Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcurses/tinfo/lib_tgoto.c	Lines:	11	82	13.4 %
Date:	2017-11-07	Branches:	10	57	17.5 %


/* $OpenBSD: lib_tgoto.c,v 1.6 2010/01/14 22:53:22 nicm Exp $ */

/****************************************************************************
 * Copyright (c) 2000-2006,2008 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 <termcap.h>

MODULE_ID("$Id: lib_tgoto.c,v 1.6 2010/01/14 22:53:22 nicm Exp $")

#if !PURE_TERMINFO
static bool
is_termcap(const char *string)
{
    bool result = TRUE;

    if (string == 0 || *string == '\0') {
	result = FALSE;		/* tparm() handles empty strings */
    } else {
	while ((*string != '\0') && result) {
	    if (*string == '%') {
		switch (*++string) {
		case 'p':
		    result = FALSE;
		    break;
		case '\0':
		    string--;
		    break;
		}
	    } else if (string[0] == '$' && string[1] == '<') {
		result = FALSE;
	    }
	    string++;
	}
    }
    return result;
}

static char *
tgoto_internal(const char *string, int x, int y)
{
    static char *result;
    static size_t length;

    int swap_arg;
    int param[3];
    size_t used = 0;
    size_t need = 10;
    size_t copied;
    int *value = param;
    bool need_BC = FALSE;

    if (BC)
	need += strlen(BC);

    param[0] = y;
    param[1] = x;
    param[2] = 0;

    while (*string != 0) {
	if ((used + need) > length) {
	    length += (used + need);
	    if ((result = typeRealloc(char, length, result)) == 0) {
		length = 0;
		break;
	    }
	}
	if (*string == '%') {
	    const char *fmt = 0;

	    switch (*++string) {
	    case '\0':
		string--;
		break;
	    case 'd':
		fmt = "%d";
		break;
	    case '2':
		fmt = "%02d";
		*value %= 100;
		break;
	    case '3':
		fmt = "%03d";
		*value %= 1000;
		break;
	    case '+':
		*value += UChar(*++string);
		/* FALLTHRU */
	    case '.':
		/*
		 * Guard against tputs() seeing a truncated string.  The
		 * termcap documentation refers to a similar fixup for \n
		 * and \r, but I don't see that it could work -TD
		 */
		if (*value == 0) {
		    if (BC != 0) {
			*value += 1;
			need_BC = TRUE;
		    } else {
			*value = 0200;	/* tputs will treat this as \0 */
		    }
		}
		result[used++] = (char) *value++;
		break;
	    case '%':
		result[used++] = *string;
		break;
	    case 'r':
		swap_arg = param[0];
		param[0] = param[1];
		param[1] = swap_arg;
		break;
	    case 'i':
		param[0] += 1;
		param[1] += 1;
		break;
	    case '>':
		if (*value > string[1])
		    *value += string[2];
		string += 2;
		break;
	    case 'n':		/* Datamedia 2500 */
		param[0] ^= 0140;
		param[1] ^= 0140;
		break;
	    case 'B':		/* BCD */
		*value = 16 * (*value / 10) + (*value % 10);
		break;
	    case 'D':		/* Reverse coding (Delta Data) */
		*value -= 2 * (*value % 16);
		break;
	    }
	    if (fmt != 0) {
		snprintf(result + used, length - used, fmt, *value++);
		used += strlen(result + used);
		fmt = 0;
	    }
	    if (value - param > 2) {
		value = param + 2;
		*value = 0;
	    }
	} else {
	    result[used++] = *string;
	}
	string++;
    }
    if (result != 0) {
	if (need_BC) {
	    copied = strlcpy(result + used, BC, length - used);
	    if (copied < length - used)
		used += copied;
	    else
		used += length - used - 1;
	}
	result[used] = '\0';
    }
    return result;
}
#endif

/*
 * Retained solely for upward compatibility.  Note the intentional reversing of
 * the last two arguments when invoking tparm().
 */
NCURSES_EXPORT(char *)
tgoto(const char *string, int x, int y)
{
    char *result;

