diff options
Diffstat (limited to 'cmd-line-utils/libedit/np/unvis.c')
| -rw-r--r-- | cmd-line-utils/libedit/np/unvis.c | 99 |
1 files changed, 43 insertions, 56 deletions
diff --git a/cmd-line-utils/libedit/np/unvis.c b/cmd-line-utils/libedit/np/unvis.c index 895ff2059ac..3c37c231ceb 100644 --- a/cmd-line-utils/libedit/np/unvis.c +++ b/cmd-line-utils/libedit/np/unvis.c @@ -1,4 +1,4 @@ -/* $NetBSD: unvis.c,v 1.22 2002/03/23 17:38:27 christos Exp $ */ +/* $NetBSD: unvis.c,v 1.28 2005/09/13 01:44:09 christos Exp $ */ /*- * Copyright (c) 1989, 1993 @@ -12,11 +12,7 @@ * 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 + * 3. 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. * @@ -34,34 +30,30 @@ */ #include "config.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> +#ifdef HAVE_VIS_H +#include <vis.h> +#else #include "np/vis.h" +#endif #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 +#if !HAVE_VIS /* * decode driven by state machine */ @@ -72,30 +64,22 @@ __warn_references(unvis, #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 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) +unvis(cp, c, astate, flag) char *cp; int c; int *astate, flag; { + unsigned char uc = (unsigned char)c; _DIAGASSERT(cp != NULL); _DIAGASSERT(astate != NULL); @@ -105,7 +89,7 @@ __unvis13(cp, c, astate, flag) || *astate == S_HEX2) { *astate = S_GROUND; return (UNVIS_VALID); - } + } return (*astate == S_GROUND ? UNVIS_NOCHAR : UNVIS_SYNBAD); } @@ -116,7 +100,7 @@ __unvis13(cp, c, astate, flag) if (c == '\\') { *astate = S_START; return (0); - } + } if ((flag & VIS_HTTPSTYLE) && c == '%') { *astate = S_HEX1; return (0); @@ -193,7 +177,7 @@ __unvis13(cp, c, astate, flag) } *astate = S_GROUND; return (UNVIS_SYNBAD); - + case S_META: if (c == '-') *astate = S_META1; @@ -204,12 +188,12 @@ __unvis13(cp, c, astate, flag) return (UNVIS_SYNBAD); } return (0); - + case S_META1: *astate = S_GROUND; *cp |= c; return (UNVIS_VALID); - + case S_CTRL: if (c == '?') *cp |= 0177; @@ -219,23 +203,23 @@ __unvis13(cp, c, astate, flag) return (UNVIS_VALID); case S_OCTAL2: /* second possible octal digit */ - if (isoctal(c)) { - /* - * yes - and maybe a third + if (isoctal(uc)) { + /* + * yes - and maybe a third */ *cp = (*cp << 3) + (c - '0'); - *astate = S_OCTAL3; + *astate = S_OCTAL3; return (0); - } - /* - * no - done with current sequence, push back passed char + } + /* + * 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)) { + if (isoctal(uc)) { *cp = (*cp << 3) + (c - '0'); return (UNVIS_VALID); } @@ -243,27 +227,30 @@ __unvis13(cp, c, astate, flag) * we were done, push back passed char */ return (UNVIS_VALIDPUSH); + case S_HEX1: - if (isxdigit(c)) { - *cp = xtod(c); + if (isxdigit(uc)) { + *cp = xtod(uc); *astate = S_HEX2; return (0); } - /* - * no - done with current sequence, push back passed char + /* + * 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); + *astate = S_GROUND; + if (isxdigit(uc)) { + *cp = xtod(uc) | (*cp << 4); return (UNVIS_VALID); } - return (UNVIS_VALIDPUSH); - default: - /* - * decoder in unknown state - (probably uninitialized) + return (UNVIS_VALIDPUSH); + + default: + /* + * decoder in unknown state - (probably uninitialized) */ *astate = S_GROUND; return (UNVIS_SYNBAD); @@ -271,7 +258,7 @@ __unvis13(cp, c, astate, flag) } /* - * strunvis - decode src into dst + * strunvis - decode src into dst * * Number of chars decoded into dst is returned, -1 on error. * Dst is null terminated. @@ -291,8 +278,8 @@ strunvisx(dst, src, flag) _DIAGASSERT(dst != NULL); while ((c = *src++) != '\0') { - again: - switch (__unvis13(dst, c, &state, flag)) { + again: + switch (unvis(dst, c, &state, flag)) { case UNVIS_VALID: dst++; break; @@ -306,7 +293,7 @@ strunvisx(dst, src, flag) return (-1); } } - if (__unvis13(dst, c, &state, UNVIS_END) == UNVIS_VALID) + if (unvis(dst, c, &state, UNVIS_END) == UNVIS_VALID) dst++; *dst = '\0'; return (dst - start); |