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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libform/fty_regex.c	Lines:	0	26	0.0 %
Date:	2017-11-07	Branches:	0	22	0.0 %


/*	$OpenBSD: fty_regex.c,v 1.9 2015/01/23 22:48:51 krw Exp $	*/
/****************************************************************************
 * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc.              *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/***************************************************************************
*                                                                          *
*  Author : Juergen Pfeifer                                                *
*                                                                          *
***************************************************************************/

#include "form.priv.h"

MODULE_ID("$Id: fty_regex.c,v 1.9 2015/01/23 22:48:51 krw Exp $")

#if HAVE_REGEX_H_FUNCS		/* We prefer POSIX regex */
#include <regex.h>

typedef struct
  {
    regex_t *pRegExp;
    unsigned long *refCount;
  }
RegExp_Arg;

#elif HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS
#undef RETURN
static int reg_errno;

static char *
RegEx_Init(char *instring)
{
  reg_errno = 0;
  return instring;
}

static char *
RegEx_Error(int code)
{
  reg_errno = code;
  return 0;
}

#define INIT 		register char *sp = RegEx_Init(instring);
#define GETC()		(*sp++)
#define PEEKC()		(*sp)
#define UNGETC(c)	(--sp)
#define RETURN(c)	return(c)
#define ERROR(c)	return RegEx_Error(c)

#if HAVE_REGEXP_H_FUNCS
#include <regexp.h>
#else
#include <regexpr.h>
#endif

typedef struct
{
  char *compiled_expression;
  unsigned long *refCount;
}
RegExp_Arg;

/* Maximum Length we allow for a compiled regular expression */
#define MAX_RX_LEN   (2048)
#define RX_INCREMENT (256)

#endif

/*---------------------------------------------------------------------------
|   Facility      :  libnform
|   Function      :  static void *Make_RegularExpression_Type(va_list * ap)
|
|   Description   :  Allocate structure for regex type argument.
|
|   Return Values :  Pointer to argument structure or NULL on error
+--------------------------------------------------------------------------*/
static void *
Make_RegularExpression_Type(va_list *ap)
{
#if HAVE_REGEX_H_FUNCS
  char *rx = va_arg(*ap, char *);
  RegExp_Arg *preg;

  preg = typeMalloc(RegExp_Arg, 1);

  if (preg)
    {
      T((T_CREATE("RegExp_Arg %p"), preg));
      if (((preg->pRegExp = typeMalloc(regex_t, 1)) != 0)
	  && !regcomp(preg->pRegExp, rx,
		      (REG_EXTENDED | REG_NOSUB | REG_NEWLINE)))
	{
	  T((T_CREATE("regex_t %p"), preg->pRegExp));
	  preg->refCount = typeMalloc(unsigned long, 1);

	  *(preg->refCount) = 1;
	}
      else
	{
	  if (preg->pRegExp)
	    free(preg->pRegExp);
	  free(preg);
	  preg = (RegExp_Arg *)0;
	}
    }
  return ((void *)preg);
#elif HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS
  char *rx = va_arg(*ap, char *);
  RegExp_Arg *pArg;

  pArg = typeMalloc(RegExp_Arg, 1);

  if (pArg)
    {
      int blen = RX_INCREMENT;

      T((T_CREATE("RegExp_Arg %p"), pArg));
      pArg->compiled_expression = NULL;
      pArg->refCount = typeMalloc(unsigned long, 1);

      *(pArg->refCount) = 1;

      do
	{
	  char *buf = typeMalloc(char, blen);

	  if (buf)
	    {
#if HAVE_REGEXP_H_FUNCS
	      char *last_pos = compile(rx, buf, &buf[blen], '\0');

#else /* HAVE_REGEXPR_H_FUNCS */
	      char *last_pos = compile(rx, buf, &buf[blen]);
#endif
	      if (reg_errno)
		{
		  free(buf);
		  if (reg_errno == 50)
		    blen += RX_INCREMENT;
		  else
		    {
		      free(pArg);
		      pArg = NULL;
		      break;
		    }
		}
	      else
		{
		  pArg->compiled_expression = buf;
		  break;
		}
	    }
	}
      while (blen <= MAX_RX_LEN);
    }
  if (pArg && !pArg->compiled_expression)
    {
      free(pArg);
      pArg = NULL;
    }
  return (void *)pArg;
#else
  return 0;
#endif
}

