_GROUND; + return (UNVIS_VALID); + case 'v': + *cp = '\v'; + *astate = S_GROUND; + return (UNVIS_VALID); + case 't': + *cp = '\t'; + *astate = S_GROUND; + return (UNVIS_VALID); + case 'f': + *cp = '\f'; + *astate = S_GROUND; + return (UNVIS_VALID); + case 's': + *cp = ' '; + *astate = S_GROUND; + return (UNVIS_VALID); + case 'E': + *cp = '\033'; + *astate = S_GROUND; + return (UNVIS_VALID); + case '\n': + /* + * hidden newline + */ + *astate = S_GROUND; + return (UNVIS_NOCHAR); + case '$': + /* + * hidden marker + */ + *astate = S_GROUND; + return (UNVIS_NOCHAR); + } + *astate = S_GROUND; + return (UNVIS_SYNBAD); + + case S_META: + if (c == '-') + *astate = S_META1; + else if (c == '^') + *astate = S_CTRL; + else { + *astate = S_GROUND; + return (UNVIS_SYNBAD); + } + return (0); + + case S_META1: + *astate = S_GROUND; + *cp |= c; + return (UNVIS_VALID); + + case S_CTRL: + if (c == '?') + *cp |= 0177; + else + *cp |= c & 037; + *astate = S_GROUND; + return (UNVIS_VALID); + + case S_OCTAL2: /* second possible octal digit */ + if (isoctal(c)) { + /* + * yes - and maybe a third + */ + *cp = (*cp << 3) + (c - '0'); + *astate = S_OCTAL3; + return (0); + } + /* + * no - done with current sequence, push back passed char + */ + *astate = S_GROUND; + return (UNVIS_VALIDPUSH); + + case S_OCTAL3: /* third possible octal digit */ + *astate = S_GROUND; + if (isoctal(c)) { + *cp = (*cp << 3) + (c - '0'); + return (UNVIS_VALID); + } + /* + * we were done, push back passed char + */ + return (UNVIS_VALIDPUSH); + case S_HEX1: + if (isxdigit(c)) { + *cp = xtod(c); + *astate = S_HEX2; + return (0); + } + /* + * no - done with current sequence, push back passed char + */ + *astate = S_GROUND; + return (UNVIS_VALIDPUSH); + case S_HEX2: + *astate = S_GROUND; + if (isxdigit(c)) { + *cp = xtod(c) | (*cp << 4); + return (UNVIS_VALID); + } + return (UNVIS_VALIDPUSH); + default: + /* + * decoder in unknown state - (probably uninitialized) + */ + *astate = S_GROUND; + return (UNVIS_SYNBAD); + } +} + +/* + * strunvis - decode src into dst + * + * Number of chars decoded into dst is returned, -1 on error. + * Dst is null terminated. + */ + +int +strunvisx(dst, src, flag) + char *dst; + const char *src; + int flag; +{ + char c; + char *start = dst; + int state = 0; + + _DIAGASSERT(src != NULL); + _DIAGASSERT(dst != NULL); + + while ((c = *src++) != '\0') { + again: + switch (__unvis13(dst, c, &state, flag)) { + case UNVIS_VALID: + dst++; + break; + case UNVIS_VALIDPUSH: + dst++; + goto again; + case 0: + case UNVIS_NOCHAR: + break; + default: + return (-1); + } + } + if (__unvis13(dst, c, &state, UNVIS_END) == UNVIS_VALID) + dst++; + *dst = '\0'; + return (dst - start); +} + +int +strunvis(dst, src) + char *dst; + const char *src; +{ + return strunvisx(dst, src, 0); +} +#endif diff --git a/trunk/main/editline/np/vis.c b/trunk/main/editline/np/vis.c new file mode 100644 index 000000000..7d9117faa --- /dev/null +++ b/trunk/main/editline/np/vis.c @@ -0,0 +1,347 @@ +/* $NetBSD: vis.c,v 1.22 2002/03/23 17:38:27 christos Exp $ */ + +/*- + * Copyright (c) 1999 The NetBSD Foundation, Inc. + * 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 <sys/cdefs.h> +#if defined(LIBC_SCCS) && !defined(lint) +__RCSID("$NetBSD: vis.c,v 1.22 2002/03/23 17:38:27 christos Exp $"); +#endif /* LIBC_SCCS and not lint */ + +#include <sys/types.h> + +#include <assert.h> +#include "np/vis.h" +#include <stdlib.h> + +#ifdef __weak_alias +__weak_alias(strsvis,_strsvis) +__weak_alias(strsvisx,_strsvisx) +__weak_alias(strvis,_strvis) +__weak_alias(strvisx,_strvisx) +__weak_alias(svis,_svis) +__weak_alias(vis,_vis) +#endif + +#ifndef HAVE_VIS_H +#include <ctype.h> +#include <limits.h> +#include <stdio.h> +#include <string.h> + +#undef BELL +#if defined(__STDC__) +#define BELL '\a' +#else +#define BELL '\007' +#endif + +#ifdef SOLARIS +#include <alloca.h> +#endif + +#define isoctal(c) (((u_char)(c)) >= '0' && ((u_char)(c)) <= '7') +#define