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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcurses/tinfo/access.c	Lines:	13	34	38.2 %
Date:	2017-11-13	Branches:	5	24	20.8 %


/* $OpenBSD: access.c,v 1.5 2010/01/12 23:22:06 nicm 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: Thomas E. Dickey                                                *
 ****************************************************************************/

#include <curses.priv.h>

#include <ctype.h>
#include <sys/stat.h>

#include <tic.h>
#include <nc_alloc.h>

MODULE_ID("$Id: access.c,v 1.5 2010/01/12 23:22:06 nicm Exp $")

#define LOWERCASE(c) ((isalpha(UChar(c)) && isupper(UChar(c))) ? tolower(UChar(c)) : (c))

NCURSES_EXPORT(char *)
_nc_rootname(char *path)
{
    char *result = _nc_basename(path);
#if !MIXEDCASE_FILENAMES || defined(PROG_EXT)
    static char *temp;
    char *s;

    temp = strdup(result);
    result = temp;
#if !MIXEDCASE_FILENAMES
    for (s = result; *s != '\0'; ++s) {
	*s = LOWERCASE(*s);
    }
#endif
#if defined(PROG_EXT)
    if ((s = strrchr(result, '.')) != 0) {
	if (!strcmp(s, PROG_EXT))
	    *s = '\0';
    }
#endif
#endif
    return result;
}

/*
 * Check if a string appears to be an absolute pathname.
 */
NCURSES_EXPORT(bool)
_nc_is_abs_path(const char *path)
{
#if defined(__EMX__) || defined(__DJGPP__)
#define is_pathname(s) ((((s) != 0) && ((s)[0] == '/')) \
		  || (((s)[0] != 0) && ((s)[1] == ':')))
#else
#define is_pathname(s) ((s) != 0 && (s)[0] == '/')
#endif
    return is_pathname(path);
}

/*
 * Return index of the basename
 */
NCURSES_EXPORT(unsigned)
_nc_pathlast(const char *path)
{
    const char *test = strrchr(path, '/');
#ifdef __EMX__
    if (test == 0)
	test = strrchr(path, '\\');
#endif
    if (test == 0)
	test = path;
    else
	test++;
    return (test - path);
}

NCURSES_EXPORT(char *)
_nc_basename(char *path)
{
    return path + _nc_pathlast(path);
}

NCURSES_EXPORT(int)
_nc_access(const char *path, int mode)
{
    if (access(path, mode) < 0) {
	if ((mode & W_OK) != 0
	    && errno == ENOENT
	    && strlen(path) < PATH_MAX) {
	    char *leaf, head[PATH_MAX];

            strlcpy(head, path, sizeof(head));
            if ((leaf = _nc_basename(head)) == 0)
		    leaf = head;
            *leaf = '\0';
	    if (head == leaf)
		(void) strlcpy(head, ".", sizeof(head));

	    return access(head, R_OK | W_OK | X_OK);
	}
	return -1;
    }
    return 0;
}

NCURSES_EXPORT(bool)
_nc_is_dir_path(const char *path)
{
    bool result = FALSE;
    struct stat sb;

    if (stat(path, &sb) == 0
	&& (sb.st_mode & S_IFMT) == S_IFDIR) {
	result = TRUE;
    }
    return result;
}

NCURSES_EXPORT(bool)
_nc_is_file_path(const char *path)
{
    bool result = FALSE;
    struct stat sb;

    if (stat(path, &sb) == 0
	&& (sb.st_mode & S_IFMT) == S_IFREG) {
	result = TRUE;
    }
    return result;
}

#ifndef USE_ROOT_ENVIRON
/*
 * Returns true if we allow application to use environment variables that are
 * used for searching lists of directories, etc.
 */
NCURSES_EXPORT(int)
_nc_env_access(void)
{
#if HAVE_ISSETUGID
    if (issetugid())
	return FALSE;
#elif HAVE_GETEUID && HAVE_GETEGID
    if (getuid() != geteuid()
	|| getgid() != getegid())
	return FALSE;
#endif
    return getuid() != 0 && geteuid() != 0;	/* ...finally, disallow root */
}
#endif


