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https://github.com/Telecominfraproject/OpenCellular.git
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3b77b723ca
PDCurses provides an alternative implementation of the curses library standard in addition to tinycurses. Where tinycurses is really tiny, PDCurses is more complete and provides virtually unlimited windows and the full API. The PDCurses code is brought in "vanilla", with all local changes residing in curses/pdcurses-backend/ In addition to a curses library, this change also provides libpanel (as part of the PDCurses code), and libform and libmenu which were derived from ncurses-5.9. As they rely on ncurses internals (and PDCurses is not ncurses), more changes were required for these libraries to work. The build system is extended to install the right set of header files depending on the selected curses implementation. Change-Id: I9e5b920f94b6510da01da2f656196a993170d1c5 Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com> Reviewed-on: http://review.coreboot.org/106 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
351 lines
9.8 KiB
C
351 lines
9.8 KiB
C
/****************************************************************************
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* Copyright (c) 1998-2009,2010 Free Software Foundation, Inc. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/***************************************************************************
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* *
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* Author : Juergen Pfeifer *
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* *
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***************************************************************************/
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#include "form.priv.h"
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MODULE_ID("$Id: fty_regex.c,v 1.24 2010/01/23 21:14:37 tom Exp $")
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#if HAVE_REGEX_H_FUNCS /* We prefer POSIX regex */
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#include <regex.h>
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typedef struct
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{
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regex_t *pRegExp;
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unsigned long *refCount;
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}
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RegExp_Arg;
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#elif HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS
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#undef RETURN
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static int reg_errno;
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static char *
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RegEx_Init(char *instring)
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{
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reg_errno = 0;
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return instring;
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}
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static char *
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RegEx_Error(int code)
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{
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reg_errno = code;
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return 0;
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}
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#define INIT register char *sp = RegEx_Init(instring);
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#define GETC() (*sp++)
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#define PEEKC() (*sp)
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#define UNGETC(c) (--sp)
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#define RETURN(c) return(c)
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#define ERROR(c) return RegEx_Error(c)
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#if HAVE_REGEXP_H_FUNCS
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#include <regexp.h>
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#else
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#include <regexpr.h>
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#endif
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typedef struct
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{
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char *compiled_expression;
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unsigned long *refCount;
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}
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RegExp_Arg;
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/* Maximum Length we allow for a compiled regular expression */
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#define MAX_RX_LEN (2048)
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#define RX_INCREMENT (256)
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#endif
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#if HAVE_REGEX_H_FUNCS | HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS
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# define MAYBE_UNUSED
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#else
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# define MAYBE_UNUSED GCC_UNUSED
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#endif
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/*---------------------------------------------------------------------------
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| Facility : libnform
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| Function : static void *Generic_RegularExpression_Type(void * arg)
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| Description : Allocate structure for regex type argument.
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| Return Values : Pointer to argument structure or NULL on error
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+--------------------------------------------------------------------------*/
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static void *
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Generic_RegularExpression_Type(void *arg MAYBE_UNUSED)
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{
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#if HAVE_REGEX_H_FUNCS
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char *rx = (char *)arg;
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RegExp_Arg *preg = (RegExp_Arg *)0;
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if (rx)
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{
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preg = typeMalloc(RegExp_Arg, 1);
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if (preg)
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{
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T((T_CREATE("RegExp_Arg %p"), (void *)preg));
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if (((preg->pRegExp = typeMalloc(regex_t, 1)) != 0)
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&& !regcomp(preg->pRegExp, rx,
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(REG_EXTENDED | REG_NOSUB | REG_NEWLINE)))
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{
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T((T_CREATE("regex_t %p"), (void *)preg->pRegExp));
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preg->refCount = typeMalloc(unsigned long, 1);
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*(preg->refCount) = 1;
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}
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else
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{
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if (preg->pRegExp)
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free(preg->pRegExp);
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free(preg);
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preg = (RegExp_Arg *)0;
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}
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}
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}
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return ((void *)preg);
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#elif HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS
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char *rx = (char *)arg;
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RegExp_Arg *pArg = (RegExp_Arg *)0;
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if (rx)
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{
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pArg = typeMalloc(RegExp_Arg, 1);
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if (pArg)
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{
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int blen = RX_INCREMENT;
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T((T_CREATE("RegExp_Arg %p"), pArg));
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pArg->compiled_expression = NULL;
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pArg->refCount = typeMalloc(unsigned long, 1);
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*(pArg->refCount) = 1;
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do
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{
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char *buf = typeMalloc(char, blen);
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if (buf)
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{
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#if HAVE_REGEXP_H_FUNCS
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char *last_pos = compile(rx, buf, &buf[blen], '\0');
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#else /* HAVE_REGEXPR_H_FUNCS */
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char *last_pos = compile(rx, buf, &buf[blen]);
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#endif
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if (reg_errno)
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{
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free(buf);
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if (reg_errno == 50)
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blen += RX_INCREMENT;
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else
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{
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free(pArg);
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pArg = NULL;
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break;
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}
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}
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else
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{
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pArg->compiled_expression = buf;
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break;
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}
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}
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}
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while (blen <= MAX_RX_LEN);
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}
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if (pArg && !pArg->compiled_expression)
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{
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free(pArg);
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pArg = NULL;
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}
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}
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return (void *)pArg;
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#else
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return 0;
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#endif
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}
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/*---------------------------------------------------------------------------
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| Facility : libnform
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| Function : static void *Make_RegularExpression_Type(va_list * ap)
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| Description : Allocate structure for regex type argument.