/*---------------------------------------------------------------------------
|   Facility      :  libnform
|   Function      :  static void *Copy_RegularExpression_Type(
|                                      const void * argp)
|
|   Description   :  Copy structure for regex type argument.
|
|   Return Values :  Pointer to argument structure or NULL on error.
+--------------------------------------------------------------------------*/
static void *
Copy_RegularExpression_Type(const void *argp)
{
#if (HAVE_REGEX_H_FUNCS | HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS)
  const RegExp_Arg *ap = (const RegExp_Arg *)argp;
  const RegExp_Arg *result = (const RegExp_Arg *)0;

  if (ap)
    {
      *(ap->refCount) += 1;
      result = ap;
    }
  return (void *)result;
#else
  return 0;
#endif
}

/*---------------------------------------------------------------------------
|   Facility      :  libnform
|   Function      :  static void Free_RegularExpression_Type(void * argp)
|
|   Description   :  Free structure for regex type argument.
|
|   Return Values :  -
+--------------------------------------------------------------------------*/
static void
Free_RegularExpression_Type(void *argp)
{
#if HAVE_REGEX_H_FUNCS | HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS
  RegExp_Arg *ap = (RegExp_Arg *)argp;

  if (ap)
    {
      if (--(*(ap->refCount)) == 0)
	{
#if HAVE_REGEX_H_FUNCS
	  if (ap->pRegExp)
	    {
	      free(ap->refCount);
	      regfree(ap->pRegExp);
	    }
#elif HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS
	  if (ap->compiled_expression)
	    {
	      free(ap->refCount);
	      free(ap->compiled_expression);
	    }
#endif
	  free(ap);
	}
    }
#endif
}

/*---------------------------------------------------------------------------
|   Facility      :  libnform
|   Function      :  static bool Check_RegularExpression_Field(
|                                      FIELD * field,
|                                      const void  * argp)
|
|   Description   :  Validate buffer content to be a valid regular expression
|
|   Return Values :  TRUE  - field is valid
|                    FALSE - field is invalid
+--------------------------------------------------------------------------*/
static bool
Check_RegularExpression_Field(FIELD *field, const void *argp)
{
  bool match = FALSE;

#if HAVE_REGEX_H_FUNCS
  const RegExp_Arg *ap = (const RegExp_Arg *)argp;

  if (ap && ap->pRegExp)
    match = (regexec(ap->pRegExp, field_buffer(field, 0), 0, NULL, 0)
	     ? FALSE
	     : TRUE);
#elif HAVE_REGEXP_H_FUNCS | HAVE_REGEXPR_H_FUNCS
  RegExp_Arg *ap = (RegExp_Arg *)argp;

  if (ap && ap->compiled_expression)
    match = (step(field_buffer(field, 0), ap->compiled_expression)
	     ? TRUE
	     : FALSE);
#endif
  return match;
}

static FIELDTYPE typeREGEXP =
{
  _HAS_ARGS | _RESIDENT,
  1,				/* this is mutable, so we can't be const */
  (FIELDTYPE *)0,
  (FIELDTYPE *)0,
  Make_RegularExpression_Type,
  Copy_RegularExpression_Type,
  Free_RegularExpression_Type,
  Check_RegularExpression_Field,
  NULL,
  NULL,
  NULL
};

NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_REGEXP = &typeREGEXP;