    T((T_CALLED("tgoto(%s, %d, %d)"), _nc_visbuf(string), x, y));
#if !PURE_TERMINFO
    if (is_termcap(string))
	result = tgoto_internal(string, x, y);
    else
#endif
	result = TPARM_2((NCURSES_CONST char *) string, y, x);
    returnPtr(result);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: lib_tgoto.c,v 1.6 2010/01/14 22:53:22 nicm Exp $ */
2
3			/****************************************************************************
4			* Copyright (c) 2000-2006,2008 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 <termcap.h>
39
40			MODULE_ID("$Id: lib_tgoto.c,v 1.6 2010/01/14 22:53:22 nicm Exp $")
41
42			#if !PURE_TERMINFO
43			static bool
44			is_termcap(const char *string)
45			{
46			bool result = TRUE;
47
48	✓✗✗✓	12564	if (string == 0 \|\| *string == '\0') {
49			result = FALSE; /* tparm() handles empty strings */
50			} else {
51	✓✓	36522	while ((*string != '\0') && result) {
52	✓✓	16167	if (*string == '%') {
53	✓✗✓	20311	switch (*++string) {
54			case 'p':
55			result = FALSE;
56		4188	break;
57			case '\0':
58			string--;
59			break;
60			}
61	✗✓✗✗	8835	} else if (string[0] == '$' && string[1] == '<') {
62			result = FALSE;
63			}
64		16167	string++;
65			}
66			}
67		4188	return result;
68			}
69
70			static char *
71			tgoto_internal(const char *string, int x, int y)
72			{
73			static char *result;
74			static size_t length;
75
76			int swap_arg;
77			int param[3];
78			size_t used = 0;
79			size_t need = 10;
80			size_t copied;
81			int *value = param;
82			bool need_BC = FALSE;
83
84			if (BC)
85			need += strlen(BC);
86
87			param[0] = y;
88			param[1] = x;
89			param[2] = 0;
90
91			while (*string != 0) {
92			if ((used + need) > length) {
93			length += (used + need);
94			if ((result = typeRealloc(char, length, result)) == 0) {
95			length = 0;
96			break;
97			}
98			}
99			if (*string == '%') {
100			const char *fmt = 0;
101
102			switch (*++string) {
103			case '\0':
104			string--;
105			break;
106			case 'd':
107			fmt = "%d";
108			break;
109			case '2':
110			fmt = "%02d";
111			*value %= 100;
112			break;
113			case '3':
114			fmt = "%03d";
115			*value %= 1000;
116			break;
117			case '+':
118			value += UChar(++string);
119			/* FALLTHRU */
120			case '.':
121			/*
122			* Guard against tputs() seeing a truncated string. The
123			* termcap documentation refers to a similar fixup for \n
124			* and \r, but I don't see that it could work -TD
125			*/
126			if (*value == 0) {
127			if (BC != 0) {
128			*value += 1;
129			need_BC = TRUE;
130			} else {
131			value = 0200; / tputs will treat this as \0 */
132			}
133			}
134			result[used++] = (char) *value++;
135			break;
136			case '%':
137			result[used++] = *string;
138			break;
139			case 'r':
140			swap_arg = param[0];
141			param[0] = param[1];
142			param[1] = swap_arg;
143			break;
144			case 'i':
145			param[0] += 1;
146			param[1] += 1;
147			break;
148			case '>':
149			if (*value > string[1])
150			*value += string[2];
151			string += 2;
152			break;
153			case 'n': /* Datamedia 2500 */
154			param[0] ^= 0140;
155			param[1] ^= 0140;
156			break;
157			case 'B': /* BCD */
158			value = 16 (value / 10) + (value % 10);
159			break;
160			case 'D': /* Reverse coding (Delta Data) */
161			value -= 2 (*value % 16);
162			break;
163			}
164			if (fmt != 0) {
165			snprintf(result + used, length - used, fmt, *value++);
166			used += strlen(result + used);
167			fmt = 0;
168			}
169			if (value - param > 2) {
170			value = param + 2;
171			*value = 0;
172			}
173			} else {
174			result[used++] = *string;
175			}
176			string++;
177			}
178			if (result != 0) {
179			if (need_BC) {
180			copied = strlcpy(result + used, BC, length - used);
181			if (copied < length - used)
182			used += copied;
183			else
184			used += length - used - 1;
185			}
186			result[used] = '\0';
187			}
188			return result;
189			}
190			#endif
191
192			/*
193			* Retained solely for upward compatibility. Note the intentional reversing of
194			* the last two arguments when invoking tparm().
195			*/
196			NCURSES_EXPORT(char *)
197			tgoto(const char *string, int x, int y)
198			{
199			char *result;
200
201			T((T_CALLED("tgoto(%s, %d, %d)"), _nc_visbuf(string), x, y));
202			#if !PURE_TERMINFO
203	✗✓	8376	if (is_termcap(string))
204			result = tgoto_internal(string, x, y);
205			else
206			#endif
207		4188	result = TPARM_2((NCURSES_CONST char *) string, y, x);
208		4188	returnPtr(result);
209			}