File: | src/xlibi18n/utf8Wrap.c |
Location: | line 106, column 10 |
Description: | Access to field 'methods' results in a dereference of a null pointer (loaded from variable 'fs') |
1 | /* | |||
2 | ||||
3 | Copyright 1991, 1998 The Open Group | |||
4 | ||||
5 | Permission to use, copy, modify, distribute, and sell this software and its | |||
6 | documentation for any purpose is hereby granted without fee, provided that | |||
7 | the above copyright notice appear in all copies and that both that | |||
8 | copyright notice and this permission notice appear in supporting | |||
9 | documentation. | |||
10 | ||||
11 | The above copyright notice and this permission notice shall be included | |||
12 | in all copies or substantial portions of the Software. | |||
13 | ||||
14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |||
15 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |||
16 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |||
17 | IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR | |||
18 | OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |||
19 | ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |||
20 | OTHER DEALINGS IN THE SOFTWARE. | |||
21 | ||||
22 | Except as contained in this notice, the name of The Open Group shall | |||
23 | not be used in advertising or otherwise to promote the sale, use or | |||
24 | other dealings in this Software without prior written authorization | |||
25 | from The Open Group. | |||
26 | ||||
27 | */ | |||
28 | /* | |||
29 | * Copyright 1991 by the Open Software Foundation | |||
30 | * | |||
31 | * Permission to use, copy, modify, distribute, and sell this software and its | |||
32 | * documentation for any purpose is hereby granted without fee, provided that | |||
33 | * the above copyright notice appear in all copies and that both that | |||
34 | * copyright notice and this permission notice appear in supporting | |||
35 | * documentation, and that the name of Open Software Foundation | |||
36 | * not be used in advertising or publicity pertaining to distribution of the | |||
37 | * software without specific, written prior permission. Open Software | |||
38 | * Foundation makes no representations about the suitability of this | |||
39 | * software for any purpose. It is provided "as is" without express or | |||
40 | * implied warranty. | |||
41 | * | |||
42 | * OPEN SOFTWARE FOUNDATION DISCLAIMS ALL WARRANTIES WITH REGARD TO | |||
43 | * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND | |||
44 | * FITNESS, IN NO EVENT SHALL OPEN SOFTWARE FOUNDATIONN BE | |||
45 | * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |||
46 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |||
47 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |||
48 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |||
49 | * | |||
50 | * M. Collins OSF | |||
51 | */ | |||
52 | /* | |||
53 | * Copyright 2000 by Bruno Haible | |||
54 | * | |||
55 | * Permission to use, copy, modify, distribute, and sell this software | |||
56 | * and its documentation for any purpose is hereby granted without fee, | |||
57 | * provided that the above copyright notice appear in all copies and | |||
58 | * that both that copyright notice and this permission notice appear | |||
59 | * in supporting documentation, and that the name of Bruno Haible not | |||
60 | * be used in advertising or publicity pertaining to distribution of the | |||
61 | * software without specific, written prior permission. Bruno Haible | |||
62 | * makes no representations about the suitability of this software for | |||
63 | * any purpose. It is provided "as is" without express or implied | |||
64 | * warranty. | |||
65 | * | |||
66 | * Bruno Haible DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |||
67 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN | |||
68 | * NO EVENT SHALL Bruno Haible BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |||
69 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS | |||
70 | * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE | |||
71 | * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE | |||
72 | * OR PERFORMANCE OF THIS SOFTWARE. | |||
73 | */ | |||
74 | ||||
75 | #ifdef HAVE_CONFIG_H1 | |||
76 | #include <config.h> | |||
77 | #endif | |||
78 | #include "Xlibint.h" | |||
79 | #include "Xlcint.h" | |||
80 | ||||
81 | void | |||
82 | Xutf8DrawText( | |||
83 | Display *dpy, | |||
84 | Drawable d, | |||
85 | GC gc, | |||
86 | int x, | |||
87 | int y, | |||
88 | XmbTextItem *text_items, | |||
89 | int nitems) | |||
90 | { | |||
91 | register XFontSet fs = NULL((void*)0); | |||
| ||||
92 | register XmbTextItem *p = text_items; | |||
93 | register int i = nitems; | |||
94 | register int esc; | |||
95 | ||||
96 | /* ignore leading items with no fontset */ | |||
97 | while (i && !p->font_set) { | |||
98 | i--; | |||
99 | p++; | |||
100 | } | |||
101 | ||||
102 | for (; --i >= 0; p++) { | |||
103 | if (p->font_set) | |||
104 | fs = p->font_set; | |||
105 | x += p->delta; | |||
106 | esc = (*fs->methods->utf8_draw_string) (dpy, d, fs, gc, x, y, | |||
| ||||
107 | p->chars, p->nchars); | |||
108 | if (!esc) | |||
109 | esc = fs->methods->utf8_escapement (fs, p->chars, p->nchars); | |||
110 | x += esc; | |||
111 | } | |||
112 | } | |||
113 | ||||
114 | void | |||
115 | Xutf8DrawString( | |||
116 | Display *dpy, | |||
117 | Drawable d, | |||
118 | XFontSet font_set, | |||
119 | GC gc, | |||
120 | int x, | |||
121 | int y, | |||
122 | _Xconstconst char *text, | |||
123 | int text_len) | |||
124 | { | |||
125 | (void)(*font_set->methods->utf8_draw_string) (dpy, d, font_set, gc, x, y, | |||
126 | text, text_len); | |||
127 | } | |||
128 | ||||
129 | ||||
130 | void | |||
131 | Xutf8DrawImageString( | |||
132 | Display *dpy, | |||
133 | Drawable d, | |||
134 | XFontSet font_set, | |||
135 | GC gc, | |||
136 | int x, | |||
137 | int y, | |||
138 | _Xconstconst char *text, | |||
139 | int text_len) | |||
140 | { | |||
141 | (*font_set->methods->utf8_draw_image_string) (dpy, d, font_set, gc, x, y, | |||
142 | text, text_len); | |||
143 | } | |||
144 | ||||
145 | int | |||
146 | Xutf8TextEscapement( | |||
147 | XFontSet font_set, | |||
148 | _Xconstconst char *text, | |||
149 | int text_len) | |||
150 | { | |||
151 | return (*font_set->methods->utf8_escapement) (font_set, text, text_len); | |||
152 | } | |||
153 | ||||
154 | int | |||
155 | Xutf8TextExtents( | |||
156 | XFontSet font_set, | |||
157 | _Xconstconst char *text, | |||
158 | int text_len, | |||
159 | XRectangle *overall_ink_extents, | |||
160 | XRectangle *overall_logical_extents) | |||
161 | { | |||
162 | return (*font_set->methods->utf8_extents) (font_set, text, text_len, | |||
163 | overall_ink_extents, | |||
164 | overall_logical_extents); | |||
165 | } | |||
166 | ||||
167 | Statusint | |||
168 | Xutf8TextPerCharExtents( | |||
169 | XFontSet font_set, | |||
170 | _Xconstconst char *text, | |||
171 | int text_len, | |||
172 | XRectangle *ink_extents_buffer, | |||
173 | XRectangle *logical_extents_buffer, | |||
174 | int buffer_size, | |||
175 | int *num_chars, | |||
176 | XRectangle *max_ink_extents, | |||
177 | XRectangle *max_logical_extents) | |||
178 | { | |||
179 | return (*font_set->methods->utf8_extents_per_char) | |||
180 | (font_set, text, text_len, | |||
181 | ink_extents_buffer, logical_extents_buffer, | |||
182 | buffer_size, num_chars, max_ink_extents, max_logical_extents); | |||
183 | } |