/* fty_regex.c ends here */


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: fty_regex.c,v 1.9 2015/01/23 22:48:51 krw Exp $ */
2			/****************************************************************************
3			* Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. *
4			* *
5			* Permission is hereby granted, free of charge, to any person obtaining a *
6			* copy of this software and associated documentation files (the *
7			* "Software"), to deal in the Software without restriction, including *
8			* without limitation the rights to use, copy, modify, merge, publish, *
9			* distribute, distribute with modifications, sublicense, and/or sell *
10			* copies of the Software, and to permit persons to whom the Software is *
11			* furnished to do so, subject to the following conditions: *
12			* *
13			* The above copyright notice and this permission notice shall be included *
14			* in all copies or substantial portions of the Software. *
15			* *
16			* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17			* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18			* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19			* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20			* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21			* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22			* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23			* *
24			* Except as contained in this notice, the name(s) of the above copyright *
25			* holders shall not be used in advertising or otherwise to promote the *
26			* sale, use or other dealings in this Software without prior written *
27			* authorization. *
28			****************************************************************************/
29
30			/***************************************************************************
31			* *
32			* Author : Juergen Pfeifer *
33			* *
34			***************************************************************************/
35
36			#include "form.priv.h"
37
38			MODULE_ID("$Id: fty_regex.c,v 1.9 2015/01/23 22:48:51 krw Exp $")
39
40			#if HAVE_REGEX_H_FUNCS /* We prefer POSIX regex */
41			#include <regex.h>
42
43			typedef struct
44			{
45			regex_t *pRegExp;
46			unsigned long *refCount;
47			}
48			RegExp_Arg;
49
50			#elif HAVE_REGEXP_H_FUNCS \| HAVE_REGEXPR_H_FUNCS
51			#undef RETURN
52			static int reg_errno;
53
54			static char *
55			RegEx_Init(char *instring)
56			{
57			reg_errno = 0;
58			return instring;
59			}
60
61			static char *
62			RegEx_Error(int code)
63			{
64			reg_errno = code;
65			return 0;
66			}
67
68			#define INIT register char *sp = RegEx_Init(instring);
69			#define GETC() (*sp++)
70			#define PEEKC() (*sp)
71			#define UNGETC(c) (--sp)
72			#define RETURN(c) return(c)
73			#define ERROR(c) return RegEx_Error(c)
74
75			#if HAVE_REGEXP_H_FUNCS
76			#include <regexp.h>
77			#else
78			#include <regexpr.h>
79			#endif
80
81			typedef struct
82			{
83			char *compiled_expression;
84			unsigned long *refCount;
85			}
86			RegExp_Arg;
87
88			/* Maximum Length we allow for a compiled regular expression */
89			#define MAX_RX_LEN (2048)
90			#define RX_INCREMENT (256)
91
92			#endif
93
94			/*---------------------------------------------------------------------------
95			\| Facility : libnform
96			\| Function : static void Make_RegularExpression_Type(va_list ap)
97			\|
98			\| Description : Allocate structure for regex type argument.
99			\|
100			\| Return Values : Pointer to argument structure or NULL on error
101			+--------------------------------------------------------------------------*/
102			static void *
103			Make_RegularExpression_Type(va_list *ap)
104			{
105			#if HAVE_REGEX_H_FUNCS
106			char rx = va_arg(ap, char *);
107			RegExp_Arg *preg;
108
109			preg = typeMalloc(RegExp_Arg, 1);
110
111			if (preg)
112			{
113			T((T_CREATE("RegExp_Arg %p"), preg));
114			if (((preg->pRegExp = typeMalloc(regex_t, 1)) != 0)
115			&& !regcomp(preg->pRegExp, rx,
116			(REG_EXTENDED \| REG_NOSUB \| REG_NEWLINE)))
117			{
118			T((T_CREATE("regex_t %p"), preg->pRegExp));
119			preg->refCount = typeMalloc(unsigned long, 1);
120
121			*(preg->refCount) = 1;
122			}
123			else
124			{
125			if (preg->pRegExp)
126			free(preg->pRegExp);
127			free(preg);
128			preg = (RegExp_Arg *)0;
129			}
130			}
131			return ((void *)preg);
132			#elif HAVE_REGEXP_H_FUNCS \| HAVE_REGEXPR_H_FUNCS
133			char rx = va_arg(ap, char *);
134			RegExp_Arg *pArg;
135
136			pArg = typeMalloc(RegExp_Arg, 1);