iswhite(c) (c == ' ' || c == '\t' || c == '\n') +#define issafe(c) (c == '\b' || c == BELL || c == '\r') +#define xtoa(c) "0123456789abcdef"[c] + +#define MAXEXTRAS 5 + + +#define MAKEEXTRALIST(flag, extra, orig) \ +do { \ + const char *o = orig; \ + char *e; \ + while (*o++) \ + continue; \ + extra = alloca((size_t)((o - orig) + MAXEXTRAS)); \ + for (o = orig, e = extra; (*e++ = *o++) != '\0';) \ + continue; \ + e--; \ + if (flag & VIS_SP) *e++ = ' '; \ + if (flag & VIS_TAB) *e++ = '\t'; \ + if (flag & VIS_NL) *e++ = '\n'; \ + if ((flag & VIS_NOSLASH) == 0) *e++ = '\\'; \ + *e = '\0'; \ +} while (/*CONSTCOND*/0) + + +/* + * This is HVIS, the macro of vis used to HTTP style (RFC 1808) + */ +#define HVIS(dst, c, flag, nextc, extra) \ +do \ + if (!isascii(c) || !isalnum(c) || strchr("$-_.+!*'(),", c) != NULL) { \ + *dst++ = '%'; \ + *dst++ = xtoa(((unsigned int)c >> 4) & 0xf); \ + *dst++ = xtoa((unsigned int)c & 0xf); \ + } else { \ + SVIS(dst, c, flag, nextc, extra); \ + } \ +while (/*CONSTCOND*/0) + +/* + * This is SVIS, the central macro of vis. + * dst: Pointer to the destination buffer + * c: Character to encode + * flag: Flag word + * nextc: The character following 'c' + * extra: Pointer to the list of extra characters to be + * backslash-protected. + */ +#define SVIS(dst, c, flag, nextc, extra) \ +do { \ + int isextra, isc; \ + isextra = strchr(extra, c) != NULL; \ + if (!isextra && isascii(c) && (isgraph(c) || iswhite(c) || \ + ((flag & VIS_SAFE) && issafe(c)))) { \ + *dst++ = c; \ + break; \ + } \ + isc = 0; \ + if (flag & VIS_CSTYLE) { \ + switch (c) { \ + case '\n': \ + isc = 1; *dst++ = '\\'; *dst++ = 'n'; \ + break; \ + case '\r': \ + isc = 1; *dst++ = '\\'; *dst++ = 'r'; \ + break; \ + case '\b': \ + isc = 1; *dst++ = '\\'; *dst++ = 'b'; \ + break; \ + case BELL: \ + isc = 1; *dst++ = '\\'; *dst++ = 'a'; \ + break; \ + case '\v': \ + isc = 1; *dst++ = '\\'; *dst++ = 'v'; \ + break; \ + case '\t': \ + isc = 1; *dst++ = '\\'; *dst++ = 't'; \ + break; \ + case '\f': \ + isc = 1; *dst++ = '\\'; *dst++ = 'f'; \ + break; \ + case ' ': \ + isc = 1; *dst++ = '\\'; *dst++ = 's'; \ + break; \ + case '\0': \ + isc = 1; *dst++ = '\\'; *dst++ = '0'; \ + if (isoctal(nextc)) { \ + *dst++ = '0'; \ + *dst++ = '0'; \ + } \ + } \ + } \ + if (isc) break; \ + if (isextra || ((c & 0177) == ' ') || (flag & VIS_OCTAL)) { \ + *dst++ = '\\'; \ + *dst++ = (u_char)(((u_int32_t)(u_char)c >> 6) & 03) + '0'; \ + *dst++ = (u_char)(((u_int32_t)(u_char)c >> 3) & 07) + '0'; \ + *dst++ = (c & 07) + '0'; \ + } else { \ + 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; \ + } \ + } \ +} while (/*CONSTCOND*/0) + + +/* + * svis - visually encode characters, also encoding the characters + * pointed to by `extra' + */ +char * +svis(dst, c, flag, nextc, extra) + char *dst; + int c, flag, nextc; + const char *extra; +{ + char *nextra; + _DIAGASSERT(dst != NULL); + _DIAGASSERT(extra != NULL); + MAKEEXTRALIST(flag, nextra, extra); + if (flag & VIS_HTTPSTYLE) + HVIS(dst, c, flag, nextc, nextra); + else + SVIS(dst, c, flag, nextc, nextra); + *dst = '\0'; + return(dst); +} + + +/* + * strsvis, strsvisx - visually encode characters from src into dst + * + * Extra is a pointer to a \0-terminated list of characters to + * be encoded, too. These functions are useful e. g. to + * encode strings in such a way so that they are not interpreted + * by a shell. + * + * 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. + * + * Strsvisx encodes exactly len bytes from src into dst. + * This is useful for encoding a block of data. + */ +int +strsvis(dst, src, flag, extra) + char *dst; + const char *src; + int flag; + const char *extra; +{ + char c; + char *start; + char *nextra; + + _DIAGASSERT(dst != NULL); + _DIAGASSERT(src != NULL); + _DIAGASSERT(extra != NULL); + MAKEEXTRALIST(flag, nextra, extra); + if (flag & VIS_HTTPSTYLE) { + for (start = dst; (c = *src++) != '\0'; /* empty */) + HVIS(dst, c, flag, *src, nextra); + } else { + for (start = dst; (c = *src++) != '\0'; /* empty */) + SVIS(dst, c, flag, *src, nextra); + } + *dst = '\0'; + return (dst - start); +} + + +int +strsvisx(dst, src, len, flag, extra) + char *dst; + const char *src; + size_t len; + int flag; + const char *extra; +{ + char c; + char *start; + char *nextra; + + _DIAGASSERT(dst != NULL); + _DIAGASSERT(src != NULL); + _DIAGASSERT(extra != NULL); + MAKEEXTRALIST(flag, nextra, extra); + + if (flag & VIS_HTTPSTYLE) { + for (start = dst; len > 0; len--) { + c = *src++; + HVIS(dst, c, flag, len ? *src : '\0', nextra); + } + } else { + for (start = dst; len > 0; len--) { + c = *src++; + SVIS(dst, c, flag, len ? *src : '\0', nextra); + } + } + *dst = '\0'; + return (dst - start); +} + + +/* + * vis - visually encode characters + */ +char * +vis(dst, c, flag, nextc) + char *dst; + int c, flag, nextc; + +{ + char *extra; + + _DIAGASSERT(dst != NULL); + + MAKEEXTRALIST(flag, extra, ""); + if (flag & VIS_HTTPSTYLE) + HVIS(dst, c, flag, nextc, extra); + else + SVIS(dst, c, flag, nextc, extra); + *dst = '\0'; + return (dst); +} + + +/* + * strvis, 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. + * + * Strvisx encodes exactly len bytes from src into dst. + * This is useful for encoding a block of data. + */ +int +strvis(dst, src, flag) + char *dst; + const char *src; + int flag; +{ + char *extra; + + MAKEEXTRALIST(flag, extra, ""); + return (strsvis(dst, src, flag, extra)); +} + + +int +strvisx(dst, src, len, flag) + char *dst; + const char *src; + size_t len; + int flag; +{ + char *extra; + + MAKEEXTRALIST(flag, extra, ""); + return (strsvisx(dst, src, len, flag, extra)); +} +#endif diff --git a/trunk/main/editline/np/vis.h b/trunk/main/editline/np/vis.h new file mode 100644 index 000000000..0739c1dfa --- /dev/null +++ b/trunk/main/editline/np/vis.h @@ -0,0 +1,96 @@ +/* $NetBSD: vis.h,v 1.12 2002/03/23 17:39:05 christos Exp $ */ + +/*- + * Copyright (c) 1990, 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. + * + * @(#)vis.h 8.1 (Berkeley) 6/2/93 + */ + +#ifndef _VIS_H_ +#define _VIS_H_ + +/* + * to select alternate encoding format + */ +#define VIS_OCTAL 0x01 /* use octal \ddd format */ +#define VIS_CSTYLE 0x02 /* use \[nrft0..] where appropiate */ + +/* + * to alter set of characters encoded (default is to encode all + * non-graphic except space, tab, and newline). + */ +#define VIS_SP 0x04 /* also encode space */ +#define VIS_TAB 0x08 /* also encode tab */ +#define VIS_NL 0x10 /* also encode newline */ +#define VIS_WHITE (VIS_SP | VIS_TAB | VIS_NL) +#define VIS_SAFE 0x20 /* only encode "unsafe" characters */ + +/* + * other + */ +#define VIS_NOSLASH 0x40 /* inhibit printing '\' */ +#define VIS_HTTPSTYLE 0x80 /* http-style escape % HEX HEX */ + +/* + * unvis return codes + */ +#define UNVIS_VALID 1 /* character valid */ +#define UNVIS_VALIDPUSH 2 /* character valid, push back passed char */ +#define UNVIS_NOCHAR 3 /* valid sequence, no character produced */ +#define UNVIS_SYNBAD -1 /* unrecognized escape sequence */ +#define UNVIS_ERROR -2 /* decoder in unknown state (unrecoverable) */ + +/* + * unvis flags + */ +#define UNVIS_END 1 /* no more characters */ + +#include <sys/cdefs.h> + +__BEGIN_DECLS +char *vis __P((char *, int, int, int)); +char *svis __P((char *, int, int, int, const char *)); +int strvis __P((char *, const char *, int)); +int strsvis __P((char *, const char *, int, const char *)); +int strvisx __P((char *, const char *, size_t, int)); +int strsvisx __P((char *, const char *, size_t, int, const char *)); +int strunvis __P((char *, const char *)); +int strunvisx __P((char *, const char *, int)); +#ifdef __LIBC12_SOURCE__ +int unvis __P((char *, int, int *, int)); +int __unvis13 __P((char *, int, int *, int)); +#else +int unvis __P((char *, int, int *, int)) __RENAME(__unvis13); +#endif +__END_DECLS + +#endif /* !_VIS_H_ */ |