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: access.c,v 1.5 2010/01/12 23:22:06 nicm Exp $ */
2
3			/****************************************************************************
4			* Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. *
5			* *
6			* Permission is hereby granted, free of charge, to any person obtaining a *
7			* copy of this software and associated documentation files (the *
8			* "Software"), to deal in the Software without restriction, including *
9			* without limitation the rights to use, copy, modify, merge, publish, *
10			* distribute, distribute with modifications, sublicense, and/or sell *
11			* copies of the Software, and to permit persons to whom the Software is *
12			* furnished to do so, subject to the following conditions: *
13			* *
14			* The above copyright notice and this permission notice shall be included *
15			* in all copies or substantial portions of the Software. *
16			* *
17			* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
18			* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
19			* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
20			* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
21			* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
22			* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
23			* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24			* *
25			* Except as contained in this notice, the name(s) of the above copyright *
26			* holders shall not be used in advertising or otherwise to promote the *
27			* sale, use or other dealings in this Software without prior written *
28			* authorization. *
29			****************************************************************************/
30
31			/****************************************************************************
32			* Author: Thomas E. Dickey *
33			****************************************************************************/
34
35			#include <curses.priv.h>
36
37			#include <ctype.h>
38			#include <sys/stat.h>
39
40			#include <tic.h>
41			#include <nc_alloc.h>
42
43			MODULE_ID("$Id: access.c,v 1.5 2010/01/12 23:22:06 nicm Exp $")
44
45			#define LOWERCASE(c) ((isalpha(UChar(c)) && isupper(UChar(c))) ? tolower(UChar(c)) : (c))
46
47			NCURSES_EXPORT(char *)
48			_nc_rootname(char *path)
49			{
50			char *result = _nc_basename(path);
51			#if !MIXEDCASE_FILENAMES \|\| defined(PROG_EXT)
52			static char *temp;
53			char *s;
54
55			temp = strdup(result);
56			result = temp;
57			#if !MIXEDCASE_FILENAMES
58			for (s = result; *s != '\0'; ++s) {
59			s = LOWERCASE(s);
60			}
61			#endif
62			#if defined(PROG_EXT)
63			if ((s = strrchr(result, '.')) != 0) {
64			if (!strcmp(s, PROG_EXT))
65			*s = '\0';
66			}
67			#endif
68			#endif
69			return result;
70			}
71
72			/*
73			* Check if a string appears to be an absolute pathname.
74			*/
75			NCURSES_EXPORT(bool)
76			_nc_is_abs_path(const char *path)
77			{
78			#if defined(__EMX__) \|\| defined(__DJGPP__)
79			#define is_pathname(s) ((((s) != 0) && ((s)[0] == '/')) \
80			\|\| (((s)[0] != 0) && ((s)[1] == ':')))
81			#else
82			#define is_pathname(s) ((s) != 0 && (s)[0] == '/')
83			#endif
84			return is_pathname(path);
85			}
86
87			/*
88			* Return index of the basename
89			*/
90			NCURSES_EXPORT(unsigned)
91			_nc_pathlast(const char *path)
92			{
93		6	const char *test = strrchr(path, '/');
94			#ifdef __EMX__
95			if (test == 0)
96			test = strrchr(path, '\\');
97			#endif
98	✓✗	3	if (test == 0)
99		3	test = path;
100			else
101			test++;
102		3	return (test - path);
103			}
104
105			NCURSES_EXPORT(char *)
106			_nc_basename(char *path)
107			{
108			return path + _nc_pathlast(path);
109			}
110
111			NCURSES_EXPORT(int)
112			_nc_access(const char *path, int mode)
113			{
114	✗✓	6	if (access(path, mode) < 0) {
115			if ((mode & W_OK) != 0
116			&& errno == ENOENT
117			&& strlen(path) < PATH_MAX) {
118			char *leaf, head[PATH_MAX];
119
120			strlcpy(head, path, sizeof(head));
121			if ((leaf = _nc_basename(head)) == 0)
122			leaf = head;
123			*leaf = '\0';
124			if (head == leaf)
125			(void) strlcpy(head, ".", sizeof(head));
126
127			return access(head, R_OK \| W_OK \| X_OK);
128			}
129			return -1;
130			}
131		3	return 0;
132		3	}
133
134			NCURSES_EXPORT(bool)
135			_nc_is_dir_path(const char *path)
136			{
137			bool result = FALSE;
138		12	struct stat sb;
139
140	✓✗	9	if (stat(path, &sb) == 0
141	✓✓	9	&& (sb.st_mode & S_IFMT) == S_IFDIR) {
142			result = TRUE;
143		3	}
144		12	return result;
145		6	}
146
147			NCURSES_EXPORT(bool)
148			_nc_is_file_path(const char *path)
149			{
150			bool result = FALSE;
151			struct stat sb;
152
153			if (stat(path, &sb) == 0
154			&& (sb.st_mode & S_IFMT) == S_IFREG) {
155			result = TRUE;
156			}
157			return result;
158			}
159
160			#ifndef USE_ROOT_ENVIRON
161			/*
162			* Returns true if we allow application to use environment variables that are
163			* used for searching lists of directories, etc.
164			*/
165			NCURSES_EXPORT(int)
166			_nc_env_access(void)
167			{
168			#if HAVE_ISSETUGID
169			if (issetugid())
170			return FALSE;
171			#elif HAVE_GETEUID && HAVE_GETEGID
172			if (getuid() != geteuid()
173			\|\| getgid() != getegid())
174			return FALSE;
175			#endif
176			return getuid() != 0 && geteuid() != 0; /* ...finally, disallow root */
177			}
178			#endif