137
138			if (pArg)
139			{
140			int blen = RX_INCREMENT;
141
142			T((T_CREATE("RegExp_Arg %p"), pArg));
143			pArg->compiled_expression = NULL;
144			pArg->refCount = typeMalloc(unsigned long, 1);
145
146			*(pArg->refCount) = 1;
147
148			do
149			{
150			char *buf = typeMalloc(char, blen);
151
152			if (buf)
153			{
154			#if HAVE_REGEXP_H_FUNCS
155			char *last_pos = compile(rx, buf, &buf[blen], '\0');
156
157			#else /* HAVE_REGEXPR_H_FUNCS */
158			char *last_pos = compile(rx, buf, &buf[blen]);
159			#endif
160			if (reg_errno)
161			{
162			free(buf);
163			if (reg_errno == 50)
164			blen += RX_INCREMENT;
165			else
166			{
167			free(pArg);
168			pArg = NULL;
169			break;
170			}
171			}
172			else
173			{
174			pArg->compiled_expression = buf;
175			break;
176			}
177			}
178			}
179			while (blen <= MAX_RX_LEN);
180			}
181			if (pArg && !pArg->compiled_expression)
182			{
183			free(pArg);
184			pArg = NULL;
185			}
186			return (void *)pArg;
187			#else
188			return 0;
189			#endif
190			}
191
192			/*---------------------------------------------------------------------------
193			\| Facility : libnform
194			\| Function : static void *Copy_RegularExpression_Type(
195			\| const void * argp)
196			\|
197			\| Description : Copy structure for regex type argument.
198			\|
199			\| Return Values : Pointer to argument structure or NULL on error.
200			+--------------------------------------------------------------------------*/
201			static void *
202			Copy_RegularExpression_Type(const void *argp)
203			{
204			#if (HAVE_REGEX_H_FUNCS \| HAVE_REGEXP_H_FUNCS \| HAVE_REGEXPR_H_FUNCS)
205			const RegExp_Arg ap = (const RegExp_Arg )argp;
206			const RegExp_Arg result = (const RegExp_Arg )0;
207
208			if (ap)
209			{
210			*(ap->refCount) += 1;
211			result = ap;
212			}
213			return (void *)result;
214			#else
215			return 0;
216			#endif
217			}
218
219			/*---------------------------------------------------------------------------
220			\| Facility : libnform
221			\| Function : static void Free_RegularExpression_Type(void * argp)
222			\|
223			\| Description : Free structure for regex type argument.
224			\|
225			\| Return Values : -
226			+--------------------------------------------------------------------------*/
227			static void
228			Free_RegularExpression_Type(void *argp)
229			{
230			#if HAVE_REGEX_H_FUNCS \| HAVE_REGEXP_H_FUNCS \| HAVE_REGEXPR_H_FUNCS
231			RegExp_Arg ap = (RegExp_Arg )argp;
232
233			if (ap)
234			{
235			if (--(*(ap->refCount)) == 0)
236			{
237			#if HAVE_REGEX_H_FUNCS
238			if (ap->pRegExp)
239			{
240			free(ap->refCount);
241			regfree(ap->pRegExp);
242			}
243			#elif HAVE_REGEXP_H_FUNCS \| HAVE_REGEXPR_H_FUNCS
244			if (ap->compiled_expression)
245			{
246			free(ap->refCount);
247			free(ap->compiled_expression);
248			}
249			#endif
250			free(ap);
251			}
252			}
253			#endif
254			}
255
256			/*---------------------------------------------------------------------------
257			\| Facility : libnform
258			\| Function : static bool Check_RegularExpression_Field(
259			\| FIELD * field,
260			\| const void * argp)
261			\|
262			\| Description : Validate buffer content to be a valid regular expression
263			\|
264			\| Return Values : TRUE - field is valid
265			\| FALSE - field is invalid
266			+--------------------------------------------------------------------------*/
267			static bool
268			Check_RegularExpression_Field(FIELD field, const void argp)
269			{
270			bool match = FALSE;
271
272			#if HAVE_REGEX_H_FUNCS
273			const RegExp_Arg ap = (const RegExp_Arg )argp;
274
275			if (ap && ap->pRegExp)
276			match = (regexec(ap->pRegExp, field_buffer(field, 0), 0, NULL, 0)
277			? FALSE
278			: TRUE);
279			#elif HAVE_REGEXP_H_FUNCS \| HAVE_REGEXPR_H_FUNCS
280			RegExp_Arg ap = (RegExp_Arg )argp;
281
282			if (ap && ap->compiled_expression)
283			match = (step(field_buffer(field, 0), ap->compiled_expression)
284			? TRUE
285			: FALSE);
286			#endif
287			return match;
288			}
289
290			static FIELDTYPE typeREGEXP =
291			{
292			_HAS_ARGS \| _RESIDENT,
293			1, /* this is mutable, so we can't be const */
294			(FIELDTYPE *)0,
295			(FIELDTYPE *)0,
296			Make_RegularExpression_Type,
297			Copy_RegularExpression_Type,
298			Free_RegularExpression_Type,
299			Check_RegularExpression_Field,
300			NULL,
301			NULL,
302			NULL
303			};
304
305			NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_REGEXP = &typeREGEXP;
306
307			/* fty_regex.c ends here */