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| Return Values : Pointer to argument structure or NULL on error
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+--------------------------------------------------------------------------*/
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static void *
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Make_RegularExpression_Type(va_list *ap)
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{
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char *rx = va_arg(*ap, char *);
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return Generic_RegularExpression_Type((void *)rx);
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}
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/*---------------------------------------------------------------------------
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| Facility : libnform
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| Function : static void *Copy_RegularExpression_Type(
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| const void * argp)
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| Description : Copy structure for regex type argument.
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| Return Values : Pointer to argument structure or NULL on error.
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+--------------------------------------------------------------------------*/
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static void *
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Copy_RegularExpression_Type(const void *argp MAYBE_UNUSED)
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{
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#if (HAVE_REGEX_H_FUNCS | HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS)
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const RegExp_Arg *ap = (const RegExp_Arg *)argp;
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const RegExp_Arg *result = (const RegExp_Arg *)0;
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if (ap)
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{
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*(ap->refCount) += 1;
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result = ap;
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}
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return (void *)result;
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#else
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return 0;
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#endif
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}
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/*---------------------------------------------------------------------------
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| Facility : libnform
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| Function : static void Free_RegularExpression_Type(void * argp)
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| Description : Free structure for regex type argument.
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| Return Values : -
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+--------------------------------------------------------------------------*/
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static void
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Free_RegularExpression_Type(void *argp MAYBE_UNUSED)
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{
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#if HAVE_REGEX_H_FUNCS | HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS
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RegExp_Arg *ap = (RegExp_Arg *)argp;
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if (ap)
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{
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if (--(*(ap->refCount)) == 0)
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{
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#if HAVE_REGEX_H_FUNCS
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if (ap->pRegExp)
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{
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free(ap->refCount);
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regfree(ap->pRegExp);
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}
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#elif HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS
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if (ap->compiled_expression)
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{
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free(ap->refCount);
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free(ap->compiled_expression);
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}
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#endif
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free(ap);
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}
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}
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#endif
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}
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/*---------------------------------------------------------------------------
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| Facility : libnform
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| Function : static bool Check_RegularExpression_Field(
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| FIELD * field,
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| const void * argp)
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| Description : Validate buffer content to be a valid regular expression
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| Return Values : TRUE - field is valid
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| FALSE - field is invalid
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+--------------------------------------------------------------------------*/
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static bool
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Check_RegularExpression_Field(FIELD *field MAYBE_UNUSED,
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const void *argp MAYBE_UNUSED)
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{
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bool match = FALSE;
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#if HAVE_REGEX_H_FUNCS
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const RegExp_Arg *ap = (const RegExp_Arg *)argp;
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if (ap && ap->pRegExp)
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match = (regexec(ap->pRegExp, field_buffer(field, 0), 0, NULL, 0)
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? FALSE
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: TRUE);
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#elif HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS
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RegExp_Arg *ap = (RegExp_Arg *)argp;
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if (ap && ap->compiled_expression)
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match = (step(field_buffer(field, 0), ap->compiled_expression)
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? TRUE
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: FALSE);
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#endif
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return match;
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}
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static FIELDTYPE typeREGEXP =
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{
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_HAS_ARGS | _RESIDENT,
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1, /* this is mutable, so we can't be const */
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(FIELDTYPE *)0,
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(FIELDTYPE *)0,
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Make_RegularExpression_Type,
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Copy_RegularExpression_Type,
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Free_RegularExpression_Type,
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INIT_FT_FUNC(Check_RegularExpression_Field),
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INIT_FT_FUNC(NULL),
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INIT_FT_FUNC(NULL),
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INIT_FT_FUNC(NULL),
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#if NCURSES_INTEROP_FUNCS
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Generic_RegularExpression_Type
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#endif
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};
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NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_REGEXP = &typeREGEXP;
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#if NCURSES_INTEROP_FUNCS
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/* The next routines are to simplify the use of ncurses from
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programming languages with restictions on interop with C level
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constructs (e.g. variable access or va_list + ellipsis constructs)
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*/
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NCURSES_EXPORT(FIELDTYPE *)
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_nc_TYPE_REGEXP(void)
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{
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return TYPE_REGEXP;
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}
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#endif
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/* fty_regex.c ends here */
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